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Mariposa County (Yosemite National Park)
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Weather in Mariposa County, California for December 2026

Your guide to Mariposa County weather in December - trends and predictions

    Snow Forecast ❄️

  • Mariposa County typically experiences moderate snowfall in December, with an average of 10 snowy days.

    • Temperatures

  • In general, the average temperature in Mariposa County at the beginning of December is 8 °F. As the month progressed, temperatures tended to significantly cool down, reaching an average of 3.3 °F by the end of December.

    • More

  • New! Chat with our AI weatherman - it’s amazing and free.

Average dry days
21
Dry days
Average rainy days
0
Rainy days
Average snowy days
10
Snow days
Average temperatures
5°/-2°
Temperatures
Average wind speed
15 km/h
Avg max wind
Average humidity
56 %
Avg humidity

Mariposa County Weather December

Move between months or click on a day
November
January
Sun.Mon.Tue.Wed.Thu.Fri.Sat.
1
Cloudy
8°
2
Sunny
9°
3
Cloudy
5°
4
Sunny
8°
5
Overcast
9°
6
Sunny
9°
7
Overcast
8°
8
Cloudy
8°
9
Sunny
10°
10
Sunny
11°
11
Partly cloudy
11°
12
Heavy snow
6°
13
Moderate snow
5°
14
Heavy snow
5°
15
Partly cloudy
7°
16
Cloudy
6°
17
Partly cloudy
5°
18
Cloudy
8°
19
Partly cloudy
7°
20
Partly cloudy
5°
21
Overcast
3°
22
Moderate or heavy snow showers
2°
23
Overcast
5°
24
Moderate or heavy snow showers
2°
25
Partly cloudy
2°
26
Moderate or heavy snow showers
0°
27
Heavy snow
1°
28
Mist
4°
29
Moderate or heavy snow showers
5°
30
Overcast
6°
31
Overcast
5°

Temperatures trend during December in Mariposa County

See the weather trend as well as the moving average line

December weather in Mariposa County day by day

Click on a date for more information
November January
Date Weather Temperatures Rain Snow More
Dec. 1 Cloudy
Cloudy
 8° /0° 0 mm 0 cm
Dec. 2 Sunny
Sunny
 9° /0° 0 mm 0 cm
Dec. 3 Cloudy
Cloudy
 5° /-2° 0 mm 0 cm
Dec. 4 Sunny
Sunny
 8° /-1° 0 mm 0 cm
Dec. 5 Overcast
Overcast
 9° /0° 0 mm 0 cm
Dec. 6 Sunny
Sunny
 9° /2° 0 mm 0 cm
Dec. 7 Overcast
Overcast
 8° /1° 0 mm 0 cm
Dec. 8 Cloudy
Cloudy
 8° /3° 0 mm 0 cm
Dec. 9 Sunny
Sunny
 10° /3° 0 mm 0 cm
Dec. 10 Sunny
Sunny
 11° /3° 0 mm 0 cm
Dec. 11 Partly cloudy
Partly cloudy
 11° /4° 0 mm 0 cm
Dec. 12 Heavy snow
Heavy snow
 6° /0° 23.2 mm 12.1 cm
Dec. 13 Moderate snow
Moderate snow
 5° /-2° 1.6 mm 1.1 cm
Dec. 14 Heavy snow
Heavy snow
 5° /-3° 40.8 mm 11.8 cm
Dec. 15 Partly cloudy
Partly cloudy
 7° /-2° 0.9 mm 0.6 cm
Dec. 16 Cloudy
Cloudy
 6° /1° 0 mm 0 cm
Dec. 17 Partly cloudy
Partly cloudy
 5° /0° 4 mm 2.9 cm
Dec. 18 Cloudy
Cloudy
 8° /3° 0 mm 0 cm
Dec. 19 Partly cloudy
Partly cloudy
 7° /1° 8.4 mm 3.1 cm
Dec. 20 Partly cloudy
Partly cloudy
 5° /1° 21.8 mm 10.6 cm
Dec. 21 Overcast
Overcast
 3° /1° 116.3 mm 84 cm
Dec. 22 Moderate or heavy snow showers
Moderate or heavy snow showers
 2° /0° 91.9 mm 65.7 cm
Dec. 23 Overcast
Overcast
 5° /0° 0 mm 0 cm
Dec. 24 Moderate or heavy snow showers
Moderate or heavy snow showers
 2° /-5° 127.6 mm 50.7 cm
Dec. 25 Partly cloudy
Partly cloudy
 2° /-6° 86.3 mm 15.7 cm
Dec. 26 Moderate or heavy snow showers
Moderate or heavy snow showers
 0° /-5° 90.2 mm 10.4 cm
Dec. 27 Heavy snow
Heavy snow
 1° /-8° 41.4 mm 29.9 cm
Dec. 28 Mist
Mist
 4° /-5° 0 mm 0 cm
Dec. 29 Moderate or heavy snow showers
Moderate or heavy snow showers
 5° /-4° 22.9 mm 16.5 cm
Dec. 30 Overcast
Overcast
 6° /-3° 0 mm 0 cm
Dec. 31 Overcast
Overcast
 5° /-1° 1.4 mm 0 cm
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Important Notice
Our weather forecast for Mariposa County 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 Mariposa County forecast closer to your planned date for the most up-to-date weather information.
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Mariposa County in December - FAQ

What are the expected maximum and minimum temperatures in Mariposa County during December?

Brace for cold days with temperatures not exceeding 5° and nights that are likely to be freezing. Winter clothing is essential for comfort and safety.

How much rainfall should be expected in Mariposa County during December?

Significant rainfall exceeding 367.5 mm is expected in Mariposa County during December, occurring over more than 0 days. Preparing for wet conditions is recommended in your planning.

Will it snow in Mariposa County in December 2026?

Mariposa County experiences an average snowfall of 219.75 cm during December, occurring over 10 days.

What are the typical wind conditions in Mariposa County during December?

The average wind speed in Mariposa County during December is 15 km/h, suggesting breezy to windy conditions, depending on your activities.

Mariposa County snow forecast December 2026

Track daily snowfall levels and discover Mariposa County’s snowy potential this December ❄️
On average, Mariposa County sees 10 snowy days during December, with approximately 219.8 cm of total snowfall.

December rainfall patterns in Mariposa County

Explore the daily rainfall trends and prepare for Mariposa Countys December weather 💧
Top locations in Mariposa County
Select a location for an accurate weather forecast
Yosemite National ParkYosemite Valley
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Location coordinates Where is Mariposa County?

Get accurate weather forecasts for Mariposa County, located at latitude 37.848 and longitude -119.557. Stay updated with localized weather information tailored for Mariposa County.

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