Roches Point 1971–2000 averages
TEMPERATURE (degrees Celsius)JanFebMarAprMayJunJulAugSepOctNovDecYear
mean daily max8.88.89.911.713.916.618.618.516.513.811.09.613.2
mean daily min4.
mean temperature6.
absolute max.13.515.216.822.123.025.427.528.023.321.216.413.728.0
min. maximum-
max. minimum10.710.210.612.515.615.918.119.216.615.513.212.019.2
absolute min. -7.2-4.6-2.5-
mean num. of days with air frost
mean num. of days with ground frost
mean 5cm soil5.
mean 10cm soil5.
mean 20cm soil6.
mean at 0900UTC87.187.085.580.380.681.782.084.685.687.
mean at 1500UTC 82.780.577.273.375.977.176.878.177.380.580.084.178.6
SUNSHINE (hours)
mean daily duration
greatest daily duration
mean num. of days with no sun
mean monthly total 79.572.063.939.750.643.342.461.857.279.860.677.3727.9
greatest daily total 34.547.231.830.239.656.246.949.241.860.830.432.460.8
mean num. of days with >= 0.2mm 141314101110101010121212138
mean num. of days with >= 1.0mm 1199687677991098
mean num. of days with >= 5.0mm 55423223354543
WIND (knots)
mean monthly speed 14.614.113.611.611.410.710.110.011.312.813.014.212.3
max. gust 86827668585357607176698989
max. mean 10-minute speed 68565250414140425255496850.7
mean num. of days with gales
WEATHER (mean no. of days with..)
snow or sleet
snow lying at 0900UTC0.