Common information

Country
France
Population
57 576

Weather, climate, temperature by months in Cergy

Season Autumn Winter Spring Summer
Month Sep Oct Nov Dec Jan Feb Mar Apr May Jun Jul Aug Year
Record high, °C 34 29 19 17 16 20 23 29 33 37 38 39 39
Average high, °C 21 16 10 7 7 8 11 15 19 22 24 24 15
Average temperature, °C 15 12 7 4 4 4 7 10 13 16 19 19 11
Average low, °C 10 8 4 2 1 1 3 5 8 11 13 13 7
Record low, °C -1 -5 -10 -16 -18 -15 -11 -5 -1 1 4 4 -18
Rain, days 5 5 5 6 6 5 4 4 5 5 5 5 60
Snow, days 0 0 1 2 4 4 2 1 0 0 0 0 14
Fog, days 10 13 14 13 13 14 10 8 7 6 5 7 120
Thunderstorms, days 2 1 0 0 0 0 1 2 3 3 4 4 20
Snowfall, cm. 0 0 0 0 0 8 27 0 0 0 0 0 35
Average precipitation, mm. 50 62 53 63 56 44 51 47 61 49 55 48 638
Relative humidity, % 76 81 86 88 86 82 76 72 72 74 72 75 78
Relative humidity morning, % 91 92 91 89 89 87 87 86 86 86 85 87 88
Relative humidity evening, % 59 69 76 81 79 71 65 58 57 58 54 51 65
Wind speed, km/h 16 16 19 19 20 9 17 16 16 16 16 14 16
Monthly sunshine, часов 168 118 68 51 63 79 129 166 194 202 212 212 1662
Day Length, часов 13 11 10 9 9 11 13 14 16 17 16 15 13
Dew point, °C 11 8 4 2 0 1 3 5 8 11 12 12 77
Growing degree-day, °C 167 34 0 0 0 0 0 0 95 183 258 250 987
Solar radiation, global, Mj/m2 11 7 4 3 3 6 10 14 18 19 19 17 11

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