PITSFORD HALL WEATHER STATION CLIMATOLOGICAL OBSERVATIONS JUNE 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 0900 hours unless indicated Total Cloud 7 8 3 7 6 7 6 7 8 8 4 3 3 6 7 7 8 8 8 8 6 1 5 1 1 1 6 5 8 5 Wind Direction w nnw nw nw calm nw nw nnw nnw nnw nnw nnw ssw sse sse e n nne sw w nw ne ese calm calm ne sw sw s w Speed (knots) 15 16 17 9 0 11 15 16 3 12 10 2 2 2 2 2 15 3 9 2 2 3 3 0 0 0 2 3 2 15 Weather 2 81 2 2 2 2 2 2 3 80 3 2 1 2 3 20 50 3 2 2 3 2 1 3 3 2 2 1 3 3 Visibility 7 4 8 7 7 6 8 7 7 7 7 8 7 6 7 7 7 8 5 6 6 7 7 5 5 5 5 5 5 7 Screen (C) Dry Bulb 16.0 11.7 11.5 15.4 15.4 16.9 13.8 12.0 11.6 9.6 14.3 15.8 16.2 18.7 17.8 15.1 11.1 13.0 17.5 16.0 15.6 16.8 15.2 18.0 22.9 24.0 20.3 18.1 18.7 19.1 Wet Bulb 13.5 11.1 7.9 12.7 12.2 13.4 9.4 9.3 9.4 8.8 11.0 11.1 12.1 14.4 15.4 14.7 10.4 9.2 13.5 13.1 11.6 12.5 13.0 15.3 18.3 17.9 16.9 16.9 16.6 16.6 Max 18.4 14.9 16.4 19.4 20.1 19.2 18.4 17.0 15.6 15.1 17.4 17.9 20.4 21.5 19.8 16.9 15.3 15.7 21.0 22.4 22.5 18.6 21.0 25.5 28.8 29.1 24.1 22.5 24.6 22.0 Min 8.9 10.9 3.6 8.4 6.8 10.6 5.9 4.8 4.3 7.3 5.2 9.7 10.9 10.1 12.2 11.4 10.6 4.8 11.0 10.6 7.3 6.1 9.4 10.4 12.5 13.9 15.8 12.0 14.3 11.9 Ground Obs (Brixworth, 0700hrs) Grass Min 6.5 9.8 0.3 5.3 4.8 9.4 4.2 2.9 2.5 6.0 2.8 8.8 9.7 7.9 11.2 8.6 10.7 2.6 9.6 8.7 4.6 3.2 8.6 9.8 10.5 11.8 15.4 10.7 12.0 10.5 Conc. Min 10.3 11.0 5.2 10.3 9.2 11.8 7.2 6.5 6.6 8.2 6.5 10.5 11.9 11.6 12.4 11.7 11.3 7.0 11.6 11.0 9.7 8.3 10.5 12.4 14.3 14.4 16.9 13.1 14.3 12.3 Bare Earth Min 9.8 10.5 4.4 9.3 8.3 11.4 6.4 5.5 6.0 7.3 5.9 10.2 11.8 11.0 12.2 5.7 10.9 6.8 11.7 10.6 8.7 7.9 10.4 11.8 13.5 14.1 16.9 13.1 14.1 12.4 Soil Temps (Brixworth, 0700hrs) Surface 13.2 13.9 7.5 12.3 12.2 14.8 9.3 8.8 9.7 9.8 9.9 12.4 13.7 14.7 13.7 8.9 11.9 9.0 13.7 13.5 11.6 11.3 14.5 14.5 16.5 16.5 18.8 15.8 18.4 14.9 5cm 13.2 13.0 9.3 12.0 12.4 14.4 11.3 9.8 10.5 11.0 9.8 12.5 13.8 14.5 14.3 13.8 12.6 10.2 13.5 13.5 12.8 12.0 14.0 15.0 16.8 16.4 19.0 16.8 17.4 16.4 10cm 13.4 13.4 10.2 12.4 12.7 14.6 11.9 10.6 10.9 11.5 10.4 12.6 13.8 14.7 14.5 14.0 13.1 10.8 13.5 13.5 13.2 12.8 14.4 15.5 17.0 17.5 19.0 16.9 17.4 16.6 20cm 14.8 14.8 13.0 13.2 14.3 15.5 14.3 13.2 13.2 13.4 12.5 13.5 14.6 15.8 15.6 15.0 14.5 13.1 14.5 15.0 15.2 15.0 15.6 16.7 18.2 18.8 19.9 18.7 18.4 18.3 30cm 15.5 15.5 14.2 14.4 15.0 15.7 15.0 14.2 14.2 14.0 13.4 13.7 14.8 16.1 16.0 15.4 15.1 13.9 15.0 15.6 15.9 15.9 16.3 17.1 18.4 19.1 19.9 19.7 18.7 18.8 40cm 15.7 15.7 14.5 14.5 15.2 15.7 15.2 14.4 14.4 14.2 13.6 13.8 14.8 15.9 15.8 15.3 15.1 14.1 14.9 15.6 15.9 16.1 16.3 17.0 18.3 18.9 19.7 19.3 18.8 18.8 50cm 16.5 16.4 15.5 15.2 15.5 15.8 15.5 15.1 14.9 14.7 14.4 14.5 14.8 15.6 15.8 15.6 15.5 15.0 15.1 15.8 16.1 16.4 16.5 16.9 17.8 18.6 19.2 19.4 19.0 19.0 100cm 14.8 14.8 14.4 14.2 14.0 14.0 13.9 13.9 13.8 14.0 14.2 14.0 14.2 14.3 14.4 14.5 14.8 14.7 14.8 15.0 15.1 15.2 15.0 15.3 15.6 15.9 16.4 16.5 17.0 17.0 Ground (Brixworth, 0700hrs) Without snow 0 1 0 0 0 0 0 1 0 2 0 0 0 0 1 2 1 1 1 0 0 0 0 0 0 0 0 0 0 0 With snow _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ Snow depth _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ Ground (Pitsford, 0900hrs) Without snow 9 1 9 9 9 9 9 9 9 1 9 9 9 9 1 1 1 9 9 9 9 9 9 9 9 9 9 1 0 9 With snow _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ Snow depth _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ Concrete 0 2 0 0 0 0 0 0 0 2 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 1 0 0 Rainfall Total 1.6 0.6 _ _ _ _ 1.7 _ 2.7 tr _ _ _ _ 4.6 7.6 _ _ _ _ _ _ _ _ _ _ 0.7 0.4 tr Duration 0.5 1.5 _ _ _ _ 1.8 _ 1.3 _ _ _ _ _ 1.5 1.5 _ _ _ _ _ _ _ _ _ _ 0.8 _ 0.5 0.1 Acidity _ 6.3 _ _ _ _ 6.5 _ 6.4 _ _ _ _ _ 6.5 6.6 _ _ _ _ _ _ _ _ _ _ 6.6 _ _ Run of Wind Miles 163.3 143.74 172.89 29.15 46.64 130.24 103.49 87.78 75.48 115.37 74.31 30.97 36.6 52.31 42.3 132.83 117.97 33.33 68.91 108.55 98.53 70.85 38.31 41.42 60.08 96.32 67.57 83.8 174.59 103.31 Mean 8.8 7.8 9.4 1.6 2.5 7.1 5.6 4.8 4.1 6.2 4 1.7 2 2.8 2.3 7.2 6.4 1.8 3.7 5.9 5.3 3.8 2.1 2.2 3.3 5.2 3.7 4.5 9.5 5.6 Gust 29 32 24 27 18 30 34 34 22 29 18 <15 <15 <15 16 26 25 0 16 25 19 17 <15 <15 <15 <15 20 24 19 25 Sunshine 5.0 7.9 11.7 10.8 6.8 2.5 11.6 11.6 4.4 5.3 4.4 2.7 6.0 7.3 4.6 1.1 0.5 4.5 3.5 9.5 12.8 7.0 8.8 12.5 11.5 11.0 8.2 3.0 4.0 10.2 Statistics Saturated VP(Twb) 1.548 1.322 1.066 1.469 1.422 1.538 1.18 1.172 1.18 1.133 1.313 1.322 1.413 1.641 1.751 1.674 1.262 1.164 1.548 1.508 1.367 1.45 1.499 1.739 2.104 2.052 1.927 1.927 1.89 1.89 VP 1.377 1.281 0.822 1.285 1.204 1.299 0.881 0.988 1.03 1.079 1.088 1.002 1.133 1.347 1.587 1.647 1.214 0.906 1.275 1.31 1.094 1.157 1.349 1.554 1.788 1.633 1.694 1.845 1.746 1.719 Saturated VP 1.819 1.376 1.358 1.751 1.751 1.927 1.579 1.403 1.367 1.196 1.631 1.796 1.843 2.158 2.039 1.717 1.322 1.499 2.001 1.819 1.773 1.914 1.728 2.065 2.794 2.986 2.383 2.078 2.158 2.212 RH % 75.7 93.1 60.5 73.4 68.8 67.4 55.8 70.4 75.3 90.2 66.7 55.8 61.5 62.4 77.8 95.9 91.8 60.4 63.7 72 61.7 60.4 78.1 75.3 64 54.7 71.1 88.8 80.9 77.7 Dew Point 11.7 10.6 4.1 10.7 9.7 10.8 5.1 6.8 7.4 8.1 8.2 7 8.8 11.4 13.9 14.5 9.8 5.5 10.6 11 8.3 9.1 11.4 13.6 15.7 14.3 14.9 16.2 15.4 15.1 Pressure 1020.8 1012.9 1023.7 1023.7 1017.7 1011.7 1010.0 1014.0 1015.1 1015.1 1022.4 1020.6 1016.7 1014.2 1007.0 1001.8 1012.9 1026.8 1025.6 1018.9 1018.4 1017.0 1018.7 1019.7 1019.8 1013.1 1006.4 1009.6 1013.7 1014.3 Days with thunder _ _ _ _ _ _ _ _ _ _ _ _ _ _ 1 1 _ _ _ _ _ _ _ _ _ _ _ _ _ _ hail<0.5mm _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ hail>/=0.5mm _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ snow _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ fog _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ Commercial use of this data is not permitted without the prior written consent of the station manager, Pitsford Hall.