PITSFORD HALL WEATHER STATION CLIMATOLOGICAL OBSERVATIONS JANUARY 2003 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 8 8 8 1 0 3 1 8 7 3 2 8 7 7 8 3 8 8 8 8 7 8 5 6 8 8 8 7 8 8 2 Wind Direction s ene nne n nw ne e n n n nnw sw wsw ssw ssw nw ssw ssw wnw s s nw nw s sw sw nw nw n n nw Speed (knots) 8 7 10 9 1 11 7 4 5 9 3 4 9 6 7 6 26 8 6 23 12 13 13 7 9 8 10 21 34 9 7 Weather 51 63 61 1 0 1 1 2 1 1 1 2 2 2 3 1 2 2 63 63 1 1 1 3 25 2 2 2 50 75 1 Visibility 5 7 6 8 7 7 6 6 7 7 7 5 7 8 7 7 7 7 7 7 7 6 7 7 7 7 5 7 7 3 8 Screen (C) Dry Bulb 7.3 6.7 2.8 0.4 -2.6 0.9 -2.6 -1.2 0.7 2.1 -2.5 -2.1 8.0 7.2 8.1 5.7 7.7 3.4 7.0 8.5 7.2 5.5 2.8 3.0 9.1 7.6 8.7 4.9 4.1 0.9 -3.1 Wet Bulb 7.1 6.6 2.6 0.3 -3.0 0.3 -2.9 -1.4 0.1 1.5 -2.9 -2.5 7.5 6.8 6.9 4.8 6.4 3.3 6.9 8.0 6.4 5.2 2.1 2.3 8.5 7.4 8.4 3.7 2.8 0.3 -3.2 Max 10.4 7.0 2.7 3.5 4.1 3.2 0.1 0.9 3.6 3.7 2.8 7.9 9.7 9.1 10.0 9.3 7.7 8.1 9.5 9.1 8.5 8.5 8.4 9.0 12.5 12.4 13.5 7.7 6.6 2.1 3.4 Min 2.0 6.3 2.3 -1.3 -3.1 -3.2 -3.6 -4.2 -1.4 0.3 -3.6 -5.2 -2.7 6.9 7.0 3.4 3.5 1.6 3.2 3.8 2.8 4.0 2.5 0.4 2.6 3.7 6.8 3.6 1.7 0.1 -3.6 Ground Observations Grass Min 1.7 3.1 1.0 -3.8 -5.4 -5.2 -3.5 -5.8 -1.6 -3.1 -3.9 -6.9 1.2 3.0 3.5 0.0 2.1 -1.5 2.1 0.7 3.0 1.5 -0.8 -3.2 1.0 -1.1 1.4 0.2 -1.1 -4.2 -7.2 Conc. Min 3.0 5.1 3.0 -0.8 -3.6 -3.5 -5.3 -5.6 -2.7 -5.9 -5.0 -5.2 -2.5 4.0 4.5 0.8 3.0 -0.6 2.2 2.5 4.2 3.2 1.5 -1.2 1.8 1.5 3.7 0.8 -1.2 -0.6 -4.3 Bare Earth Min 2.6 5.5 3.4 -1.0 -2.0 -4.2 -3.2 -4.1 -3.2 -1.4 _ -2.6 -1.9 3.0 4.5 0.7 2.8 0.1 2.6 2.4 4.2 2.9 1.6 -0.7 1.6 1.8 4.2 1.7 0.5 -1.5 -3.4 Soil/Earth Temperatures Surface 6.0 6.6 4.6 1.2 0.0 0.6 -0.6 -1.2 0.4 0.6 0.0 -0.1 5.0 5.3 6.5 4.0 6.6 3.1 6.1 5.2 5.9 5.2 3.1 2.6 8.0 6.5 7.4 4.1 3.4 0.6 -0.7 5cm 5.3 6.4 5.0 0.8 0.9 0.6 0.3 0.0 0.1 0.2 0.3 0.0 0.5 4.4 5.2 2.8 5.5 2.4 3.5 5.8 5.2 4.8 3.9 2.1 6.2 5.4 6.3 3.8 2.9 1.5 0.4 10cm 5.4 6.7 5.8 2.8 0.9 1.4 1.2 0.7 0.8 0.8 1.0 0.7 0.9 4.6 5.3 3.3 5.6 2.9 5.4 5.6 5.4 5.2 4.6 2.7 6.1 5.5 6.4 4.5 3.3 2.1 1.1 20cm 5.9 7.0 6.5 4.4 3.3 2.6 2.4 1.7 1.9 1.7 1.9 1.6 1.8 4.5 5.0 4.2 5.3 4.0 5.2 5.1 5.6 5.5 5.5 4.1 5.6 5.5 6.4 5.8 4.7 3.6 2.4 30cm 6.2 6.8 6.7 5.4 4.3 3.6 3.2 2.8 2.6 2.4 2.4 2.1 2.0 3.5 4.5 4.4 4.7 4.5 4.8 5.0 5.5 5.6 5.4 4.5 5.1 5.4 6.2 6.4 5.3 4.4 3.3 40cm 6.8 6.8 6.6 5.5 4.6 3.8 3.4 3.1 2.7 2.6 2.5 2.4 2.4 3.6 4.5 4.5 4.9 4.5 4.7 5.1 5.4 5.6 5.5 4.6 5.1 5.3 5.9 6.2 5.2 4.5 3.6 50cm 6.9 7.1 7.0 6.2 5.3 4.9 4.3 3.9 3.6 3.4 3.2 3.0 3.0 4.0 4.7 4.9 5.2 5.0 5.0 5.3 5.6 5.7 5.9 5.3 5.4 5.6 6.3 6.6 5.9 5.4 4.4 100cm 7.5 7.3 7.2 7.2 7.0 6.4 6.2 5.9 5.6 5.3 5.2 5.0 4.8 5.0 4.8 5.0 5.2 5.2 5.3 5.4 5.4 5.5 5.6 5.6 5.7 5.6 5.6 5.9 6.1 5.8 5.5 State of the Ground Without snow 2 2 2 2 4 4 4 4 _ 4 4 4 2 2 2 2 1 1 2 2 2 1 1 1 1 1 1 1 1 _ 4 With snow _ _ _ _ _ _ _ _ 6 _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ 5 _ Snow depth _ _ _ _ _ _ _ _ 2.5 _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ 1.4 _ State of the Grass 3 3 3 7 7 7 7 7 9 4 7 8 4 4 4 4 4 1 3 3 3 1 1 4 3 3 1 1 1 9 7 State of the Concrete 2 2 2 1 0 1 0 0 3 1 0 0 1 1 0 0 0 1 2 2 1 1 1 1 1 1 1 1 1 3 0 Evaporation Hook-gauge reading _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ Total evaporation (less rainfall) > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > Rainfall Total 13.4 12.1 0.8 tr(x) _ tr(x) _ 0.9 0.4 0.2 _ _ _ _ _ _ 0.5 16.0 2.5 11.8 0.9 0.2 _ 0.1 2.8 0.1 1.4 2.6 tr(x) tr(x) 3.3 Duration 4.8 13.3 1.0 _ _ _ _ 1.5 0.3 0.3 _ _ _ _ _ _ 0.5 8.8 2.0 6.3 0.5 _ _ 0.3 3.5 _ 1.3 0.5 _ 0.8 3.8 Acidity _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ Run of Wind Miles 107.44 93.76 118.33 97.05 65.89 43.51 99.83 141.61 122.92 118.93 51.71 123.58 185.18 170.49 162.61 369.99 208.23 240.7 206.85 296.3 130.05 210.81 120.95 262.54 127.77 141.47 217.84 264.18 266.65 341.06 153.42 Mean 5.8 5.1 6.4 5.3 3.6 2.4 5.4 7.7 6.7 6.4 2.8 6.7 10 9.2 8.8 20 11.3 13 11.2 16 7 11.4 6.6 14.2 6.9 7.7 11.8 14.3 14.4 18.5 8.3 Gust 16 21 26 20 16 18 19 20 25 28 <15 27 28 33 31 39 34 29 2.4 38 24 34 29 28 26 24 44 55 50 65 48 Sunshine 0.0 0.0 0.0 4.8 6.1 4.6 2.8 0.0 3.2 2.9 5.8 0.0 0.5 0.0 3.0 2.6 0.0 0.4 3.0 0.0 0.1 2.3 6.1 1.7 3.7 0.4 3.2 4.4 2.2 2.1 5.2 Statistics Saturated VP(Twb) 1.009 0.975 0.737 0.624 0.49 0.624 0.493 0.551 0.615 0.681 0.493 0.508 1.037 0.989 0.995 0.861 0.962 0.774 0.995 1.073 0.962 0.885 0.711 0.721 1.11 1.03 1.103 0.797 0.747 0.624 0.483 VP 0.995 0.968 0.724 0.617 0.463 0.584 0.473 0.538 0.575 0.641 0.466 0.481 1.003 0.962 0.914 0.8 0.874 0.767 0.988 1.039 0.908 0.865 0.664 0.674 1.069 1.016 1.083 0.716 0.659 0.584 0.476 Saturated VP 1.023 0.982 0.747 0.629 0.505 0.652 0.505 0.56 0.643 0.711 0.508 0.524 1.073 1.016 1.081 0.916 1.052 0.78 1.002 1.11 1.016 0.904 0.747 0.758 1.156 1.044 1.126 0.867 0.819 0.652 0.486 RH % 97.3 98.6 96.9 98.1 91.7 89.6 93.7 96.1 89.4 90.2 91.7 91.8 93.5 94.7 84.6 87.3 83.1 98.3 98.6 93.6 89.4 95.7 88.9 88.9 92.5 97.3 96.2 82.6 80.5 89.6 97.9 Dew Point 6.9 6.5 2.4 0.1 -3.8 -0.6 -3.5 -1.7 -0.8 0.7 -3.7 -3.2 7 6.4 5.7 3.8 5 3.2 6.8 7.5 5.6 4.9 1.1 1.4 7.9 7.2 8.1 2.2 1 -0.6 -3.4 Pressure 991.9 979.4 996.4 1013.5 1016.3 1018.2 1020.1 1017.6 1022.0 1027.2 1036.9 1034.4 1026.0 1026.1 1016.6 1025.3 1011.3 1013.0 993.9 986.1 988.2 972.4 1022.1 1035.4 1024.9 1026.5 1028.6 1018.4 1008.7 1007.8 1022.5 Days with thunder _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ hail<5mm _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ 1 _ _ _ hail>/=5mm _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ snow _ _ _ 1 _ _ _ 1 _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ 1 _ 1 _ fog _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _