Climatological Observations - April 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 29th 30th
Time of Observations (GMT) 8.00 9.00 9.00 9.00 9.00 9.00 9.00 9.00 9.00 9.00 9.00 9.00 8.00 9.00 7.00 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
Total Cloud (oktas) 2 0 8 8 2 5 0 3 2 8 0 8 8 7 1 7 2 4 1 2 8 4 8 8 8 1 8 1 8 1
Wind                                                            
Direction n nne nne nnw wnw nnw nne sse wnw wsw wnw ene nne ne calm n nne nw nnw se sse s sse sse s nne nne nne ne nne
Speed (knots) 17 14 9 12 1 9 4 1 8 2 2 6 2 7 0 2 3 3 2 3 7 8 6 9 8 8 8 14 12 16
Weather 10 5 54 2 10 2 5 5 2 2 0 5 10 42 42 5 1 3 0 2 2 2 20 2 2 0 3 2 2 2
Visibility 6 5 7 7 6 7 7 7 7 7 8 6 4 4 4 6 7 7 7 7 7 7 5 6 7 8 6 8 7 7
Screen (C)                                                            
Dry Bulb 7.0 9.7 7.8 6.5 9.7 10.5 11.8 11.9 11.9 12.5 14.6 10.6 7.0 9.7 5.6 16.0 12.9 12.6 13.9 11.4 10.9 11.5 13.6 14.9 16.7 14.6 11.2 14.0 8.8 14.0
Wet Bulb 6.0 8.3 6.9 5.0 8.1 8.4 8.9 9.0 9.0 10.7 11.0 9.0 7.0 9.6 5.4 13.9 10.0 9.0 9.9 9.1 8.4 9.0 12.2 13.8 13.0 11.1 10.1 10.2 7.8 10.6
Max 14.4 15.0 8.5 10.3 18.7 15.7 15.7 18.1 17.2 16.0 18.3 15.5 13.7 20.3 23.4 19.9 16.9 15.8 19.0 16.9 19.4 19.2 16.1 19.6 19.2 17.0 16.5 18.8 18.0 19.0
Min 4.5 4.8 4.8 2.3 2.5 5.1 3.2 4.3 5.1 6.7 5.1 5.2 6.0 6.5 5.0 5.6 8.9 4.7 4.8 5.6 5.3 6.5 9.5 12.6 13.1 7.3 7.4 6.6 7.1 7.0
Ground Observations (C)                                                            
Grass Min 0.9 1.7 0.8 -3.0 -2.7 -0.3 -0.9 -1.0 0.0 1.4 0.1 1.0 2.1 5.1 1.9 4.8 7.0 0.0 0.3 2.1 0.6 2.3 4.5 11.2 9.8 3.1 7.1 3.2 5.4 4.0
Conc. Min 2.3 2.6 3.5 _ 0.4 2.8 2.5 2.6 3.5 4.9 4.1 4.3 5.4 6.6 5.1 6.1 9.5 4.9 3.8 5.5 4.6 5.5 7.5 11.4 11.4 7.0 8.1 5.1 7.1 5.5
Bare Earth Min 2.6 3.3 3.4 1.0 1.1 3.3 3.0 3.0 3.9 5.0 4.5 4.4 5.2 7.0 5.8 6.6 9.3 4.1 4.4 4.7 4.6 5.5 7.5 12.2 12.0 7.0 7.2 5.4 7.0 6.0
Soil/Earth Temperatures (C)                                                            
Surface 6.2 7.6 7.9 7.0 6.4 8.4 8.3 8.4 9.1 11.6 10.6 10.8 9.8 11.6 9.2 14.6 12.7 11.4 11.6 11.7 11.8 11.4 13.6 15.1 15.6 14.6 13.0 13.6 12.2 14.5
5cm 6.3 6.9 7.4 5.9 5.5 7.6 7.6 7.5 8.4 9.7 9.4 9.8 9.8 10.6 10.5 13.0 12.7 11.2 10.6 11.4 11.2 11.3 12.2 13.2 13.8 13.2 12.2 11.8 12.3 12.2
10cm 6.5 7.0 7.6 6.2 5.7 7.8 7.8 7.7 8.6 9.8 9.6 9.8 10.3 10.8 10.1 13.3 13.3 11.7 11.1 11.8 11.5 11.6 12.6 13.4 14.3 13.5 12.6 12.2 12.8 12.8
20cm 7.6 7.6 8.0 6.9 6.6 8.3 8.6 8.6 9.4 10.0 10.2 10.5 10.9 11.0 12.0 13.2 13.6 12.6 12.1 12.5 12.2 12.5 12.4 12.8 13.8 13.8 12.9 12.7 13.6 12.5
30cm 8.3 8.2 8.3 7.6 7.4 8.5 8.9 9.1 9.6 10.0 10.4 10.7 10.9 11.1 11.8 12.9 13.5 12.7 12.1 12.4 12.5 12.7 12.4 12.9 14.1 13.9 13.3 13.1 13.4 13.0
40cm 7.8 8.1 8.2 7.6 7.4 8.4 8.7 9.0 9.4 9.8 10.2 10.6 10.6 10.8 11.6 12.4 12.9 12.4 12.3 12.1 12.2 12.5 12.4 12.5 13.4 12.4 13.0 12.8 13.0 12.7
50cm 8.4 8.4 8.5 8.1 7.9 8.5 8.8 8.0 9.5 10.0 10.3 10.6 10.6 10.8 11.4 12.3 12.8 12.4 12.2 12.2 12.4 12.7 12.4 12.2 13.4 12.9 13.4 13.3 13.4 13.5
100cm 7.5 7.7 7.6 7.7 7.7 7.7 7.9 8.0 8.2 8.3 8.6 8.8 8.9 9.2 9.4 9.7 10.0 10.3 10.6 10.4 10.6 10.6 10.8 11.9 11.0 11.2 11.4 11.5 11.5 11.8
State of the Ground                                                            
Without snow 1 1 1 1 1 0 0 0 0 0 9 9 9 9 9 9 9 9 9 9 9 9 9 1 9 9 1 9 9 9
With snow _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _
Snow depth _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _
State of the Grass 1 1 3 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 0 1 0 3 0 0 3 0 0 1
State of the Concrete 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 1 0 0 0
Pan                                                            
Evaporation (mm)                                                            
Evap. over interval > > > > 6.97 > 5.37 > > > > > > 17.81 > > > > > 12.06 > > > > > > > 31.51 > 12.41
Rainfall (mm)                                                            
Total _ tr tr _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ tr 0.4 _ _ 1.2 _ _ _ _
Duration (hrs) _ _ 0.5 _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ 0.3 _ _ 2.2 _ _ _ _
Intensity (mean over 24 hrs, mm/hr) _ _ 0.0 _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ 1.3 _ _ 0.5 _ _ _ _
Run of Wind                                                            
Miles (over 24 hrs) 182.36 142.13 130.31 67.75 71.56 53.19 45.2 82.75 99.46 56.82 47.79 79.82 55.35 45.27 70.48 71.75 114.72 85.55 122.98 70.22 137.31 133.99 156.28 142.15 107.84 138.31 145.63 147.25 145.25 190.84
Mean (mph) 9.9 7.7 7.1 3.7 3.9 2.9 2.4 4.5 5.4 3.1 2.6 4.3 3 2.5 3.8 3.9 6.2 4.6 6.7 3.8 7.4 7.3 8.5 7.7 5.8 7.5 7.9 8 7.9 10.3
Gust (mph) 34 29 29 18 15 18 14 17 19 16 <15 16 <15 <15 <15 <15 22 23 21 15 17 21 18 31 27 31 25 26 23 39
Sunshine (hrs) 7.4 8.7 0.4 1.6 9.4 9.4 9.3 10.0 8.8 1.3 10.9 6.1 2.0 8.8 7.4 4.5 9.3 10.8 11.7 9.8 7.5 5.4 0.0 3.9 6.7 7.5 5.4 11.9 5.6 11.8
Humidity Statistics                                                            
Saturated                                                            
VP(Twb) 0.936 1.095 0.995 0.873 1.081 1.103 1.141 1.149 1.149 1.287 1.313 1.149 1.002 1.196 0.897 1.589 1.229 1.149 1.22 1.156 1.103 1.149 1.422 1.579 1.499 1.322 1.237 1.245 1.059 1.279
VP 0.868 1 0.934 0.772 0.972 0.96 0.944 0.952 0.952 1.164 1.068 1.04 1.002 1.189 0.883 1.445 1.032 0.904 0.948 1 0.933 0.979 1.326 1.504 1.246 1.084 1.162 0.986 0.991 1.047
Saturated                                                            
VP 1.002 1.204 1.059 0.968 1.204 1.27 1.385 1.394 1.394 1.45 1.663 1.279 1.002 1.204 0.91 1.819 1.489 1.46 1.589 1.349 1.305 1.358 1.558 1.695 1.902 1.663 1.331 1.599 1.133 1.599
RH % 86.6 83.1 88.2 79.8 80.7 75.6 68.2 68.3 68.3 80.3 64.2 81.3 100 98.8 97 79.4 69.3 61.9 59.7 74.1 71.5 72.1 85.1 88.7 65.5 65.2 87.3 61.7 87.5 65.5
                                                             
Dew Point (C) 4.9 7 6 3.3 6.6 6.4 6.1 6.3 6.3 9.2 7.9 7.5 7 9.5 5.2 12.4 7.4 5.5 6.2 7 6 6.7 11.1 13.1 10.2 8.1 9.2 6.8 6.8 7.6
Pressure (mb) 1030.4 1035.5 1026.7 1026.8 1024.7 1025.5 1028.0 1026.3 1020.0 1022.9 1025.7 1023.9 1022.7 1024.8 1023.6 1025.5 1026.6 1026.4 1019.7 1023.3 1021.6 1018.5 1019.0 1017.0 1012.0 1022.0 1025.0 1026.1 1023.0 1017.1
Days with                                                            
thunder _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _
hail<5mm _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _
hail>/=5mm _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _
snow _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _
fog _ _ _ _ _ _ _ _ _ _ _ _ _ 1 _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _
gales _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _

This page was created by Pitsford Hall weather station on 01 May 2007.