| 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) | 7.00 | 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 | 9.00 | 9.00 | 9.00 | 9.00 | 9.00 | 9.00 | 9.00 | 9.00 | 9.00 | 9.00 |
| Total Cloud (oktas) | 1 | 3 | 6 | 8 | 8 | 8 | 8 | 8 | 8 | 4 | 8 | 8 | 7 | 8 | 8 | 8 | 8 | 2 | 6 | 5 | 2 | 7 | 7 | 5 | 3 | 7 | 9 | 7 | 1 | 7 |
| Wind |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |
| Direction | sw | wsw | s | s | se | sse | wnw | sw | sse | s | ssw | nw | nw | ene | ese | e | e | e | wsw | sse | calm | n | n | ne | e | e | s | sw | wnw | sw |
| Speed (knots) | 7 | 8 | 7 | 10 | 10 | 6 | 10 | 1 | 10 | 5 | 5 | 3 | 1 | 3 | 3 | 4 | 4 | 4 | 1 | 2 | 0 | 10 | 10 | 5 | 5 | 4 | 3 | 1 | 2 | 9 |
| Weather | 2 | 1 | 1 | 20 | 63 | 20 | 64 | 1 | 50 | 1 | 51 | 3 | 10 | 10 | 2 | 1 | 1 | 1 | 1 | 1 | 10 | 2 | 3 | 1 | 1 | 11 | 45 | 1 | 1 | 1 |
| Visibility | 7 | 8 | 6 | 4 | 5 | 7 | 6 | 6 | 7 | 7 | 5 | 6 | 5 | 5 | 7 | 6 | 5 | 6 | 6 | 5 | 5 | 5 | 5 | 7 | 7 | 4 | 2 | 7 | 7 | 6 |
| Screen (C) |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |
| Dry Bulb | 11.5 | 13.6 | 12.9 | 13.0 | 13.8 | 13.9 | 13.4 | 15.0 | 13.8 | 16.6 | 13.9 | 13.1 | 12.6 | 12.9 | 14.7 | 12.7 | 12.5 | 14.5 | 14.2 | 13.2 | 10.6 | 15.5 | 12.5 | 15.4 | 15.9 | 12.0 | 10.0 | 11.2 | 11.8 | 13.4 |
| Wet Bulb | 11.2 | 12.8 | 11.2 | 12.4 | 13.5 | 13.4 | 13.0 | 13.8 | 13.5 | 14.8 | 13.5 | 12.1 | 12.5 | 12.7 | 11.4 | 10.8 | 10.6 | 12.1 | 11.9 | 10.9 | 10.0 | 14.3 | 11.6 | 13.5 | 13.8 | 11.8 | 10.0 | 10.4 | 10.3 | 11.8 |
| Max | 19.5 | 17.3 | 16.0 | 15.6 | 15.6 | 15.7 | 17.5 | 17.0 | 17.8 | 20.2 | 18.7 | 15.2 | 19.4 | 18.7 | 18.0 | 14.9 | 16.1 | 18.9 | 19.7 | 19.9 | 19.2 | 17.4 | 15.5 | 18.8 | 18.4 | 19.0 | 18.0 | 16.4 | 15.5 | 15.5 |
| Min | 9.9 | 11.3 | 9.3 | 11.2 | 11.8 | 11.6 | 12.8 | 12.5 | 11.4 | 11.3 | 13.3 | 10.5 | 9.9 | 11.1 | 9.4 | 9.2 | 10.3 | 7.9 | 8.9 | 8.6 | 7.8 | 10.4 | 10.9 | 10.6 | 12.0 | 8.4 | 5.2 | 5.6 | 6.4 | 8.1 |
| Black Bulb (Globe, C) | 11.4 | 21.3 | 16.1 | 14.4 | 14.1 | 14.9 | 15 | 18.5 | 14.7 | 20.4 | 20.3 | 15 | 16.1 | 13.4 | 17.6 | 16.6 | 14.1 | 19.2 | 18.5 | 17 | 14.2 | 19.2 | 16 | 18.4 | 20.5 | 16.5 | _ | _ | 17.3 | 14.9 |
| Grass & Concrete |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |
| State of Grass | 3 | 3 | 3 | 2 | 3 | 3 | 3 | 3 | 3 | 0 | 3 | 1 | 3 | 2 | 0 | 0 | 0 | 1 | 0 | 1 | 1 | 0 | 0 | 0 | 0 | 2 | 2 | 2 | 1 | 1 |
| State of Concrete | 0 | 0 | 0 | 2 | 2 | 1 | 1 | 0 | 1 | 0 | 2 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Concrete Min (C) | 8.6 | 9.6 | 6.8 | 9.5 | 10.9 | 10.4 | 11.8 | 11.8 | 10.6 | 9.1 | 13.1 | 9.2 | 8.5 | 10.6 | 8.2 | 7.8 | 9.4 | 6.1 | 7.6 | 6.5 | 5.6 | 7.6 | 9.6 | 9.1 | 10.0 | 6.1 | 3.8 | 4.2 | 5.0 | 9.0 |
| Evaporation |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |
| Piche (ml) | 3 | 2 | 3 | 1.1 | 0.2 | 0.6 | 1.1 | 2.4 | 0.7 | 3.8 | 2.2 | 0.4 | 2.3 | 2.2 | 1.8 | 1.7 | 1.1 | 1.8 | 2.5 | 2.6 | 2.4 | 1.4 | 2.2 | 2.3 | 1.5 | > | > | 5.5 | 2.4 | 1.9 |
| Pan (over interval, mm) | > | > | > | > | 2.57 | > | > | > | > | > | > | > | > | > | > | > | > | > | 15.85 | > | > | > | > | > | > | > | > | > | > | 15.55 |
| Rainfall |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |
| Total (mm) | 10.1 | 6.0 | 2.0 | 6.5 | 20.4 | 32.7 | 2.1 | 4.6 | 1.4 | 0.2 | 0.4 | 4.6 | 0.1 | _ | _ | _ | _ | _ | _ | _ | _ | tr | 0.2 | _ | _ | _ | _ | _ | 0.3 | 2.8 |
| Duration (hrs) | 7.0 | 0.9 | 2.0 | 7.4 | 10.3 | 10.1 | 1.2 | 6.6 | 2.5 | _ | 0.2 | 2.9 | 1.2 | _ | _ | _ | _ | _ | _ | _ | _ | _ | 0.5 | _ | _ | _ | _ | _ | 3.6 | 1.8 |
| Intensity (mean over 24 hrs, mm/hr) | 1.4 | 6.7 | 1.0 | 0.9 | 2.0 | 3.2 | 1.8 | 0.7 | 0.6 | _ | 2.0 | 1.6 | 0.1 | _ | _ | _ | _ | _ | _ | _ | _ | _ | 0.4 | _ | _ | _ | _ | _ | 0.1 | 1.6 |
| Run of Wind |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |
| Miles (over 24 hrs) | 156.9 | 125.08 | 188.92 | 61.43 | 78.04 | 96.12 | 82.68 | 65.79 | 110.08 | 89.72 | 140.85 | 28.26 | 39.99 | 53.53 | 36.56 | 17.05 | 25.95 | 30.07 | 19.47 | 28.07 | 47.26 | 115.41 | 127.9 | 98.3 | 73.18 | 45.97 | 45.47 | 97.74 | 124.36 | 148.77 |
| Mean (mph) | 8.5 | 6.8 | 10.2 | 3.3 | 4.2 | 5.2 | 4.5 | 3.6 | 6 | 4.9 | 7.6 | 1.5 | 2.2 | 2.9 | 2 | 0.9 | 1.4 | 1.6 | 1.1 | 1.5 | 2.6 | 6.3 | 6.9 | 5.3 | 4 | 2.5 | 2.5 | 5.3 | 6.7 | 8.1 |
| Gust (mph) | 26 | 22 | 29 | 16 | 18 | 18 | 19 | 17 | 21 | 28 | 18 | <15 | <15 | <15 | <15 | <15 | <15 | <15 | <15 | <15 | 17 | 23 | 26 | 24 | 18 | 15 | <15 | 17 | 25 | 35 |
| Sunshine (hrs) | 5.5 | 5.1 | 4.4 | 3.0 | 0.1 | 0.0 | 3.0 | 0.8 | 0.0 | 4.5 | 5.0 | 0.0 | 6.5 | 5.5 | 3.4 | 0.0 | 0.1 | 3.5 | 6.3 | 8.1 | 7.5 | 3.0 | 2.5 | 3.5 | 4.0 | 7.8 | 6.1 | 2.7 | 3.7 | 1.3 |
| Humidity Statistics |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |
| Saturated |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |
| VP(Twb) | 1.331 | 1.479 | 1.331 | 1.441 | 1.548 | 1.538 | 1.499 | 1.579 | 1.548 | 1.684 | 1.548 | 1.413 | 1.45 | 1.469 | 1.349 | 1.296 | 1.279 | 1.413 | 1.394 | 1.305 | 1.229 | 1.631 | 1.367 | 1.548 | 1.579 | 1.385 | 1.229 | 1.262 | 1.253 | 1.385 |
| VP | 1.311 | 1.424 | 1.215 | 1.4 | 1.528 | 1.504 | 1.472 | 1.497 | 1.528 | 1.561 | 1.521 | 1.345 | 1.443 | 1.455 | 1.124 | 1.167 | 1.15 | 1.249 | 1.237 | 1.148 | 1.188 | 1.549 | 1.306 | 1.418 | 1.435 | 1.371 | 1.229 | 1.208 | 1.151 | 1.276 |
| Saturated |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |
| VP | 1.358 | 1.558 | 1.489 | 1.499 | 1.579 | 1.589 | 1.538 | 1.706 | 1.579 | 1.89 | 1.589 | 1.508 | 1.46 | 1.489 | 1.674 | 1.469 | 1.45 | 1.652 | 1.62 | 1.518 | 1.279 | 1.762 | 1.45 | 1.751 | 1.808 | 1.403 | 1.229 | 1.331 | 1.385 | 1.538 |
| Rel. Humidity | 96.5 | 91.4 | 81.6 | 93.4 | 96.8 | 94.7 | 95.7 | 87.7 | 96.8 | 82.6 | 95.7 | 89.2 | 98.8 | 97.7 | 67.1 | 79.4 | 79.3 | 75.6 | 76.4 | 75.6 | 92.9 | 87.9 | 90.1 | 81 | 79.4 | 97.7 | 100 | 90.8 | 83.1 | 83 |
|   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |
| Dew Point (C) | 11 | 12.2 | 9.8 | 12 | 13.3 | 13.1 | 12.7 | 13 | 13.3 | 13.6 | 13.2 | 11.4 | 12.4 | 12.6 | 8.7 | 9.2 | 9 | 10.2 | 10.1 | 9 | 9.5 | 13.5 | 10.9 | 12.2 | 12.3 | 11.6 | 10 | 9.7 | 9 | 10.6 |
| Pressure (mb) | 1012.3 | 1002.3 | 1004.1 | 998.1 | 995.5 | 991.8 | 1001.9 | 1013.5 | 1008.8 | 1010.6 | 1005.1 | 1013.2 | 1018.7 | 1025.5 | 1026.5 | 1024.9 | 1024.4 | 1025.1 | 1027.9 | 1032.4 | 1028.4 | 1026.7 | 1027.3 | 1026.7 | 1033.4 | 1038.2 | 1029.1 | 1025.1 | 1020.9 | 1005.9 |
| Days with |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |
| thunder | _ | 1 | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ |
| hail<5mm | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ |
| hail>/=5mm | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ |
| snow | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ |
| fog | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | 1 | _ | _ | _ |
| gales | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ |