CLIMATOLOGICAL OBSERVATIONS - DECEMBER 2003 - PITSFORD HALL WEATHER STATION 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 Hour of observations 09:00 09:00 09:00 09:00 09:00 09:00 09:00 09:00 09:00 09:00 09:00 09:00 09:00 09:00 09:00 09:00 09:00 09:00 09:00 09:00 09:00 09:00 09:00 09:00 09:00 09:00 09:00 09:00 09:00 09:00 09:00 Total Cloud (oktas) 8 4 8 8 8 6 0 0 8 0 8 8 8 3 1 5 1 0 8 8 2 4 8 8 8 8 3 0 5 8 4 Wind Direction e e nnw nne ne ene ese ese ese nnw sse ssw ssw wnw nnw ssw ssw sse nw sse nnw nnw nw wsw ssw ssw ssw nnw e calm nnw Speed (knots) 13 2 2 14 8 12 9 1 1 1 14 11 11 12 7 4 6 1 3 4 16 15 8 6 11 17 15 14 2 0 1 Weather 20 3 13 3 2 1 0 0 3 48 63 61 63 2 2 10 2 11 10 63 2 2 60 2 3 59 2 0 2 2 2 Visibility 5 6 3 6 7 7 8 9 5 2 5 6 6 7 7 5 7 5 4 3 9 8 7 7 8 5 8 8 7 _ _ Screen (C) Dry Bulb 7.3 5.6 7.4 8.1 7.1 8.0 1.4 -1.5 5.4 -2.6 8.8 4.2 12.2 4.9 -0.4 -0.5 0.9 0.6 2.2 5.8 3.5 -1.3 6.0 9.0 9.0 9.5 3.0 0.6 0.8 0.3 -1.0 Wet Bulb 7.1 5.2 7.2 6.9 6.1 6.6 0.5 -1.9 5.3 -2.7 8.6 3.9 12.0 3.6 -1.2 -0.6 0.7 0.4 2.2 5.7 3.0 -2.1 5.9 8.1 8.1 9.1 2.5 0.0 0.5 0.2 -1.0 Max 8.6 10.5 9.4 8.7 9.0 7.6 4.9 5.5 9.4 8.5 9.6 12.7 12.8 8.5 5.0 3.5 7.8 7.5 5.5 11.5 6.3 5.6 8.6 8.7 10.1 9.9 5.5 4.9 2.5 2.5 5.0 Min 3.9 4.5 4.9 7.3 6.4 3.1 0.5 -2.6 -1.7 -3.2 -3.2 0.2 4.0 3.9 -1.5 -2.6 -0.7 -1.3 -0.4 2.1 2.4 -2.6 -1.5 5.6 5.0 8.5 1.6 -0.4 -0.7 0.0 -2.3 Ground Observations (C) Grass Min 0.3 1.1 2.7 5.7 4.6 -1.0 -3.6 -6.6 -5.2 -5.2 -4.1 -3.0 3.1 -1.2 -5.9 -6.9 -5.2 -5.9 -4.1 -0.4 -1.2 -6.7 -4.7 4.4 0.6 5.6 -1.9 -4.5 -5.6 -6.3 -6.2 Conc. Min 3.0 3.7 4.3 7.0 5.9 2.2 -0.9 -3.2 -2.7 -3.0 -2.0 0.2 3.6 1.7 -2.2 -3.4 -2.1 -2.6 -1.3 1.6 0.8 -3.5 -2.6 4.5 3.6 7.1 0.6 -1.4 -2.4 -2.5 -2.6 Bare Earth Min 3.2 3.8 2.8 6.6 5.4 2.1 -0.8 -2.2 -2.3 -1.3 0.4 _ 3.7 2.1 -1.1 -2.1 -1.6 -1.6 -1.0 1.6 0.7 _ -1.9 4.0 3.5 6.5 0.6 -1.1 -1.9 0.0 -3.5 Soil/Earth Temperatures (C) Surface 6.9 5.6 7.2 7.2 6.7 7.0 2.4 0.6 4.3 1.3 6.6 4.0 10.1 4.4 1.8 0.9 1.1 0.8 2.0 4.6 3.4 0.4 3.4 6.5 6.6 8.1 3.1 1.4 1.6 2.0 1.0 5cm 6.3 6.2 6.8 7.1 6.8 6.6 3.8 1.7 3.7 2.1 5.0 3.7 8.7 5.2 3.1 1.8 1.6 1.3 1.8 3.9 3.6 1.4 2.2 5.3 5.7 7.1 4.0 2.8 1.9 2.1 1.4 10cm 6.6 6.5 7.1 7.4 7.2 6.8 4.3 2.2 3.8 2.6 4.8 4.1 8.6 5.7 3.6 2.3 2.1 1.9 2.1 4.1 3.9 1.9 2.2 5.4 5.9 7.2 4.6 3.3 2.2 2.6 2.0 20cm 6.6 7.2 7.2 7.6 7.6 7.0 6.1 4.4 4.4 4.3 4.6 5.1 6.4 7.0 5.6 4.0 3.5 3.1 3.0 4.0 4.5 3.5 2.9 5.0 5.5 6.5 6.0 4.7 3.6 2.8 3.0 30cm 6.8 7.1 7.1 7.4 7.6 7.2 6.6 5.0 4.6 4.7 4.6 5.4 6.9 7.0 6.0 4.5 3.9 3.5 3.2 3.8 4.4 3.6 3.2 4.6 5.3 6.1 6.1 5.0 4.1 3.5 3.5 40cm 6.6 6.9 7.2 7.5 7.4 7.2 6.6 5.2 4.8 4.7 4.7 5.3 6.6 6.9 6.0 4.6 4.1 3.6 3.4 4.0 4.5 3.7 3.4 4.5 5.2 6.0 6.0 5.1 4.2 3.5 3.5 50cm 6.9 7.7 7.4 7.9 7.9 7.8 7.4 6.4 5.6 5.6 5.3 6.0 6.5 7.1 6.6 5.6 5.0 4.6 4.3 4.6 5.0 4.6 4.1 4.7 5.4 6.0 6.3 5.6 5.0 4.5 4.5 100cm 8.1 8.1 8.1 8.2 8.1 8.3 8.2 6.8 7.5 7.3 7.2 7.0 7.2 7.2 7.2 7.2 6.9 6.7 6.4 6.2 6.1 6.0 6.0 5.9 6.0 6.0 6.2 6.3 6.2 6.0 6.0 State of the Ground Without snow 1 1 1 1 1 1 1 4 1 4 1 1 2 1 4 4 4 4 1 2 1 4 1 1 1 1 1 1 4 _ 4 With snow _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ 8 _ Snow depth _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ State of the Grass 3 1 2 1 1 4 7 7 1 7 3 3 3 4 7 7 7 7 4 3 3 7 3 3 1 3 7 7 7 9 5 State of the Concrete 2 2 2 0 0 1 0 0 1 0 2 1 2 1 0 0 0 0 1 2 1 0 1 1 1 1 1 0 0 2 1 Evaporation (mm) Hook-gauge reading 43.14 _ _ _ _ 56.99 _ _ _ _ _ _ 76.02 _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ Total evaporation (less rainfall) > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > Rainfall (mm) Total 5.6 2.4 0.1 tr _ _ _ _ _ 5.6 1.6 8.7 2.1 0.3 0.1 tr(x) _ _ 4.9 7.3 0.1 3.6 1.4 0.1 0.1 4.5 0.1 0.1 0.5 _ 11.3 Duration (hrs) 5.8 4.4 _ _ _ _ _ _ _ 5.0 1.5 9.5 1.4 0.4 _ _ _ _ 2.0 4.3 _ 2.0 5.4 _ _ 2.6 0.7 _ 1.5 _ 8.0 Intensity (mean over 24 hrs, mm/hr) 1.0 0.5 _ _ _ _ _ _ _ 1.1 1.1 0.9 1.5 0.8 _ _ _ _ 2.5 1.7 _ 1.8 0.3 _ _ 1.7 0.1 _ 0.3 _ 1.4 Run of Wind Miles (over 24 hrs) 130.82 139.26 52.57 44.77 90.34 133.14 102.81 88.92 82.09 68.36 91.61 233.78 185.51 154.11 81.31 153.08 77.59 64.93 68.08 246.07 260.28 126.13 100.74 125.12 170.15 360.15 151.36 437.27 69.6 21.6 127.2 Mean (mph) 7.1 7.5 2.8 2.4 4.9 7.2 5.6 4.8 4.4 3.7 5 12.7 10 8.3 4.4 8.3 4.2 3.5 3.7 13.3 14.1 6.8 5.5 6.8 9.2 19.5 8.2 23.7 3.8 1.2 6.9 Gust (mph) 27 <15 27 29 28 29 19 14 14 21 22 25 38 34 20 19 16 <15 <15 37 37 22 18 18 29 36 25 32 <15 <15 31 Sunshine (hrs) 0.0 0.0 0.0 0.0 4.0 0.0 6.3 4.4 4.3 4.3 0.0 0.0 0.0 2.0 5.9 0.2 6.9 6.7 0.0 0.2 4.5 2.3 0.0 0.0 0.0 0.0 1.2 2.8 0.8 0.0 2.9 Statistics Saturated VP(Twb) 1.009 0.885 1.016 0.995 0.942 0.975 0.634 0.532 0.891 0.501 1.118 0.808 1.403 0.791 0.56 0.585 0.643 0.629 0.716 0.916 0.758 0.524 0.929 1.081 1.081 1.156 0.732 0.611 0.634 0.62 0.568 VP 0.995 0.858 1.002 0.914 0.874 0.88 0.573 0.505 0.884 0.494 1.104 0.788 1.389 0.703 0.506 0.578 0.63 0.616 0.716 0.909 0.724 0.47 0.922 1.02 1.02 1.129 0.698 0.571 0.614 0.613 0.568 Saturated VP 1.023 0.91 1.03 1.081 1.009 1.073 0.676 0.547 0.897 0.505 1.133 0.825 1.422 0.867 0.593 0.589 0.652 0.638 0.716 0.923 0.785 0.556 0.936 1.149 1.149 1.188 0.758 0.638 0.648 0.624 0.568 RH % 97.3 94.3 97.3 84.6 86.6 82 84.8 92.3 98.6 97.8 97.4 95.5 97.7 81.1 85.3 98.1 96.6 96.6 100 98.5 92.2 84.5 98.5 88.8 88.8 95 92.1 89.5 94.8 98.2 100 Dew Point (C) 6.9 4.8 7 5.7 5 5.1 -0.9 -2.6 5.2 -2.9 8.4 3.5 11.8 1.9 -2.6 -0.8 0.4 0.1 2.2 5.6 2.4 -3.6 5.8 7.3 7.3 8.7 1.8 -0.9 0.1 0 -1 Pressure (mb) 998.8 1011.7 1020.7 1030.1 1031.4 1029.2 1031.8 1021.9 1017.7 1014.9 1002.7 1017.9 1005.2 1013.4 1027.9 1029.1 1023.1 1016.7 1015.7 1002.8 1005.6 1029.6 1020.9 1024.8 1017.9 1001.1 994.4 995.1 1004.5 1015.3 1028.9 Days with thunder _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ hail<5mm _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ hail>/=5mm _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ snow _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ 1 _ fog _ _ 1 _ _ _ _ _ _ 1 _ _ _ _ _ _ _ _ _ 1 _ _ _ _ _ _ _ _ _ _ _