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Grass Valley, Oregon Climate Averages

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Grass Valley Monthly Climate Averages

January
February
March
April
May
June
July
August
September
October
November
December
Hi 41°F Lo 30°F Hi 45°F Lo 31°F Hi 52°F Lo 35°F Hi 59°F Lo 40°F Hi 69°F Lo 47°F Hi 77°F Lo 53°F Hi 87°F Lo 59°F Hi 87°F Lo 61°F Hi 77°F Lo 54°F Hi 63°F Lo 45°F Hi 48°F Lo 35°F Hi 40°F Lo 29°F
5 mph 6 mph 6 mph 7 mph 7 mph 8 mph 8 mph 7 mph 6 mph 5 mph 5 mph 5 mph
4.1 in 2.9 in 2.9 in 1.7 in 1.2 in 0.6 in 0.1 in 0.2 in 0.8 in 2.3 in 3.2 in 4.3 in
84% 81% 75% 66% 60% 54% 46% 45% 52% 63% 76% 84%
52% 47% 43% 36% 27% 19% 8% 9% 18% 29% 40% 51%
30.1 in 30.1 in 30.0 in 30.0 in 30.0 in 30.0 in 30.0 in 29.9 in 30.0 in 30.0 in 30.1 in 30.1 in
18 17 22 25 26 28 31 30 28 25 22 16
10 9 8 5 5 2 0 1 2 6 8 10
3 3 1 0 0 0 0 0 0 0 0 5
1 1 1 0 0 0 0 0 0 0 1 1
2 2 3 3 4 6 7 5 4 3 2 2
142 141 169 200 257 294 349 347 292 236 172 142
January
February
March
April
May
June
July
August
September
October
November
December
Hi 5°C Lo -1°C Hi 7°C Lo -1°C Hi 11°C Lo 2°C Hi 15°C Lo 4°C Hi 21°C Lo 8°C Hi 25°C Lo 12°C Hi 31°C Lo 15°C Hi 30°C Lo 16°C Hi 25°C Lo 12°C Hi 17°C Lo 7°C Hi 9°C Lo 2°C Hi 5°C Lo -2°C
7 km/h 9 km/h 9 km/h 11 km/h 11 km/h 12 km/h 12 km/h 11 km/h 10 km/h 8 km/h 8 km/h 7 km/h
103 mm 74 mm 72 mm 44 mm 31 mm 15 mm 2 mm 4 mm 21 mm 58 mm 82 mm 110 mm
84% 81% 75% 66% 60% 54% 46% 45% 52% 63% 76% 84%
52% 47% 43% 36% 27% 19% 8% 9% 18% 29% 40% 51%
1021 mb 1019 mb 1017 mb 1017 mb 1015 mb 1014 mb 1015 mb 1014 mb 1015 mb 1017 mb 1019 mb 1020 mb
18 17 22 25 26 28 31 30 28 25 22 16
10 9 8 5 5 2 0 1 2 6 8 10
3 3 1 0 0 0 0 0 0 0 0 5
1 1 1 0 0 0 0 0 0 0 1 1
2 2 3 3 4 6 7 5 4 3 2 2
142 141 169 200 257 294 349 347 292 236 172 142
Month
Avg. Temperatures
Avg. Wind Speed
Avg. Precipitation
Average Humidity
Avg. Cloud Cover
Pressure Average
Average Dry Days
Avg. Precip. Days
Avg. Snow Days
Average Fog Days
Average UV Index
Avg. Hours of Sun
Averages are based on historical weather data from the past 10 years.

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