PITSFORD HALL WEATHER STATION CLIMATOLOGICAL OBSERVATIONS FOR SEPTEMBER 2000 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 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 Total Cloud 5 4 2 3 7 8 8 8 6 2 2 4 7 8 8 7 8 8 8 4 2 2 4 8 9 8 8 8 6 9 Wind Direction s nnw nw calm se e wsw nw w s s n nw sw w nw w ese e n e w se se se s s s s sw Speed (knots) 9 5 13 0 9 13 5 5 2 2 2 5 1 3 5 19 2 9 9 19 19 19 2 2 5 9 5 3 3 2 Weather 3 3 2 11 3 3 3 50 2 2 2 2 2 51 61 2 53 59 50 3 1 3 1 3 43 3 3 3 3 45 Visibility 7 7 8 7 7 7 7 6 7 7 7 7 7 5 5 7 6 4 5 8 8 8 6 5 4 7 8 6 7 3 Screen (C) Dry Bulb 14 16.1 11.4 8.7 15.1 14 15 17 16.1 19.7 21 18.9 17 15 16 14.6 14.1 13.7 12.9 14.6 14.9 17.7 16.9 15 9.6 17.2 15.2 14 15.4 13.4 Wet Bulb 13.3 14.5 9.5 7.8 12.8 13.5 13.1 15.4 14.1 17.5 18.1 15.7 14.8 14.9 15.9 13 13.6 13.5 12.2 12.6 12.6 14.5 15.8 14 9.5 16.1 13.5 13.4 14.1 13.3 Max 17.8 17.7 17.4 18.2 16.1 17.9 20.4 16.9 21.8 25.4 27.9 22.3 20.1 16.5 17.3 18.3 18.9 13.6 14.9 17.2 18.1 21.3 24.4 15.9 16.2 22.9 15.8 18.1 17.1 16.1 Min 10.1 11 5.9 5.4 8.4 13.1 8.4 13.8 11.9 13.7 15 14.5 14 12.5 13.6 11.4 10.6 13.1 8.7 8.7 6.4 9.3 6.5 12.6 8.8 9.5 10.4 9.9 9.4 11.2 Ground Obs Grass Min 7.9 7.4 2.3 -4 6 12.5 4.1 13.9 8.9 11.8 11 11.6 10.6 8.3 13.5 11.5 7.1 12.5 5.5 5.5 2 11.9 8.6 9.3 5.9 9.2 7.8 7.2 -2.9 7 Conc. Min 9.7 10.5 5.5 5.4 8.9 12.9 7.9 14.4 11 14.7 14.2 14.3 14.5 17 14.5 11.6 9.9 13 8.9 12.5 5.4 12.1 11.5 11.6 8 9 9.5 9.9 8.6 9.5 Bare Earth Min 9.1 10 4.9 4.5 8.6 12.6 6.9 13.9 10.6 14.2 13.4 12.4 11 10.6 14 11.5 9.1 12.5 7.3 7.6 5.1 5.1 11.1 11.3 7.6 13.2 14 13.1 7.9 9.1 Soil Temps 5cm 15.1 17.1 12.2 11.1 14 14.9 14.5 17.5 16.2 18.2 17.6 18.2 18.2 16.8 16.9 15.1 15 15.1 17 14.3 11.9 15 14.5 14.8 10.6 12.1 13.4 13.8 14.1 14.5 10cm 15.3 16 13 12.4 14 15 14.1 16.9 15.3 17.1 17.9 18 17.5 16.3 16.5 15.1 14.9 15.2 14 13 11.9 15 14.3 14.5 12 13.1 13.2 14.2 13.1 13.4 20cm 16.4 16.1 15 14.4 15.2 15.9 15 16.5 15.9 17.4 17.9 18.1 17.6 17 16.9 15.9 15.6 16 14.9 14 13.1 15.1 15.2 15.2 13.9 14.3 14.6 14.3 13.8 13.6 30cm 17.1 16.7 16.1 15.4 15.5 16 15.6 16.5 16.5 17.6 18 18.5 18.5 17.5 17 16.9 16.6 16 15.2 15 14.8 15.1 16 16.4 15.2 15.1 14.5 14.1 14 14.8 40cm 17.4 17 16.6 16 16 16 15.9 16.5 16.6 17.4 17.5 18.4 18.3 17.7 17.2 17 16.7 16 15.5 15.1 15 14.9 15.8 16.2 15.6 15 14.9 14.5 14.4 14.9 50cm 17.7 17.4 17.1 16.1 16 17.1 16 16 16.8 17.4 18 18.5 18.5 18 17.5 17.4 17 16.2 15.1 15.2 15.6 15.3 16 16.4 15.8 14.9 15 14.9 14.6 15.2 100cm 17.4 17.3 17 17.4 16.4 16.5 16.1 15.9 16.6 16.6 16.5 17 17 17 16.9 16.9 16.7 16.5 15.9 15.3 15.7 15.4 15.5 15.5 15.4 14.7 14.8 14.9 14.4 14.9 Ground Without snow 1 1 1 1 1 1 1 1 1 0 0 0 0 1 1 1 1 2 1 1 1 1 1 1 1 1 1 1 1 1 With snow Snow depth Concrete 0 0 0 0 0 1 0 1 0 0 0 0 0 1 1 1 1 2 1 0 0 1 1 0 1 1 0 1 1 0 Rainfall Total 2.3 0.2 tr(w) _ 0.9 tr 1.5 0.3 _ _ _ _ 0.7 19.5 1.7 tr 7.1 4.4 10.5 tr 0.3 0.3 _ 11.4 15.2 tr 5.6 tr 0.1 1.1 Duration 2.5 0.1 _ _ n/a 0.6 1.3 1 _ _ _ _ 1 17.1 2.5 _ 3 3.8 5.4 _ 0.1 0.5 _ 6.41 11.8 _ 4.2 0.3 _ 1.1 Acidity 6.49 _ _ _ 6.49 _ 6.43 _ _ _ _ _ 6.63 6.77 6.35 _ 6.62 6.53 6.53 _ _ _ _ 5 6.49 _ 6.46 _ _ _ Run of Wind Miles 68.6 119.6 57.7 41.7 64.3 137 81.7 36.6 26.7 37.1 67.9 102.7 29.26 42.63 185.4 118.4 75.5 32.2 67 57 83 37 76.6 32.1 65.29 88.68 115.67 60.7 45.3 11.1 Mean 3.7 6.5 3.1 2.3 3.5 7.4 4.4 2 1.4 2 3.7 5.6 1.6 2.3 10 6.4 4.1 1.7 3.6 3.1 4.5 2 4.1 1.7 3.5 4.8 6.3 3.3 2.5 0.6 Gust 18 30 22 14 20 34 20 20 8 12 18 23 9 14 30 33 18 17 20 21 21 9 21 13 15 21 27 27 16 8 Sunshine 2 4 8.2 9.7 1.2 6.4 0.6 0 7.1 8.8 7.6 8.3 1.6 0 0.1 3.5 2.6 0.2 0 7.1 3.7 7.7 8.7 0 5.3 4 2.1 5.6 7.7 1.6 Statistics Saturated VP(Twb) 1.528 1.652 1.188 1.059 1.479 1.548 1.508 1.751 1.61 2.001 2.078 1.785 1.684 1.695 1.808 1.499 1.558 1.548 1.422 1.46 1.46 1.652 1.796 1.599 1.188 1.831 1.548 1.538 1.61 1.528 VP 1.48 1.543 1.059 0.998 1.322 1.514 1.378 1.641 1.473 1.85 1.879 1.566 1.533 1.688 1.801 1.39 1.524 1.534 1.374 1.324 1.303 1.433 1.721 1.531 1.181 1.756 1.432 1.497 1.521 1.521 Saturated VP 1.599 1.831 1.349 1.126 1.717 1.599 1.706 1.939 1.831 2.296 2.488 2.185 1.939 1.706 1.819 1.663 1.61 1.569 1.489 1.663 1.695 2.026 1.927 1.706 1.196 1.963 1.728 1.599 1.751 1.538 RH % 92.6 84.3 78.5 88.6 77 94.7 80.8 84.6 80.4 80.6 75.5 71.7 79.1 98.9 99 83.6 94.7 97.8 92.3 79.6 76.9 70.7 89.3 89.7 98.7 89.5 82.9 93.6 86.9 98.9 Dew Point 12.8 13.4 7.8 6.9 11.1 13.2 11.7 14.4 12.7 16.3 16.5 13.7 13.3 14.8 15.8 11.9 13.3 13.4 11.7 11.1 10.9 12.3 15.1 13.3 9.4 15.4 12.3 13 13.2 13.2 Pressure 1001.1 1005.8 1019 1023.8 1021.1 1009.3 1015.2 1018 1023.2 1022.1 1016 1010.9 1014.2 1014.9 1004.8 1012.9 1013.7 999.7 1000.1 1001.9 1012.4 1014 1019.8 1013.3 1018.1 1013.8 1010.9 997.6 997.8 1003.4 Days with thunder 1 _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ 1 hail<0.5mm _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ hail>/=0.5mm _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ snow _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ fog _ _ _ 1 _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ 1 _ _ _ _ 1