Climatological Observations - February 2009

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 9 8 9 9 9 9 9 8 8 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9
Total Cloud (oktas) 8 8 1 0 8 8 5 8 8 8 0 5 6 1 8 7 8 9 7 9 7 8 8 8 8 8 7 8
Wind                                                        
Direction e nne se se ne nne nnw ssw ssw nnw wsw nnw nnw calm nw nw nnw calm w nw wnw nw nnw nw ssw w w ssw
Speed (knots) 23 8 2 3 10 12 6 2 3 18 3 2 2 0 3 3 12 0 2 6 9 12 18 3 3 15 3 7
Weather 2 71 10 10 26 73 1 2 10 60 0 3 1 10 2 2 10 45 2 43 2 3 3 10 2 2 3 2
Visibility 7 6 5 5 6 4 6 7 5 8 8 8 9 7 6 7 6 3 6 3 7 8 8 6 7 7 7 7
Screen (C)                                                        
Dry Bulb 0.4 -1.5 -4.6 -1.7 0.4 0.4 -0.3 -2.5 0.3 1.9 0 -1.5 2.2 0.7 4.2 5 7.6 7 6 2.5 5.4 8.9 8 7.6 7.3 5.1 8.2 7.2
Wet Bulb 0.1 -2 -4.7 -1.9 0.1 0.3 -0.5 -2.6 0 1.6 -0.1 -2.1 1.9 -0.1 3.6 4.5 7 7 5.6 2.5 4.5 7.2 6.8 7.2 6.9 4.2 6.9 6.1
Max 2.7 0.6 2.5 3.9 1.5 0.6 3 2.5 3.4 4.1 5 3.4 5.6 4.4 7 10.6 10.6 8 9.9 7.5 10.6 9.9 10.9 10.3 11 8.8 12.5 10
Min 0.1 -3 -5.4 -5.1 -2.3 0 -4.7 -3.4 -2.9 0 -0.8 -4 -1.5 -3.7 0.1 4 4.6 6.5 5 2 2.1 4.8 5.6 6.9 6.4 4.6 4.8 5.6
Black Bulb (Globe, C) 0.6 0.2 -0.3 0 0.3 0.2 0.4 -0.4 0.1 0.9 0.6 0.9 3.1 4.9 5 6.1 8 7.5 7.4 3.4 5.7 8.5 8.4 7.9 7.7 5 8.4 8.8
Grass & Concrete                                                        
State of Grass 0 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 3 3 2 1 1 1 1 1 1 1 1
State of Concrete 0 3 3 1 3 1 3 0 3 2 3 3 3 0 0 0 0 2 0 0 0 0 0 0 0 0 0 0
Concrete Min (C) -0.6 -5 -4.6 -6.7 -4.5 -1 -2.4 -4.9 -3.4 -1.5 -3.1 -5 -5.1 -5.2 -1.1 3.1 3.2 7.5 4.7 2.6 1.7 4.1 4.9 7.2 7 4.2 4.8 4.2
Evaporation                                                        
Piche (ml) 1.5 > > 4.3 1.3 > 2.5 0.4 0.1 > 0.6 1 0.1 1.9 0.7 2.6 0.7 0.1 1.2 1.5 2.5 2.6 1.9 0.7 4.5 0.8 2 1.7
Pan (over interval, mm) > > > > > > > > > > > > > > 3.37 > > > > > > > > > > > > 10.01
Rainfall                                                        
Total (mm) tr 4.9 tr 9.8 2.1 4 0.1 5.3 20.9 tr tr 4.9 _ 0.1 0.1 tr 0.8 3 0.9 tr _ tr _ _ tr _ _ 0.3
Duration (hrs) 0.1 9.3 0.1 _ 5.6 3.1 _ 4.6 18.3 _ _ 6.9 _ _ 0.1 _ 2.2 4.6 1.8 _ _ _ _ _ _ _ _ 1.8
Intensity (mean over 24 hrs, mm/hr) 0.0 0.5 0.0 _ 0.4 1.3 _ 1.2 1.1 _ _ 0.7 _ _ 1.0 _ 0.4 0.7 0.5 _ _ _ _ _ _ _ _ 0.2
Run of Wind                                                        
Miles (over 24 hrs) 154.36 134.32 72.75 83.08 85.07 99.65 101.53 98.33 166.66 111.12 100.65 112.95 57.73 63.8 78.46 137.82 75.3 29.41 72.27 74.04 140.87 182.43 166.73 87.99 177.53 170.43 145.77 56.29
Mean (mph) 8.4 7.3 3.9 4.5 4.6 5.4 5.5 5.3 9 6 5.5 6.1 3.1 3.5 4.2 7.5 4.1 1.6 3.9 4 7.6 9.9 9 4.8 9.6 9.2 7.9 3
Gust (mph) 30 23 18 19 23 20 19 15 34 26 23 22 18 <15 15 23 20 15 16 15 23 30 25 <15 20 22 18 <15
Sunshine (hrs) 0.9 0 2.5 3.4 0 0 4.5 1.6 0 4.1 1.3 2 6.1 2.2 0 2.5 0 0 2.9 1.1 6.1 1.4 1.4 0 1.9 0 1 0
Humidity Statistics                                                        
Saturated                                                        
VP(Twb) 0.615 0.528 0.431 0.532 0.615 0.624 0.589 0.505 0.611 0.686 0.607 0.524 0.701 0.607 0.791 0.843 1.002 1.002 0.91 0.732 0.843 1.016 0.989 1.016 0.995 0.825 0.995 0.942
VP 0.595 0.494 0.424 0.519 0.595 0.617 0.576 0.498 0.591 0.666 0.6 0.484 0.681 0.553 0.75 0.809 0.961 1.002 0.883 0.732 0.782 0.901 0.908 0.989 0.968 0.764 0.907 0.867
Saturated                                                        
VP 0.629 0.547 0.434 0.539 0.629 0.629 0.598 0.508 0.624 0.701 0.611 0.547 0.716 0.643 0.825 0.873 1.044 1.002 0.936 0.732 0.897 1.141 1.073 1.044 1.023 0.879 1.088 1.016
Rel. Humidity 94.6 90.3 97.7 96.3 94.6 98.1 96.3 98 94.7 95 98.2 88.5 95.1 86 90.9 92.7 92 100 94.3 100 87.2 79 84.6 94.7 94.6 86.9 83.4 85.3
                                                         
Dew Point (C) -0.4 -2.9 -4.9 -2.2 -0.4 0.1 -0.8 -2.8 -0.5 1.2 -0.2 -3.2 1.5 -1.4 2.8 3.9 6.4 7 5.2 2.5 3.4 5.5 5.6 6.8 6.5 3.1 5.6 4.9
Pressure (mb) 1015 1003.1 996.2 996.3 989.3 991.7 991.8 1003.9 1001 996.3 1016.9 1021 1019 1030.3 1027.7 1026.1 1026.2 1027.6 1028.1 1032 1032.1 1027.1 1024.8 1027.5 1028 1026.6 1019.6 1015.2
Days with                                                        
thunder _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _
hail<5mm _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _
hail>/=5mm _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _
snow 1 1 1 _ 1 1 _ 1 1 1 1 1 _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _
fog _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ 1 _ 1 _ _ _ _ _ _ _ _
gales _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _
fog _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ 1 _ 1 _ _ _ _ _ _ _ _
gales _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _

This page was created by Pitsford Hall weather station on 02 March 2009.