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San Juan County (Oljato-Monument Valley)
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United States weather

Weather in San Juan County, Utah for December 2025

Your guide to San Juan County weather in December - trends and predictions

    Temperatures

  • So far, December 2025 in San Juan County is slightly warmer than the historical average by 1.2 °F.

  • The forecast for the next days in San Juan County predicts temperatures to be around 11 °F, close to the historical average.

  • In general, the average temperature in San Juan County at the beginning of December is 6 °F. As the month progressed, temperatures tended to significantly warm up, reaching an average of 9.4 °F by the end of December.

    • Rain 🌧️

  • With an average of 2 rainy days, San Juan County experiences minimal rainfall in December.

    • More

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Average dry days
29
Dry days
Average rainy days
2
Rainy days
Average snowy days
0
Snow days
Average temperatures
7°/-1°
Temperatures
Average wind speed
12 km/h
Avg max wind
Average humidity
56 %
Avg humidity

San Juan County Weather December

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

Temperatures trend during December in San Juan County

See the weather trend as well as the moving average line

December weather in San Juan County day by day

Click on a date for more information
November January
Date Weather Temperatures Rain UV More
Dec. 1 Overcast
Overcast
 5° /-2° 0 mm 2
Dec. 2 Sunny
Sunny
 6° /-2° 0 mm 3
Dec. 3 Partly cloudy
Partly cloudy
 4° /-1° 0 mm 2
Dec. 4 Partly cloudy
Partly cloudy
 5° /-3° 0 mm 2
Dec. 5 Sunny
Sunny
 7° /-2° 0 mm 3
Dec. 6 Sunny
Sunny
 9° /0° 0 mm 4
Dec. 7 Sunny
Sunny
 6° /-1° 0 mm 3
Dec. 8 Overcast
Overcast
 8° /-2° 0 mm 3
Dec. 9 Partly cloudy
Partly cloudy
 6° /-2° 0 mm 3
Dec. 10 Sunny
Sunny
 6° /-1° 0 mm 3
Dec. 11 Sunny
Sunny
 9° /-1° 0 mm 3
Dec. 12 Partly cloudy
Partly cloudy
 8° /-1° 0.1 mm 3
Dec. 13 Sunny
Sunny
 9° /-1° 0 mm 4
Dec. 14 Overcast
Overcast
 8° /-1° 0 mm 2
Dec. 15 Sunny
Sunny
 9° /0° 0 mm 4
Dec. 16 Overcast
Overcast
 8° /-2° 0 mm 3
Dec. 17 Partly cloudy
Partly cloudy
 12° /-1° 0 mm 4
Dec. 18 Sunny
Sunny
 8° /-1° 0 mm 4
Dec. 19 Partly cloudy
Partly cloudy
 10° /0° 0 mm 3
Dec. 20 Partly cloudy
Partly cloudy
 7° /-1° 0 mm 3
Dec. 21 Overcast
Overcast
 13° /-2° 0 mm 0.5
Dec. 22 Partly cloudy
Partly cloudy
 14° /-1° 0 mm 0.5
Dec. 23 Overcast
Overcast
 11° /-1° 0 mm 0.5
Dec. 24 Patchy rain possible
Patchy rain possible
 15° /8° 0.4 mm 0.4
Dec. 25 Patchy rain possible
Patchy rain possible
 11° /6° 0.3 mm 0
Dec. 26 Patchy rain possible
Patchy rain possible
 11° /6° 0 mm 2
Dec. 27 Sunny
Sunny
 12° /5° 0 mm 3
Dec. 28 Patchy rain possible
Patchy rain possible
 9° /6° 2.1 mm 2
Dec. 29 Partly cloudy
Partly cloudy
 8° /4° 0.1 mm 3
Dec. 30 Sunny
Sunny
 8° /2° 0 mm 2
Dec. 31 Sunny
Sunny
 7° /1° 0 mm 2
Next
Important Notice
Our weather forecast for San Juan 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 San Juan County forecast closer to your planned date for the most up-to-date weather information.
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San Juan County in December - FAQ

What are the expected maximum and minimum temperatures in San Juan County during December?
Prepare for cooler days with highs just around 7° and colder nights, dipping below -1°.
How much rainfall should be expected in San Juan County during December?
Expect minimal rainfall in San Juan County during December, with a total of 14.2 mm over approximately 2 days. This minimal precipitation is unlikely to significantly impact plans.
Will it snow in San Juan County in December 2025?
San Juan County typically sees 0 cm of snowfall during December.
What are the typical wind conditions in San Juan County during December?
The average wind speed in San Juan County during December is 12 km/h, suggesting breezy to windy conditions, depending on your activities.

December rainfall patterns in San Juan County

Explore the daily rainfall trends and prepare for San Juan Countys December weather 💧
Typically, San Juan County has 2 rainy days in December with a total of 14.2 mm of rainfall.
Top locations in San Juan County
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Oljato-Monument ValleySilverton
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Location coordinates Where is San Juan County?

Get accurate weather forecasts for San Juan County, located at latitude 37.031 and longitude -110.251. Stay updated with localized weather information tailored for San Juan County.

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