| Monthly Climate Summary for April 2008 at Whipsnade (Lodge) | ||||||||||||||||||||||
| home | daily | |||||||||||||||||||||
| Warm early and late, but extended cold period 5th-20th; frequent hail | back | forward | ||||||||||||||||||||
| Overall mean temperature was | 7.5 | ēC | which is | +0.3 | degC | compared with the 1971-2000 average | ||||||||||||||||
| Mean day maximum (09-21) was | 12.1 | ēC | which is | +0.9 | degC | compared with the 1971-2000 average | ||||||||||||||||
| Mean night minimum (21-09) was | 2.8 | ēC | which is | -0.4 | degC | compared with the 1971-2000 average | ||||||||||||||||
| Mean 24hr maximum (09-09) was | 12.2 | ēC | ||||||||||||||||||||
| Mean 24hr minimum (09-09) was | 2.7 | ēC | ||||||||||||||||||||
| Highest day max was | 20.5 | ēC | on the | 26 | ||||||||||||||||||
| Lowest day max was | 4.6 | ēC | on the | 6 | ||||||||||||||||||
| Highest night min was | 10.4 | ēC | on the | 27 | ||||||||||||||||||
| Lowest night min was | -3.4 | ēC | on the | 15 | ||||||||||||||||||
| Lowest grass min was | -9.2 | ēC | on the | 15 | ||||||||||||||||||
| Total rainfall this month was | 48.0 | mm | which is | 87.3 | per cent | of the 1971-2000 average | ||||||||||||||||
| Highest daily fall was | 13.8 | mm | on the | 29 | ||||||||||||||||||
| Number of hours with rain was | ||||||||||||||||||||||
| Equiv. TSR rainfall duration was | 38.2 | hrs | which is | per cent | of the 1971-2000 average | |||||||||||||||||
| Highest no of wet hrs | hrs | on the | ||||||||||||||||||||
| Highest duration | 6.8 | hrs | on the | 29 | ||||||||||||||||||
| Mean rainfall intensity | 1.26 | mm/hr | ||||||||||||||||||||
| Total CS sunshine this month was | 154.0 | hrs | which is | 110.9 | per cent | of the 1971-2000 average | ||||||||||||||||
| Equiv. C/S sunshine total was | hrs | which is | per cent | of the 1971-2000 average | ||||||||||||||||||
| Highest daily sun was | 10.1 | hrs | on the | 28 | ||||||||||||||||||
| Maximum snow depth was | 5.0 | cm | on the | 6 | ||||||||||||||||||
| Mean sea-level pressure at 09Z | 1010.7 | mbar | which is | -4.5 | mbar | compared with the 1961-1990 average | ||||||||||||||||
| Highest pressure at 09Z | 1030.9 | mbar | on the | 3 | ||||||||||||||||||
| Lowest pressure at 09Z | 987.5 | mbar | on the | 30 | ||||||||||||||||||
| Number of days with: | ||||||||||||||||||||||
| Air Frost | 9 | 0.2mm rain | 17 | No sun | 4 | Snow lying | 2 | |||||||||||||||
| Grnd Frost | 22 | 1.0mm | 12 | 3h sun | 24 | Snow/sleet | 1 | |||||||||||||||
| Max < 0ēC | 0 | 5mm | 3 | 6h sun | 13 | Hail | 7 | |||||||||||||||
| Max > 10 | 21 | 10mm | 1 | 9h sun | 3 | Thunder | 4 | |||||||||||||||
| Max > 20 | 1 | 25mm | 0 | 12h sun | 0 | Fog at 09Z | 2 | |||||||||||||||
| Max > 30 | 0 | 15h sun | 0 | Gale | 0 | |||||||||||||||||
| Notable events during the month: | ||||||||||||||||||||||