Blackfield Weather

Blackfield Village, New Forest, Hampshire, UK
50° 49' N Lat. 1° 22' W Lon. 25m elevation

Climate

Please note that there were significant changes to the weather station from 28 - 30 July 2019. Windchill was only recorded from these dates, and the wind sensors were recalibrated and checked. This showed that previous windspeed and gust readings were significantly low. The previous readings have not been adjusted. Obviously, this means that wind data before 1 August 2019 is not accurate (though it was consistent with itself) and should not be compared with data after then. Pressure, temperature (including heat index), dew point, precipitation, humidity data, and wind direction were similarly (and reasonably accurately) recorded from 1 February 2018 when the weather station was first in operation and may be validly compared from year to year.


Blackfield Weather

Temperature (°C) (Maximum)
      Jan    Feb    Mar    Apr    May    June   July   Aug    Sept   Oct    Nov    Dec    Annual Av.
2019  12.6   17.3   18.8   26.3   22.9   28.6   27.7   26.6   -      -      -      -      22.60  
2018  -      12.4   14.4   25.7   28.7   29.1   31.7   31.7   24.9   24.4   24.4   16.4   23.98  
Av:   12.6   14.8   16.6   26.0   25.8   28.9   29.7   29.1   24.9   24.4   24.4   16.4   23.29  

Temperature (°C) (Minimum)
      Jan    Feb    Mar    Apr    May    June   July   Aug    Sept   Oct    Nov    Dec    Annual Av.
2019  -5.2   -4.6   0.7    0.2    2.1    6.1    10.3   9.1    -      -      -      -      2.34   
2018  -      -5.3   -4.3   4.1    2.4    8.7    11.4   7.3    2.4    -1.1   -0.5   -0.7   2.22   
Av:   -5.2   -5.0   -1.8   2.1    2.2    7.4    10.9   8.2    2.4    -1.1   -0.5   -0.7   2.28   

Temperature (°C) (Average)
      Jan    Feb    Mar    Apr    May    June   July   Aug    Sept   Oct    Nov    Dec    Annual Av.
2019  5.0    7.1    9.1    10.6   12.9   15.8   19.7   17.6   -      -      -      -      12.23  
2018  -      3.8    5.9    10.6   14.9   17.8   20.7   18.0   15.1   11.6   11.7   9.3    12.69  
Av:   5.0    5.5    7.5    10.6   13.9   16.8   20.2   17.8   15.1   11.6   11.7   9.3    12.46  

Frost Days
      Jan    Feb    Mar    Apr    May    June   July   Aug    Sept   Oct    Nov    Dec    Annual Tot.
2019  14     2      0      0      0      0      0      0      -      -      -      -      16     
2018  -      14     6      0      0      0      0      0      0      2      1      1      24     
Av:   14     8      3      0      0      0      0      0      0      2      1      1      20     

Windchill (°C) (Maximum)
      Jan    Feb    Mar    Apr    May    June   July   Aug    Sept   Oct    Nov    Dec    Annual Av.
2019  -      -      -      -      -      -      27.7   26.6   -      -      -      -      27.14  
2018  -      -      -      -      -      -      -      -      -      -      -      -      -      
Av:   -      -      -      -      -      -      27.7   26.6   -      -      -      -      27.14  

Windchill (°C) (Minimum)
      Jan    Feb    Mar    Apr    May    June   July   Aug    Sept   Oct    Nov    Dec    Annual Av.
2019  -      -      -      -      -      -      10.0   9.1    -      -      -      -      9.53   
2018  -      -      -      -      -      -      -      -      -      -      -      -      -      
Av:   -      -      -      -      -      -      10.0   9.1    -      -      -      -      9.53   

Windchill (°C) (Average)
      Jan    Feb    Mar    Apr    May    June   July   Aug    Sept   Oct    Nov    Dec    Annual Av.
2019  0.0    0.0    0.0    0.0    0.0    0.0    15.2   17.5   -      -      -      -      4.08   
2018  -      0.0    0.0    0.0    0.0    0.0    0.0    0.0    0.0    0.0    0.0    0.0    0.00   
Av:   0.0    0.0    0.0    0.0    0.0    0.0    7.6    8.7    0.0    0.0    0.0    0.0    2.04   

Heat Index(°C) (Maximum)
      Jan    Feb    Mar    Apr    May    June   July   Aug    Sept   Oct    Nov    Dec    Annual Av.
2019  12.6   17.3   18.8   26.3   22.9   30.0   29.7   26.6   -      -      -      -      23.01  
2018  -      12.4   14.4   25.7   28.7   29.1   32.1   32.6   24.9   24.4   24.4   16.4   24.10  
Av:   12.6   14.8   16.6   26.0   25.8   29.5   30.9   29.6   24.9   24.4   24.4   16.4   23.56  

Heat Index(°C) (Average)
      Jan    Feb    Mar    Apr    May    June   July   Aug    Sept   Oct    Nov    Dec    Annual Av.
2019  5.0    7.1    9.1    10.6   12.9   15.8   19.7   17.6   -      -      -      -      12.23  
2018  -      3.8    5.9    10.6   14.9   17.8   20.7   18.0   15.1   11.6   11.7   9.3    12.69  
Av:   5.0    5.5    7.5    10.6   13.9   16.8   20.2   17.8   15.1   11.6   11.7   9.3    12.46  

Wind Speed (Knots) (Maximum)
      Jan    Feb    Mar    Apr    May    June   July   Aug    Sept   Oct    Nov    Dec    Annual Av.
2019  20.0   20.8   27.8   19.1   15.7   20.0   33.9   58.7   -      -      -      -      26.99  
2018  -      20.0   18.3   16.5   14.7   13.9   16.5   20.0   20.8   15.7   15.7   19.1   17.38  
Av:   20.0   20.4   23.0   17.8   15.2   16.9   25.2   39.3   20.8   15.7   15.7   19.1   22.18  

Wind Speed (Knots) (Average)
      Jan    Feb    Mar    Apr    May    June   July   Aug    Sept   Oct    Nov    Dec    Annual Av.
2019  1.1    1.2    1.9    1.1    0.9    1.1    1.5    3.8    -      -      -      -      1.56   
2018  -      1.4    1.3    1.3    0.8    0.9    0.8    0.8    1.1    0.9    0.9    1.0    1.02   
Av:   1.1    1.3    1.6    1.2    0.9    1.0    1.1    2.3    1.1    0.9    0.9    1.0    1.29   

Wind Direction (Degrees) (Average)
      Jan    Feb    Mar    Apr    May    June   July   Aug    Sept   Oct    Nov    Dec    Annual Av.
2019  237    185    221    140    212    189    212    218    -      -      -      -      201.7  
2018  -      179    172    176    181    174    207    229    206    205    207    146    189.2  
Av:   237    182    196    158    196    181    209    224    206    205    207    146    195.4  

Wind Run(NM's)
      Jan    Feb    Mar    Apr    May    June   July   Aug    Sept   Oct    Nov    Dec    Annual Tot.
2019  1031.7 999.7  1850.9 1038.7 889.2  1045.8 1423.4 2708.1 -      -      -      -      10987.5
2018  -      1188.8 1236.0 1227.5 780.6  865.5  826.5  825.9  1079.9 872.4  852.9  927.6  10683.4
Av:   1031.7 1094.3 1543.4 1133.1 834.9  955.6  1124.9 1767.0 1079.9 872.4  852.9  927.6  10835.5

Pressure (hPa) (Maximum)
      Jan    Feb    Mar    Apr    May    June   July   Aug    Sept   Oct    Nov    Dec    Annual Av.
2019  1044.3 1036.7 1037.2 1030.1 1039.9 1027.6 1027.0 1028.3 -      -      -      -      1033.89
2018  -      1030.5 1034.1 1028.2 1027.6 1031.2 1026.6 1024.5 1039.3 1038.4 1038.4 1028.9 1031.61
Av:   1044.3 1033.6 1035.6 1029.1 1033.8 1029.4 1026.8 1026.4 1039.3 1038.4 1038.4 1028.9 1032.75

Pressure (hPa) (Minimum)
      Jan    Feb    Mar    Apr    May    June   July   Aug    Sept   Oct    Nov    Dec    Annual Av.
2019  980.9  981.2  986.1  990.8  991.7  997.0  1000.6 998.5  -      -      -      -      990.85 
2018  -      995.1  982.9  991.6  1002.8 1010.8 1002.8 1004.4 999.0  995.7  995.7  991.2  997.45 
Av:   980.9  988.1  984.5  991.2  997.2  1003.9 1001.7 1001.4 999.0  995.7  995.7  991.2  994.15 

Pressure (hPa) (Average)
      Jan    Feb    Mar    Apr    May    June   July   Aug    Sept   Oct    Nov    Dec    Annual Av.
2019  1019.0 1020.2 1017.4 1013.0 1017.2 1014.5 1015.2 1014.2 -      -      -      -      1016.34
2018  -      1017.4 1001.4 1010.6 1017.7 1019.5 1016.5 1017.3 1021.4 1018.4 1018.8 1011.3 1015.48
Av:   1019.0 1018.8 1009.4 1011.8 1017.4 1017.0 1015.8 1015.8 1021.4 1018.4 1018.8 1011.3 1015.91

Precipitation (mm) (Total)
      Jan    Feb    Mar    Apr    May    June   July   Aug    Sept   Oct    Nov    Dec    Annual Tot.
2019  33.0   98.4   87.6   29.6   15.8   96.6   45.4   91.4   -      -      -      -      497.8  
2018  -      56.4   150.6  98.2   51.0   1.8    34.0   110.2  46.4   66.8   66.8   153.8  836.0  
Av:   33.0   77.4   119.1  63.9   33.4   49.2   39.7   100.8  46.4   66.8   66.8   153.8  666.9  

Rain Days (>0.50 mm)
      Jan    Feb    Mar    Apr    May    June   July   Aug    Sept   Oct    Nov    Dec    Annual Tot.
2019  9      11     14     6      5      11     7      11     -      -      -      -      74     
2018  -      9      23     14     11     1      3      9      5      8      8      16     107    
Av:   9      10     19     10     8      6      5      10     5      8      8      16     90     

Snow (mm) (Total)
      Jan    Feb    Mar    Apr    May    June   July   Aug    Sept   Oct    Nov    Dec    Annual Tot.
2019  5.1    0.0    0.0    0.0    0.0    0.0    0.0    0.0    -      -      -      -      5.1    
2018  -      0.3    90.0   0.0    0.0    0.0    0.0    0.0    0.0    0.0    0.0    0.0    90.3   
Av:   5.1    0.2    45.0   0.0    0.0    0.0    0.0    0.0    0.0    0.0    0.0    0.0    47.7   

Snow Days
      Jan    Feb    Mar    Apr    May    June   July   Aug    Sept   Oct    Nov    Dec    Annual Tot.
2019  2      0      0      0      0      0      0      0      -      -      -      -      2      
2018  -      3      2      0      0      0      0      0      0      0      0      0      5      
Av:   2      2      1      0      0      0      0      0      0      0      0      0      4      

Warm Days (Tmax > 20C)
      Jan    Feb    Mar    Apr    May    June   July   Aug    Sept   Oct    Nov    Dec    Annual Tot.
2019  0      0      0      5      5      12     30     20     -      -      -      -      72     
2018  -      0      0      2      17     25     29     24     16     3      3      0      119    
Av:   0      0      0      4      11     19     30     22     16     3      3      0      96     

Summery Days (Tmax > 25C)
      Jan    Feb    Mar    Apr    May    June   July   Aug    Sept   Oct    Nov    Dec    Annual Tot.
2019  0      0      0      2      0      5      7      1      -      -      -      -      15     
2018  -      0      0      1      4      10     23     6      0      0      0      0      44     
Av:   0      0      0      2      2      8      15     4      0      0      0      0      30     

Tropical Days( Tmax > 30C)
      Jan    Feb    Mar    Apr    May    June   July   Aug    Sept   Oct    Nov    Dec    Annual Tot.
2019  0      0      0      0      0      0      0      0      -      -      -      -      0      
2018  -      0      0      0      0      0      5      1      0      0      0      0      6      
Av:   0      0      0      0      0      0      3      1      0      0      0      0      3      

Calm Days (Wind run <=40nm)
      Jan    Feb    Mar    Apr    May    June   July   Aug    Sept   Oct    Nov    Dec    Annual Tot.
2019  22     20     15     22     25     20     17     4      -      -      -      -      145    
2018  -      14     17     17     23     23     25     26     21     20     19     25     230    
Av:   22     17     16     20     24     22     21     15     21     20     19     25     188    

Windy Days (wind run >200nm)
      Jan    Feb    Mar    Apr    May    June   July   Aug    Sept   Oct    Nov    Dec    Annual Tot.
2019  0      0      0      0      0      0      0      2      -      -      -      -      2      
2018  -      0      0      0      0      0      0      0      0      0      0      0      0      
Av:   0      0      0      0      0      0      0      1      0      0      0      0      1      

Days with Gales
      Jan    Feb    Mar    Apr    May    June   July   Aug    Sept   Oct    Nov    Dec    Annual Tot.
2019  0      0      0      0      0      0      0      1      -      -      -      -      1      
2018  -      0      0      0      0      0      0      0      0      0      0      0      0      
Av:   0      0      0      0      0      0      0      1      0      0      0      0      0      

Wash-out days (precipitation > 10mm)
      Jan    Feb    Mar    Apr    May    June   July   Aug    Sept   Oct    Nov    Dec    Annual Tot.
2019  1      3      3      1      1      4      1      3      -      -      -      -      17     
2018  -      2      6      4      1      0      1      2      2      1      1      6      26     
Av:   1      3      5      3      1      2      1      3      2      1      1      6      22     
                         ANNUAL CLIMATOLOGICAL SUMMARY FOR 2019

NAME: Blackfield Weather
ELEV: 25.0 Metres  LAT: 050° 48' 33" N  LONG: 001° 22' 01" W


                    TEMPERATURE (°C), HEAT BASE 18.3, COOL BASE 18.3

                          DEP  HEAT  COOL
       MEAN  MEAN        FROM  DEG   DEG                        MAX  MAX  MIN  MIN
YR MO  MAX   MIN   MEAN  NORM  DAYS  DAYS  HI  DATE  LOW  DATE  >=32 <=0  <=0  <=-17
--------------------------------------------------------------------------------------
19  1   7.8   1.7   5.0   0.0   410     0  12.6  25  -5.2   31    0    0   14    0
19  2  10.6   3.6   7.2   1.7   293     0  17.3  27  -4.6    3    0    0    2    0
19  3  12.9   5.3   9.1   1.6   279     0  18.8  30   0.7   26    0    0    0    0
19  4  15.4   6.0  10.6  -0.0   224     7  26.3  20   0.2    3    0    0    0    0
19  5  17.7   7.8  12.9  -1.0   169     4  22.9  21   2.1    5    0    0    0    0
19  6  20.3  11.5  15.8  -1.0    93    19  28.6  29   6.1    9    0    0    0    0
19  7  23.9  15.4  19.7  -0.5    31    74  27.7  25  10.3   29    0    0    0    0
19  8  21.7  13.4  17.6  -0.2    38    20  26.6   2   9.1   21    0    0    0    0
--------------------------------------------------------------------------------------
       16.3   8.1  12.2   0.1  1538   124  28.6   6  -5.2    1    0    0   16    0


                                       PRECIPITATION (mm)

               DEP.   MAX        DAYS OF RAIN
               FROM   OBS.           OVER
YR MO  TOTAL   NORM   DAY  DATE  0.2   2  20
---------------------------------------------
19  1  33.00   -0.00  11.40  22   14   5   0
19  2  98.40   21.00  27.20   8   18   9   1
19  3  87.60  -31.50  17.40  12   15  10   0
19  4  29.60  -34.30  11.60   4    9   5   0
19  5  15.80  -17.60  10.60   8    7   1   0
19  6  96.60   47.40  38.20   7   13   8   1
19  7  45.40    5.70  14.00  19    8   4   0
19  8  91.40   -9.40  22.00  16   12   8   1
---------------------------------------------
      497.80   -0.60  38.20   6   96  50   3


                                       WIND SPEED (Knots)

                        DOM
YR MO  AVG.  HI   DATE  DIR
----------------------------
19  1  1.1  20.0   27   W
19  2  1.2  20.8    7   ESE
19  3  1.9  27.8   10   W
19  4  1.1  19.1   27   ESE
19  5  0.9  15.7    8   WSW
19  6  1.1  20.0    8   W
19  7  1.5  33.9   30   W
19  8  3.9  58.7   10   WSW
----------------------------
       1.6  58.7    8   SW
                         ANNUAL CLIMATOLOGICAL SUMMARY FOR 2018

NAME: Blackfield Weather
ELEV: 25.0 Metres  LAT: 050° 48' 33" N  LONG: 001° 22' 01" W


                    TEMPERATURE (°C), HEAT BASE 18.3, COOL BASE 18.3

                          DEP  HEAT  COOL
       MEAN  MEAN        FROM  DEG   DEG                        MAX  MAX  MIN  MIN
YR MO  MAX   MIN   MEAN  NORM  DAYS  DAYS  HI  DATE  LOW  DATE  >=32 <=0  <=0  <=-17
--------------------------------------------------------------------------------------
18  1
18  2   7.6   0.0   3.8  -1.6   403     0  12.4  19  -5.3   28    0    0   14    0
18  3   9.6   2.8   5.9  -1.6   380     0  14.4  16  -4.3    1    0    1    6    0
18  4  14.2   7.8  10.7   0.0   232     4  25.7  20   4.1    1    0    0    0    0
18  5  20.9   9.2  14.9   1.0   131    26  28.7   7   2.4    1    0    0    0    0
18  6  23.1  12.8  17.8   1.0    57    41  29.1  29   8.7   22    0    0    0    0
18  7  26.2  15.2  20.5   0.3    23    91  31.7   1  11.4   12    0    0    0    0
18  8  22.8  13.5  18.0   0.2    53    44  31.7   3   7.3   11    0    0    0    0
18  9  20.0  10.6  15.2   0.0   107    14  24.9   3   2.4   25    0    0    0    0
18 10  16.5   7.5  11.8   0.2   197     4  24.4  13  -1.1   31    0    0    2    0
18 11  16.5   7.7  11.9   0.2   187     4  24.4  13  -0.5   30    0    0    1    0
18 12  12.0   6.3   9.3  -0.0   264     0  16.4   6  -0.7    2    0    0    1    0
--------------------------------------------------------------------------------------
       17.2   8.5  12.7  -0.0  2033   227  31.7   7  -5.3    2    0    1   24    0


                                       PRECIPITATION (mm)

               DEP.   MAX        DAYS OF RAIN
               FROM   OBS.           OVER
YR MO  TOTAL   NORM   DAY  DATE  0.2   2  20
---------------------------------------------
18  1
18  2  56.40  -21.00  16.20  14   11   6   0
18  3 150.60   31.50  17.60  30   23  17   0
18  4  98.20   34.30  16.40   2   16  12   0
18  5  51.00   17.60  14.40   2   12   8   0
18  6   1.80  -47.40   1.20  14    3   0   0
18  7  34.00   -5.70  29.40  29    4   2   1
18  8 110.20    9.40  46.60  26   13   5   2
18  9  46.40   -0.00  18.80  22    8   5   0
18 10  66.80    0.00  40.20  14   15   6   1
18 11  66.80    0.00  40.20  14   15   6   1
18 12 153.80   -0.00  48.80  10   20  11   1
---------------------------------------------
      836.00    0.45  48.80  12  140  78   6


                                       WIND SPEED (Knots)

                        DOM
YR MO  AVG.  HI   DATE  DIR
----------------------------
18  1
18  2113583700496713232.0  20.0   13   NW
18  3  1.3  18.3    1   ESE
18  4  1.3  16.5   30   ESE
18  5  0.8  14.7    2   E
18  6  0.9  13.9   14   WSW
18  7  0.8  16.5   28   WSW
18  8  0.8  20.0   10   W
18  9  1.1  20.8   21   WSW
18 10  0.9  15.7   22   NW
18 11  0.9  15.7   22   NW
18 12  1.0  19.1   28   E
----------------------------
     10325790954246658.0  20.8    9   SW