Weather Averages Alta, CA

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Weather Averages for
Alta, CA



Latitude: 39°17'N, Longitude: 120°42'W, Elevation: 1609.3 m, Distance: 2.47 km

  Unit Year Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Average temperature
over 48 years
°C 10 2 3 3 6 11 15 20 19 16 12 6 3
Average high temperature
over 48 years
°C 14 6 7 7 11 15 20 25 24 22 17 10 7
Average low temperature
over 48 years
°C 5 0 0 0 2 6 10 14 14 11 7 2 0
Highest recorded temperature
over 44 years
°C 36 21 22 22 27 31 33 35 36 33 31 25 23
Lowest recorded temperature
over 44 years
°C -16 -15 -14 -12 -8 -6 -2 2 1 -2 -8 -10 -16
Average number of rainy days
over 49 years
days 90 12 11 13 10 7 3 1 1 3 6 11 12
Average precipitation
over 48 years
cm 174.2 32.8 25.9 24.1 13.2 6.9 2.0 0.8 1.3 2.8 9.9 24.4 30.2
Average morning relative humidity
over 13 years
% 54 56 61 66 61 55 47 41 43 49 50 57 56
Average evening relative humidity
over 13 years
% 50 58 61 61 54 47 39 34 34 42 48 60 59
Average wind speed
over 15 years
km/h 10.9 12.7 12.7 12.4 10.6 10.6 10.3 9.3 9.5 10.3 11.1 11.4 10.9
Average number of days below -1.5°C
over 44 years
days 97 18 16 18 11 4 - - - - 2 10 15
Average snowfall
over 48 years
cm 639.6 129.3 113.3 133.3 67.6 19.3 1.8 - - 1.0 7.4 62.5 104.4
Average number of clear days
over 31 years
days 174 9 8 9 10 12 19 26 25 23 16 10 9
Average snow cover
over 48 years
cm 20.3 50.8 66.0 66.0 38.1 5.1 - - - - - 7.6 25.4
Average number of cloudy days
over 31 years
days 126 17 15 17 13 11 6 1 2 3 9 15 17
Average number of partly cloudy days
over 31 years
days 64 5 5 5 7 8 5 4 4 4 6 5 5