Shannon Aiport 1981–2010 averages
TEMPERATURE (degrees Celsius)JanFebMarAprMayJunJulAugSepOctNovDecYear
mean daily max8.
mean daily min3.
mean temperature6.
absolute max.14.815.518.323.527.230.230.629.826.122.317.615.330.6
min. maximum-
max. minimum11.812.311.713.015.317.819.419.317.816.313.412.919.4
absolute min. -11.2-5.5-5.8-
mean num. of days with air frost
mean num. of days with ground frost 13.712.611.
mean 5cm soil4.
mean 10cm soil4.
mean 20cm soil5.
mean at 0900UTC87.
mean at 1500UTC 80.574.670.564.463.365.
SUNSHINE (hours)
mean daily duration
greatest daily duration
mean no. of days with no sun
mean monthly total 102.376.278.759.264.869.865.982.075.6104.994.1104.0977.6
greatest daily total 38.229.428.
mean num. of days with >= 0.2mm 201619161615161816202019211
mean num. of days with >= 1.0mm 161214111211121312161515159
mean num. of days with >= 5.0mm 85544445476763
WIND (knots)
mean monthly speed 10.310.
max. gust 75806562595152556271668383
max. mean 10-minute speed 52464440373738354047415757
mean num. of days with gales
WEATHER (mean no. of days with..)
snow or sleet
snow lying at 0900UTC0.