PITSFORD HALL WEATHER STATION CLIMATOLOGICAL OBSERVATIONS MARCH 2001 Observations 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 900 900 900 900 900 900 900 900 900 900 900 900 900 900 900 900 900 900 900 900 900 900 900 900 900 900 900 900 900 900 900 Total Cloud 6 7 2 6 1 1 3 8 7 8 8 2 7 2 2 7 8 7 7 8 8 8 9 9 8 8 8 8 4 6 8 Wind Direction n n ene ne sse se sw sse s ssw ssw s n w nnw nne ne ne ne e e calm calm e nne nne se ssw n w s Speed (knots) 13 6 8 7 1 1 11 7 7 12 8 5 2 10 8 10 8 12 5 6 11 0 0 2 10 10 10 10 10 11 14 Weather 1 22 2 1 0 0 20 60 50 50 2 1 3 0 10 3 71 50 2 2 72 2 61 20 20 10 10 2 0 2 2 Visibility 6 5 7 6 6 5 6 6 6 7 6 7 6 7 6 6 5 5 7 7 4 3 3 4 5 5 4 7 7 6 7 Screen (C) Dry Bulb 0.2 -1.1 -1.6 -0.2 -1.2 1.2 11.1 9.0 9.1 11.1 10.0 5.3 4.6 5.9 1.5 5.4 1.1 2.2 2.1 2.2 0.7 4.9 8.6 5.0 4.4 3.7 5.1 7.5 7.5 7.5 12.1 Wet Bulb -0.4 -1.3 -2.1 -0.6 -1.4 0.5 10.8 8.7 8.8 10.5 9.9 4.5 4.4 5.9 1.3 5.1 0.8 1.9 0.2 1.6 0.5 4.8 8.5 5.0 4.1 2.9 4.5 6.9 5.4 7.1 10.9 Max 3.9 1.6 2.4 3.5 6.9 11.7 15.7 10.8 13.2 14.3 12.6 10.6 10.3 11.6 9.0 6.1 5.9 4.6 6.6 4.6 3.6 11.3 10.7 6.7 5.9 4.9 8.0 9.1 12.0 12.7 15.9 Min -1.3 -3.8 -4.6 -2.4 -5.3 -1.5 -1.6 7.4 4.9 7.9 6.3 2.1 2.1 1.6 0.3 2.2 -7.0 -8.2 -1.4 -0.2 0.2 0.2 3.2 4.5 3.7 2.0 1.9 4.7 4.4 3.5 3.3 Ground Obs Grass Min -3.9 -9.5 -3.1 -4.7 -10.9 -7.5 -0.8 2.2 2.4 5.6 1.6 -2.0 -2.1 -3.6 -5.1 -0.4 -0.6 -7.4 -7.1 -4.2 -0.2 -0.6 2.1 5.5 3.7 1.1 0.2 0.1 -1.0 0.1 1.3 Conc. Min -1.5 -5.6 -7.1 -2.9 -7.1 -3.2 -2.6 4.7 4.1 7.4 4.5 1.0 2.4 -0.5 -0.4 2.2 0.0 -7.7 2.5 -0.5 0.0 0.3 4.0 4.7 4.5 2.5 2.3 4.4 4.5 3.1 5.0 Bare Earth Min -0.9 -2.6 -3.0 -1.8 -3.9 -4.1 -0.2 2.9 1.9 5.0 4.4 1.0 3.1 0.1 0.1 2.4 -0.1 -6.8 -0.6 -0.6 -0.2 -0.1 4.9 6.1 4.9 2.8 2.5 4.2 3.0 4.4 5.1 Soil Temps 5cm 0.9 0.1 0.2 0.2 0.2 0.2 1.2 3.9 4.4 8.8 7.4 3.8 4.1 3.0 2.2 5.5 1.4 2.7 0.9 2.0 1.1 3.9 6.6 6.7 5.5 4.4 4.2 4.7 8.0 5.2 9.3 10cm 1.4 0.9 0.9 0.6 1.1 0.9 3.7 4.3 4.7 7.6 6.6 4.5 4.4 3.5 3.1 5.6 2.8 2.9 1.9 3.1 2.1 3.1 6.1 6.5 5.5 4.2 4.6 4.9 5.0 5.5 7.8 20cm 2.1 1.9 1.5 1.3 1.6 1.6 4.0 4.6 4.9 6.8 6.7 5.9 4.7 4.8 4.8 6.0 4.2 3.9 3.2 3.6 3.4 3.4 5.7 6.6 6.0 4.9 4.9 5.0 5.5 5.8 7.4 30cm 3.4 3.1 2.8 2.5 2.1 2.5 4.1 5.1 5.1 7.1 7.6 4.6 5.1 6.4 6.5 6.6 5.5 5.3 4.6 4.5 4.2 4.1 5.4 7.7 6.9 6.4 5.4 5.1 5.8 6.0 8.0 40cm 4.0 3.8 3.4 3.1 3.2 3.1 4.2 5.3 5.3 6.6 7.2 4.6 5.4 6.6 6.6 6.7 5.8 5.6 4.9 4.9 4.6 4.3 5.7 6.6 6.6 6.4 5.6 5.4 6.0 6.2 7.5 50cm 4.4 4.2 3.9 3.6 3.9 3.9 4.3 5.8 5.7 6.4 7.0 4.1 5.6 6.7 6.8 6.8 6.0 5.9 5.2 5.2 4.9 4.7 5.9 6.5 6.6 6.5 6.1 5.9 5.8 6.4 7.5 100cm 4.7 4.6 4.6 4.5 4.2 4.6 4.4 7.1 6.5 5.1 5.3 5.5 6.1 6.1 6.0 6.1 5.7 5.9 6.1 5.9 5.2 4.9 6.3 6.0 n/a n/a n/a n/a n/a n/a n/a Ground Without snow _ _ _ 4 4 4 2 1 1 1 2 2 2 2 2 2 _ _ 4 2 _ 2 3 2 2 2 2 2 3 2 1 With snow 8 7 7 3 2 8 Snow depth 0.1 0.1 3 3 2 0.9 Concrete 3 1 3 0 0 0 2 1 1 1 2 2 1 1 1 2 2 2 1 1 1 1 2 2 2 0 0 0 2 0 1 Rainfall Total tr 2.5 0.1 tr tr 9.4 0.1 0.1 0.9 2.1 3.5 7.1 0.2 0 3.9 9.6 3.1 tr _ 10.7 7.2 5.1 4.2 3.7 0.2 0.1 7.1 1.7 1 0.1 0.4 Duration _ 2.5 _ _ _ 3.5 1.3 1.3 1.3 1 2.8 5.5 _ _ n/a 8.5 2.5 _ _ 4.3 3.5 2 8.5 1.5 1.5 0 7.3 2.3 1 _ 0.5 Acidity _ _ _ _ _ 6.25 6.3 5.99 _ 6.65 6.59 6.58 _ _ 6.4 5.96 6.23 _ _ 5.27 6.67 6.55 6.71 6.67 _ _ 6.38 6.58 5.7 _ _ Run of Wind Miles 95.77 106.43 109.93 43.71 67.93 161.92 159.17 136.76 154.46 124.26 118.62 118.03 130.63 69.95 71.09 234.4 163.03 119.95 89.01 197.8 104.6 69.5 54.67 121.67 98.97 103.52 146.28 84.7 125.3 158.72 143.1 Mean 5.2 5.8 6 2.4 3.7 8.8 8.6 7.4 8.4 6.7 6.4 6.4 7.1 3.8 3.9 12.7 8.8 6.5 4.8 10.7 5.7 3.8 3 6.6 5.4 5.6 7.9 4.6 6.8 8.6 7.8 Gust 31 23 18 <15 <15 25 25 17 22 23 22 23 28 17 25 39 30 33 23 36 32 <15 16 25 21 19 22 17 24 25 30 Sunshine 5.2 2.7 5.5 5.3 7.5 5.7 4.7 0.0 3.1 2.1 0.5 3.2 6.4 7.7 3.1 0.0 0.0 0.1 5.7 0.0 0.0 1.2 0.0 0.0 0.2 0.0 0.1 1.2 5.8 7.2 2.3 Statistics Saturated VP(Twb) 0.593 0.556 0.524 0.585 0.551 0.634 1.296 1.126 1.133 1.27 1.22 0.843 0.837 0.929 0.671 0.879 0.648 0.701 0.62 0.686 0.634 0.861 1.11 0.873 0.819 0.753 0.843 0.995 0.897 1.009 1.305 VP 0.553 0.543 0.49 0.558 0.538 0.587 1.276 1.106 1.113 1.229 1.213 0.789 0.823 0.929 0.658 0.859 0.628 0.681 0.492 0.646 0.621 0.854 1.103 0.873 0.799 0.699 0.802 0.954 0.755 0.982 1.223 Saturated VP 0.62 0.564 0.543 0.602 0.56 0.666 1.322 1.149 1.156 1.322 1.229 0.891 0.849 0.929 0.681 0.897 0.662 0.716 0.711 0.716 0.643 0.867 1.118 0.873 0.837 0.797 0.879 1.037 1.037 1.037 1.413 RH % 89.2 96.3 90.2 92.7 96.1 88.1 96.5 96.3 96.3 93 98.7 88.6 96.9 100 96.6 95.8 94.9 95.1 69.2 90.2 96.6 98.5 98.7 100 95.5 87.7 91.2 92 72.8 94.7 86.6 Dew Point -1.4 -1.6 -3 -1.2 -1.7 -0.5 10.6 8.4 8.5 10 9.8 3.6 4.2 5.9 1 4.8 0.4 1.5 -2.9 0.8 0.2 4.7 8.4 5 3.7 1.9 3.8 6.3 2.9 6.7 9.9 Pressure 999.3 1002.8 999.2 997.2 1015.2 1016.5 1003.3 1000.3 996.9 996.7 1001.3 1001.1 994.4 1006.5 1006.2 1010.2 1006.0 1003.2 1016.0 1013.5 999.2 999.0 997.2 1004.1 1003.9 1010.7 1006.1 992.1 994.1 1010.4 1011.4 Days with thunder _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ hail<0.5mm _ _ _ _ _ _ _ _ _ _ _ 1 _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ hail>/=0.5mm _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ snow 1 1 _ _ _ _ _ _ _ _ _ _ _ _ _ _ 1 _ _ _ 1 _ _ _ _ _ _ _ _ _ _ fog _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ 1 _ 1 1 _ _ _ _ _ _ _