San Juan County (Oljato-Monument Valley)
December
Weather in San Juan County, Utah for December 2025
Your guide to San Juan County weather in December - trends and predictions
In general, the average temperature in San Juan County at the beginning of December is 6.7 °F. As the month progressed, temperatures tended to slightly increase, reaching an average of 7.1 °F by the end of December.
With an average of 2 rainy days, San Juan County experiences minimal rainfall in December.
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Temperatures
Rain 🌧️
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29
Dry days
2
Rainy days
0
Snow days
7°/-1°
Temperatures
12 km/h
Avg max wind
56 %
Avg humidity
San Juan County Weather December
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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
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| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| Dec. 1 |  Overcast | 6° /-2° | 0 mm | 2 | |
| Dec. 2 |  Sunny | 6° /-1° | 0 mm | 3 | |
| Dec. 3 |  Partly cloudy | 7° /0° | 0 mm | 3 | |
| Dec. 4 | Partly cloudy | 7° /0° | 0 mm | 3 | |
| Dec. 5 | Sunny | 7° /0° | 0 mm | 3 | |
| Dec. 6 | Sunny | 7° /0° | 0 mm | 3 | |
| Dec. 7 | Sunny | 7° /-1° | 0 mm | 3 | |
| Dec. 8 | Overcast | 9° /-3° | 0 mm | 2 | |
| Dec. 9 | Partly cloudy | 1° /-3° | 0 mm | 2 | |
| Dec. 10 | Sunny | 1° /-4° | 0 mm | 2 | |
| Dec. 11 | Sunny | 4° /-5° | 0 mm | 2 | |
| Dec. 12 | Partly cloudy | 4° /-4° | 0.2 mm | 2 | |
| Dec. 13 | Sunny | 6° /-2° | 0 mm | 3 | |
| Dec. 14 | Overcast | 6° /-2° | 0 mm | 2 | |
| Dec. 15 | Sunny | 8° /-1° | 0 mm | 3 | |
| Dec. 16 | Overcast | 4° /-3° | 0 mm | 1 | |
| Dec. 17 | Partly cloudy | 9° /-1° | 0 mm | 3 | |
| Dec. 18 | Sunny | 5° /-1° | 0 mm | 3 | |
| Dec. 19 | Partly cloudy | 6° /0° | 0 mm | 3 | |
| Dec. 20 | Partly cloudy | 7° /-1° | 0 mm | 3 | |
| Dec. 21 | Partly cloudy | 7° /0° | 0 mm | 3 | |
| Dec. 22 | Overcast | 8° /-1° | 0 mm | 2 | |
| Dec. 23 | Overcast | 10° /2° | 0 mm | 3 | |
| Dec. 24 | Overcast | 9° /0° | 0.9 mm | 2 | |
| Dec. 25 |  Moderate or heavy rain shower | 4° /-2° | 12.9 mm | 1 | |
| Dec. 26 | Overcast | 6° /-2° | 0 mm | 2 | |
| Dec. 27 | Overcast | 8° /0° | 0.2 mm | 2 | |
| Dec. 28 | Partly cloudy | 10° /0° | 0 mm | 3 | |
| Dec. 29 | Sunny | 12° /0° | 0 mm | 4 | |
| Dec. 30 | Sunny | 8° /-1° | 0 mm | 3 | |
| Dec. 31 | Sunny | 2° /-4° | 0 mm | 2 | |
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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 💧
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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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