Climatological Summary - 2005

  Jan   Feb   Mar   Apr   May   Jun   Jul   Aug   Sep   Oct   Nov   Dec
Air Temperatures (C)                                              
The Highest Maximum: 13.5 7th 11.4 11th 18.5 18th 21.5 30th 28.3 27th 31 19th 29.5 14th 31 31st 28.6 4th 22 10th 17.8 2nd 10.6
The Lowest Maximum: 3.3 22nd 1.2 24th 3.1 2nd 6.4 8th 11.7 9th 14.4 11th 14.7 27th 16.9 22nd 14.7 16th 13.3 31st 3.9 28th 0.5
The Highest Minimum: 6.7 4th 6.4 1st 10.1 17th 12.1 30th 13 26th 17.2 20th 17.2 15th 14.1 3rd,31st 17 10th 13.6 11th 14.2 3rd 6.9
The Lowest Minimum: -2.4 22nd -4 28th -3 4th -2.5 9th 0.5 12th 3.1 7th 8.9 5th 7.6 7th 3.2 24th 5 9th -4 20th -4.5
The Mean Maximum: 8.8   6.7   10.5   14.3   16.5   21   21.4   21.9   20.3   16.4   9.7   7.2
The Mean Minimum: 2.4   1.3   3.2   4.8   6.4   10.9   12.5   11.4   10.7   10.1   2.3   1.2
The Overall Mean: 5.6   4   6.9   9.6   11.5   16   17   16.7   15.5   13.3   6   4.2
Difference from the Monthly Mean: 1.2   -0.7   -0.6   0.5   -1   1   -0.3   0.1   1.5   3   -0.9   -1.3
                                               
Relative Humidity (%)                                              
Highest Relative Humidity (at 0900): 100 14th,22nd 100 7th,11th,23rd,28th 100 29th,30th,31st 96.2 4th 94.4 3rd 95.9 25th 99 28th 97 22nd 97.8 11th 98.9 17th 98.5 24th 100
Lowest Relative Humidity (at 0900): 65 2nd 69.1 14th 66.9 7th 67.4 22nd 54.6 18th 58.8 23rd 59.4 14th 58.1 3rd 71.3 6th 77.2 4th 83 30th 66.8
Mean Relative Humidity (at 0900): 90.6   90.1   89.5   81.2   76.5   76.5   77.5   77.6   86   91.3   94.1   92.7
                                               
Dew Point (C)                                              
The Highest Dew Point (at 0900): 10.4 10th 8.6 12th 11.3 22nd 14 30th 17.1 27th 20 18th 18.3 13th 17.7 31st 17.9 14th 16.4 12th 14.1 2nd 7.1
The Lowest Dew Point (at 0900): -1.6 2nd -4 27th -2.9 7th 2.4 8th 3.4 17th 5.9 7th 10.1 31st 8.7 7th 4.2 17th 6.4 2nd -2.9 25th -4.6
The Mean Dew Point (at 0900): 3.6   1.9   4.6   6.8   8.4   12.6   13.3   13   13.1   11.7   4.1   2.9
                                               
Rainfall                                              
Total (mm) 23.6   41.5   32   34.4   43.6   57.5   47.9   54.7   76.6   50.3   34.4   34.6
Difference from the Monthly Mean (%) 45.1   110.1   71.1   65.5   87.6   100.7   100   112.3   135.1   91.3   64.4   55
Duration (hrs) 28.2   59.2   32.1   26.6   27.9   21.3   40   24.8   32.8   44   21.5   32.3
Highest 24 hour fall (from 0900,mm): 5.6 18th 12.7 10th 11.3 29th 6.4 30th 9.2 21st 22.3 24th 23.1 24th 13.1 18th 27.5 15th 18.4 23rd 10.2 6th 8.7
Rain Days (>/=0.2mm): 14   17   12   17   12   10   8   12   13   12   15   13
Wet Days (>/=1.0mm): 8   10   9   8   11   8   4   9   10   9   7   7
                                               
Sunshine (hrs)                                              
Total Duration of Bright Sunshine: 58.8   75.2   71.9   129.9   200.5   181.9   145.9   187.4   148.9   67.6   68   49.3
Sunniest day: 6.8 23rd 8 27th 8.5 3rd 11.7 21st 11.5 14th,15th 13 23rd,27th 13.5 11th 12.6 8th 11.2 2nd 7 2nd 6.7 1st 4.1
Sunless days: 12   7   8   2   1   2   5   1   2   8   5   7
Cloud cover (mean at 0900, oktas): 5.6   6.7   7   6.4   6.3   5.6   6.4   5.1   5.1   6.1   4.5   5.8
                                               
Pressure (reduced to sea level,mb):                                              
The Highest Pressure: 1035.6 26th 1036.3 3rd 1033.5 9th 1030.5 11th 1027.7 11th 1037.6 8th 1032.6 11th 1025.8 4th,15th 1029.5 3rd 1032.4 4th 1039.1 23rd 1041.2
The Lowest Pressure: 995.2 18th 1000.1 12th 999.9 2nd 992.1 18th 1004.8 22nd 1005.2 30th 1002.4 25th 1002.4 25th 1007.8 25th 993.1 21st 992.6 26th 980.5
Mean Pressure (recorded at 0900): 1021.1   1021.7   1016.1   1013   1016.3   1018.8   1015.5   1018.1   1018.1   1014.7   1015.7   1017.9
                                               
Winds                                              
Run of wind (mean over 24 hrs, miles): 197.4   143.1   126.7   124.1   125.9   86.9   96.4   90.2   81.6   102.5   141.5   120.2
Mean daily wind speed (mph) 10.7   7.8   6.9   6.7   6.8   4.7   5.2   4.9   4.4   5.6   7.7   6.5
Run of wind (monthly, miles): 6120.8   4006.3   3927.3   3723.9   3902.2   2605.5   2988.5   2794.9   2446.7   3176.6   4245.9   3725.3
Highest Maximum Gust (mph) 57 7th 58 12th 40 2nd,11th 40 5th 42 7th 29 4th 35 6th 29 3rd 32 15th 35 25th 50 24th 48
Other gusts 50mph or more: 51 20th 50 13th                                      
                                               
Highest wind strength (at 0900,mph): 23.1 4th 26.5 12th 19.6 16th 30 6th 19.6 7th 12.7 4th 11.8 6th 13.8 20th 13.8 16th 13.8 25th 18.4 26th 26.5
Mean wind strength (at 0900,mph): 12.7   8.6   8.8   9   8.9   6   7.4   6.2   4.7   6.2   7.8   8.1
Winds from the Following Directions:                                              
N 4   5   6   2   5   7   9   2   3   2   5   4
NE 0   3   2   3   2   2   1   1   1   4   1   2
E 0   0   1   2   2   1   3   0   3   2   0   0
SE 0   2   3   4   0   5   1   1   1   4   0   1
S 13   4   8   8   10   5   3   4   6   11   6   5
SW 2   1   1   3   3   2   5   5   7   4   6   6
W 5   1   1   2   1   5   2   2   4   1   2   3
NW 6   10   8   6   8   3   6   10   2   2   10   8
Calm 1   2   1   0   0   0   1   2   3   1   0   2
Ground Temperatures (C)                                              
Lowest Grass Minimum: -7.3 22nd -8.7 28th -8.5 4th -7.1 9th -2.8 11th -0.4 7th 5.6 5th 3.6 7th -1.3 24th 1.7 2nd,9th -7.6 25th -9.9
Mean Grass Minimum: -2.3   -2.3   -0.6   1.2   3.4   7.8   9.2   7.3   7.1   6.3   -1.5   -2.9
Lowest Concrete Minimum: -4.2 22nd -5.4 28th -5.4 2nd -3.2 9th 0.7 11th 3.5 7th 9.1 5th 7.6 7th 4 17th 5.4 9th -4.5 25th -5.2
Mean Concrete Minimum: -0.4   -0.7   1.3   4   6   11.3   13.1   11.4   10.8   9.6   1.5   0.5
Lowest Bare Earth Minimum: -1.6 14th,22nd,23rd -1.8 16th,20th -2 3rd -1.2 9th 1.7 17th 4.1 7th 9.2 5th 8.1 7th 3.7 24th 5.6 2nd,9th -3.7 25th -3.5
Mean Bare Earth Minimum: 1.3   1.1   3   4.9   6.6   11   12.7   11.1   10.6   9.3   2.1   0.7
                                               
Soil/Earth Temperatures (C)                                              
Surface mean: 4.3   3.5   5.8   9.6   13.5   18.3   19.3   17   14.8   12.5   5.6   3.6
5cm mean: 4   3.5   5.4   8.8   12   16.2   17.7   16   14.7   12.3   5.9   3.6
10cm mean: 4.3   3.8   5.6   8.9   12.1   16.4   18   16.4   15.2   12.6   6.3   3.9
20cm mean: 4.7   4.5   6   9.3   12.4   16.4   18.2   16.9   15.4   13   7.3   4.5
30cm mean: 5   4.7   6.1   9.6   12.7   16.6   18.5   17.4   16.3   13.5   8   4.8
40cm mean: 5   4.7   5.8   9.5   12.4   16.4   18.3   17.2   16.1   13.5   8   4.8
50cm mean: 5.4   5.1   6.1   9.8   12.8   16.4   18.4   17.5   16.5   13.8   8.9   5.4
100cm mean: 6   5.6   5.6   8.6   11.5   14.3   16.6   16.4   16   13.7   10.4   6.5
                                               
                                               
Days with:                                              
Thunder: 0   0   0   1   2 3   0   2   2   0   0   0
Hail less than 0.5mm: 0   0   1   1   2   0   0   0   0   0   1   0
Hail greater than/equal to 0.5mm: 0   0   0   0   0   0   0   0   0   0   0   0
Snow or snow & rain: 3   8   4   1   0   0   0   0   0   0   1   2
Snow lying: 1   5   1   0   0   0   0   0   0   0   0   4
Fog 0   5   4   2   0   1   0   0   2   3   2   4
Air Frost: 5   9   10   2   0   0   0   0   0   0   12   10
Duration of Air Frost (hrs) 17   64   60   14   0   0   0   0   0   0   38   52
Ground Frost: 25   20   14   9   6   1   0   0   2   0   19   26
Gales: 1   0   0   0   0   0   0   0   0   0   0   0

This page was created by Pitsford Hall weather station on 06 January 2006.