PITSFORD HALL WEATHER STATION CLIMATOLOGICAL OBSERVATIONS JANUARY 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 7 8 5 8 8 3 4 5 6 7 3 3 0 1 7 6 8 7 9 9 9 9 9 2 1 1 0 0 9 8 8 Wind Direction ssw s ssw ssw nnw ssw wnw ssw w nne e e e ene e ne ne ene nw calm sse sse ssw sse ssw ssw w nnw nnw ssw nne Speed (knots) 8 20 2 2 8 10 2 2 2 14 23 19 10 7 7 6 3 2 3 0 6 4 12 9 11 11 14 6 6 9 5 Weather 2 50 1 63 50 1 1 3 3 3 2 2 0 2 10 10 1 1 71 45 73 58 11 0 2 2 0 0 46 53 43 Visibility 6 6 8 5 5 6 8 6 6 5 7 7 7 7 5 5 5 5 4 4 4 5 7 7 7 7 7 6 3 6 4 Screen (C) Dry Bulb 7.2 9.1 2.5 8.1 5.3 2.1 2.9 2.9 0.5 3 2.9 2.6 1.9 1.7 1.4 -3.5 -2.4 -1.1 -1 -0.8 0.6 2.7 5 4.9 2.8 2.9 2.9 0.4 1.2 2.9 3.9 Wet Bulb 7.1 8.9 2.2 8.1 5.3 1.9 2.7 2.8 0 3 1.5 1.7 1.4 1.4 0.7 -3.9 -2.7 -1.3 -1.4 -0.8 0.2 2.7 4.7 4.4 2.7 2.6 2.1 -0.1 1 2.5 3.9 Max 9 10 10 10.5 9.1 9.1 8 7.6 7.2 6.6 4.1 5.5 5.3 6.1 3.4 1.6 2.4 1.9 2.9 2.1 2.4 7.3 11.2 8.8 7.8 7.1 7.2 6.1 4.9 4.2 3.6 Min -1.9 7.2 1.4 2.4 -0.5 -1.1 -2.9 -1 -1 -0.8 2.4 1.4 -0.3 -0.4 0.5 -4.5 -4 -2.6 -2.9 -2.8 -3.9 0.1 2.4 4.5 2.4 2.3 -0.1 -2.2 -1 0 2.2 Ground Obs Grass Min -2.6 2.2 -2.5 -0.2 2.8 -3.2 -3.9 -2.7 -4 -3.8 -0.9 -1.2 -4.4 -6.5 -1.9 -8.7 -7.5 -7.5 -4.1 -7.2 -8 0 -2 1.4 -1.7 -0.6 -5.1 -7.9 -4.9 -6.1 1 Conc. Min -2.6 1 -0.5 -0.3 3.4 -0.5 -3.8 -1 -1.5 -3.4 -1.4 -0.7 -3.1 -4.4 -1.4 -5.9 -5 -1 -5 -4.5 -3.7 -0.2 0.7 0.4 1.1 0.7 -1.9 -3.9 -2.5 -2.4 1.1 Bare Earth Min -2.7 2.5 -1 0.3 3.2 -4.5 -4.6 1 -1.7 -3 -0.7 -0.3 -2.6 -3.7 -2 -6.5 -5.8 -1.2 n/a n/a -0.6 -1.2 2 n/a n/a n/a n/a -2.6 -1.8 -1.1 0.4 Soil Temps 5cm 2 5 1.2 4.3 5 1 1 1 0.5 1 0.7 0.4 0.4 0.1 1 0 1 -0.3 0.1 -0.1 -0.2 -0.2 0.8 2.7 1.9 1.2 0.4 0.2 0.3 0.5 2.3 10cm 0.7 5.1 2.5 4.7 4.9 2.5 1.7 1.5 1.1 1.1 1.3 1 1.1 0.8 1.4 -0.5 1.4 0.4 0.4 0.1 0.2 0.1 1.1 3.3 2.6 1.9 1.2 0.7 0.8 0.8 2.4 20cm 1.5 4.5 3 4.9 5 4 3.2 2.7 2.3 1.8 2.1 1.6 2 1.5 1.9 -0.3 1.8 0.9 0.9 0.9 1.8 0.2 1.3 4.5 3.1 2.6 2.1 1.6 1.2 1 2.6 30cm 2.5 4 4.5 4.2 5.1 4.7 3.7 3.7 3.1 2.7 3 2.5 2.8 2.4 2.6 0.7 2.1 1.1 1 1.6 1.5 1.6 2.5 3.8 4 3.5 3.1 2.6 2.4 2.1 2.7 40cm 3 3.5 4.5 4 5.2 5 3.8 4 3.7 2.8 3.4 3.2 3.3 3 3 1.6 2.5 1.5 1.6 2.1 2 1.9 2.7 3.5 4.1 3.7 3.5 3.1 2.5 2.6 2.9 50cm 3.5 3.5 5 4.5 5.2 5.5 4.6 4.5 3.9 2.9 3.9 3.7 4 3.7 4.2 2.5 3.1 2.7 2.2 2.9 2.6 2.5 2.9 3.6 4.2 4.1 3.9 3.6 3.1 3.4 3.4 100cm 5.6 5.5 5.5 5.3 5.3 5 5 5.1 5.5 5 5.2 5.1 4.9 4.9 5.1 4 4.2 3.9 3.4 4.3 4.2 4 3.7 4.1 4.2 4.5 4.2 4.2 4 3.9 4.9 Ground Without snow 2 2 1 2 2 1 1 1 1 1 4 4 4 4 1 4 4 4 _ _ _ 2 1 2 2 1 4 4 4 4 2 With snow 8 5 8 Snow depth 1 1 Concrete 2 2 2 2 2 2 1 1 1 1 0 0 0 0 1 3 3 1 3 0 _ 2 1 2 1 1 0 0 1 1 2 Rainfall Total 5.1 1.3 7.8 2.8 _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ 3.4 2.5 6.6 0.9 0.1 2.5 0.1 _ tr 3.7 tr Duration 2.7 1.3 3.9 1.3 _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ 3.3 2.8 2 1.1 _ 4.3 _ _ _ 2.8 _ Acidity 6.48 5.4 6.42 5.68 _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ 5.97 6.37 6.49 _ _ 6.23 _ _ _ 6.51 _ Run of Wind Miles 206.06 250.22 144.19 92.22 92.09 49.1 163.53 60.76 199.49 115.26 244.32 138.99 127.77 139.4 74.12 57.97 26.41 15.79 56.58 61.88 72.21 170.37 278.63 178.24 214.37 135.94 73.61 80.49 83.5 61.37 78.77 Mean 11.2 13.6 7.8 5 5 2.7 8.9 3.3 10.8 6.2 13.2 7.5 6.9 7.6 4 3.1 1.4 0.9 3.1 3.4 3.9 9.2 15.1 9.7 11.6 7.4 4 4.4 4.5 3.3 4.3 Gust 29 32 28 21 <15 17 19 16 23 36 40 26 22 23 19 <15 <15 <15 <15 <15 18 22 37 27 26 23 24 16 <15 16 16 Sunshine 2.1 0 1.8 0 0.3 4.6 6.4 3.6 2.4 0 3.7 0 7.4 6.2 4 5.5 4.5 0.7 0 2.5 0 0 0 6 7.5 3.5 5.9 4.7 3.3 0 0 Statistics Saturated VP(Twb) 1.009 1.141 0.716 1.081 0.891 0.701 0.742 0.747 0.611 0.758 0.681 0.691 0.676 0.676 0.643 0.458 0.501 0.556 0.551 0.576 0.62 0.742 0.855 0.837 0.742 0.737 0.711 0.607 0.657 0.732 0.808 VP 1.002 1.127 0.696 1.081 0.891 0.688 0.729 0.74 0.577 0.758 0.587 0.63 0.642 0.656 0.596 0.431 0.481 0.543 0.524 0.576 0.593 0.742 0.835 0.803 0.735 0.717 0.657 0.573 0.644 0.705 0.808 Saturated VP 1.016 1.156 0.732 1.081 0.891 0.711 0.753 0.753 0.634 0.758 0.753 0.737 0.701 0.691 0.676 0.472 0.512 0.564 0.568 0.576 0.638 0.742 0.873 0.867 0.747 0.753 0.753 0.629 0.666 0.753 0.808 RH % 98.6 97.5 95.1 100 100 96.8 96.8 98.3 91 100 78 85.5 91.6 94.9 88.2 91.3 93.9 96.3 92.3 100 92.9 100 95.6 92.6 98.4 95.2 87.3 91.1 96.7 93.8 100 Dew Point 7 8.7 1.8 8.1 5.3 1.6 2.5 2.7 -0.8 3 -0.5 0.4 0.7 1 -0.3 -4.7 -3.2 -1.6 -2.1 -0.8 -0.4 2.7 4.4 3.8 2.6 2.2 1 -0.9 0.7 2 3.9 Pressure 987.2 976.3 999.2 976.3 976.6 996.7 1005.2 1011.1 1013.6 1010.3 1021.5 1027.5 1033.1 1036 1026.8 1024.2 1021.5 1020 1022 1025.3 1016.4 1006.5 992.4 986.2 994.9 994 997 1003.8 1017.2 1018.3 1020.8 Days with thunder _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ 1 _ _ _ _ _ _ _ _ hail<0.5mm _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ hail>/=0.5mm _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ snow _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ 1 _ 1 _ _ _ _ _ _ _ _ _ _ fog _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ 1 1 1 1 _ _ _ _ _ _ 1 _ 1