| Observations at Pitsford Hall | 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 of Observations (GMT) | 9.00 | 9.00 | 9.00 | 9.00 | 9.00 | 9.00 | 9.00 | 9.00 | 9.00 | 9.00 | 9.00 | 9.00 | 9.00 | 9.00 | 9.00 | 9.00 | 9.00 | 9.00 | 9.00 | 9.00 | 9.00 | 9.00 | 9.00 | 9.00 | 8.00 | 9.00 | 9.00 | 9.00 | 8.00 | 8.00 | 9.00 |
| Total Cloud (oktas) | 3 | 2 | 0 | 4 | 3 | 8 | 0 | 8 | 2 | 8 | 3 | 8 | 5 | 6 | 6 | 8 | 7 | 7 | 2 | 7 | 1 | 8 | 8 | 8 | 7 | 8 | 1 | 8 | 0 | 5 | 9 |
| Wind |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |
| Direction | nw | w | wsw | nnw | wsw | w | wnw | ssw | ssw | s | s | wnw | w | w | sse | n | n | nnw | nw | w | nw | nnw | w | nne | nw | calm | n | sse | ssw | ssw | s |
| Speed (knots) | 17 | 2 | 5 | 10 | 3 | 12 | 7 | 15 | 10 | 12 | 7 | 28 | 19 | 5 | 2 | 24 | 10 | 10 | 12 | 6 | 20 | 23 | 8 | 1 | 11 | 0 | 4 | 14 | 16 | 6 | 3 |
| Weather | 2 | 2 | 1 | 22 | 1 | 2 | 25 | 2 | 2 | 21 | 3 | 3 | 1 | 1 | 10 | 61 | 1 | 1 | 0 | 1 | 2 | 22 | 22 | 26 | 3 | 10 | 2 | 54 | 0 | 3 | 45 |
| Visibility | 8 | 7 | 7 | 7 | 6 | 6 | 8 | 7 | 7 | 7 | 8 | 6 | 7 | 6 | 6 | 7 | 6 | 6 | 6 | 6 | 8 | 8 | 8 | 7 | 8 | 5 | 7 | 7 | 7 | 7 | 2 |
| Screen (C) |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |
| Dry Bulb | 8.3 | 9.7 | 2.0 | 2.5 | 1.6 | 8.6 | 5.9 | 8.1 | 5.4 | 5.8 | 5.6 | 5.4 | 6.9 | 6.0 | 10.1 | 6.4 | 5.3 | 3.4 | 4.2 | 5.2 | 5.4 | 2.6 | 1.0 | 1.4 | 0.7 | 5.1 | 5.6 | 6.2 | 7.0 | 6.8 | 5.6 |
| Wet Bulb | 5.9 | 7.0 | 1.6 | 1.1 | 0.4 | 6.8 | 4.4 | 7.0 | 5.0 | 5.4 | 4.0 | 4.4 | 5.3 | 4.8 | 9.6 | 6.0 | 3.8 | 1.9 | 2.4 | 4.1 | 2.9 | 1.7 | 0.1 | 0.4 | -1.6 | 5.0 | 4.6 | 5.6 | 5.5 | 6.0 | 5.6 |
| Max | 12.2 | 12.0 | 8.8 | 8.8 | 9.4 | 12.7 | 11.0 | 10.6 | 9.6 | 8.0 | 13.0 | 10.0 | 10.1 | 11.6 | 12.7 | 7.8 | 7.8 | 7.1 | 7.7 | 9.5 | 8.3 | 6.0 | 5.5 | 5.0 | 6.1 | 10.3 | 10.5 | 11.1 | 10.4 | 13.0 | 13.6 |
| Min | 3.1 | 7.4 | 1.7 | -0.5 | -2.6 | 1.5 | 5.1 | 3.6 | 3.1 | 2.5 | 4.0 | 4.0 | 4.1 | 4.1 | 5.5 | 6.0 | 3.4 | 0.4 | 0.7 | 1.1 | 2.4 | 1.6 | -1.6 | -0.4 | -0.9 | 0.6 | 1.2 | 3.8 | 3.0 | 5.1 | 2.6 |
| Black Bulb (Globe, C) | 9.5 | 16.2 | 8.2 | 3 | 6.5 | 11.3 | 8.5 | 9 | 7.1 | 5.8 | 7.1 | 7.9 | 10.6 | 6.8 | 12.1 | 6.1 | 9 | 4.4 | 7.6 | 6.6 | 8.3 | 3.5 | 1.4 | 5 | 1.8 | 8.4 | 12 | 6.5 | 11.1 | 9 | 3.8 |
| Grass & Concrete |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |
| State of Grass | 0 | 0 | 0 | 0 | 6 | 0 | 3 | 0 | 3 | 3 | 0 | 0 | 0 | 0 | 1 | 3 | 0 | 0 | 0 | 0 | 0 | 0 | 9 | 4 | 0 | 3 | 3 | 3 | 1 | 3 | 4 |
| State of Concrete | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 1 | 2 | 0 | 0 | 0 | 0 | 0 | 2 | 0 | 0 | 0 | 0 | 0 | 0 | 3 | 2 | 0 | 1 | 1 | 1 | 1 | 1 | 0 |
| Concrete Min (C) | 2.0 | 5.6 | -0.6 | -2.9 | -5.4 | -1.2 | 3.6 | 1.9 | 1.0 | -0.5 | 1.0 | 1.4 | 1.1 | 2.5 | 4.6 | 5.1 | 1.3 | -1.9 | -1.4 | -0.3 | 0.6 | 0.1 | -4.1 | -2.7 | -3.0 | -0.6 | -0.6 | 2.1 | 0.4 | 3.0 | 0.0 |
| Evaporation |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |
| Piche (ml) | 3.1 | 1.7 | 1 | 1.5 | 1.1 | 1.9 | 1.5 | 1.9 | 2.5 | 1 | 2.8 | 4 | 2 | 1 | 0.2 | 0.6 | 1.1 | 1.8 | 1.6 | 1.7 | 2.4 | > | 1.1 | 0.7 | 1.5 | 0.2 | 1.6 | 1.6 | 3 | 1.8 | _ |
| Pan (over interval, mm) | > | > | > | > | > | > | > | > | > | > | > | > | > | > | 77.91 | > | > | > | > | > | > | > | > | > | > | > | > | > | > | > | 30.80 |
| Rainfall |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |
| Total (mm) | _ | _ | tr | 0.1 | _ | 0.1 | tr | 3.9 | 4.1 | 8.5 | 4.4 | _ | _ | tr | 25.7 | 0.4 | tr | _ | _ | 2.2 | 0.3 | 3.0 | 0.2 | tr | 1.1 | 6.9 | 1.6 | 2.5 | 1.3 | _ | _ |
| Duration (hrs) | _ | _ | _ | 0.1 | _ | 0.1 | _ | 2.5 | 3.5 | 7.5 | 3.0 | _ | _ | _ | 17.5 | 1.6 | _ | _ | _ | 4.0 | 0.3 | 4.8 | 0.3 | _ | 1.1 | 6.0 | 2.0 | 2.1 | 2.8 | _ | _ |
| Intensity (mean over 24 hrs, mm/hr) | _ | _ | _ | 1.0 | _ | 1.0 | _ | 1.6 | 1.2 | 1.1 | 1.5 | _ | _ | _ | 1.5 | 0.3 | _ | _ | _ | 0.6 | 1.0 | 0.6 | 0.7 | _ | 1.0 | 1.2 | 0.8 | 1.2 | 0.5 | _ | _ |
| Run of Wind |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |
| Miles (over 24 hrs) | 234.03 | 138.37 | 146.4 | 121.56 | 119.04 | 204.19 | 189.5 | 248.69 | 223.05 | 245.77 | 214.1 | 301.72 | 42.45 | 88.89 | 137.23 | 154.64 | 97.12 | 142.53 | 106.27 | 294.75 | 342.66 | 167.84 | 124.38 | 118.69 | 110.95 | 38.58 | 153.21 | 203.68 | 316.2 | 83.05 | 169.05 |
| Mean (mph) | 12.7 | 7.5 | 7.9 | 6.6 | 6.4 | 11.1 | 10.3 | 13.5 | 12.1 | 13.3 | 11.6 | 16.3 | 2.3 | 4.8 | 7.4 | 8.4 | 5.3 | 7.7 | 5.8 | 16 | 18.6 | 9.1 | 6.7 | 6.4 | 6 | 2.1 | 8.3 | 11 | 17.1 | 4.5 | 9.2 |
| Gust (mph) | 50 | 29 | 29 | 33 | 23 | 30 | 28 | 34 | 45 | 47 | 54 | 54 | 26 | <15 | 43 | 47 | 24 | 25 | 28 | 60 | 56 | 52 | 33 | 26 | 31 | 20 | 33 | 35 | 40 | 17 | 29 |
| Sunshine (hrs) | 6.6 | 5.2 | 7.0 | 8.8 | 6.5 | 4.7 | 7.6 | 0.0 | 5.5 | 1.8 | 4.5 | 5.0 | 1.5 | 2.3 | 0.1 | 0.2 | 2.0 | 1.2 | 7.1 | 0.0 | 7.5 | 6.0 | 2.9 | 1.7 | 3.1 | 1.4 | 8.6 | 1.9 | 2.4 | 7.6 | 1.2 |
| Humidity Statistics |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |
| Saturated |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |
| VP(Twb) | 0.929 | 1.002 | 0.686 | 0.662 | 0.629 | 0.989 | 0.837 | 1.002 | 0.873 | 0.897 | 0.814 | 0.837 | 0.891 | 0.861 | 1.196 | 0.936 | 0.802 | 0.701 | 0.726 | 0.819 | 0.753 | 0.691 | 0.615 | 0.629 | 0.543 | 0.873 | 0.849 | 0.91 | 0.904 | 0.936 | 0.91 |
| VP | 0.766 | 0.819 | 0.659 | 0.568 | 0.548 | 0.867 | 0.736 | 0.927 | 0.846 | 0.87 | 0.706 | 0.769 | 0.783 | 0.78 | 1.162 | 0.909 | 0.701 | 0.6 | 0.605 | 0.745 | 0.584 | 0.63 | 0.554 | 0.562 | 0.389 | 0.866 | 0.781 | 0.869 | 0.802 | 0.882 | 0.91 |
| Saturated |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |
| VP | 1.095 | 1.204 | 0.706 | 0.732 | 0.686 | 1.118 | 0.929 | 1.081 | 0.897 | 0.923 | 0.91 | 0.897 | 0.995 | 0.936 | 1.237 | 0.962 | 0.891 | 0.78 | 0.825 | 0.885 | 0.897 | 0.737 | 0.657 | 0.676 | 0.643 | 0.879 | 0.91 | 0.949 | 1.002 | 0.989 | 0.91 |
| Rel. Humidity | 70 | 68 | 93.3 | 77.6 | 79.9 | 77.5 | 79.2 | 85.8 | 94.3 | 94.3 | 77.6 | 85.7 | 78.7 | 83.3 | 93.9 | 94.5 | 78.7 | 76.9 | 73.3 | 84.2 | 65.1 | 85.5 | 84.3 | 83.1 | 60.5 | 98.5 | 85.8 | 91.6 | 80 | 89.2 | 100 |
|   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |
| Dew Point (C) | 3.1 | 4.1 | 1 | -1 | -1.5 | 4.9 | 2.6 | 5.9 | 4.6 | 5 | 2 | 3.2 | 3.5 | 3.4 | 9.2 | 5.6 | 1.9 | -0.2 | -0.1 | 2.8 | -0.6 | 0.4 | -1.3 | -1.1 | -6 | 4.9 | 3.4 | 4.9 | 3.8 | 5.2 | 5.6 |
| Pressure (mb) | 1007.3 | 1009.1 | 1011.3 | 1024.6 | 1035.9 | 1022.6 | 1010.0 | 1003.7 | 995.8 | 965.8 | 985.8 | 1007.0 | 1010.9 | 1011.8 | 1006.7 | 999.5 | 1019.7 | 1021.4 | 1023.5 | 1018.2 | 988.5 | 1000.1 | 997.4 | 1000.2 | 1008.4 | 999.8 | 1000.0 | 994.8 | 1006.4 | 996.1 | 1008.1 |
| Days with |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |
| thunder | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ |
| hail<5mm | _ | _ | _ | 1 | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | 1 | 1 | _ | _ | _ | _ | _ | _ | _ | _ |
| hail>/=5mm | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ |
| snow | _ | _ | _ | 1 | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | 1 | 1 | 1 | _ | _ | _ | _ | _ | _ | _ |
| fog | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | 1 |
| gales | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ |