Climatological Observations - April 2008

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 9.00 8.00 9.00 9.00 8.00 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 9.00 9.00 8.00 9.00 9.00 9.00
Total Cloud (oktas) 4 8 8 8 5 4 5 1 0 1 4 5 6 2 1 8 7 8 8 8 8 8 8 7 7 7 8 5 7 7
Wind                                                            
Direction sw wsw nw wsw nnw nnw nnw sw wsw ssw s sw ssw nw w ese e e ene ene ne ne se s sw ssw s s se e
Speed (knots) 16 8 3 3 23 8 11 3 1 6 12 9 8 15 2 2 12 14 14 9 7 2 4 12 1 15 9 16 4 4
Weather 3 2 2 2 2 1 3 3 2 2 3 3 80 3 1 2 2 1 2 10 11 1 63 1 1 2 5 3 2 2
Visibility 7 7 7 7 7 8 7 7 7 7 7 8 7 7 7 6 7 5 7 4 5 5 4 6 6 7 7 8 7 7
Screen (C)                                                            
Dry Bulb 11.6 9.6 11.2 11.6 6.6 0.0 3.5 5.2 4.2 7.1 6.9 6.9 5.6 8.6 8.0 5.2 6.6 8.7 7.8 7.2 7.4 12.1 9.6 9.9 11.5 13.7 14.5 11.6 9.6 9.9
Wet Bulb 8.4 7.2 9.2 10.4 5.0 -0.5 2.2 3.6 3.2 5.0 5.1 5.2 4.9 6.7 5.6 4.3 4.3 6.6 5.9 7.0 6.8 9.9 9.4 8.7 9.3 10.5 11.5 8.2 8.0 8.4
Max 13.6 12.4 14.4 16.0 8.7 6.1 8.2 10.4 10.9 11.7 11.0 11.5 10.6 10.6 12.2 10.5 11.3 10.5 8.8 9.2 13.5 18.0 16.5 14.8 15.3 19.5 18.5 15.0 12.5 11.5
Min 5.6 6.0 8.4 7.6 3.5 -0.9 -0.4 -1.1 -0.1 1.1 2.9 2.6 2.0 1.5 0.0 2.0 1.9 2.6 5.5 6.1 6.0 5.2 6.2 6.2 6.9 6.8 10.8 5.9 3.5 4.8
Black Bulb (Globe, C) _ _ _ _ 10.4 2.1 8.9 _ 10.1 12.9 13.1 12.4 9.6 16.1 21.4 9.4 12 12.6 10.1 7.6 12.6 19.6 10.3 11.5 15.1 16.9 21.6 20.1 18.3 15.7
Grass & Concrete                                                            
State of Grass _ _ _ _ 0 9 1 4 4 1 0 3 1 1 1 1 0 0 0 3 1 1 3 1 1 0 0 0 0 2
State of Concrete 0 0 0 0 0 1 0 0 0 0 0 2 1 0 1 0 0 0 0 1 0 0 1 1 0 0 0 0 0 0
Concrete Min (C) 3.8 5.2 7.6 6.4 2.2 -1.3 -1.0 -3.4 -2.7 -0.8 0.7 0.6 0.0 -1.0 -1.4 0.6 0.5 1.0 4.2 5.1 4.5 3.4 4.8 4.2 5.6 5.5 10.2 4.2 1.7 3.9
Evaporation                                                            
Piche (ml) > > > 13.2 1.2 3 > 4.3 2.5 3.5 3.4 2.6 1.1 2.6 1.6 1.6 2.4 2.7 1.3 0.4 2 1.9 3.3 2.7 4 6.4 3.8 2.9 1.2 1.2
Pan (over interval, mm) > > > > > 21.38 > > > > > > > > > > > > > > > > > > 30.99 > > > > 10.91
Rainfall                                                            
Total (mm) 0.2 _ _ _ 1.2 0.1 0.1 tr _ _ 1.7 0.2 2.7 0.1 1.2 0.1 _ _ 2.9 0.5 tr 2.7 0.7 1.2 tr _ _ 0.4 12.1 1.5
Duration (hrs) 0.2 _ _ _ 4.4 2.1 0.1 _ _ _ 1.8 0.3 2.4 0.1 1.0 0.0 _ _ 6.2 0.6 _ 1.2 2.5 0.1 _ _ _ 0.3 4.1 0.4
Intensity (mean over 24 hrs, mm/hr) 1.0 _ _ _ 0.3 0.0 1.0 _ _ _ 0.9 0.7 1.1 1.0 1.2 0.0 _ _ 0.5 0.8 _ 2.3 0.3 12.0 _ _ _ 1.3 3.0 3.8
Run of Wind                                                            
Miles (over 24 hrs) 248.71 138.77 76.99 131.5 131.56 172.15 104.16 67.17 69.62 153.25 198.83 123.26 90.78 118.85 63.32 112.12 197.11 238.74 163.58 148.02 133.02 98.62 191.32 106.41 177.43 150.13 166.06 116.52 82.29 140.56
Mean (mph) 13.5 7.5 4.2 7.1 7.1 9.3 5.6 3.6 3.8 8.3 10.8 6.7 4.9 6.4 3.4 6.1 10.7 12.9 8.9 8 7.2 5.3 10.4 5.8 9.6 8.1 9 6.3 4.5 7.6
Gust (mph) 40 18 15 22 38 27 23 17 18 20 35 25 22 33 29 25 33 37 31 24 29 16 23 30 23 23 23 24 27 22
Sunshine (hrs) 6.3 0.0 2.3 1.8 2.8 8.9 6.3 7.2 8.8 5.8 9.8 9.3 2.4 7.7 6.1 2.5 10.2 2.7 0.0 0.0 3.7 6.6 7.1 6.5 1.6 7.9 4.2 9.5 4.0 1.8
Humidity Statistics                                                            
Saturated                                                            
VP(Twb) 1.103 1.016 1.164 1.262 0.873 0.589 0.716 0.791 0.769 0.873 0.879 0.885 0.867 0.982 0.91 0.831 0.831 0.975 0.929 1.002 0.989 1.22 1.18 1.126 1.172 1.27 1.358 1.088 1.073 1.103
VP 0.886 0.853 1.028 1.18 0.765 0.555 0.628 0.683 0.701 0.731 0.757 0.77 0.82 0.853 0.748 0.77 0.676 0.833 0.8 0.988 0.948 1.07 1.166 1.044 1.022 1.052 1.154 0.857 0.964 1.001
Saturated                                                            
VP 1.367 1.196 1.331 1.367 0.975 0.611 0.785 0.885 0.825 1.009 0.995 0.995 0.91 1.118 1.073 0.885 0.975 1.126 1.059 1.016 1.03 1.413 1.196 1.22 1.358 1.569 1.652 1.367 1.196 1.22
Rel. Humidity 64.8 71.3 77.2 86.3 78.5 90.8 80 77.2 85 72.4 76.1 77.4 90.1 76.3 69.7 87 69.3 74 75.5 97.2 92 75.7 97.5 85.6 75.3 67 69.9 62.7 80.6 82
                                                             
Dew Point (C) 5.2 4.7 7.4 9.4 3.1 -1.3 0.4 1.5 1.9 2.5 3 3.2 4.1 4.7 2.8 3.2 1.4 4.3 3.8 6.8 6.2 8 9.2 7.6 7.3 7.7 9.1 4.7 6.4 7
Pressure (mb) 1012.8 1022.7 1029.2 1026.6 1014.1 1007.1 1000.6 1004.0 1000.0 998.7 994.8 1001.0 1007.5 1016.8 1024.0 1022.4 1012.0 1000.9 999.6 1004.0 1006.3 1011.2 1015.2 1017.0 1007.2 1023.6 1013.9 1004.0 998.1 988.4
Days with                                                            
thunder _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ 1 _ _ _
hail<5mm _ _ _ _ 1 _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _
hail>/=5mm _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _
snow _ _ _ _ _ 1 1 _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _
fog _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ 1 _ _ _ _ _ _ _
gales _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _

* Readings substituted with AWS readings owing to staff absence.

This page was created by Pitsford Hall weather station on 03 May 2008.