The month so far - in the British Isles

The data below are for the month of Dec 2025.

 site -09GMT MSL Pressure- --Rainfall-- --Maximum Temp--- --Minimum Temp--- --Sunshine-- Mean Temp Rain -Sun Pres09                      
        mean   high    low  Total 12hMx  Mean  High   Low  Mean  High   Low  Total   Max Temp Anom             Anom                      
          mb     mb     mb     mm    mm     C     C     C     C     C     C     hr    hr    C    C    %    %     mb                      
03002  996.6 1007.2  981.1   76.2  19.0   9.0  11.1   7.3   5.8   9.2  -2.2               7.4 +2.7   61              Baltasound          
03005  996.2 1007.5  982.0   82.6  21.0   8.6  10.3   7.0   6.1   8.9   1.4    3.4   2.4  7.3 +2.8   55   17   -9.3  Lerwick             
03008  995.4 1007.3  983.8   51.4  11.0   9.3  10.9   8.6   7.4   9.8   2.7               8.4 +2.7   50              Fair Isle           
03017  994.6 1007.2  984.7   31.4   8.0   8.9  10.6   7.5   5.9   9.6   0.1   10.6   3.9  7.4 +2.6   27   41         Kirkwall            
03023  990.2 1004.8  982.3   55.6  11.0  10.3  13.9   8.1   6.8   9.7   2.7               8.5 +2.6   42              South Uist Range    
03026  991.3 1005.0  983.7   61.0  11.0   9.9  12.5   8.1   7.2   9.5   4.1    2.4   1.4  8.5 +3.2   44    9  -15.1  Stornoway           
03034  992.3 1006.4  983.9   50.2  10.0  10.2  15.4   8.5   6.6  10.1   4.0               8.4 +2.7   30              Aultbea             
03044  993.6 1007.0  985.7   18.4   4.0   8.9  13.6   6.1   3.7   9.1  -1.2    8.1   3.3  6.3 +3.4   14   40         Altnaharra          
03047  995.0 1010.6  985.2  110.6  26.0   8.0  13.9   6.3   4.5   7.4   2.2    0.7   0.7  6.2 +3.5   50              Tulloch Bridge      
03062  994.1 1008.2  985.6   29.6   9.0   8.5  12.7   4.9   3.2   8.8  -1.2               5.9 +2.4   50              Tain Range          
03063  994.7 1009.3  984.9   44.6  13.0   7.9  14.4   3.5   3.4   7.6  -1.3    7.1   3.0  5.6 +3.4   41   24         Aviemore            
03066  994.5 1008.9  985.4   19.2   9.0   9.4  15.7   7.7   3.9   9.1  -1.3   14.3   5.6  6.7 +2.7   35   33         Kinloss             
03068  994.8 1008.9  985.7   20.6  10.0   9.1  13.1   6.9   3.8   8.7  -0.5               6.4 +2.6   38              Lossiemouth         
03075  994.5 1007.6  986.5   31.4  14.0   9.1  10.8   7.5   6.8   9.2   2.0               7.9 +3.6   45              Wick                
03080                                     8.6  12.6   2.4   3.0   9.0  -3.3               5.8 +3.1                   Aboyne              
03088  996.3 1010.4  985.3   61.0  13.0   8.4  11.0   7.0   5.2   7.8   0.6               6.8                        Inverbervie         
03091  996.2 1009.4  985.8   53.0  13.0   9.3  12.2   7.2   4.2   8.3  -1.3   17.2   4.6  6.7 +2.8   68   35  -12.2  Aberdeen Dyce       
03171  996.5 1011.0  985.3   59.6  14.0   9.5  14.6   7.8   4.6   8.9  -0.5   14.2   4.3  7.0 +3.1   94   27         Leuchars            
03100  991.8 1007.5  982.2   72.4  13.0  10.1  13.1   7.8   7.7   9.7   5.4    5.5   4.1  8.9 +2.5   49   16  -16.3  Tiree               
03105  994.2 1010.4  983.3   95.6  22.0   9.8  13.4   6.9   6.6   9.1   2.0               8.2                        Port Ellen          
03111  994.5 1010.7  983.6   81.8  18.0  10.0  13.7   7.9   5.9   9.6   0.5               7.9                        Machrihanish        
03132  996.4 1012.1  984.6   75.0  20.0  10.3  13.5   8.2   5.9   9.8  -0.7               8.1 +2.7   62              West Freugh         
03134                        93.8  14.0                     5.2   9.0   1.4    3.9   1.1             58    9         Glasgow Bishopton   
03136  995.8 1011.3  984.4   69.6  20.0  10.1  15.3   8.0   6.2   9.4   2.4   15.5   5.6  8.1 +3.0   67   41         Prestwick           
03144  996.2 1011.2  985.3   76.0  15.0   8.7  15.4   5.5   4.8   8.8  -0.9               6.8 +3.4   69              Strathallan         
03153  996.9 1012.2  984.5   65.4  16.0   9.4  12.5   7.4   6.9   9.0   3.8   12.5   4.9  8.1 +3.3   52              Dundrennan          
03155  996.2 1011.8  984.8   52.6  13.0   8.2  13.8   6.2   4.7   7.5   1.0               6.5 +3.3   52              Drumalbin           
03158  997.7 1012.1  985.9   55.6  12.0   8.8  14.3   6.2   4.0   8.2   0.1   13.6   3.3  6.4 +2.8   80   27         Charterhall         
03162  998.0 1013.0  985.5  131.4  25.0   8.0  13.3   5.7   4.8   8.0  -0.7    2.6   1.9  6.4 +3.7   64    7  -13.3  Eskdalemuir         
03166                        57.6  15.0  10.0  16.6   7.4   4.9   9.0   0.7   13.8   4.4  7.4 +3.2   77   37         Edinburgh Gogarbank 
03204  997.7 1012.7  985.2   79.6  19.0  11.2  14.0   8.5   8.5  10.8   4.7   17.0   5.7  9.9 +2.8   84   36         Ronaldsway          
03210  998.1 1013.0  985.0  115.8  17.0   9.5  13.9   6.8   6.7   9.2   3.2               8.1 +3.0  102              St Bees Head        
03212  998.4 1013.2  984.9  116.4  19.0  10.5  16.2   7.3                                            60              Keswick             
03214  999.0 1013.2  985.3   92.6  27.0  10.3  13.5   7.7   7.4  10.0   5.1               8.8                        Walney Island       
03220  998.2 1012.9  985.0   59.6  19.0  10.4  16.8   7.9   6.6  10.4   1.0               8.5 +3.9   61              Carlisle            
03224  998.4 1012.9  985.3   73.4  20.0   8.1  13.6   5.2   4.0   7.9  -0.4               6.0 +3.3   54              Spadeadam           
03225  998.9 1013.0  985.0  171.8  29.0   8.6  13.6   5.6   5.2   8.3  -0.6    1.7   0.8  6.9 +3.7   70              Shap Fell           
03226  999.0 1013.0  985.0   61.6  12.0   9.1  14.5   6.2   5.3   8.2  -0.2               7.2 +3.5   59              Warcop Range        
03230  998.4 1012.6  985.9   62.4  14.0   8.5  14.7   5.6   3.8   8.1  -2.4               6.1 +3.3   63              Redesdale           
03238  998.5 1012.1  985.4   38.6   8.0   8.7  13.9   5.8   4.0   7.4  -0.7               6.3 +2.6   60              Albermarle          
03240  998.5 1012.1  986.1   39.6  13.0   9.5  12.4   6.6                     22.0   6.0             61   38         Boulmer             
03257 1000.5 1013.7  986.6   38.8   7.0  10.2  15.2   6.3   5.5   8.9   2.2   22.1   6.3  7.8 +3.7   65   41  -11.6  Leeming             
03265 1001.1 1014.3  986.8   46.4   7.0  10.3  15.2   6.3   4.2   8.1  -0.9               7.2 +3.6   84              Topcliffe           
03275 1000.0 1012.5  986.8   21.8   7.0   9.1  13.4   5.6   5.3   8.0   1.0               7.2 +2.8   40              Loftus              
03281                        54.0  10.0                                                              56              Fylingdales         
03292 1001.7 1014.8  987.8   45.8   9.0  10.2  12.8   5.5   6.2   9.7   2.0               8.2 +3.1   72              Bridlington         
03344 1000.7 1013.8  986.8   65.4  13.0   9.3  14.2   5.6   5.0   8.2   1.4               7.2 +3.4   54              Bingley             
03346                        41.2   8.0                                                                              Emley Moor No.2     
03354 1002.9 1016.7  988.7   34.8   9.0  10.6  14.1   6.7   5.4   9.7   0.8   17.3   6.0  8.0 +3.4   50   31         Nottingham Wea Cen  
03377 1003.3 1016.6  989.3   39.8  10.0  10.8  14.4   6.9   5.6   9.1   0.2   17.2   6.5  8.2 +3.6   77   28  -10.2  Waddington          
03379 1003.5 1016.7  989.5   34.4  12.0  10.8  14.3   6.7   5.1   9.1   1.0               8.0 +3.5   63              Cranwell            
03382 1002.0 1015.1  987.9   52.4  10.0  10.5  14.4   5.3   5.9   9.7   1.6   18.8   6.6  8.2 +3.5   91   31         Leconfield          
03385 1003.2 1016.4  989.1               10.8  14.4   6.3   5.8   9.6   1.9               8.3                        Donna Nook          
03391 1003.8 1017.0  990.0   34.0  10.0  11.1  14.7   7.4   4.9   9.3   0.3               8.0 +3.5   67              Coningsby           
03392 1004.2 1017.3  990.3   30.4   5.0  10.4  13.3   6.9   5.5   8.7   1.0               8.0 +3.3   56              Wainfleet           
03302  999.0 1013.7  986.5   76.6  14.0  11.5  14.2   8.4   8.6  11.3   5.1    9.1   2.8 10.1 +3.3   82   19  -13.5  Valley              
03301  999.4 1014.1  986.8  101.2  23.0  10.9  14.2   8.4   7.3  11.0   2.2               9.1                        Raf Mona            
03305  999.8 1014.5  986.6  220.8  41.0  10.1  15.2   7.3   7.0  10.5   2.7               8.5 +3.5   64              Capel Curig         
03316 1000.0 1013.4  986.7   32.6   7.0  10.8  15.6   7.8   6.9  10.4   4.0               8.9 +3.3   35              Crosby              
03318  999.8 1013.6  986.3   68.8  14.0  10.4  14.8   7.6   6.3   9.6   3.1               8.4 +3.2   69              Blackpool           
03321 1000.7 1014.0  987.4   36.8   6.0  11.5  16.0   7.7   5.0   8.3  -0.1   21.6   5.0  8.3 +3.1   49   38         Hawarden            
03405 1000.0 1014.7  987.9   88.4  17.0  11.2  13.3   8.4   8.5  10.7   5.6   13.0   4.0  9.8 +2.7   90   30         Aberdaron           
03409 1000.2 1013.9  987.1  154.4  30.0  10.7  15.6   7.5   6.1  10.1  -1.9    5.7   2.4  8.4                        Bala                
03410 1000.6 1013.8  987.5  122.8  23.0   8.8  13.1   5.5   5.0   8.8   0.5    7.7   2.7  6.9 +2.9   57   20         Lake Vrynwy         
03502 1000.6 1014.7  989.5   86.0  17.0  11.0  14.0   7.8   6.8  10.7   2.2   10.7   2.6  8.9 +2.6   81   21  -13.1  Aberporth           
03503 1001.2 1014.4  989.4   89.2  22.0  11.6  15.0   8.3   6.6  11.5   1.0               9.1                        Trawscoed           
03507 1002.2 1014.9  990.1   93.4  19.0   9.7  13.2   6.1   5.5   9.3  -0.4               7.6 +3.9   49              Sennybridge         
03604 1001.1 1014.9  991.0   84.8  16.0  12.1  14.1   9.3   8.8  11.5   5.6              10.4 +3.2   68              Milford Haven       
03605 1001.6 1014.3  990.9   81.0  15.0  12.0  14.5   9.2   8.0  11.3   1.3              10.0 +3.9   65              Pembrey Sands       
03716 1003.4 1016.5  992.4   46.8   8.0  11.9  15.5   8.8   7.6  11.3   1.1   18.5   6.3  9.8 +3.6   39   36         St Athan            
03330 1002.0 1015.7  988.1   57.2  11.0   9.0  12.5   5.8   4.8   8.6   0.9               6.9 +3.2   57              Leek Thorncliffe    
03414 1001.6 1015.5  988.3   39.0   7.0  11.2  15.6   6.9                                            59              Shawbury            
03520 1002.5 1016.0  989.6   53.6  11.0                     3.8   9.9  -3.0   12.8   4.0             62   23         Shobdon             
03522 1003.0 1016.8  990.2   53.8   9.0  11.4  14.7   8.2   4.4   9.6  -3.1               7.9 +3.0   74              Hereford Credenhill 
03529 1003.7 1017.8  991.0   35.4   6.0  11.8  15.1   8.2   5.6  10.9  -2.1               8.7 +3.7   60              Pershore            
03535 1002.9 1017.0  989.7   39.0   7.0  11.2  14.6   7.3   5.6   9.6   1.1               8.4 +3.6   60              Coleshill           
03544 1003.6 1017.3  990.5   40.6   8.0  11.2  14.4   7.2   5.7  10.2   0.3               8.4 +3.8   68              Church Lawford      
03647 1003.8 1017.5  991.6   65.6  16.0  10.2  13.0   6.3   4.9  10.3  -0.3               7.6 +3.4   79              Little Rissington   
03649 1004.5 1018.2  992.6   46.4  10.0  11.8  14.6   8.6   5.4  11.3  -2.0   17.4   5.9  8.6 +3.6   63   31         Brize Norton        
03658 1005.0 1018.7  993.3   36.6   7.0  11.7  14.8   7.9   5.1  11.4  -1.7               8.4 +3.8   63              Benson              
03462 1003.9 1017.0  990.3   36.2  11.0  11.1  14.6   7.0   5.3   9.1  -0.5   21.8   6.6  8.2 +3.6   68   34         Wittering           
03469                        26.8   6.0                     5.7   9.4   0.7                          51              Holbeach            
03482 1005.3 1018.2  991.9   24.2   6.0  11.4  14.7   7.9   5.1   8.9  -0.1               8.3 +3.8   41              Marham              
03488 1005.2 1017.8  991.8   24.2   6.0  11.5  14.5   7.3   6.5  10.6   2.3   27.6   6.4  9.0 +3.4   39              Weybourne           
03931 1005.9 1018.8  992.9               11.7  17.5   7.7                                                            Tibenham            
03560 1004.8 1018.4  991.7   26.0   6.0  11.4  14.8   7.2   5.7  10.6  -0.1               8.6 +3.9   47              Bedford             
03590 1006.5 1019.7  993.5   28.0   5.0  11.0  13.6   7.3   5.8  10.8   0.4   23.9   5.8  8.4 +3.8   50   40         Wattisham           
03684 1006.2 1019.7  993.5   27.4   6.0  11.3  13.9   7.4   5.9  11.0   0.2               8.6 +3.9   48              Andrewsfield        
03693 1007.3 1020.7  995.1   15.2   3.0  12.0  14.3   8.5   6.8  11.2  -0.1   21.9   4.5  9.4 +3.6   31   38         Shoeburyness        
03707 1003.5 1015.7  993.9   73.4  13.0                     7.4  11.6   2.4                          69              Chivenor            
03740 1004.4 1018.1  993.2   57.2  14.0  11.1  14.3   7.8   6.2  11.0   1.4   16.4   6.9  8.7 +3.8   73   30  -10.8  Lyneham             
03743 1005.2 1018.7  994.5   69.0  14.0  11.4  14.1   8.3   5.4  11.0  -0.9               8.4 +3.4   79              Larkhill            
03803 1003.5 1016.1  991.9   65.6  15.0  12.6  14.7   8.9   9.9  12.5   7.4              11.2 +2.4   66              Scilly/St. Marys    
03808 1004.1 1016.1  994.6  110.8  24.0  12.0  14.3   8.7   8.0  12.0   4.5   19.3   5.8 10.0 +2.3   88   35  -11.3  Camborne            
03809 1004.3 1015.9  995.3   90.2  19.0  12.3  14.8   8.3   8.1  12.1   2.4              10.2 +2.6   78              Culdrose RNAS       
03823 1004.1 1015.2  996.2  126.2  24.0  11.1  13.4   7.5   6.2  10.8   2.1               8.6 +2.4   75              Cardinham           
03827 1005.0 1016.8  997.1   98.2  23.0  12.6  14.4  10.2   8.1  12.1   1.6              10.3 +3.1   78              Plymouth            
03840                        94.2  18.0  10.5  13.1   7.2   5.9  10.7   1.4               8.2 +3.2   79              Dunkeswell          
03853 1004.7 1018.0  994.6   53.8  11.0  12.4  15.0   9.2   5.6  12.2  -1.3   23.6   6.6  9.0 +3.4   70   44         Yeovilton           
03844                                    12.4  15.4   9.4                                                            Exeter AirportNo2   
03930 1003.9 1017.8  992.6               11.9  14.9   8.9                                                            Almondsbury         
03857 1005.7 1018.7  996.3   56.6   9.0  12.3  14.2   9.8   9.7  11.9   7.7              11.0 +3.2   72              Isle of Portland    
03672 1006.1 1019.5  994.2   32.0   6.0  12.3  14.6   8.5   5.9  11.7  -3.0               9.1 +3.6   51              Northolt            
03746 1005.3 1018.6  994.8   62.0  14.0  11.4  14.0   8.4   5.3  11.0  -0.8               8.4 +3.4   73              Boscombe Down       
03749 1005.5 1018.8  994.7   77.8  14.0  11.7  14.5   8.6   5.7  11.3  -2.6               8.7 +3.5   87              Middle Wallop       
03761 1005.8 1019.2  994.8   54.2   9.0  11.6  14.1   8.4   6.6  11.1   1.5   22.3   5.4  9.1 +4.1   66   38         Odiham              
03769 1006.7 1020.0  995.3   54.6  13.0  12.0  14.1   8.3   5.3  11.4  -3.0   13.5   4.2  8.6 +3.6   57   29         Charlwood           
03772 1006.1 1019.6  994.4   29.0   7.0  12.3  15.0   8.6   6.7  11.8  -1.1   23.2   5.6  9.5 +3.6   51   42   -9.2  Heathrow            
03781 1006.7 1019.9  995.1   40.8   8.0  10.7  13.2   7.5   6.6  10.9   1.6               8.7 +3.6   45              Kenley              
03796 1008.4 1021.7  996.9               11.3  12.8   9.3   7.7  11.5   2.4               9.5                        Langdon Bay         
03797 1008.1 1021.5  996.3   23.2   9.0  11.8  14.3   9.0   6.7  11.8   0.8   16.0   4.9  9.2 +3.5   37   27   -7.4  Manston             
03862 1005.8 1019.2  995.7   59.4  13.0  12.4  14.4   9.9                     18.2   5.6             57   30   -9.8  Bournemouth Hurn    
03866 1006.5 1020.0  995.0   62.4   9.0  12.3  14.0  10.5   9.5  12.1   5.6              10.9                        St Catherines Point 
03872 1006.6 1020.2  994.7   59.8   9.0  12.2  14.2   9.6   7.8  11.4  -1.6              10.0 +3.9   65              Thorney Island      
03876 1007.3 1021.1  995.8   49.6   8.0  12.3  13.7   9.9   7.2  11.9  -2.9               9.8 +3.9   57              Shoreham            
03882                                    11.9  14.0   9.0                                                            Herstmonceux        
03894 1008.1 1019.9  999.1               12.3  14.4   9.9   9.3  12.4   5.3              10.8 +2.7             -8.4  Guernsey Airport    
03895 1008.8 1020.6  999.3   64.8  14.0  11.9  14.3   9.6   8.8  11.8   3.9   16.0   5.2 10.3                        Jersey Airport      
03896                        74.4  18.0                     9.1  11.9   3.8   24.9   7.0                             St Helier           
03901  993.9 1010.4  980.1   62.6  11.0   9.4  15.2   7.5   4.9   8.1   1.6   13.4   5.1  7.2                        Thomastown          
03904  993.5 1010.0  980.1   50.2  11.0   9.7  15.1   7.8   4.7   8.1   0.9               7.2 +2.5   38              Castlederg          
03907  993.6 1010.0  981.2   36.6  10.0  10.1  16.3   7.5   5.9   8.9   2.4   11.8   4.0  8.0                        Magilligan          
03911  994.8 1011.3  982.5   68.6  17.0   8.0  13.0   5.6   4.0   6.7   0.3               6.0 +2.1   47              Lough Fea           
03915  994.4 1010.7  982.8   60.0  16.0   9.2  14.7   6.3   5.1   7.9   2.1               7.2 +2.3   64              Port Glenone        
03916  994.5 1010.6  983.0   68.2  17.0   8.7  14.4   5.3   5.2   7.9   0.5               7.0 +1.9   47              Ballypatrick Forest 
03917  995.3 1011.3  983.8   44.0  11.0   9.3  14.9   6.3   5.6   8.4   2.8   13.7   5.8  7.5 +2.5   53   29  -15.5  Aldergrove          
03923  995.0 1011.5  982.8   57.8  20.0   8.8  13.5   6.2   4.1   6.7   0.9               6.5 +1.8   54              Glennane            
03953  995.8 1011.8  973.9  117.6  16.0  11.5  15.3   9.2   8.2  12.0   4.3               9.9 +1.8   67       -17.0  Valentia            
03955  997.3 1013.5  980.4   86.4  28.0  10.0  13.1   7.1   5.5  10.4   1.7   27.9   6.9  7.7 +1.5   64   51  -16.0  Cork Airport        
03956  998.7 1014.0  987.1   78.8  17.0  11.2  14.0   7.2   7.1  11.3   3.1               9.1                        Johnstown Castle    
03962  995.5 1012.0  977.5   53.5   8.0  10.8  15.5   7.8   6.1  10.0   2.7   22.7   4.9  8.4 +2.0   46   49  -16.8  Shannon Airport     
03967  996.5 1012.5  983.4   40.5   9.0  10.6  16.0   6.4   6.3   9.7   2.6   24.8   6.9  8.4 +2.9   54   53         Casement Aerodrome  
03969  996.8 1013.1  985.0   31.6   5.0                     6.2   9.3   2.7   32.6   7.1             44   58  -15.3  Dublin Airport      
03973  993.2 1009.7  976.4   87.3  18.0   9.0  14.2   6.7   4.9   7.2   2.2    8.2   4.3  6.9                        Connaught Airport   
03976  991.5 1007.2  973.8   79.8  14.0  10.9  13.9   8.6   7.9  10.3   5.2               9.4 +2.4   55       -18.5  Belmullet           
03952  997.4 1013.6  980.8   54.5  19.0  11.1  14.0   8.0   7.8  11.2   4.3               9.5                        Roches Point        
03970  993.6 1010.1  976.8   84.7  15.0                                                                              Claremorris         
03971  995.7 1012.2  981.7   45.8   8.0  10.0  15.6   6.8   4.3   7.8   0.5               7.2        46              Mullingar           
03978  993.0 1009.3  978.0   49.4  11.0  10.4  16.1   7.8                                                            Finner              
03961  997.6 1013.7  984.2   61.3  18.0                     5.2  10.0   1.7                                          Oak Park            
03979  994.7 1010.4  980.9   54.4  18.0                     5.8   8.2   3.8                                          Ballyhaise          
03966  995.7 1012.1  979.8   45.8  10.0  10.4  15.2   7.0   5.7   8.9   2.9               8.0                        Gurteen             
03963  993.1 1009.2  974.4   82.4  14.0  11.2  14.3   9.4   8.8  10.6   6.3              10.0                        Mace Head           
03951  997.0 1013.1  977.2   84.8  19.0  11.6  14.3   9.3   9.0  11.4   5.2              10.3                        Sherkin Island      
03980  992.6 1008.9  980.0   39.2  11.0   9.9  15.2   8.0   6.3   9.2   1.9               8.1 +1.5   30       -16.7  Malin Head          
 site -09GMT MSL Pressure- --Rainfall-- --Maximum Temp--- --Minimum Temp--- --Sunshine-- Mean Temp Rain -Sun Pres                        
The data above are for the month of Dec 2025 ending at 06GMT on day 13.

Averages refer to the period 1991-2020 in all cases.

09GMT MSL Pressure (mb) : mean, highest and lowest MSL pressure at 0900GMT
Rainfall (mm) : total starting 0600GMT/1st, and greatest 12-hour fall ending 06GMT or 18GMT
Maximum Temperature (degC) : for the period 06-18GMT, mean, highest and lowest
Minimum Temperature (degC) : for the period 18-06GMT, mean, highest and lowest
Sunshine (h) : total and highest daily value
Mean Temperature (degC) : the average of the mean maximum and mean minimum
Temperature anomaly (degC) : the departure from the climatological average
Rainfall percentage (%) : the monthly total as a percentage of the climatological average
Sunshine percentage (%) : the monthly total as a percentage of the climatological average (an asterisk denotes site now uses a Kipp-Zonen instrument). This change was made to the tables on 27.08.2008. Climatological averages are for 30-years of pseudo-KZ observations in this case)
Pressure anomaly (mb) : the departure from the climatological average