December

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December

Grass Valley Weather December

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November

January

Temperatures trend during December in Grass Valley

See the weather trend as well as the moving average line

December weather in Grass Valley day by day

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November January

Date	Weather	Temperatures	Rain	UV
Dec. 1	Partly cloudy	15° /5°	0 mm	5
Dec. 2	Sunny	17° /8°	0 mm	5
Dec. 3	Sunny	16° /6°	0 mm	5
Dec. 4	Sunny	14° /6°	0 mm	4
Dec. 5	Cloudy	14° /7°	0 mm	4
Dec. 6	Sunny	15° /8°	0 mm	5
Dec. 7	Overcast	15° /8°	0 mm	4
Dec. 8	Partly cloudy	15° /8°	0 mm	5
Dec. 9	Sunny	16° /7°	0 mm	5
Dec. 10	Sunny	16° /6°	0 mm	5
Dec. 11	Overcast	17° /8°	0 mm	5
Dec. 12	Moderate or heavy rain shower	13° /7°	18.2 mm	4
Dec. 13	Heavy rain at times	14° /7°	4.4 mm	4
Dec. 14	Moderate or heavy rain shower	13° /8°	41.3 mm	4
Dec. 15	Partly cloudy	13° /6°	0 mm	4
Dec. 16	Moderate or heavy rain shower	13° /9°	13.3 mm	3
Dec. 17	Partly cloudy	14° /8°	13.3 mm	4
Dec. 18	Overcast	15° /7°	0 mm	4
Dec. 19	Sunny	14° /7°	32.2 mm	4
Dec. 20	Cloudy	14° /8°	42.4 mm	2
Dec. 21	Moderate or heavy rain shower	12° /9°	168.9 mm	2
Dec. 22	Heavy rain at times	12° /9°	75.2 mm	2
Dec. 23	Moderate rain at times	14° /11°	5.2 mm	2
Dec. 24	Moderate or heavy rain shower	13° /7°	63.6 mm	2
Dec. 25	Overcast	9° /4°	55.7 mm	1
Dec. 26	Moderate or heavy rain shower	8° /5°	67.3 mm	1
Dec. 27	Moderate or heavy rain shower	9° /5°	17 mm	1
Dec. 28	Moderate or heavy rain shower	11° /4°	7.9 mm	2
Dec. 29	Moderate or heavy rain shower	12° /5°	37.8 mm	2
Dec. 30	Overcast	12° /5°	0.5 mm	2
Dec. 31	Cloudy	11° /6°	3.2 mm	1
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Important Notice

Our weather forecast for Grass Valley in December is based on the analysis of historical data rather than real-time forecast models. While this provides a general overview, weather conditions can change. We recommend that you check the Grass Valley forecast closer to your planned date for the most up-to-date weather information.

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Grass Valley in December - FAQ

What are the expected maximum and minimum temperatures in Grass Valley during December?

During December, expect a variety of temperatures with highs around 13° and lows near 5°, suitable for diverse activities and preferences.

How much rainfall should be expected in Grass Valley during December?

Significant rainfall exceeding 450.1 mm is expected in Grass Valley during December, occurring over more than 13 days. Preparing for wet conditions is recommended in your planning.

What are the typical wind conditions in Grass Valley during December?

The average wind speed in Grass Valley during December is 12 km/h, suggesting breezy to windy conditions, depending on your activities.

December rainfall patterns in Grass Valley

Explore the daily rainfall trends and prepare for Grass Valleys December weather 💧

Typically, Grass Valley has 13 rainy days in December with a total of 450.1 mm of rainfall.

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Get accurate weather forecasts for Grass Valley, located at latitude 39.219 and longitude -121.061. Stay updated with localized weather information tailored for Grass Valley.

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Sun.	Mon.	Tue.	Wed.	Thu.	Fri.	Sat.
		1 15°	2 17°	3 16°	4 14°	5 14°
6 15°	7 15°	8 15°	9 16°	10 16°	11 17°	12 13°
13 14°	14 13°	15 13°	16 13°	17 14°	18 15°	19 14°
20 14°	21 12°	22 12°	23 14°	24 13°	25 9°	26 8°
27 9°	28 11°	29 12°	30 12°	31 11°