Common information

Country
Netherlands
Population
93 084

Weather, climate, temperature by months in Heerlen

Season Autumn Winter Spring Summer
Month Sep Oct Nov Dec Jan Feb Mar Apr May Jun Jul Aug Year
Record high, °C 32 23 20 17 15 17 21 27 28 32 36 32 36
Average high, °C 18 14 8 5 3 5 9 13 17 20 22 21 13
Average temperature, °C 14 10 5 3 1 2 5 8 12 15 17 16 9
Average low, °C 11 7 3 2 0 0 2 4 7 11 13 12 6
Record low, °C 2 -5 -6 -16 -12 0 -8 -3 -1 3 6 6 -16
Rain, days 6 6 6 7 6 5 5 5 6 7 7 7 73
Snow, days 0 0 3 7 9 7 6 3 0 0 0 0 35
Fog, days 21 21 20 21 19 17 18 18 17 20 20 21 233
Thunderstorms, days 2 0 0 0 0 1 1 1 4 5 4 3 21
Average precipitation, mm. 50 60 50 60 50 40 40 40 50 70 80 70 660
Relative humidity, % 80 83 85 87 86 84 78 73 72 74 76 78 80
Relative humidity morning, % 92 92 91 91 91 89 90 88 86 88 88 90 90
Relative humidity evening, % 68 73 81 85 84 75 70 62 59 62 61 60 70
Wind speed, km/h 19 17 19 20 20 19 20 17 16 17 16 14 18
Day Length, часов 13 11 10 9 9 11 13 15 16 17 17 15 13
Dew point, °C 10 7 3 1 0 0 1 3 7 10 12 12 66
Growing degree-day, °C 150 26 0 0 0 0 0 0 78 175 241 224 893
Solar radiation, global, Mj/m2 10 6 3 2 3 5 9 13 17 17 17 15 10

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