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Weather in San Juan County, Utah for May 2027

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

    Temperatures

  • In general, the average temperature in San Juan County at the beginning of May is 18.1 °C. As the month progressed, temperatures tended to significantly warm up, reaching an average of 25.1 °C by the end of May.

  • Rain 🌧️

  • With an average of 3 rainy days, San Juan County experiences minimal rainfall in May.

  • More

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Average dry days
28
Dry days
Average rainy days
3
Rainy days
Average snowy days
0
Snow days
Average temperatures
23°/9°
Temperatures
Average wind speed
24 km/h
Avg max wind
Average humidity
29 %
Avg humidity

San Juan County Weather May

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Temperatures trend during May in San Juan County

See the weather trend as well as the moving average line

May weather in San Juan County day by day

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Date Weather Temperatures Rain UV More
May 1 Patchy rain possible
Patchy rain possible
17° /7° 0.5 mm 8
May 2 Overcast
Overcast
20° /7° 0 mm 8
May 3 Overcast
Overcast
22° /6° 0.1 mm 8
May 4 Moderate or heavy rain shower
Moderate or heavy rain shower
19° /8° 3.2 mm 7
May 5 Heavy rain at times
Heavy rain at times
14° /6° 1.2 mm 8
May 6 Overcast
Overcast
16° /5° 0.1 mm 8
May 7 Patchy rain possible
Patchy rain possible
19° /6° 0.9 mm 8
May 8 Sunny
Sunny
24° /8° 0 mm 9
May 9 Sunny
Sunny
25° /12° 0 mm 9
May 10 Partly cloudy
Partly cloudy
24° /11° 0 mm 9
May 11 Partly cloudy
Partly cloudy
27° /11° 0 mm 10
May 12 Partly cloudy
Partly cloudy
29° /13° 0 mm 10
May 13 Sunny
Sunny
26° /14° 0.4 mm 10
May 14 Patchy rain possible
Patchy rain possible
20° /8° 0.1 mm 8
May 15 Sunny
Sunny
24° /8° 0.1 mm 9
May 16 Sunny
Sunny
24° /9° 0 mm 9
May 17 Overcast
Overcast
24° /10° 0 mm 9
May 18 Moderate rain at times
Moderate rain at times
17° /6° 1.4 mm 8
May 19 Patchy rain possible
Patchy rain possible
17° /5° 0.4 mm 8
May 20 Sunny
Sunny
21° /5° 0 mm 9
May 21 Sunny
Sunny
27° /8° 0 mm 7
May 22 Sunny
Sunny
26° /11° 0 mm 10
May 23 Sunny
Sunny
27° /11° 0 mm 10
May 24 Overcast
Overcast
26° /11° 0.2 mm 10
May 25 Sunny
Sunny
23° /11° 0.2 mm 10
May 26 Partly cloudy
Partly cloudy
24° /9° 1.9 mm 10
May 27 Overcast
Overcast
25° /10° 0 mm 10
May 28 Overcast
Overcast
26° /11° 0 mm 10
May 29 Overcast
Overcast
24° /12° 0 mm 10
May 30 Partly cloudy
Partly cloudy
26° /10° 0 mm 10
May 31 Sunny
Sunny
28° /13° 0 mm 11
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Important Notice
Our weather forecast for San Juan County in May 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.

San Juan County in May - FAQ

What are the expected maximum and minimum temperatures in San Juan County during May?

Enjoy moderate daytime temperatures of up to 23° and cooler nights around 9°. Ideal for a range of outdoor activities, from hiking to city tours.

How much rainfall should be expected in San Juan County during May?

Rainfall in San Juan County during May is rare to nonexistent, with the total expected rainfall being less than 10 mm and approximately 3 days seeing any precipitation. Planning without the concern for rain is generally straightforward during this very dry period.

What are the typical wind conditions in San Juan County during May?

The average wind speed in San Juan County during May is 24 km/h, suggesting breezy to windy conditions, depending on your activities.

May rainfall patterns in San Juan County

Explore the daily rainfall trends and prepare for San Juan Countys May weather 💧
Typically, San Juan County has 3 rainy days in May with a total of 8.4 mm of rainfall.

UV exposure in San Juan County during May

Stay informed about UV levels for safe outdoor activities throughout the month of May ☀️
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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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