PITSFORD HALL WEATHER STATION CLIMATOLOGICAL OBSERVATIONS OCTOBER 2001 Observations at Pitsford Hall at 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 0900 hours UTC Total Cloud 6 8 5 5 8 4 8 5 6 5 5 4 9 9 8 9 8 7 9 9 9 8 7 4 5 8 0 6 8 0 1 Wind Direction sw sw sw ssw s s ssw s n s s se calm calm sse sse ese ese se calm nw calm s ssw ssw s s nnw sw ssw nw Speed (knots) 9 2 5 4 9 10 10 12 6 7 5 5 0 0 5 2 3 1 2 0 4 0 6 10 7 16 6 6 3 14 12 Weather 2 53 3 2 52 2 2 2 2 2 2 2 45 45 3 1 3 2 10 10 10 1 2 2 10 65 0 10 2 5 3 Visibility 7 6 6 7 7 7 7 6 7 7 7 5 3 2 5 5 6 6 4 4 4 5 7 7 7 5 7 7 6 6 7 Screen (C) Dry Bulb 14.2 12.4 11.4 12.9 14.6 13.6 12.0 12.0 11.8 9.6 14.4 10.5 12.4 14.0 14.5 9.6 10.4 14.3 9.0 15.2 10.2 10.4 13.6 12.3 12.7 12.2 10.2 9.1 9.9 12.0 8.9 Wet Bulb 13.0 12.3 10.9 12.0 13.8 12.6 11.4 11.1 11.0 9.4 13.9 10.4 12.3 14.0 14.3 9.2 10.1 14.0 8.8 15.0 9.8 10.0 13.2 11.9 12.4 12.1 10.0 9.0 9.4 10.9 7.8 Max 18.7 16.6 17.7 19.0 20.2 17.4 15.6 16.3 17.0 14.9 17.0 21.3 21.0 17.2 18.1 16.2 17.4 18.9 15.8 17.5 13.5 16.5 17.5 16.7 15.7 14.5 16.0 15.6 14.1 17.4 12.2 Min 12.5 11.8 10.2 10.2 12.4 11.7 11.2 10.0 9.6 7.7 9.5 10.9 10.1 12.3 13.5 8.2 9.1 10.0 7.8 8.7 10.0 9.5 10.1 10.2 9.1 11.9 8.6 8.4 6.7 9.7 7.8 Ground Observations Grass Min 10.2 10.1 7.1 7.6 10.8 8.5 8.1 7.8 7.2 3.0 9.0 6.1 8.1 12.0 11.5 5.0 6.1 6.2 3.5 8.7 7.4 9.0 9.9 7.5 4.4 10.8 4.6 4.1 2.6 7.7 4.7 Conc. Min 10.5 11.5 7.8 8.1 12.2 9.5 8.2 8.2 8.5 6.1 11.1 9.5 9.5 12.1 12.1 5.4 7.2 7.8 6.0 9.0 9.4 10.0 10.2 8.5 7.0 11.1 6.5 7.3 4.3 8.4 5.6 Bare Earth Min 11.2 11.5 9.1 9.2 12.1 10.2 9.5 9.4 8.5 6.6 11.8 9.8 9.0 12.6 11.7 5.1 6.5 _ _ _ _ _ _ 9.1 7.8 11.5 7.6 7.7 5.7 9.0 6.9 Soil/Earth Temperatures Surface 10.8 14.0 10.6 12.1 14.0 12.9 11.2 11.9 12.2 10.1 13.2 9.9 12.9 14.6 11.7 5.1 6.5 7.9 7.4 8.0 10.0 9.3 13.2 11.6 12.0 12.6 9.6 8.9 9.6 10.4 9.3 5cm 12.1 13.0 11.1 11.4 13.2 12.4 11.7 11.8 11.2 9.5 13.0 10.1 12.9 14.5 11.9 9.6 10.5 13.9 10.2 13.9 11.8 11.2 13.9 11.4 11.1 12.7 9.6 10.1 8.8 9.9 9.0 10cm 13.7 13.6 11.2 12.1 13.8 13.4 12.5 11.9 11.8 10.4 12.9 10.9 13.8 15.1 12.2 10.2 10.9 14.1 11.4 14.0 11.8 12.0 13.4 12.2 11.7 13.2 10.8 11.2 9.5 10.6 9.3 20cm 14.1 14.1 12.5 13.0 13.9 14.2 13.4 12.9 12.6 11.0 13.4 11.8 14.2 15.0 12.4 10.4 11.6 14.0 11.6 13.8 12.4 12.5 13.4 12.8 12.4 13.2 12.0 11.9 9.9 11.3 11.3 30cm 13.6 15.0 14.1 14.2 14.1 14.5 14.0 13.8 13.5 13.2 13.5 13.9 14.1 15.6 12.9 10.9 11.8 14.0 13.5 13.5 13.5 12.8 13.4 13.1 12.9 13.1 12.5 12.1 11.4 11.6 11.5 40cm 14.5 14.9 14.2 13.6 14.2 14.3 14.0 13.7 13.6 13.1 13.4 13.5 14.0 14.4 13.1 11.3 12.6 13.7 13.5 13.4 13.3 12.6 13.2 13.1 12.8 13.0 12.4 12.1 11.6 11.6 11.6 50cm 14.6 15.2 14.5 14.2 14.3 14.6 14.5 14.2 13.9 13.9 13.7 13.2 14.2 14.6 13.9 14.1 13.1 14.0 14.0 13.5 13.7 13.5 13.5 13.5 13.4 13.4 13.1 12.9 12.5 12.1 12.5 100cm 13.7 13.6 13.2 13.2 13.5 13.4 13.3 13.4 13.2 13.0 12.8 12.8 13.1 13.1 14.2 14.5 14.2 13.2 13.0 13.0 13.2 13.0 12.9 12.8 12.8 12.7 12.7 12.5 12.4 12.3 12.2 State of the Ground Without snow 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 2 2 2 1 2 1 1 1 1 1 With snow _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ Snow depth _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ State of the Grass 1 3 3 1 1 1 1 1 3 1 1 1 2 2 1 1 1 3 2 3 3 3 3 3 1 3 1 3 1 1 1 State of the Concrete 1 1 1 1 1 0 0 1 1 0 0 0 0 1 1 1 1 2 1 2 2 1 2 2 0 2 0 1 0 1 1 Evaporation Hook-gauge reading _ 87.33 _ _ _ 76.39 70.06 _ _ _ _ _ 73.32 73.08 71.9 _ 73.21 _ _ _ _ _ 75.31 78.48 79.28 51.23 59.96 62.46 62.62 63.96 65.12 Total evaporation (less rainfall) _ 0.67 > > > 1.47 2.93 > > > > > 4.84 0.24 1.18 > 4.39 > > > > > n/a 0.43 0.70 1.07 0.00 0.80 0.06 1.34 0.06 Rainfall Total 7.6 1.5 tr tr 0.4 3.4 11.3 1.7 0.2 tr _ _ 0.3 2.1 5.6 0.1 4.1 _ 9.1 0.3 12.7 11.1 3.6 0.1 5.6 9.7 1.7 0.1 _ 1.1 _ Duration 3.5 0.5 _ 0.8 0.1 0.8 3.0 0.8 0.1 0.0 _ _ 1.3 2.5 5.0 _ 3.5 _ 2.5 0.2 7.5 3.8 1.0 0.1 3.5 4.0 2.5 _ _ 1.8 _ Acidity 6.78 _ _ _ _ 6.56 6.45 6.36 _ _ _ _ _ 6.43 6.14 _ 6.40 _ 6.09 _ 5.90 5.99 6.14 _ 6.33 6.24 6.40 _ _ _ _ Run of Wind Miles 129.8 98.77 83.87 68.76 98.62 78.16 145.24 97.29 96.24 94.18 69.81 22.24 25.76 106.32 18.49 57.46 87.23 40.64 56.9 102 107 48.36 102.72 78.67 144.17 108.58 47.3 51.91 139.95 176.35 126.79 Mean 7 5.4 4.5 3.7 5.3 4.2 7.9 5.3 5.2 5.1 3.8 1.2 1.4 5.8 1 3.1 4.7 2.2 3.1 5.5 5.8 2.6 5.6 4.3 7.8 5.9 2.6 2.8 7.6 9.6 6.9 Gust 30 23 19 20 21 20 32 23 22 21 18 <15 <15 16 22 16 22 17 18 19 28 <15 20 17 26 24 <15 <15 21 28 38 Sunshine 0.0 1.5 6.0 2.8 5.9 4.9 2.3 4.6 3.6 0.0 3.5 6.6 3.7 0.0 1.5 1.0 3.9 0.4 0.0 0.0 0.0 2.8 5.1 5.6 1.0 0.7 6.9 7.7 0.1 4.8 6.6 Statistics Saturated VP(Twb) 1.499 1.431 1.305 1.403 1.579 1.46 1.349 1.322 1.313 1.18 1.589 1.262 1.431 1.599 1.631 1.164 1.237 1.599 1.133 1.706 1.212 1.229 1.518 1.394 1.441 1.413 1.229 1.149 1.18 1.305 1.059 VP 1.417 1.424 1.271 1.342 1.524 1.392 1.308 1.261 1.259 1.166 1.555 1.255 1.424 1.599 1.617 1.137 1.217 1.578 1.119 1.692 1.185 1.202 1.491 1.367 1.421 1.406 1.215 1.142 1.146 1.23 0.984 Saturated VP 1.62 1.441 1.349 1.489 1.663 1.558 1.403 1.403 1.385 1.196 1.641 1.27 1.441 1.599 1.652 1.196 1.262 1.631 1.149 1.728 1.245 1.262 1.558 1.431 1.469 1.422 1.245 1.156 1.22 1.403 1.141 RH % 87.5 98.8 94.2 90.1 91.6 89.3 93.2 89.9 90.9 97.5 94.8 98.8 98.8 100 97.9 95.1 96.4 96.8 97.4 97.9 95.2 95.2 95.7 95.5 96.7 98.9 97.6 98.8 93.9 87.7 86.2 Dew Point 12.1 12.2 10.5 11.3 13.3 11.9 10.9 10.4 10.4 9.2 13.6 10.3 12.2 14 14.2 8.9 9.9 13.8 8.6 14.9 9.5 9.7 12.9 11.6 12.2 12 9.8 8.9 9 10 6.7 Pressure 996.4 998.4 1006.5 1010.8 1005.5 1002.0 997.7 991.2 1003.5 1018.7 1022.9 1021.4 1020.0 1013.5 1005.0 1020.4 1017.6 1007.5 1010.8 1000.4 1000.6 1008.8 1008.4 1013.2 1019.5 1010.8 1014.5 1025.1 1024.5 1014.7 1018.0 Days with thunder _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ hail<0.5mm _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ hail>/=0.5mm _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ snow _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ fog _ _ _ _ _ _ _ _ _ _ _ 1 1 1 _ _ _ _ 1 1 1 _ _ _ _ _ _ _ _ _ _