| home | Summary of the weather at Hampstead during 2004 | ||||||||||||||||||
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| Month | Mean Max | Mean Min | Hi Max | Date | Lo Max | Date | Hi Min | Date | Low Min | Date | GrassMin | Date | AirFrost | GrdFrost | Max <0 | Max >10 | Max >21 | Fog | |
| degC | degC | degC | degC | degC | degC | degC | days | days | days | days | days | 09gmt | |||||||
| Jan-04 | 7.8 | 2.3 | 12.0 | 6 | 3.2 | 2 | 7.4 | 11 | -4.2 | 29 | -8.9 | 3 | 10 | 20 | 0 | 7 | 0 | 0 | |
| Feb-04 | 7.8 | 2.8 | 16.0 | 4 | 1.9 | 28 | 11.3 | 4 | -4.4 | 26 | -8.9 | 27 | 11 | 14 | 0 | 5 | 0 | 0 | |
| Mar-04 | 10.0 | 3.3 | 18.7 | 31 | 4.3 | 10 | 9.5 | 16 | -3.3 | 2 | -8.3 | 1 | 5 | 13 | 0 | 14 | 0 | 0 | |
| Apr-04 | 14.2 | 5.9 | 21.6 | 24 | 8.0 | 29 | 9.9 | 1 | 1.4 | 11 | -6.5 | 11 | 0 | 12 | 0 | 25 | 1 | 0 | |
| May-04 | 17.5 | 8.5 | 23.9 | 19 | 10.1 | 4 | 12.8 | 29 | 3.7 | 22 | 1.1 | 4 | 0 | 0 | 0 | 31 | 8 | 0 | |
| Jun-04 | 21.2 | 11.7 | 30.2 | 8 | 15.1 | 1 | 16.1 | 8 | 6.0 | 19 | 4.7 | 21 | 0 | 0 | 0 | 30 | 12 | 0 | |
| Jul-04 | 22.0 | 12.5 | 28.6 | 29 | 16.9 | 12 | 16.5 | 30 | 9.0 | 10 | 3.6 | 5 | 0 | 0 | 0 | 31 | 20 | 0 | |
| Aug-04 | 23.3 | 13.7 | 30.8 | 8 | 18.2 | 29 | 19.6 | 9 | 9.5 | 31 | 7.2 | 21 | 0 | 0 | 0 | 31 | 21 | 0 | |
| Sep-04 | 20.1 | 11.6 | 27.4 | 5 | 14.0 | 25 | 15.6 | 7 | 4.8 | 25 | 2.0 | 25 | 0 | 0 | 0 | 30 | 11 | 0 | |
| Oct-04 | 14.3 | 8.3 | 17.6 | 24 | 9.1 | 15 | 13.1 | 24 | 4.7 | 26 | -1.3 | 19 | 0 | 1 | 0 | 30 | 0 | 0 | |
| Nov-04 | 10.4 | 5.2 | 13.9 | 4 | 4.0 | 20 | 9.5 | 23 | -1.3 | 20 | -7.5 | 20 | 3 | 7 | 0 | 20 | 0 | 0 | |
| Dec-04 | 7.9 | 2.6 | 12.5 | 23 | 3.9 | 26 | 8.5 | 16 | -3.3 | 26 | -9.9 | 26 | 4 | 14 | 0 | 7 | 0 | 3 | |
| YEAR | 14.7 | 7.4 | 30.8 | 1.9 | 19.6 | -4.4 | -9.9 | 33 | 81 | 0 | 261 | 73 | 3 | ||||||
| Month | Rainfall | Wettest | Date | >0.2mm | >1mm | >25mm | Sunshine | Max Sun | Date | NoSun | >10h | Snow | SnowLying | Thunder | Hail | IcePellets | MostSnow | Date | |
| mm | mm | days | days | days | hours | hours | days | days | days | 0900gmt | days | days | days | cm | |||||
| Jan-04 | 92.2 | 10.9 | 15 | 24 | 17 | 0 | 59.3 | 7.6 | 29 | 9 | 0 | 3 | 3 | 1 | 1 | 0 | 5 | 29 | |
| Feb-04 | 27.8 | 7.4 | 1 | 15 | 7 | 0 | 66.3 | 7.3 | 25 | 5 | 0 | 5 | 0 | 0 | 0 | 0 | 0 | ||
| Mar-04 | 33.7 | 8.1 | 12 | 17 | 10 | 0 | 95.7 | 10.1 | 30 | 4 | 1 | 3 | 1 | 0 | 1 | 0 | 4 | 12 | |
| Apr-04 | 77.1 | 22.4 | 27 | 13 | 17 | 0 | 135.8 | 10.6 | 23 | 2 | 3 | 0 | 0 | 1 | 2 | 0 | 0 | ||
| May-04 | 46.7 | 13.1 | 3 | 10 | 6 | 0 | 173.9 | 11.9 | 19 | 1 | 4 | 0 | 0 | 0 | 1 | 0 | 0 | ||
| Jun-04 | 41.3 | 19.1 | 22 | 11 | 7 | 0 | 178.3 | 12.1 | 7 | 0 | 5 | 0 | 0 | 0 | 0 | 0 | 0 | ||
| Jul-04 | 50.6 | 19.4 | 7 | 11 | 8 | 0 | 158.2 | 11.9 | 23 | 0 | 2 | 0 | 0 | 2 | 0 | 0 | 0 | ||
| Aug-04 | 124.1 | 22.0 | 9 | 20 | 15 | 0 | 160.1 | 11.5 | 7 | 0 | 3 | 0 | 0 | 5 | 0 | 0 | 0 | ||
| Sep-04 | 23.5 | 6.4 | 12 | 15 | 8 | 0 | 146.9 | 10.0 | 5 | 0 | 2 | 0 | 0 | 0 | 0 | 0 | 0 | ||
| Oct-04 | 135.5 | 31.7 | 13 | 22 | 17 | 1 | 74.9 | 6.0 | 3 | 1 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | ||
| Nov-04 | 43.3 | 17.7 | 18 | 17 | 9 | 0 | 53.9 | 7.2 | 13 | 7 | 0 | 3 | 1 | 0 | 0 | 0 | <1 | 19 | |
| Dec-04 | 47.8 | 13.6 | 17 | 12 | 5 | 0 | 52.5 | 6.4 | 26 | 8 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | ||
| YEAR | 743.6 | 31.7 | 187 | 126 | 1 | 1355.8 | 12.1 | 37 | 20 | 14 | 5 | 10 | 5 | 0 | 5 | ||||