| 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) | 8.00 | 9.00 | 9.00 | 8.00 | 9.00 | 9.00 | 8.00 | 8.00 | 9.00 | 9.00 | 9.00 | 9.00 | 9.00 | 9.00 | 8.00 | 9.00 | 9.00 | 9.00 | 9.00 | 9.00 | 9.00 | 8.00 | 9.00 | 9.00 | 9.00 | 9.00 | 9.00 | 9.00 | 8.00 | 9.00 |
| Total Cloud (oktas) | 8 | 8 | 8 | 3 | 2 | 7 | 6 | 1 | 2 | 8 | 6 | 8 | 7 | 5 | 3 | 4 | 6 | 8 | 7 | 5 | 8 | 3 | 8 | 6 | 8 | 7 | 4 | 4 | 7 | 5 |
| Wind |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |
| Direction | nne | ne | nnw | sw | ene | nnw | nw | nnw | nw | n | n | n | nw | nw | nw | ne | w | s | w | nw | e | sw | n | se | s | ssw | w | ssw | sw | w |
| Speed (knots) | 7 | 1 | 9 | 1 | 1 | 6 | 8 | 12 | 5 | 4 | 2 | 7 | 5 | 14 | 11 | 5 | 7 | 7 | 7 | 6 | 7 | 14 | 10 | 10 | 5 | 8 | 10 | 12 | 8 | 3 |
| Weather | 10 | 10 | 61 | 1 | 2 | 10 | 2 | 5 | 0 | 1 | 1 | 1 | 3 | 3 | 3 | 2 | 2 | 20 | 1 | 1 | 61 | 2 | 2 | 1 | 3 | 3 | 1 | 3 | 3 | 3 |
| Visibility | 7 | 6 | 6 | 7 | 8 | 6 | 7 | 6 | 7 | 6 | 7 | 6 | 6 | 7 | 8 | 6 | 4 | 5 | 6 | 7 | 5 | 8 | 8 | 7 | 8 | 7 | 7 | 7 | 7 | 6 |
| Screen (C) |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |
| Dry Bulb | 13.1 | 14.5 | 13.1 | 13.4 | 16.1 | 15.1 | 13.0 | 16.4 | 21.0 | 16.9 | 15.5 | 12.1 | 13.6 | 13.6 | 12.8 | 14.1 | 15.5 | 14.4 | 15.9 | 16.0 | 11.8 | 16.0 | 15.0 | 18.3 | 16.0 | 16.4 | 16.4 | 17.9 | 16.6 | 17.5 |
| Wet Bulb | 11.8 | 13.3 | 13.0 | 11.8 | 12.1 | 13.1 | 11.4 | 14.3 | 15.2 | 14.1 | 12.3 | 10.2 | 10.1 | 10.4 | 9.6 | 10.9 | 10.9 | 12.9 | 11.4 | 12.0 | 11.4 | 13.5 | 10.8 | 14.0 | 13.8 | 13.0 | 12.4 | 14.4 | 13.8 | 13.8 |
| Max | 15.0 | 18.1 | 14.4 | 19.0 | 19.5 | 18.5 | 18.5 | 23.9 | 25.0 | 20.0 | 19.1 | 14.3 | 15.2 | 18.3 | 17.1 | 19.1 | 19.2 | 18.0 | 19.0 | 19.5 | 18.0 | 19.0 | 19.9 | 21.4 | 20.4 | 19.6 | 19.4 | 20.8 | 21.6 | 21.4 |
| Min | 11.6 | 11.1 | 12.0 | 9.8 | 9.0 | 9.0 | 8.6 | 12.4 | 12.9 | 13.8 | 9.4 | 9.6 | 8.2 | 7.3 | 7.0 | 6.5 | 8.0 | 10.4 | 11.6 | 9.0 | 11.3 | 11.5 | 10.9 | 10.4 | 12.7 | 8.9 | 10.9 | 15.0 | 10.5 | 9.5 |
| Black Bulb (Globe, C) | 15.6 | 20.4 | 13.5 | 24.9 | 32.4 | 24.4 | 21.9 | 26.6 | 35 | 22 | 25 | 17 | 22.4 | 25.1 | 24.4 | 25 | 26.4 | 16.2 | 27 | 23.9 | 12.5 | 21.4 | 19.4 | 30.1 | 19 | 24.4 | 27.9 | 25.5 | 22.8 | 29.3 |
| Grass & Concrete |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |
| State of Grass | 0 | 1 | 3 | 3 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 3 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 0 |
| State of Concrete | 0 | 0 | 2 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 2 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Concrete Min (C) | 10.4 | 9.8 | 11.8 | 8.1 | 7.6 | 8.4 | 7.5 | 11.5 | 13.0 | 13.0 | 8.5 | 9.0 | 7.1 | 5.6 | 5.5 | 5.2 | 7.0 | 5.3 | 9.4 | 7.6 | 10.1 | 12.1 | 8.2 | 9.7 | 12.9 | 7.6 | 9.0 | 13.4 | 9.0 | 8.0 |
| Evaporation |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   | |
| Piche (ml) | 0.8 | 0.9 | 0.6 | 3.3 | 3 | 2.2 | 2 | 3.6 | 4.7 | 5.1 | 4.1 | 2.8 | 3.6 | 3.5 | 3.6 | 3 | 3.5 | 4.1 | 4.5 | 3.5 | 1.2 | 5.9 | 3.7 | 4.2 | 4.2 | 3.3 | 2.6 | 3.4 | 4.7 | 3.1 |
| Pan (over interval, mm) | > | > | > | > | > | > | > | > | > | > | > | > | 38.48 | > | > | > | > | > | > | > | > | > | > | > | 40.56 | > | > | > | > | 18.00 |
| Rainfall |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |
| Total (mm) | 0.1 | 10.9 | 8.4 | 0.1 | _ | _ | tr | _ | _ | tr | 3.2 | 0.1 | _ | 1.3 | _ | _ | tr | 1.0 | _ | 1.9 | 8.9 | _ | _ | _ | tr | 4.0 | tr | _ | tr | _ |
| Duration (hrs) | 0.3 | 11.9 | 10.4 | _ | _ | _ | _ | _ | _ | _ | 4.2 | 0.1 | _ | 0.1 | _ | _ | _ | 0.7 | _ | 5.7 | 5.7 | _ | _ | _ | _ | 3.7 | _ | _ | 0.1 | _ |
| Intensity (mean over 24 hrs, mm/hr) | 0.3 | 0.9 | 0.8 | _ | _ | _ | _ | _ | _ | _ | 0.8 | 1.0 | _ | 13.0 | _ | _ | _ | 1.4 | _ | 0.3 | 1.6 | _ | _ | _ | _ | 1.1 | _ | _ | 0.0 | _ |
| Run of Wind |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   | |
| Miles (over 24 hrs) | 22.55 | 55.75 | 87.5 | 48.87 | 58.68 | 81.04 | 99.98 | 53.75 | 69.79 | 130.25 | 131.91 | 75.64 | 97.32 | 175.61 | 169.95 | 41.85 | 128.05 | 194.1 | 112.58 | 65.05 | 113.11 | 176.67 | 50.98 | 77.41 | 115.11 | 136.7 | 115.04 | 100.63 | 104.05 | 59.62 |
| Mean (mph) | 1.2 | 3 | 4.7 | 2.6 | 3.2 | 4.4 | 5.4 | 2.9 | 3.8 | 7.1 | 7.1 | 4.1 | 5.3 | 9.5 | 9.2 | 2.3 | 6.9 | 10.5 | 6.1 | 3.5 | 6.1 | 9.6 | 2.8 | 4.2 | 6.2 | 7.4 | 6.2 | 5.5 | 5.6 | 3.2 |
| Gust (mph) | <15 | <15 | 20 | <15 | 15 | 17 | 19 | 17 | 20 | 29 | 25 | 23 | 18 | 19 | 17 | 15 | 23 | 28 | 25 | 20 | 25 | 36 | 15 | 20 | 27 | 27 | 21 | 20 | 26 | 16 |
| Sunshine (hrs) | 0.0 | 0.0 | 0.1 | 8.9 | 10.0 | 2.6 | 5.9 | 10.0 | 9.9 | 10.9 | 6.3 | 7.3 | 6.0 | 9.3 | 10.1 | 8.3 | 9.0 | 1.0 | 11.7 | 7.8 | 0.0 | 10.4 | 11.5 | 8.5 | 10.6 | 7.8 | 4.3 | 11.0 | 8.7 | 11.5 |
| Humidity Statistics |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |
| Saturated |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |
| VP(Twb) | 1.385 | 1.528 | 1.499 | 1.385 | 1.413 | 1.508 | 1.349 | 1.631 | 1.728 | 1.61 | 1.431 | 1.245 | 1.237 | 1.262 | 1.196 | 1.305 | 1.305 | 1.489 | 1.349 | 1.403 | 1.349 | 1.548 | 1.296 | 1.599 | 1.579 | 1.499 | 1.441 | 1.641 | 1.579 | 1.579 |
| VP | 1.296 | 1.446 | 1.492 | 1.276 | 1.14 | 1.371 | 1.24 | 1.487 | 1.331 | 1.419 | 1.213 | 1.116 | 0.999 | 1.044 | 0.978 | 1.087 | 0.992 | 1.387 | 1.042 | 1.13 | 1.322 | 1.377 | 1.01 | 1.305 | 1.429 | 1.267 | 1.168 | 1.402 | 1.388 | 1.326 |
| Saturated |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |
| VP | 1.508 | 1.652 | 1.508 | 1.538 | 1.831 | 1.717 | 1.499 | 1.866 | 2.488 | 1.927 | 1.762 | 1.413 | 1.558 | 1.558 | 1.479 | 1.61 | 1.762 | 1.641 | 1.808 | 1.819 | 1.385 | 1.819 | 1.706 | 2.104 | 1.819 | 1.866 | 1.866 | 2.052 | 1.89 | 2.001 |
| Rel. Humidity | 85.9 | 87.5 | 98.9 | 83 | 62.3 | 79.8 | 82.7 | 79.7 | 53.5 | 73.6 | 68.8 | 79 | 64.1 | 67 | 66.1 | 67.5 | 56.3 | 84.5 | 57.6 | 62.1 | 95.5 | 75.7 | 59.2 | 62 | 78.6 | 67.9 | 62.6 | 68.3 | 73.4 | 66.3 |
|   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |
| Dew Point (C) | 10.8 | 12.5 | 12.9 | 10.6 | 8.9 | 11.6 | 10.1 | 12.9 | 11.2 | 12.2 | 9.8 | 8.6 | 7 | 7.6 | 6.6 | 8.2 | 6.8 | 11.8 | 7.6 | 8.8 | 11.1 | 11.7 | 7.1 | 10.9 | 12.3 | 10.5 | 9.2 | 12 | 11.8 | 11.1 |
| Pressure (mb) | 1015.9 | 1014.5 | 1011.2 | 1016.8 | 1016.9 | 1016.5 | 1019.4 | 1023.7 | 1025.8 | 1024.9 | 1024.1 | 1018.9 | 1017.5 | 1015.8 | 1011.7 | 1012.1 | 1011.9 | 1010.0 | 1006.9 | 1016.4 | 1017.4 | 1006.2 | 1019.5 | 1018.7 | 1012.5 | 1018.3 | 1017.1 | 1016.1 | 1015.5 | 1020.1 |
| Days with |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |
| thunder | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ |
| hail<5mm | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ |
| hail>/=5mm | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ |
| snow | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ |
| fog | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ |
| gales | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ |