Common information

CountryIreland
Population16 901

Weather, climate, temperature by months in Letterkenny

Season Autumn Winter Spring Summer
Month Sep Oct Nov Dec Jan Feb Mar Apr May Jun Jul Aug Year
Record high, °C 24 20 16 14 13 13 19 20 25 28 29 27 29
Average high, °C 17 13 10 7 7 8 10 12 15 17 19 19 13
Average temperature, °C 13 10 7 4 4 5 6 8 11 13 15 15 9
Average low, °C 9 6 3 1 1 1 2 4 6 9 11 11 5
Record low, °C -2 -4 -6 -10 -12 -11 -12 -4 -3 -1 2 1 -12
Rain, days 15 18 18 18 19 15 17 14 14 13 14 15 188
Snow, days 0 0 1 4 5 5 3 2 0 0 0 0 20
Fog, days 1 0 0 0 0 0 1 1 2 2 2 1 10
Thunderstorms, days 0 1 1 1 1 1 0 0 0 1 1 1 6
Average precipitation, mm. 102 119 114 104 114 76 86 56 58 66 71 91 1057
Relative humidity, % 83 86 89 90 90 85 81 76 73 76 79 82 83
Relative humidity morning, % 83 83 83 83 83 82 82 80 79 82 84 83 82
Relative humidity evening, % 78 78 80 81 81 77 77 76 76 79 81 80 78
Wind speed, km/h 11 12 13 14 16 16 16 13 12 12 11 10 13
Day Length, часов 13 11 9 8 9 10 13 15 17 18 18 16 13
Dew point, °C 13 8 6 4 3 3 5 6 7 9 12 12 88
Growing degree-day, °C 0 0 0 0 0 0 0 15 99 147 143 84 488
Solar radiation, global, Mj/m2 11 6 3 1 2 5 9 14 19 19 18 15 10

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