| 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 | 9.00 | 9.00 | 9.00 | 9.00 | 9.00 | 9.00 | 9.00 |
| Total Cloud (oktas) | 6 | 6 | 8 | 8 | 8 | 8 | 8 | 8 | 9 | 8 | 6 | 6 | 7 | 8 | 8 | 8 | 8 | 8 | 8 | 3 | 2 | 9 | 8 | 8 | 9 | 6 | 5 | 0 | 6 | 8 | 8 |
| Wind |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |
| Direction | nnw | nnw | ssw | n | e | nne | n | ene | n | ssw | wnw | ssw | sse | s | sse | ssw | nw | nnw | ssw | ssw | nw | calm | sse | calm | wnw | n | n | ene | nne | e | e |
| Speed (knots) | 12 | 1 | 10 | 7 | 8 | 3 | 3 | 8 | 1 | 16 | 6 | 7 | 8 | 10 | 4 | 12 | 4 | 4 | 7 | 7 | 4 | 0 | 3 | 0 | 3 | 6 | 4 | 8 | 8 | 10 | 1 |
| Weather | 2 | 10 | 20 | 10 | 77 | 10 | 73 | 10 | 43 | 2 | 1 | 2 | 1 | 50 | 10 | 2 | 2 | 10 | 2 | 1 | 2 | 48 | 10 | 10 | 40 | 2 | 2 | 10 | 2 | 1 | 1 |
| Visibility | 7 | 6 | 5 | 5 | 5 | 5 | 4 | 5 | 4 | 7 | 8 | 7 | 7 | 5 | 5 | 7 | 6 | 5 | 6 | 8 | 7 | 3 | 6 | 5 | 4 | 7 | 7 | 6 | 7 | 8 | 7 |
| Screen (C) |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |
| Dry Bulb | 5.1 | 2.5 | 6.4 | 5.0 | 1.1 | 2.0 | 1.7 | 2.7 | 3.6 | 6.1 | 8.9 | 1.4 | 5.9 | 7.8 | 6.5 | 6.9 | 6.5 | 8.9 | 9.3 | 6.8 | 4.1 | -1.0 | 2.2 | -2.3 | 1.9 | 3.1 | 1.4 | -0.7 | 1.4 | 4.0 | 2.9 |
| Wet Bulb | 4.9 | 2.4 | 6.2 | 4.9 | 0.9 | 1.7 | 1.7 | 2.4 | 3.4 | 5.3 | 8.2 | 0.8 | 4.8 | 7.1 | 6.2 | 6.7 | 6.0 | 8.7 | 9.1 | 5.9 | 3.9 | -1.0 | 1.3 | -2.6 | 0.3 | 1.8 | 1.2 | -1.0 | 1.0 | 3.1 | 2.4 |
| Max | 8.7 | 6.1 | 8.0 | 6.2 | 2.5 | 2.4 | 2.5 | 3.6 | 6.0 | 9.3 | 12.8 | 7.1 | 7.5 | 7.6 | 9.8 | 9.2 | 8.5 | 11.1 | 10.4 | 10.5 | 10.0 | 5.5 | 3.1 | 1.7 | 5.5 | 5.7 | 4.2 | 4.0 | 4.2 | 4.2 | 3.9 |
| Min | 3.5 | 2.0 | 2.1 | 4.6 | 0.0 | 0.6 | 0.3 | 0.1 | 2.5 | 2.8 | 6.0 | -0.3 | 1.0 | 5.6 | 3.5 | 4.7 | 3.5 | 4.4 | 5.8 | 5.0 | 3.3 | -1.3 | -1.1 | -2.4 | -3.8 | 0.4 | -0.4 | -2.2 | -0.6 | 1.3 | 2.2 |
| Ground Observations (C) |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |
| Grass Min | -1.7 | -2.7 | -1.5 | 1.4 | -3.9 | -1.8 | -3.0 | -2.6 | -0.6 | _ | 3.8 | -5.2 | -2.8 | 2.4 | -1.8 | 0.5 | 3.5 | -1.0 | 6.2 | 0.9 | -2.2 | -4.7 | -4.9 | -6.6 | -8.5 | -4.9 | -5.6 | -5.9 | -3.5 | -1.6 | 0.6 |
| Conc. Min | 2.0 | 0.6 | 1.2 | 3.8 | -0.8 | 0.7 | -0.4 | 0.0 | 1.9 | _ | 5.4 | -1.9 | -0.2 | 4.7 | 3.1 | 4.4 | 2.0 | 2.9 | 8.2 | 5.1 | 1.5 | -1.0 | -1.4 | _ | -4.0 | 3.4 | -2.0 | -2.7 | -1.8 | -0.2 | 2.0 |
| Bare Earth Min | _ | _ | _ | _ | -0.6 | 1.0 | 0.0 | -0.2 | 2.1 | _ | 6.6 | _ | 1.5 | 4.4 | 3.0 | 4.2 | 3.0 | 3.1 | 3.9 | 5.0 | 1.4 | -0.7 | _ | _ | _ | _ | -1.9 | -2.5 | -1.5 | -0.5 | 2.1 |
| Soil/Earth Temperatures (C) |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |
| Surface | 4.1 | 2.6 | 5.1 | 5.0 | 2.7 | 2.6 | 2.4 | 2.6 | 3.6 | 4.4 | 0.7 | 1.8 | 4.4 | 6.2 | 5.5 | 5.7 | 5.5 | 6.4 | 7.6 | 6.9 | 3.4 | 2.0 | 2.6 | 1.2 | 0.8 | 1.1 | 1.2 | 0.6 | 0.8 | 2.4 | 2.8 |
| 5cm | 3.6 | 3.1 | 4.4 | 4.8 | 3.1 | 2.6 | 2.3 | 2.5 | 3.8 | 3.8 | 5.4 | 2.1 | 3.9 | 5.4 | 5.2 | 5.5 | 5.2 | 5.7 | 6.8 | 7.1 | 3.8 | 2.7 | 2.6 | 1.4 | 0.9 | 1.1 | 1.3 | 1.1 | 0.9 | 2.2 | 2.6 |
| 10cm | 3.8 | 3.5 | 4.5 | 5.0 | 3.4 | 2.9 | 2.5 | 2.7 | 3.6 | 4.0 | 5.4 | 2.3 | 4.0 | 5.6 | 5.3 | 5.4 | 5.4 | 5.9 | 7.1 | 7.3 | 4.2 | 3.2 | 3.0 | 2.0 | 1.3 | 1.7 | 1.7 | 1.5 | 1.1 | 2.1 | 2.9 |
| 20cm | 3.9 | 4.1 | 4.5 | 5.3 | 4.4 | 3.8 | 3.3 | 3.3 | 4.0 | 4.5 | 5.5 | 4.2 | 4.3 | 5.3 | 5.4 | 5.4 | 5.5 | 5.6 | 7.2 | 7.0 | 5.5 | 4.5 | 3.9 | 3.1 | 2.4 | 2.4 | 2.4 | 2.6 | 2.2 | 3.0 | 3.0 |
| 30cm | 3.9 | 4.2 | 4.5 | 5.0 | 4.6 | 4.3 | 3.7 | 3.6 | 4.1 | 4.4 | 5.4 | 4.6 | 4.3 | 5.0 | 5.3 | 5.5 | 5.5 | 2.1 | 7.1 | 6.7 | 5.8 | 4.9 | 4.2 | 3.0 | 3.1 | 2.9 | 2.7 | 2.9 | 2.5 | 3.3 | 2.9 |
| 40cm | 4.0 | 4.2 | 4.4 | 5.0 | 4.6 | 4.2 | 3.9 | 3.7 | 4.4 | 4.5 | 5.5 | 4.5 | 4.4 | 5.0 | 5.2 | 5.4 | 5.4 | 2.8 | 7.0 | 7.1 | 5.8 | 5.0 | 4.4 | 3.1 | 3.2 | 3.0 | 2.9 | 3.2 | 2.7 | 3.6 | 3.3 |
| 50cm | 4.4 | 4.6 | 4.8 | 5.2 | 5.2 | 4.8 | 4.5 | 4.3 | 4.2 | 4.9 | 5.7 | 4.8 | 5.0 | 5.2 | 5.5 | 5.6 | 5.6 | 6.0 | 7.1 | 6.8 | 6.3 | 5.6 | 5.0 | 4.2 | 3.8 | 3.5 | 3.7 | 3.6 | 3.5 | 3.9 | 3.9 |
| 100cm | 5.4 | 5.4 | 5.4 | 5.5 | 5.6 | 5.6 | 5.6 | 5.4 | 5.6 | 5.4 | 5.4 | 5.4 | 5.6 | 5.5 | 5.6 | 5.8 | 5.8 | 6.1 | 6.0 | 6.0 | 6.2 | 6.1 | 6.0 | 5.8 | 5.6 | 5.3 | 5.0 | 5.0 | 4.9 | 4.3 | 4.3 |
| State of the Ground |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |
| Without snow | 2 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 2 | 2 | 1 | 1 | 1 | 4 | 4 | 4 | 2 | 4 | 4 | 1 | 1 |
| With snow | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ |
| Snow depth | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ |
| State of the Grass | 3 | 4 | 3 | 3 | 3 | 1 | 3 | 1 | 1 | 1 | 3 | 1 | 1 | 3 | 1 | 3 | 1 | 3 | 3 | 3 | 7 | 8 | 1 | 7 | 4 | 7 | 4 | 7 | 7 | 1 | 0 |
| State of the Concrete | 1 | 1 | 1 | 1 | 1 | 0 | 2 | 1 | 1 | 1 | 1 | 1 | 0 | 0 | 1 | 1 | 1 | 2 | 1 | 1 | 0 | 0 | 0 | 0 | 2 | 1 | 2 | 0 | 0 | 0 | 0 |
| Evaporation (mm) |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |
| Hook-gauge reading | 49 | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | 59.1 | _ | _ | _ | _ | _ | _ | _ | _ | _ | 56.3 |
| Total evaporation (less rainfall) | 1.74 | > | > | > | > | > | > | > | > | > | > | > | > | > | > | > | > | > | > | > | 6.60 | > | > | > | > | > | > | > | > | > | 3.80 |
| Rainfall (mm) |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |
| Total | 0.1 | 0.1 | 1.0 | 0.4 | 0.1 | 0.2 | 2.3 | 1.9 | 0.1 | 1.5 | tr | tr | 0.1 | 1.8 | tr | 5.1 | 0.2 | 0.6 | 1.1 | 0.1 | tr(fe) | _ | tr(x) | tr | _ | tr | 0.8 | _ | 0.2 | _ | _ |
| Duration (hrs) | _ | 0.1 | 1.3 | 0.8 | _ | 1.1 | 2.6 | 7.4 | _ | 1.0 | _ | _ | _ | 1.6 | _ | 3.2 | _ | 0.7 | 0.3 | _ | _ | _ | _ | _ | _ | 0.1 | 3.1 | _ | _ | _ | _ |
| Intensity (mean over 24 hrs, mm/hr) | _ | 1.0 | 0.8 | 0.5 | _ | 0.2 | 0.9 | 0.3 | _ | 1.5 | _ | _ | _ | 1.1 | _ | 1.6 | _ | 0.9 | 3.7 | _ | _ | _ | _ | _ | _ | 0.0 | 0.3 | _ | _ | _ | _ |
| Run of Wind |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |
| Miles (over 24 hrs) | 130.26 | 82.78 | 77.31 | 82.82 | 88.68 | 45.53 | 49.06 | 77.73 | 227.29 | 187.28 | 341.34 | 171.38 | 277.84 | 121.35 | 165.53 | 172.32 | 115.02 | 95.79 | 205.09 | 147.85 | 50.49 | 37.35 | 42.95 | 71.32 | 71.58 | 102.32 | 86.64 | 162.33 | 124.44 | 74.55 | 35.21 |
| Mean (mph) | 7.1 | 4.5 | 4.2 | 4.5 | 4.8 | 2.5 | 2.7 | 4.2 | 12.3 | 10.1 | 18.5 | 9.3 | 15 | 6.6 | 9 | 9.3 | 6.2 | 5.2 | 11.1 | 8 | 2.7 | 2 | 2.3 | 3.9 | 3.9 | 5.5 | 4.7 | 8.8 | 6.7 | 4 | 1.9 |
| Gust (mph) | 23 | <15 | 15 | 17 | 17 | <15 | <15 | 21 | 31 | 40 | 20 | 25 | 23 | 16 | 22 | 23 | 25 | 16 | 34 | 30 | 21 | <15 | <15 | <15 | 21 | 31 | 18 | 30 | 23 | 19 | <15 |
| Sunshine (hrs) | 1.1 | 0.1 | 0.0 | 0.6 | 0.2 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 3.7 | 1.8 | 0.0 | 0.0 | 1.5 | 0.0 | 0.3 | 0.0 | 0.0 | 5.3 | 4.9 | 1.2 | 0.0 | 0.0 | 1.8 | 6.3 | 0.7 | 5.3 | 5.1 | 0.0 | 0.0 |
| Statistics |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |
| Saturated |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |
| VP(Twb) | 0.867 | 0.726 | 0.949 | 0.867 | 0.652 | 0.691 | 0.691 | 0.726 | 0.78 | 0.891 | 1.088 | 0.648 | 0.861 | 1.009 | 0.949 | 0.982 | 0.936 | 1.126 | 1.156 | 0.929 | 0.808 | 0.568 | 0.671 | 0.505 | 0.624 | 0.696 | 0.666 | 0.568 | 0.657 | 0.763 | 0.726 |
| VP | 0.853 | 0.719 | 0.935 | 0.86 | 0.639 | 0.671 | 0.691 | 0.706 | 0.766 | 0.837 | 1.04 | 0.608 | 0.787 | 0.962 | 0.929 | 0.968 | 0.902 | 1.112 | 1.142 | 0.868 | 0.794 | 0.568 | 0.61 | 0.485 | 0.516 | 0.608 | 0.653 | 0.548 | 0.63 | 0.702 | 0.692 |
| Saturated |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |
| VP | 0.879 | 0.732 | 0.962 | 0.873 | 0.662 | 0.706 | 0.691 | 0.742 | 0.791 | 0.942 | 1.141 | 0.676 | 0.929 | 1.059 | 0.968 | 0.995 | 0.968 | 1.141 | 1.172 | 0.989 | 0.819 | 0.568 | 0.716 | 0.516 | 0.701 | 0.763 | 0.676 | 0.581 | 0.676 | 0.814 | 0.753 |
| RH % | 97 | 98.2 | 97.2 | 98.5 | 96.5 | 95 | 100 | 95.1 | 96.8 | 88.9 | 91.1 | 89.9 | 84.7 | 90.8 | 96 | 97.3 | 93.2 | 97.5 | 97.4 | 87.8 | 96.9 | 100 | 85.2 | 94 | 73.6 | 79.7 | 96.6 | 94.3 | 93.2 | 86.2 | 91.9 |
|   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |
| Dew Point (C) | 4.7 | 2.3 | 6 | 4.8 | 0.6 | 1.3 | 1.7 | 2 | 3.1 | 4.4 | 7.5 | -0.1 | 3.5 | 6.4 | 5.9 | 6.5 | 5.5 | 8.5 | 8.9 | 4.9 | 3.7 | -1 | 0 | -3.1 | -2.3 | -0.1 | 0.9 | -1.5 | 0.4 | 1.9 | 1.7 |
| Pressure (mb) | 1000.6 | 1023.7 | 1026.7 | 1031.1 | 1023.5 | 1022.0 | 1025.2 | 1025.8 | 1026.8 | 1020.5 | 1015.9 | 1028.4 | 1021.1 | 1019.2 | 1015.0 | 1008.6 | 1001.6 | 1012.7 | 1017.1 | 1012.6 | 1027.2 | 1037.9 | 1036.8 | 1032.5 | 1027.4 | 1028.5 | 1027.6 | 1028.7 | 1033.8 | 1033.7 | 1028.6 |
| Days with |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |
| thunder | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ |
| hail<5mm | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ |
| hail>/=5mm | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ |
| snow | _ | _ | _ | _ | 1 | _ | 1 | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ |
| fog | _ | _ | _ | _ | _ | _ | 1 | _ | 1 | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | 1 | _ | _ | 1 | _ | _ | _ | _ | _ | _ |