| 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 | 8.00 | 8.00 | 9.00 | 9.00 | 9.00 | 9.00 | 9.00 | 8.00 | 8.00 | 9.00 | 9.00 | 9.00 | 9.00 | 9.00 | 8.00 | 8.00 | 9.00 | 9.00 | 9.00 | 9.00 | 9.00 | 8.00 | 8.00 | 9.00 | 9.00 | 9.00 | 9.00 | 9.00 |
| Total Cloud (oktas) | 8 | 2 | 1 | 3 | 8 | 0 | 2 | 9 | 0 | 0 | 6 | 2 | 5 | 8 | 6 | 1 | 3 | 8 | 5 | 5 | 6 | 3 | 6 | 8 | 3 | 8 | 7 | 7 | 2 | 3 |
| Wind |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |
| Direction | nnw | nnw | nnw | nw | nne | ese | nnw | n | se | se | sw | se | nne | nne | n | sw | w | wsw | ssw | nnw | wnw | nw | nnw | calm | nne | nne | ne | sse | sse | se |
| Speed (knots) | 11 | 4 | 4 | 1 | 6 | 1 | 6 | 1 | 4 | 4 | 2 | 4 | 4 | 3 | 3 | 3 | 1 | 2 | 5 | 4 | 8 | 8 | 1 | 0 | 1 | 0 | 1 | 1 | 1 | 3 |
| Weather | 61 | 2 | 2 | 2 | 10 | 0 | 2 | 10 | 0 | 0 | 5 | 1 | 1 | 44 | 1 | 3 | 2 | 3 | 1 | 2 | 3 | 2 | 1 | 2 | 5 | 1 | 2 | 2 | 1 | 1 |
| Visibility | 5 | 7 | 7 | 7 | 6 | 7 | 7 | 5 | 7 | 7 | 7 | 8 | 8 | 6 | 7 | 9 | 7 | 7 | 8 | 8 | 7 | 8 | 8 | 7 | 7 | 6 | 6 | 6 | 7 | 8 |
| Screen (C) |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |
| Dry Bulb | 10.9 | 16.1 | 17.4 | 15.2 | 11.5 | 15.7 | 22.0 | 17.1 | 22.4 | 20.8 | 21.8 | 23.9 | 17.4 | 14.7 | 16.8 | 19.7 | 20.2 | 19.0 | 18.0 | 20.4 | 15.0 | 16.6 | 17.2 | 14.7 | 19.3 | 15.1 | 15.1 | 18.4 | 20.7 | 21.5 |
| Wet Bulb | 10.0 | 12.9 | 13.7 | 12.3 | 10.3 | 11.4 | 17.7 | 16.0 | 16.4 | 16.8 | 18.0 | 19.6 | 14.6 | 13.9 | 13.2 | 15.0 | 17.0 | 14.9 | 14.6 | 16.0 | 10.9 | 15.7 | 17.0 | 13.1 | 16.1 | 12.7 | 12.7 | 14.2 | 16.0 | 15.4 |
| Max | 17.3 | 19.4 | 23.1 | 23.8 | 17.8 | 21.8 | 25.0 | 24.2 | 25.8 | 28.4 | 27.4 | 30.4 | 25.4 | 17.0 | 20.6 | 23.2 | 26.5 | 22.0 | 21.4 | 23.4 | 19.4 | 20.1 | 21.0 | 22.3 | 24.2 | 21.1 | 18.7 | 21.8 | 26.7 | 27.6 |
| Min | 5.3 | 7.6 | 7.8 | 7.6 | 9.5 | 6.2 | 11.9 | 11.1 | 12.5 | 10.7 | 15.0 | 16.2 | 12.9 | 12.1 | 7.5 | 10.6 | 14.1 | 14.8 | 13.0 | 12.6 | 11.1 | 11.0 | 7.5 | 13.5 | 13.9 | 13.1 | 10.6 | 10.4 | 10.6 | 11.2 |
| Ground Observations (C) |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |
| Grass Min | 2.6 | 4.4 | 4.5 | 4.6 | 6.4 | 4.0 | 8.3 | 8.6 | 9.3 | 8.0 | 11.6 | 12.8 | 10.5 | 11.0 | 5.5 | 7.4 | 11.8 | 12.5 | 10.5 | 9.3 | 8.6 | 8.5 | 4.0 | 11.6 | 11.1 | 10.3 | 9.5 | 7.0 | 7.0 | 8.3 |
| Conc. Min | 6.7 | 8.1 | 8.4 | 9.1 | 10.4 | 8.1 | 12.0 | 12.6 | 13.5 | 12.0 | 16.0 | 16.8 | 15.0 | 9.0 | _ | 9.8 | 15.0 | 14.3 | 11.6 | 12.0 | 9.9 | 9.9 | 7.9 | 13.5 | 14.0 | 13.1 | 11.3 | 13.0 | 10.3 | 11.1 |
| Bare Earth Min | 6.1 | 7.9 | 8.5 | 8.4 | 9.6 | 7.6 | 11.1 | 12.0 | 12.4 | 10.8 | 14.6 | 15.8 | 14.2 | 13.4 | 7.5 | 10.7 | 14.8 | 15.1 | 12.2 | 9.0 | 9.9 | 9.5 | 7.4 | 13.5 | 14.1 | 12.6 | 11.1 | 9.6 | 9.0 | 11.4 |
| Soil/Earth Temperatures (C) |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |
| Surface | 13.1 | 15.9 | 14.6 | 14.3 | 14.5 | 16.6 | 19.9 | 19.7 | 21.1 | 20.2 | 23.3 | 21.7 | 21.6 | 16.1 | 19.5 | 21.3 | 21.0 | 21.6 | 21.0 | 20.5 | 18.1 | 20.0 | 20.0 | 16.9 | 20.1 | 18.5 | 18.6 | 20.5 | 23.5 | 24.4 |
| 5cm | 12.3 | 13.4 | 13.6 | 14.3 | 14.9 | 14.9 | 17.3 | 18.0 | 18.7 | 17.7 | 20.0 | 20.8 | 20.3 | 17.0 | 19.7 | 19.0 | 19.1 | 19.7 | 19.0 | 18.6 | 17.1 | 16.6 | 17.2 | 17.5 | 18.9 | 16.9 | 16.8 | 17.9 | 18.0 | 19.4 |
| 10cm | 12.5 | 13.3 | 13.9 | 14.8 | 15.3 | 15.0 | 17.3 | 18.3 | 19.1 | 18.3 | 20.4 | 21.0 | 20.8 | 17.9 | 16.9 | 17.8 | 19.6 | 20.2 | 19.4 | 19.0 | 17.6 | 17.0 | 17.4 | 18.3 | 19.5 | 17.3 | 17.0 | 17.6 | 18.4 | 19.1 |
| 20cm | 13.0 | 13.3 | 14.5 | 15.5 | 15.7 | 15.1 | 16.5 | 17.9 | 18.4 | 18.7 | 20.0 | 21.6 | 20.7 | 17.8 | 16.5 | 18.3 | 19.3 | 20.1 | 19.1 | 18.5 | 17.9 | 17.1 | 17.4 | 18.5 | 19.4 | 17.6 | 17.3 | 17.7 | 18.9 | 18.6 |
| 30cm | 13.9 | 14.0 | 14.8 | 15.6 | 16.0 | 15.7 | 16.5 | 17.5 | 18.1 | 18.4 | 19.1 | 22.1 | 22.3 | 17.6 | 16.9 | 17.4 | 18.8 | 19.5 | 18.8 | 19.0 | 18.0 | 18.0 | 17.6 | 18.4 | 18.9 | 18.3 | 17.8 | 17.9 | 19.6 | 18.2 |
| 40cm | 13.5 | 13.7 | 14.5 | 15.3 | 15.7 | 15.4 | 16.2 | 17.3 | 17.9 | 18.1 | 19.0 | 22.9 | 22.9 | 17.7 | 17.2 | 16.8 | 18.6 | 19.5 | 18.6 | 18.5 | 18.4 | 18.1 | 17.5 | 18.2 | 18.7 | 18.6 | 18.2 | 18.1 | 20.5 | 18.0 |
| 50cm | 13.9 | 13.9 | 14.4 | 15.2 | 15.6 | 15.6 | 16.0 | 16.8 | 17.0 | 17.9 | 18.5 | 23.7 | 23.4 | 17.9 | 17.7 | 16.5 | 18.4 | 19.3 | 19.0 | 19.0 | 18.5 | 18.2 | 18.1 | 18.1 | 18.7 | 17.5 | 18.5 | 18.0 | 21.6 | 17.8 |
| 100cm | 12.7 | 12.8 | 12.8 | 12.9 | 13.2 | 13.5 | 13.7 | 13.9 | 14.3 | 14.6 | 15.0 | 25.3 | 25.6 | 16.0 | 16.0 | 15.9 | 15.9 | 16.0 | 16.2 | 16.4 | 16.1 | 16.1 | 16.4 | 16.2 | 16.3 | 16.3 | 16.5 | 16.0 | 16.7 | 16.4 |
| State of the Ground |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |
| Without snow | 1 | 1 | 0 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 1 | 9 | 9 | 9 | 9 | 9 | 9 | 1 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 |
| With snow | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ |
| Snow depth | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ |
| State of the Grass | 3 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 0 | 0 | 1 | 1 | 0 | 1 | 0 | 0 | 0 | 1 | 0 | 0 | 1 | 0 | 1 | 3 | 0 | 0 | 0 |
| State of the Concrete | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 0 |
| Evaporation (mm) |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |
| Hook-gauge reading | 72.82 | _ | _ | _ | _ | _ | _ | _ | _ | _ | 64.99 | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | 78.53 | _ | _ | _ | _ | 58.73 |
| Total evaporation (less rainfall) | > | > | > | > | > | > | > | > | > | > | 45.46 | > | > | > | > | > | > | > | > | > | > | > | > | > | 44.09 | > | > | > | > | 20.05 |
| Rainfall (mm) |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |
| Total | tr | _ | _ | tr | _ | _ | _ | _ | _ | _ | _ | tr | 2.6 | tr | _ | 0.1 | _ | _ | _ | 1.5 | _ | _ | tr | _ | tr | 0.7 | tr | _ | _ | _ |
| Duration (hrs) | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | 1.8 | _ | _ | 0.9 | _ | _ | _ | 0.9 | _ | _ | 0.1 | _ | 0.9 | 0.3 | _ | _ | _ | _ |
| Intensity (mean over 24 hrs, mm/hr) | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | 1.4 | _ | _ | 0.1 | _ | _ | _ | 1.7 | _ | _ | 0.0 | _ | 0.0 | 2.3 | _ | _ | _ | _ |
| Run of Wind |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |
| Miles (over 24 hrs) | 97.52 | 78.15 | 88.07 | 80.58 | 59.75 | 43.77 | 43.12 | 49.32 | 76.13 | 66.81 | 60.08 | 87.2 | 66.66 | 75.37 | 53.1 | 51.51 | 67.77 | 92.73 | 97.62 | 78.73 | 245.25 | 104.06 | 36.84 | 38.3 | 108.4 | 57.84 | 35.78 | 55.4 | 55.7 | 55.03 |
| Mean (mph) | 5.3 | 4.2 | 4.8 | 4.4 | 3.2 | 2.4 | 2.3 | 2.7 | 4.1 | 3.6 | 3.3 | 4.7 | 3.6 | 4.1 | 2.9 | 2.8 | 3.7 | 5 | 5.3 | 4.3 | 13.3 | 5.6 | 2 | 2.1 | 5.9 | 3.1 | 1.9 | 3 | 3 | 3 |
| Gust (mph) | 23 | 15 | 20 | 17 | 15 | <15 | <15 | <15 | 16 | 20 | <15 | 16 | 17 | 18 | <15 | 16 | <15 | 16 | 18 | 26 | 31 | 28 | 15 | <15 | 22 | 19 | <15 | <15 | <15 | 16 |
| Sunshine (hrs) | 0.3 | 12.0 | 12.7 | 8.5 | 8.7 | 11.5 | 10.8 | 9.1 | 12.8 | 12.9 | 6.6 | 7.9 | 3.0 | 1.0 | 9.1 | 6.7 | 10.7 | 0.6 | 2.7 | 10.4 | 10.0 | 8.2 | 6.8 | 5.7 | 5.4 | 0.3 | 0.5 | 4.1 | 8.6 | 9.2 |
| Statistics |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |
| Saturated |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |
| VP(Twb) | 1.229 | 1.489 | 1.569 | 1.431 | 1.253 | 1.349 | 2.026 | 1.819 | 1.866 | 1.914 | 2.065 | 2.282 | 1.663 | 1.589 | 1.518 | 1.706 | 1.939 | 1.695 | 1.663 | 1.819 | 1.305 | 1.785 | 1.939 | 1.508 | 1.831 | 1.469 | 1.469 | 1.62 | 1.819 | 1.751 |
| VP | 1.168 | 1.271 | 1.316 | 1.233 | 1.171 | 1.056 | 1.731 | 1.744 | 1.455 | 1.64 | 1.804 | 1.986 | 1.471 | 1.534 | 1.272 | 1.384 | 1.72 | 1.414 | 1.43 | 1.518 | 1.026 | 1.723 | 1.925 | 1.399 | 1.612 | 1.305 | 1.305 | 1.333 | 1.497 | 1.333 |
| Saturated |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |
| VP | 1.305 | 1.831 | 1.988 | 1.728 | 1.358 | 1.785 | 2.645 | 1.951 | 2.711 | 2.458 | 2.613 | 2.968 | 1.988 | 1.674 | 1.914 | 2.296 | 2.369 | 2.199 | 2.065 | 2.398 | 1.706 | 1.89 | 1.963 | 1.674 | 2.24 | 1.717 | 1.717 | 2.118 | 2.443 | 2.566 |
| RH % | 89.5 | 69.4 | 66.2 | 71.4 | 86.2 | 59.2 | 65.4 | 89.4 | 53.7 | 66.7 | 69 | 66.9 | 74 | 91.6 | 66.5 | 60.3 | 72.6 | 64.3 | 69.2 | 63.3 | 60.1 | 91.2 | 98.1 | 83.6 | 72 | 76 | 76 | 62.9 | 61.3 | 51.9 |
|   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |
| Dew Point (C) | 9.2 | 10.5 | 11 | 10.1 | 9.3 | 7.8 | 15.2 | 15.3 | 12.6 | 14.4 | 15.9 | 17.4 | 12.7 | 13.4 | 10.5 | 11.8 | 15.1 | 12.1 | 12.3 | 13.2 | 7.3 | 15.2 | 16.9 | 12 | 14.1 | 10.9 | 10.9 | 11.2 | 13 | 11.2 |
| Pressure (mb) | 1028.2 | 1031.2 | 1030.3 | 1027.3 | 1027.2 | 1030.2 | 1027.6 | 1027.6 | 1024.5 | 1019.0 | 1019.7 | 1018.6 | 1021.7 | 1023.1 | 1022.1 | 1019.4 | 1019.2 | 1012.7 | 1008.0 | 1012.8 | 1008.9 | 1010.7 | 1018.4 | 1016.1 | 1013.1 | 1017.3 | 1021.5 | 1021.9 | 1022.9 | 1024.5 |
| Days with |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |
| thunder | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ |
| hail<5mm | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ |
| hail>/=5mm | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ |
| snow | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ |
| fog | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ |