Climatological Observations - April 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 29th 30th
Time of Observations (GMT) 9.00 9.00 9.00 9.00 8.00 9.00 9.00 9.00 9.00 8.00 9.00 9.00 9.00 9.00 9.00 9.00 9.00 9.00 8.00 9.00 9.00 9.00 9.00 9.00 9.00 8.00 9.00 9.00 9.00 9.00
Total Cloud (oktas) 0 9 9 5 2 8 7 3 8 7 8 8 4 6 8 8 8 7 8 2 2 1 1 4 8 1 8 7 0 8
Wind                                                            
Direction e ene calm sw ssw se sw wnw s sse nw nne wnw sse ene ne ene nnw nne nne wsw ese ssw sse sse se ssw nnw sse s
Speed (knots) 6 9 0 9 1 6 7 11 8 7 3 11 2 5 14 7 14 9 14 4 6 4 6 9 8 6 10 6 3 2
Weather 0 45 45 1 2 2 3 1 50 2 61 25 2 3 2 61 10 1 2 1 0 0 0 1 61 2 62 2 0 2
Visibility 7 3 3 6 7 5 7 8 7 7 6 5 8 7 5 4 5 7 7 9 8 7 8 7 8 7 6 7 8 7
Screen (C)                                                            
Dry Bulb 10.4 6.4 4.2 9.5 6.3 9.2 9.3 9.3 11.5 11.9 7.4 8.1 10.8 13.2 9.2 9.6 8.4 8.4 6.5 9.6 14.0 13.4 13.5 15.5 10.3 10.7 9.0 9.5 12.5 14.0
Wet Bulb 8.6 6.2 4.2 8.5 5.1 7.7 7.9 6.6 11.1 10.0 7.1 7.9 9.6 11.6 8.8 9.2 8.0 6.6 5.3 8.0 10.1 9.9 10.1 10.4 8.3 8.4 8.6 7.6 9.0 12.0
Max 16.1 11.6 13.9 14.6 13.5 16.4 13.8 14.6 13.9 12.5 10.9 10.5 16.0 17.6 20.0 10.4 14.0 14.0 15.3 18.4 19.1 16.9 18.0 18.6 15.1 15.5 11.0 14.4 15.5 16.9
Min 6.6 5.0 3.6 4.1 2.0 4.4 6.1 7.1 6.1 9.1 6.4 7.0 7.6 3.6 7.2 8.4 7.2 4.8 5.2 3.0 3.6 4.7 7.0 7.2 7.1 3.6 5.1 5.4 2.4 6.3
Black Bulb (Globe, C) 15.8 7.3 6 11.5 9.1 13 12.1 12.4 11.6 13.9 7.8 8.4 _ _ _ _ _ 13.9 8.9 _ 18 17 19.8 23 11.2 20.3 8.5 15.4 21.2 _
Grass & Concrete                                                            
State of Grass 1 2 2 0 1 0 1 3 3 0 3 3 _ _ 3 3 3 1 0 0 0 1 0 0 3 1 3 1 1 0
State of Concrete 0 0 0 0 0 0 0 0 1 0 2 2 0 0 1 2 1 0 0 0 0 0 0 0 1 0 2 0 0 0
Concrete Min (C) 5.6 4.0 4.5 5.7 1.6 4.1 5.9 6.5 6.1 8.4 7.1 7.0 8.1 3.5 6.4 7.6 6.4 4.0 6.1 4.5 5.0 4.9 7.1 7.8 7.1 3.3 4.9 3.4 11.6 7.6
Evaporation                                                            
Piche (ml) 2.3 0.8 1.8 4 3 4.6 5.6 4.2 2 0.9 0.5 > > > > > 8.6 2.4 1.7 27 4.7 3.2 5.7 4.8 4.7 3.9 5.3 1.9 5.9 1.8
Pan (over interval, mm) > > > > > > > > > > 19.24 > > > > > > > > > > > > 27.94 > > > > > 16.18
Rainfall                                                            
Total (mm) _ _ _ _ _ tr 0.4 1.3 0.2 3.7 0.7 0.6 _ 1.0 1.2 3.8 _ _ tr(fe) _ _ _ _ tr 0.1 1.7 4.9 1.1 _ _
Duration (hrs) _ _ _ _ _ 0.1 0.2 1.0 0.3 8.6 2.2 1.9 _ 2.2 3.3 4.2 _ _ _ _ _ _ _ _ 0.5 1.2 2.4 0.2 _ _
Intensity (mean over 24 hrs, mm/hr) _ _ _ _ _ 0.0 2.0 1.3 0.7 0.4 0.3 0.3 _ 0.5 0.4 0.9 _ _ _ _ _ _ _ _ 0.2 1.4 2.0 5.5 _ _
Run of Wind                                                            
Miles (over 24 hrs) 114.47 77.19 82.54 84.93 46.82 168.62 247.14 136.8 147.56 72.18 41.14 55.52 71.08 188.43 248 161.41 229.54 133.06 33.29 60.96 84.82 47.53 97.93 89.79 98.44 101.97 50.95 38.01 127.58 164.08
Mean (mph) 6.2 4.2 4.5 4.6 2.5 9.1 13.4 7.4 8 3.9 2.2 3 3.9 10.2 13.4 8.7 12.4 7.2 1.8 3.3 4.6 2.6 5.3 4.9 5.3 5.5 2.8 2.1 6.9 8.9
Gust (mph) 21 17 16 22 <15 21 33 25 22 16 <15 15 15 26 30 24 29 25 19 <15 20 15 20 23 20 19 21 15 17 18
Sunshine (hrs) 7.9 3.2 4.6 7.1 7.1 3.9 8.7 9.2 0.3 0.2 0.0 0.0 3.0 3.8 3.1 0.5 0.0 8.7 8.4 10.2 9.2 9.4 5.5 9.9 8.5 8.2 1.1 7.6 9.5 2.9
Humidity Statistics                                                            
Saturated                                                            
VP(Twb) 1.118 0.949 0.825 1.11 0.879 1.052 1.066 0.975 1.322 1.229 1.009 1.066 1.196 1.367 1.133 1.164 1.073 0.975 0.891 1.073 1.237 1.22 1.237 1.262 1.095 1.103 1.118 1.044 1.149 1.403
VP 0.996 0.935 0.825 1.042 0.798 0.95 0.971 0.792 1.295 1.1 0.989 1.052 1.114 1.258 1.106 1.137 1.046 0.853 0.81 0.964 0.972 0.982 1.006 0.915 0.959 0.947 1.091 0.915 0.911 1.267
Saturated                                                            
VP 1.262 0.962 0.825 1.188 0.955 1.164 1.172 1.172 1.358 1.394 1.03 1.081 1.296 1.518 1.164 1.196 1.103 1.103 0.968 1.196 1.599 1.538 1.548 1.762 1.253 1.287 1.149 1.188 1.45 1.599
Rel. Humidity 78.9 97.2 100 87.7 83.6 81.6 82.8 67.6 95.4 78.9 96 97.3 86 82.9 95 95.1 94.8 77.3 83.7 80.6 60.8 63.8 65 51.9 76.5 73.6 95 77 62.8 79.2
                                                             
Dew Point (C) 6.9 6 4.2 7.6 3.7 6.2 6.5 3.6 10.8 8.4 6.8 7.7 8.5 10.4 8.4 8.9 7.6 4.7 3.9 6.4 6.6 6.7 7.1 5.7 6.4 6.2 8.2 5.7 5.6 10.5
Pressure (mb) 1024.2 1023.1 1018.8 1016.4 1024.8 1012.2 1006.5 1003.5 1008.6 1002.4 1008.3 1015.5 1012.6 1010.1 1008.4 1008.5 1010.7 1019.1 1025.8 1029.2 1026.9 1027.8 1023.0 1016.0 1004.6 1009.5 994.1 1001.2 1009.1 1014.4
Days with                                                            
thunder _ _ _ _ _ _ _ _ _ _ _ _ _ _ 1 _ _ _ _ _ _ _ _ _ _ _ _ 1 _ _
hail<5mm _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _
hail>/=5mm _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _
snow _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _
fog _ 1 1 _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _
gales _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _

This page was created by Pitsford Hall weather station on 03 May 2009.