Climatological Observations - December 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 9.00 9.00 9.00 9.00 9.00 9.00 9.00 9.00 9.00 9.00 9.00 9.00 9.00 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
Total Cloud (oktas) 1 8 8 1 1 8 4 2 4 0 9 5 7 7 7 7 2 6 2 0 2 9 2 7 8 3 4 2 7 7 7
Wind                                                              
Direction sw s sww nnw ssw ssw se sw ssw wnw calm nne nnw nnw ese wnw nnw nnw wnw w sse ssw s sse wnw ssw ssw calm ene ene nnw
Speed (knots) 1 2 2 1 10 10 14 3 2 3 0 7 12 1 1 1 16 15 2 3 6 6 3 2 8 11 19 0 13 16 9
Weather 0 2 20 0 2 21 20 0 2 0 1 20 1 20 20 28 2 22 1 0 2 43 10 2 10 2 25 10 2 26 2
Visibility 7 5 6 8 7 8 7 8 6 7 2 7 7 6 6 4 7 6 7 8 8 3 7 7 5 7 7 6 7 7 7
Screen (C)                                                              
Dry Bulb -1.0 7.0 6.5 1.3 6.5 8.6 8.0 6.0 8.0 5.6 2.9 4.4 3.6 3.8 2.2 1.4 1.3 -1.5 -4.8 -5.1 -2.5 -2.1 -2.9 -1.1 0.8 4.6 4.0 0.0 1.6 2.4 2.1
Wet Bulb -1.2 6.9 6.4 0.6 5.9 7.9 7.5 5.0 7.5 5.0 2.9 4.2 3.4 3.5 2.0 0.1 0.9 -1.5 -5.0 -5.5 -2.7 -2.1 -2.9 -1.1 0.8 4.4 3.5 0.0 1.6 2.4 1.4
Max 7.0 9.2 6.4 9.4 12.0 10.0 10.5 10.0 10.1 9.4 6.5 7.7 6.6 5.5 2.1 4.2 3.4 0.0 1.1 1.4 0.4 0.1 2.1 2.8 5.5 7.6 5.6 4.8 3.2 3.6 3.5
Min -1.5 -1.5 4.6 0.7 1.0 6.1 5.5 4.0 5.6 3.8 0.5 2.4 3.0 3.3 1.9 -1.9 0.3 -2.0 -6.5 -5.6 -5.7 -2.6 -4.6 -3.2 0.1 0.3 2.6 0.0 -0.5 0.4 2.0
Solar Radiation (W/m^2) 42 12 5 19 81 23 11 21 30 21 11 39 44 11 11 7 26 86 118 5 111 19 60 46 5 21 18 32 10 7 18
Grass & Concrete                                                              
State of Grass 7 3 3 3 3 3 3 3 3 3 2 3 3 3 1 2 9 9 9 9 9 9 9 9 9 5 4 5 5 9 3
State of Concrete 3 1 3 3 1 1 2 0 2 2 2 0 1 3 1 2 1 3 3 3 3 3 3 3 1 1 1 3 0 1 1
Concrete Min (C) -3.0 -2.5 4.0 -1.5 -1.0 5.6 2.5 2.5 5.4 3.9 -0.5 2.6 2.4 3.4 2.2 -2.6 -0.8 -2.6 -7.3 -6.8 -6.4 -3.8 -5.9 -3.7 0.1 -1.0 1.5 -0.8 -1.4 -0.5 0.7
Evaporation                                                              
Piche (ml) 2.2 4.1 1.5 0.9 1.7 2.7 1.1 1 1.6 0.5 0.3 0.6 0.4 0.2 0.4 0.4 > > > > > > 2.4 0.1 0.7 1.2 > > > 2.6 0.1
Pan (over interval, mm) > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > >
Rainfall                                                              
Total (mm) 2.1 1.8 3.0 5.4 9.0 0.1 3.1 1.6 0.8 0.3 0.1 0.3 0.8 4.8 tr 1.8 1.6 0.3 1.0 0.3 _ tr(x) 2.6 1.5 0.1 tr _ _ 12.2 2.2 _
Duration (hrs) 1.5 1.8 2.1 5.1 7.8 0.1 2.9 1.8 0.3 0.1 _ 0.8 0.5 13.0 _ 6.8 2.5 1.1 1.1 2.9 _ _ 2.1 3.9 _ _ _ _ 13.5 5.5 _
Intensity (mean over 24 hrs, mm/hr) 1.4 1.0 1.4 1.1 1.2 1.0 1.1 0.9 2.7 2.5 _ 0.4 1.6 0.4 _ 0.3 0.6 0.3 0.9 0.1 _ _ 1.2 0.4 _ _ _ _ 0.9 0.4 _
Run of Wind                                                              
Miles (over 24 hrs) 95.84 99.7 119.67 135.34 236.48 250.32 151.59 97.97 180.6 68.28 60.99 92.01 76.5 96.76 109.34 73.82 259.78 130.74 108.32 136.97 33.5 110.08 90.12 50.05 193.69 207.42 175.1 131.84 314.09 326.75 121.55
Mean (mph) 5.2 5.4 6.5 7.3 12.8 13.6 8.2 5.3 9.8 3.7 3.3 5 4.1 5.2 5.9 4 14.1 7.1 5.9 7.4 1.8 6 4.9 2.7 10.5 11.2 9.5 7.1 17 17.7 6.6
Gust (mph) 22 15 31 19 31 28 28 23 17 18 16 20 19 15 15 27 44 27 27 19 <15 <15 15 16 22 23 31 22 30 39 25
Sunshine (hrs) 0.3 0.0 0.1 2.9 1.9 3.0 0.0 2.6 0.0 6.5 0.7 2.7 2.3 0.0 0.0 0.0 2.8 0.1 2.6 3.6 0.5 2.1 0.1 0.0 2.4 2.4 1.5 3.2 0.0 0.0 0.0
Humidity Statistics                                                              
Saturated                                                              
VP(Twb) 0.56 0.995 0.962 0.638 0.929 1.066 1.037 0.873 1.037 0.873 0.753 0.825 0.78 0.785 0.706 0.615 0.652 0.547 0.421 0.406 0.501 0.524 0.493 0.564 0.648 0.837 0.785 0.611 0.686 0.726 0.676
VP 0.547 0.988 0.955 0.591 0.888 1.018 1.003 0.805 1.003 0.832 0.753 0.811 0.766 0.765 0.693 0.528 0.625 0.547 0.408 0.379 0.488 0.524 0.493 0.564 0.648 0.823 0.751 0.611 0.686 0.726 0.629
Saturated                                                              
VP 0.568 1.002 0.968 0.671 0.968 1.118 1.073 0.936 1.073 0.91 0.753 0.837 0.791 0.802 0.716 0.676 0.671 0.547 0.428 0.418 0.508 0.524 0.493 0.564 0.648 0.849 0.814 0.611 0.686 0.726 0.711
Rel. Humidity 96.3 98.6 98.7 88.1 91.7 91.1 93.5 86 93.5 91.4 100 96.9 96.8 95.4 96.8 78.1 93.1 100 95.3 90.7 96.1 100 100 100 100 96.9 92.3 100 100 100 88.5
                                                               
Dew Point (C) -1.5 6.8 6.3 -0.5 5.2 7.2 7 3.8 7 4.3 2.9 4 3.1 3.1 1.7 -2 0.3 -1.5 -5.4 -6.4 -3 -2.1 -2.9 -1.1 0.8 4.2 2.9 0 1.6 2.4 0.4
Pressure (mb) 1014.4 999.6 995.6 1008.0 998.6 990.2 999.6 1010.1 1017.2 1026.7 1034.7 1034.5 1031.3 1024.3 1019.2 1013.8 1011.2 1017.4 1014.6 999.5 993.8 985.6 991.5 988.6 996.1 999.6 994.9 1005.9 999.2 993.4 1002.3
Days with                                                              
thunder _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _
hail<5mm _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _
hail>/=5mm _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _
snow _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ 1 1 1 _ 1 _ _ _ _ _ _ _ _ 1 _
fog _ _ _ _ _ _ _ _ _ _ 1 _ _ _ _ 1 _ _ _ _ _ 1 _ _ _ _ _ _ _ _ _
gales _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _

This page was created by Pitsford Hall weather station on 05 January 2010.