Climatological Obervations - February 2007

Observations at Pitsford Hall 1st 2nd 3rd 4th 5th 6th 7th 8th 9th 10th 11th 12th 13th 14th 15th 16th 17th 18th 19th 20th 21st 22nd 23rd 24th 25th 26th 27th 28th
Time of Observations (GMT) 9.00 9.00 9.00 9.00 9.00 9.00 9.00 9.00 9.00 9.00 9.00 9.00 9.00 9.00 9.00 9.00 9.00 9.00 9.00 9.00 9.00 9.00 9.00 9.00 9.00 9.00 9.00 9.00
Total Cloud (oktas) 0 6 0 2 6 6 2 8 9 8 6 8 _ _ 7 8 8 5 8 8 2 8 8 8 8 5 8 7
Wind                                                        
Direction wnw n nnw calm calm calm calm ne nne e ssw sse sw wnw sse se nw nnw sse s s sse sse w w nnw ssw ssw
Speed (knots) 2 6 1 0 0 0 0 16 2 1 3 9 3 12 17 2 9 6 3 3 8 14 7 7 4 12 9 5
Weather 0 2 0 10 10 2 0 73 43 61 1 2 2 1 1 2 10 1 1 20 1 20 1 10 2 2 2 2
Visibility 8 8 7 7 6 7 5 4 3 5 7 7 _ _ 7 7 5 6 6 5 7 5 6 6 6 7 6 7
Screen (C)                                                        
Dry Bulb 7.4 7.8 0.9 -1.0 0.0 -1.9 -3.8 -1.0 -1.0 3.1 5.9 7.1 6.8 6.6 6.9 7.6 5.7 5.5 7.2 9.1 8.0 8.7 8.1 8.1 6.0 7.1 6.9 8.0
Wet Bulb 7.1 7.2 0.5 -1.2 -0.6 -2.1 -3.9 -1.3 -1.1 2.7 5.5 6.6 5.7 5.8 6.4 6.0 5.7 5.3 7.0 8.9 7.8 8.2 7.8 8.0 5.8 5.9 6.6 6.5
Max 11.2 11.6 10.0 9.6 4.4 4.4 4.1 0.2 3.0 8.4 10.5 9.0 8.3 9.4 11.0 9.0 8.7 7.5 11.1 11.2 12.1 10.0 11.5 10.5 9.6 9.8 11.6 11.5
Min 1.9 5.2 -1.4 -2.8 -2.6 -4.0 -5.8 -4.1 -1.9 -1.1 3.0 5.6 5.2 6.0 1.0 6.3 3.4 3.5 4.3 7.0 6.9 5.6 6.9 7.0 4.6 5.9 1.9 6.5
Ground Observations (C)                                                        
Grass Min -3.5 -1.0 -5.3 -6.9 -6.5 -7.0 -10.2 -7.7 -3.0 -2.4 0.7 1.4 0.0 2.3 -4.3 2.7 -1.6 -1.9 0.4 6.0 2.4 0.2 4.0 4.6 2.1 1.9 -2.6 2.5
Conc. Min -0.1 2.0 -3.0 -4.0 -4.3 -5.4 -6.8 -5.6 -2.1 -1.6 1.1 2.8 2.1 3.2 -1.5 3.6 1.0 1.1 1.4 5.5 4.4 3.9 4.0 5.4 3.6 3.8 1.0 4.0
Bare Earth Min 0.4 3.0 -1.5 -2.5 -2.4 -3.0 -3.4 -3.6 -1.3 -0.9 -0.4 3.4 3.0 4.0 -0.4 4.1 2.1 2.3 1.4 4.9 5.3 3.9 2.0 6.1 4.6 4.6 0.9 4.6
Soil/Earth Temperatures (C)                                                        
Surface 4.5 _ 1.9 0.7 0.8 0.5 0.2 0.6 0.6 0.8 4.5 5.4 4.5 6.5 5.0 6.1 5.4 5.4 6.0 7.5 6.4 7.6 7.0 8.1 7.0 6.5 6.6 6.0
5cm 4.8 _ 2.6 1.5 1.2 0.9 0.6 0.5 0.7 0.7 3.8 4.7 4.5 6.5 3.6 5.3 5.7 5.0 5.5 6.4 6.9 6.9 6.9 7.5 6.9 6.4 6.2 6.2
10cm 4.8 _ 3.2 2.1 1.6 1.3 1.0 0.9 0.9 1.0 4.1 4.8 4.6 6.0 3.7 5.4 5.0 5.2 6.0 6.4 7.1 7.2 7.0 7.6 7.2 6.6 5.4 6.8
20cm 5.0 _ 4.8 3.7 3.0 2.5 2.2 2.0 1.8 1.7 3.3 4.6 5.0 6.5 4.5 5.4 5.4 5.6 5.5 6.4 6.6 6.6 6.8 7.6 7.5 7.2 6.1 7.0
30cm 5.0 _ 5.3 4.1 3.5 3.3 2.7 2.2 2.1 2.1 2.6 4.1 5.0 6.5 4.7 5.1 5.4 5.6 5.5 6.2 6.5 6.6 6.8 7.5 7.5 7.1 6.4 6.5
40cm 4.9 _ 5.3 4.2 3.6 3.4 2.7 2.4 2.3 2.1 2.7 4.1 4.5 6.5 4.7 5.2 5.4 5.6 5.3 6.1 6.6 6.7 6.6 7.3 7.4 6.9 6.4 6.5
50cm 5.1 _ 5.8 4.8 4.5 4.1 3.5 3.0 2.7 2.6 3.1 4.2 5.0 5.0 5.1 5.4 5.6 5.8 5.4 6.0 6.7 6.5 6.9 7.3 7.5 7.2 7.0 6.8
100cm 6.1 _ 6.2 6.1 5.8 5.6 5.3 5.2 5.0 4.8 4.7 4.7 4.8 5.0 5.2 5.3 5.5 5.6 5.4 5.8 6.0 6.0 6.1 6.5 6.6 6.6 6.6 7.0
State of the Ground                                                        
Without snow 1 1 4 4 4 4 4 _ _ _ 2 2 2 2 1 1 1 1 1 1 1 1 1 2 2 1 3 2
With snow _ _ _ _ _ _ _ 7 7 4 _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _
Snow depth _ _ _ _ _ _ _ 7 8 5 _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _
State of the Grass 2 2 7 7 7 7 7 9 9 9 3 3 3 3 4 1 4 3 1 3 3 3 3 3 3 1 3 3
State of the Concrete 1 1 0 0 0 0 0 0 0 2 1 1 2 2 0 0 1 0 1 1 1 1 1 1 1 1 2 2
Pan                                                        
Evaporation (mm)                                                        
Evap. over interval > > > > > > > > > > > 2.76 > > > > > > > > > > > > > > > 2.86
Rainfall (mm)                                                        
Total _ _ _ _ tr _ 3.4 3.7 12.7 12.3 0.9 5.6 3.3 0.1 0.2 0.4 0.1 0.2 1.5 1.3 1.6 1.0 5.9 1.9 1.2 6.3 6.0 0.3
Duration (hrs) _ _ _ _ _ _ 2.2 10.9 14.0 10.3 0.9 3.4 4.0 _ 0.3 0.3 0.2 0.2 3.0 1.8 4.8 1.8 5.5 1.9 1.0 4.2 1.6 0.7
Intensity (mean over 24 hrs, mm/hr) _ _ _ _ _ _ 1.5 0.3 0.9 1.2 1.0 1.6 0.8 _ 0.7 1.3 0.5 1.0 0.5 0.7 0.3 0.6 1.1 1.0 1.2 1.5 3.8 0.4
Run of Wind                                                        
Miles (over 24 hrs) 70.61 69.66 44.41 39.47 53.8 40.27 61.46 74.55 131.11 118.4 185.62 189.6 172.8 163.2 248.41 53.37 73.08 60.3 180.14 131.57 168.2 210.56 170.31 130.78 119.56 160.54 226.31 190.89
Mean (mph) 3.8 3.8 2.4 2.1 2.9 2.2 3.3 4 7.1 6.4 10.1 10.3 9.4 8.8 13.5 2.9 4 3.3 9.8 7.1 9.1 11.4 9.2 7.1 6.5 8.7 12.3 10.3
Gust (mph) <15 20 <15 <15 <15 <15 22 21 25 22 24 44 26 32 33 19 19 <15 19 15 21 28 26 24 30 40 37 42
Sunshine (hrs) 0.3 5.0 7.0 5.5 0.5 2.5 6.2 0.0 0.0 0.0 5.3 0.1 2.3 3.5 2.9 0.3 1.1 2.2 0.1 0.5 5.0 0.0 0.4 0.9 1.8 6.0 0.2 4.6
Humidity Statistics                                                        
Saturated                                                        
VP(Twb) 1.009 1.016 0.634 0.56 0.585 0.524 0.458 0.556 0.564 0.742 0.904 0.975 0.916 0.923 0.962 0.936 0.916 0.891 1.002 1.141 1.059 1.088 1.059 1.073 0.923 0.929 0.975 0.968
VP 0.989 0.975 0.607 0.547 0.545 0.511 0.451 0.536 0.557 0.715 0.877 0.941 0.842 0.869 0.928 0.828 0.916 0.877 0.988 1.127 1.045 1.054 1.039 1.066 0.909 0.848 0.955 0.866
Saturated                                                        
VP 1.03 1.059 0.652 0.568 0.611 0.532 0.461 0.568 0.568 0.763 0.929 1.009 0.989 0.975 0.995 1.044 0.916 0.904 1.016 1.156 1.073 1.126 1.081 1.081 0.936 1.009 0.995 1.073
RH % 96 92.1 93.1 96.3 89.2 96.1 97.8 94.4 98.1 93.7 94.4 93.3 85.1 89.1 93.3 79.3 100 97 97.2 97.5 97.4 93.6 96.1 98.6 97.1 84 96 80.7
                                                         
Dew Point (C) 6.8 6.6 -0.1 -1.5 -1.6 -2.4 -4.1 -1.8 -1.3 2.2 5.1 6.1 4.5 4.9 5.9 4.2 5.7 5.1 6.8 8.7 7.6 7.7 7.5 7.9 5.6 4.6 6.3 4.9
Pressure (mb) 1028.9 1030.4 1040.8 1033.8 1019.0 1010.0 1004.0 987.0 1003.7 996.8 986.7 976.0 1006.0 1000.7 1015.6 1010.3 1011.3 1019.9 1010.7 1005.2 1005.0 1001.5 998.2 991.4 992.8 1012.9 1007.1 990.9
Days with                                                        
thunder _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _
hail<5mm _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _
hail>/=5mm _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _
snow _ _ _ _ _ _ _ 1 1 _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _
fog _ _ _ _ _ _ _ _ 1 _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _
gales _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _

This page was created by Pitsford Hall weather station on 03 March 2007.