Climatological Observations - July 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 31st
Time of Observations (GMT) 9.00 9.00 9.00 9.00 8.00 9.00 9.00 9.00 7.00 7.00 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 9.00 9.00 9.00 9.00 9.00 9.00
Total Cloud (oktas) 6 1 8 1 7 5 8 7 1 1 8 6 3 4 8 8 8 7 8 6 8 6 8 8 8 8 8 8 8 4 3
Wind                                                              
Direction sse e sw se ssw ssw s w nw nw calm wnw s ssw s s nw w ssw sw se ssw s wsw wsw sse ssw sse sse sw se
Speed (knots) 0 7 13 10 7 10 2 3 10 12 0 14 7 3 16 10 3 12 6 10 8 10 9 8 5 3 7 14 7 3 7
Weather 3 0 3 2 1 3 21 1 2 2 61 3 3 3 3 3 2 3 50 1 2 1 2 3 3 3 2 2 60 3 2
Visibility 6 6 4 8 7 8 5 6 8 8 6 8 8 7 7 7 7 8 7 8 7 7 8 7 8 7 7 8 7 8 8
Screen (C)                                                              
Dry Bulb 24.3 24.5 19.0 19.7 17.3 18.9 15.0 14.4 12.0 11.9 14.9 17.1 15.7 16.0 16.1 16.2 15.7 14.2 14.9 18.0 14.8 16.8 18.0 16.8 18.0 15.3 13.6 16.1 16.3 14.4 15.1
Wet Bulb 17.8 19.4 18.6 15.6 15.3 12.5 14.2 12.9 10.2 10.0 14.4 14.7 13.8 13.7 13.9 14.0 15.0 12.1 13.4 15.2 14.8 15.6 16.8 16.8 16.8 13.9 13.6 13.0 14.3 12.4 12.2
Max 30.0 27.1 23.5 23.5 23.0 20.6 18.9 18.6 18.0 19.9 22.0 21.9 21.6 21.5 22.0 21.4 18.0 20.0 18.4 19.6 18.8 20.8 22.4 19.2 23.2 19.2 20.8 21.0 16.7 18.0 20.5
Min 17.0 14.5 16.6 12.7 14.0 12.5 10.2 11.8 9.1 8.4 11.6 13.3 12.5 11.9 13.6 11.1 13.6 12.6 11.1 10.4 12.8 12.8 12.0 12.4 11.2 12.4 12.0 10.8 13.5 10.2 9.0
Solar Radiation (W/m^2) 302 591 122 594 247 360 235 347 635 301 113 687 604 412 183 253 151 274 137 615 177 327 639 233 634 84 200 311 211 227 489
Grass & Concrete                                                              
State of Grass 0 0 3 0 0 0 3 3 1 1 3 3 3 0 0 0 3 3 0 0 2 0 0 0 0 1 3 0 3 3 1
State of Concrete 0 0 3 0 0 0 1 0 0 0 2 0 0 0 0 0 0 0 0 0 3 3 0 0 0 0 2 0 2 0 0
Concrete Min (C) 20.0 16.0 18.5 13.4 14.9 12.4 9.2 11.3 8.6 8.3 10.7 14.2 13.0 11.7 13.0 11.0 14.0 12.6 11.2 9.6 13.0 13.0 12.1 12.5 11.3 12.5 12.1 9.9 13.4 9.1 8.8
Evaporation                                                            
Piche (ml) 5.3 4 3.1 4.9 4.3 2.3 1.5 3.3 4.9 4.6 1.8 4 3.4 4.1 3.5 2.1 2.6 3.6 > > > > > > > > 26.5 5.1 0.7 3.5 4.2
Pan (over interval, mm) > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > >
Rainfall                                                              
Total (mm) _ 3.9 0.1 _ 0.2 11.7 6.9 tr _ 0.6 9.0 0.2 0.5 0.9 0.1 1.7 4.0 tr 4.1 4.8 0.8 _ _ 4.7 _ 6.7 0.4 tr 18.3 1.0 0.7
Duration (hrs) _ 0.6 0.1 _ 0.2 1.0 1.9 _ _ 4.0 7.5 1.2 0.3 0.4 0.3 1.6 2.5 _ 1.7 3.6 1.3 _ _ 2.3 _ 14.0 0.2 _ 10.0 0.6 2.4
Intensity (mean over 24 hrs, mm/hr) _ 6.5 1.0 _ 1.0 11.7 3.6 _ _ 0.2 1.2 0.2 1.7 2.3 0.3 1.1 1.6 _ 2.4 1.3 0.6 _ _ 2.0 _ 0.5 2.0 _ 1.8 1.7 0.3
Run of Wind                                                              
Miles (over 24 hrs) 60.2 70.2 39.55 85.14 106.24 96.83 119.07 84.71 130.09 86.07 91.85 84.61 100.66 111.37 100.04 51.06 173.87 100.66 139.28 121.98 165.31 179.79 156.34 107.51 106.59 154.84 155.24 127.62 94.53 81.02 59.88
Mean (mph) 3.3 3.8 2.1 4.6 5.8 5.2 6.4 4.6 7 4.7 5 4.6 5.5 6 5.4 2.8 9.4 5.5 7.5 6.6 9 9.7 8.5 5.8 5.8 8.4 8.4 6.9 5.1 4.4 3.2
Gust (mph) <15 <15 20 22 19 23 26 17 26 21 20 24 19 22 23 <15 33 23 31 24 29 33 25 31 23 26 22 21 19 25 16
Sunshine (hrs) 8.2 9.1 4.3 9.6 6.2 4.2 0.4 2.5 9.1 10.8 2.0 10.6 9.2 6.9 7.6 3.9 0.8 8.2 2.2 3.3 0.1 1.3 2.6 3.9 3.4 0.7 1.2 4.6 0.0 9.9 7.8
Humidity Statistics                                                              
Saturated                                                              
VP(Twb) 2.039 2.254 2.144 1.773 1.739 1.45 1.62 1.489 1.245 1.229 1.641 1.674 1.579 1.569 1.589 1.599 1.706 1.413 1.538 1.728 1.684 1.773 1.914 1.914 1.914 1.589 1.558 1.499 1.631 1.441 1.422
VP 1.593 1.903 2.117 1.492 1.602 1.013 1.565 1.387 1.122 1.1 1.607 1.51 1.449 1.412 1.439 1.449 1.658 1.27 1.436 1.536 1.684 1.691 1.832 1.914 1.832 1.493 1.558 1.287 1.494 1.305 1.224
Saturated                                                              
VP 3.04 3.077 2.199 2.296 1.976 2.185 1.706 1.641 1.403 1.394 1.695 1.951 1.785 1.819 1.831 1.843 1.785 1.62 1.695 2.065 1.684 1.914 2.065 1.914 2.065 1.739 1.558 1.831 1.854 1.641 1.717
Rel. Humidity 52.4 61.8 96.3 65 81.1 46.4 91.7 84.5 80 78.9 94.8 77.4 81.2 77.6 78.6 78.6 92.9 78.4 84.7 74.4 100 88.3 88.7 100 88.7 85.9 100 70.3 80.6 79.5 71.3
                                                               
Dew Point (C) 13.9 16.7 18.4 12.9 14 7.2 13.7 11.8 8.7 8.4 14.1 13.1 12.5 12.1 12.4 12.5 14.6 10.5 12.4 13.4 14.8 14.9 16.1 16.8 16.1 12.9 13.6 10.7 13 10.9 9.9
Pressure (mb) 1023.4 1019.4 1015.2 1013.4 1010.2 1004.8 1003.0 1011.9 1016.3 1016.7 1014.2 1005.5 1009.6 1008.4 1007.3 1019.7 1003.5 1009.4 1009.6 1014.3 1006.7 1000.9 1001.8 1008.4 1021.3 1017.6 1010.1 1016.8 1012.1 1016.8 1022.4
Days with                                                              
thunder _ _ 1 _ _ 1 1 _ _ _ _ _ _ _ _ _ 1 _ _ _ _ _ _ 1 _ _ _ _ _ _ _
hail<5mm _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _
hail>/=5mm _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _
snow _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _
fog _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _
gales _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _

This page was created by Pitsford Hall weather station on 04 August 2009.