| 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 |
| 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 | 9.00 | 9.00 | 9.00 | 9.00 | 9.00 | 9.00 |
| Total Cloud (oktas) | 8 | 8 | 8 | 8 | 8 | 8 | 6 | 8 | 1 | 8 | 2 | 1 | 6 | 3 | 8 | 8 | 8 | 8 | 2 | 5 | 8 | 5 | 8 | 7 | 0 | 8 | 6 | 9 | 9 | 8 |
| Wind |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |
| Direction | n | nnw | ne | e | nnw | n | ssw | s | ssw | ssw | sw | w | sw | s | ssw | n | s | nw | nw | nw | nnw | nnw | s | n | nnw | wnw | ssw | calm | calm | n |
| Speed (knots) | 9 | 16 | 9 | 5 | 11 | 1 | 6 | 12 | 12 | 19 | 17 | 6 | 8 | 6 | 9 | 9 | 6 | 11 | 8 | 13 | 20 | 15 | 16 | 16 | 19 | 9 | 14 | 0 | 0 | 15 |
| Weather | 2 | 25 | 1 | 1 | 1 | 10 | 1 | 81 | 2 | 2 | 25 | 3 | 3 | 3 | 2 | 51 | 3 | 3 | 1 | 3 | 2 | 2 | 60 | 25 | 0 | 20 | 1 | 45 | 45 | 2 |
| Visibility | 6 | 7 | 5 | 4 | 5 | 5 | 7 | 8 | 8 | 7 | 7 | 7 | 6 | 7 | 8 | 5 | 5 | 5 | 8 | 7 | 7 | 8 | 5 | 6 | 8 | 6 | 7 | 2 | 3 | 6 |
| Screen (C) |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |
| Dry Bulb | 4.6 | 7.9 | 8.9 | 9.6 | 9.5 | 8.6 | 9.4 | 9.9 | 5.0 | 7.4 | 7.9 | 5.5 | 5.5 | 10.6 | 11.6 | 9.6 | 4.0 | 8.5 | 8.1 | 11.0 | 7.5 | 4.0 | 0.2 | 3.9 | 2.5 | 5.6 | 7.9 | 1.9 | -0.6 | 2.6 |
| Wet Bulb | 4.1 | 7.6 | 8.5 | 9.6 | 9.2 | 8.6 | 8.8 | 9.5 | 4.1 | 6.1 | 6.5 | 4.7 | 5.0 | 10.0 | 10.4 | 9.4 | 3.5 | 8.5 | 6.1 | 9.5 | 5.0 | 2.1 | 0.0 | 3.5 | 1.6 | 5.1 | 7.0 | 1.8 | -0.6 | 2.2 |
| Max | 8.4 | 9.0 | 10.1 | 12.9 | 9.9 | 10.1 | 11.6 | 13.0 | 12.0 | 7.9 | 10.1 | 11.0 | 11.4 | 13.2 | 14.4 | 10.9 | 10.0 | 11.0 | 12.0 | 11.5 | 8.2 | 5.4 | 7.5 | 6.9 | 6.3 | 9.5 | 10.5 | 3.9 | 2.6 | 3.4 |
| Min | 1.1 | 4.5 | 7.2 | 8.1 | 8.8 | 7.9 | 7.4 | 5.4 | 3.7 | 4.6 | 4.6 | 4.6 | 3.3 | 5.0 | 9.1 | 9.3 | 2.4 | 3.5 | 6.1 | 7.6 | 7.0 | 1.0 | -2.5 | 0.0 | 1.0 | 0.1 | 5.1 | 1.6 | -1.5 | -1.0 |
| Black Bulb (Globe, C) | 4.9 | 7.8 | 8.9 | 10 | 9.5 | 8.9 | 9.6 | 6.2 | 5.1 | 7 | 7.2 | 5.2 | 4.8 | 10.4 | 12.3 | 10.1 | 3.6 | 8.9 | 8.5 | 12 | 7.6 | 4.3 | 0.3 | 3.5 | 1.9 | 5.4 | 7.5 | 1.8 | 0 | 2.5 |
| Grass & Concrete |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |
| State of Grass | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 1 | 3 | 3 | 3 | 1 | 1 | 0 | 0 | 5 | 3 | 1 | 3 | 1 | 2 | 2 | 4 |
| State of Concrete | 1 | 2 | 1 | 1 | 1 | 1 | 1 | 2 | 1 | 0 | 1 | 0 | 1 | 1 | 0 | 0 | 1 | 1 | 1 | 0 | 0 | 0 | 3 | 1 | 0 | 1 | 0 | 1 | 1 | 0 |
| Concrete Min (C) | -1.9 | 2.6 | 5.0 | 7.0 | 4.9 | 6.0 | 6.0 | 3.3 | 1.8 | 2.5 | 3.6 | 1.,9 | 1.0 | 3.2 | 7.1 | 8.5 | 0.9 | 2.6 | 4.5 | _ | 5.1 | -1.1 | -4.8 | -1.0 | -1.3 | -3.0 | _ | 0.7 | -1.4 | -1.1 |
| Evaporation |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |
| Piche (ml) | 0.6 | 0.1 | 0.6 | 0.3 | 0.3 | 0.3 | 2.2 | 2.1 | 3 | 1.1 | 2.5 | 0.8 | 0.6 | 1.5 | 0.7 | 0.3 | 0.8 | 1.4 | 2.2 | 4.5 | 3.8 | > | 3.9 | 1.7 | 1.4 | 0.9 | 1.6 | > | 0.5 | 0.6 |
| Pan (over interval, mm) | > | > | > | > | > | > | 1.52 | > | > | > | > | > | > | > | > | > | > | > | > | > | > | > | > | > | > | > | > | > | > | 4.50 |
| Rainfall |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |
| Total (mm) | 20.0 | 1.1 | 1.5 | 0.1 | 1.6 | 0.2 | 3.0 | 5.0 | 16.5 | 8.9 | 0.1 | _ | 2.6 | tr | 0.1 | 0.4 | 1.2 | 0.1 | _ | tr | _ | 0.9 | 5.7 | 0.1 | tr | _ | 1.1 | _ | 0.1 | 2.3 |
| Duration (hrs) | 9.8 | 0.7 | 5.1 | 0.8 | 2.6 | 0.2 | 0.5 | 2.9 | 2.5 | 3.7 | _ | _ | 4.2 | _ | 1.2 | 1.2 | 1.5 | 0.1 | _ | 0.1 | _ | 1.7 | 2.0 | 0.1 | _ | _ | 1.0 | _ | _ | 4.1 |
| Intensity (mean over 24 hrs, mm/hr) | 2.0 | 1.6 | 0.3 | 0.1 | 0.6 | 1.0 | 6.0 | 1.7 | 6.6 | 2.4 | _ | _ | 0.6 | _ | 0.1 | 0.3 | 0.8 | 1.0 | _ | 0.0 | _ | 0.5 | 2.9 | 1.0 | _ | _ | 1.1 | _ | _ | 0.6 |
| Run of Wind |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |
| Miles (over 24 hrs) | 172.08 | 99.72 | 133.13 | 97.67 | 34.77 | 71.03 | 188.8 | 199.67 | 272.06 | 201.6 | 151.9 | 88.1 | 132.21 | 118.81 | 85.7 | 45.68 | 164.72 | 151.22 | 176.56 | 238.11 | 199.39 | 162.05 | 85.08 | 299.21 | 135.36 | 109.34 | 176.9 | 7.79 | 122.86 | 68.92 |
| Mean (mph) | 9.3 | 5.4 | 7.2 | 5.3 | 1.9 | 3.8 | 10.2 | 10.8 | 14.7 | 10.9 | 8.2 | 4.8 | 7.2 | 6.4 | 4.6 | 2.5 | 8.9 | 8.2 | 9.6 | 12.9 | 10.8 | 8.8 | 4.6 | 16.2 | 7.3 | 5.9 | 9.6 | 0.4 | 6.7 | 3.7 |
| Gust (mph) | 35 | 24 | 30 | 19 | 22 | 18 | 26 | 34 | 44 | 29 | 32 | 19 | 19 | 19 | 21 | <15 | 27 | 27 | 31 | 46 | 43 | 32 | 35 | 41 | 32 | 22 | 29 | <15 | 22 | 29 |
| Sunshine (hrs) | 0.0 | 0.0 | 0.0 | 2.2 | 0.0 | 0.0 | 3.5 | 2.3 | 2.1 | 0.0 | 3.9 | 3.8 | 0.2 | 0.6 | 1.2 | 0.0 | 0.0 | 3.6 | 0.7 | 0.5 | 1.0 | 3.1 | 2.0 | 1.5 | 5.1 | 0.1 | 1.6 | 0.0 | 0.0 | 0.0 |
| Humidity Statistics |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |
| Saturated |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |
| VP(Twb) | 0.819 | 1.044 | 1.11 | 1.196 | 1.164 | 1.118 | 1.133 | 1.188 | 0.819 | 0.942 | 0.968 | 0.855 | 0.873 | 1.229 | 1.262 | 1.18 | 0.785 | 1.11 | 0.942 | 1.188 | 0.873 | 0.711 | 0.611 | 0.785 | 0.686 | 0.879 | 1.002 | 0.696 | 0.585 | 0.716 |
| VP | 0.785 | 1.024 | 1.083 | 1.196 | 1.144 | 1.118 | 1.092 | 1.161 | 0.758 | 0.854 | 0.873 | 0.801 | 0.839 | 1.188 | 1.18 | 1.166 | 0.751 | 1.11 | 0.807 | 1.086 | 0.704 | 0.583 | 0.598 | 0.758 | 0.625 | 0.845 | 0.941 | 0.689 | 0.585 | 0.689 |
| Saturated |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |
| VP | 0.849 | 1.066 | 1.141 | 1.196 | 1.188 | 1.118 | 1.18 | 1.22 | 0.873 | 1.03 | 1.066 | 0.904 | 0.904 | 1.279 | 1.367 | 1.196 | 0.814 | 1.11 | 1.081 | 1.313 | 1.037 | 0.814 | 0.62 | 0.808 | 0.732 | 0.91 | 1.066 | 0.701 | 0.585 | 0.737 |
| Rel. Humidity | 92.5 | 96.1 | 94.9 | 100 | 96.3 | 100 | 92.5 | 95.2 | 86.8 | 82.9 | 81.9 | 88.6 | 92.8 | 92.9 | 86.3 | 97.5 | 92.3 | 100 | 74.7 | 82.7 | 67.9 | 71.6 | 96.5 | 93.8 | 85.4 | 92.9 | 88.3 | 98.3 | 100 | 93.5 |
|   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |
| Dew Point (C) | 3.5 | 7.3 | 8.1 | 9.6 | 8.9 | 8.6 | 8.3 | 9.2 | 3 | 4.7 | 5 | 3.8 | 4.4 | 9.5 | 9.4 | 9.2 | 2.9 | 8.5 | 3.9 | 8.2 | 2 | -0.6 | -0.3 | 3 | 0.3 | 4.5 | 6.1 | 1.7 | -0.6 | 1.7 |
| Pressure (mb) | 1010.4 | 1014.4 | 1017.5 | 1019.6 | 1019.7 | 1014.3 | 1005.0 | 1007.0 | 1008.7 | 1003.5 | 1002.0 | 1014.9 | 1022.8 | 1023.5 | 1025.1 | 1029.3 | 1033.2 | 1014.5 | 1020.4 | 1017.1 | 1013.9 | 1017.1 | 997.7 | 996.7 | 1021.8 | 1026.8 | 1013.5 | 1000.3 | 995.6 | 995.9 |
| Days with |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |
| thunder | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ |
| hail<5mm | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ |
| hail>/=5mm | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ |
| snow | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | 1 | _ | _ | _ | _ | _ | _ | _ |
| fog | _ | _ | _ | 1 | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | 1 | 1 | _ |
| gales | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ |