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United States weather

Weather in Summit County, Utah for May 2026

Your guide to Summit County weather in May - trends and predictions

    Snow Forecast ❄️

  • Summit County typically experiences moderate snowfall in May, with an average of 9 snowy days.
    According to Summit County snow forecast for May 2026, 2 snowy days are expected at the beginning of May. The first snowfall for May is expected in Monday, May 4.

    • Temperatures

  • Expect cooler weather in first days of May 2026 in Summit County with the forecast suggesting a temperature of 9.9 °F, lower than the historical average.

  • In general, the average temperature in Summit County at the beginning of May is 10.6 °F. As the month progressed, temperatures tended to significantly warm up, reaching an average of 19 °F by the end of May.

    • More

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Average dry days
17
Dry days
Average rainy days
5
Rainy days
Average snowy days
9
Snow days
Average temperatures
14°/1°
Temperatures
Average wind speed
16 km/h
Avg max wind
Average humidity
60 %
Avg humidity

Summit County Weather May

Move between months or click on a day
April
June
Sun.Mon.Tue.Wed.Thu.Fri.Sat.
1
Patchy rain possible
11°
2
Patchy rain possible
13°
3
Partly cloudy
15°
4
Moderate rain
11°
5
Patchy rain possible
5°
6
Sunny
12°
7
Moderate or heavy snow with thunder
7°
8
Light snow showers
10°
9
Patchy light rain with thunder
14°
10
Patchy light rain with thunder
16°
11
Moderate rain at times
17°
12
Patchy rain possible
18°
13
Sunny
17°
14
Patchy rain possible
9°
15
Patchy light rain with thunder
11°
16
Sunny
14°
17
Sunny
16°
18
Patchy rain possible
11°
19
Patchy rain possible
11°
20
Moderate or heavy snow with thunder
10°
21
Moderate or heavy snow with thunder
12°
22
Patchy rain possible
18°
23
Patchy light snow
14°
24
Thundery outbreaks possible
15°
25
Moderate or heavy snow with thunder
14°
26
Sunny
17°
27
Sunny
20°
28
Thundery outbreaks possible
20°
29
Patchy light rain with thunder
21°
30
Sunny
19°
31
Partly cloudy
22°

Temperatures trend during May in Summit County

See the weather trend as well as the moving average line

May weather in Summit County day by day

Click on a date for more information
April June
Date Weather Temperatures Rain Snow More
May 1 Patchy rain possible
Patchy rain possible
 11° /0° 0.1 mm 0 cm
May 2 Patchy rain possible
Patchy rain possible
 13° /1° 0.2 mm 0 cm
May 3 Partly cloudy
Partly cloudy
 15° /4° 0 mm 0 cm
May 4 Moderate rain
Moderate rain
 11° /1° 11 mm 7 cm
May 5 Patchy rain possible
Patchy rain possible
 5° /-3° 1.6 mm 1.1 cm
May 6 Sunny
Sunny
 12° /-2° 0 mm 0 cm
May 7 Moderate or heavy snow with thunder
Moderate or heavy snow with thunder
 7° /-2° 7.6 mm 5.4 cm
May 8 Light snow showers
Light snow showers
 10° /-3° 1 mm 0.7 cm
May 9 Patchy light rain with thunder
Patchy light rain with thunder
 14° /-1° 1.2 mm 0 cm
May 10 Patchy light rain with thunder
Patchy light rain with thunder
 16° /0° 1.8 mm 0 cm
May 11 Moderate rain at times
Moderate rain at times
 17° /3° 0.7 mm 0 cm
May 12 Patchy rain possible
Patchy rain possible
 18° /4° 0.3 mm 0 cm
May 13 Sunny
Sunny
 17° /4° 0 mm 0 cm
May 14 Patchy rain possible
Patchy rain possible
 9° /2° 0.1 mm 0 cm
May 15 Patchy light rain with thunder
Patchy light rain with thunder
 11° /2° 0.8 mm 0 cm
May 16 Sunny
Sunny
 14° /2° 1.9 mm 0 cm
May 17 Sunny
Sunny
 16° /4° 0 mm 0 cm
May 18 Patchy rain possible
Patchy rain possible
 11° /0° 35.5 mm 21.1 cm
May 19 Patchy rain possible
Patchy rain possible
 11° /0° 0.6 mm 0 cm
May 20 Moderate or heavy snow with thunder
Moderate or heavy snow with thunder
 10° /-2° 4.3 mm 2.2 cm
May 21 Moderate or heavy snow with thunder
Moderate or heavy snow with thunder
 12° /0° 1.8 mm 1.1 cm
May 22 Patchy rain possible
Patchy rain possible
 18° /1° 0 mm 0 cm
May 23 Patchy light snow
Patchy light snow
 14° /1° 0.1 mm 0 cm
May 24 Thundery outbreaks possible
Thundery outbreaks possible
 15° /1° 0.3 mm 0 cm
May 25 Moderate or heavy snow with thunder
Moderate or heavy snow with thunder
 14° /3° 6.9 mm 1.7 cm
May 26 Sunny
Sunny
 17° /1° 0 mm 0 cm
May 27 Sunny
Sunny
 20° /4° 0 mm 0 cm
May 28 Thundery outbreaks possible
Thundery outbreaks possible
 20° /6° 0 mm 0 cm
May 29 Patchy light rain with thunder
Patchy light rain with thunder
 21° /6° 1 mm 0 cm
May 30 Sunny
Sunny
 19° /5° 0 mm 0 cm
May 31 Partly cloudy
Partly cloudy
 22° /5° 0 mm 0 cm
Next
Important Notice
Our weather forecast for Summit 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 Summit County forecast closer to your planned date for the most up-to-date weather information.
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Summit County in May - FAQ

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

Prepare for cooler days with highs just around 14° and colder nights, dipping below 1°.

How much rainfall should be expected in Summit County during May?

Significant rainfall exceeding 115.4 mm is expected in Summit County during May, occurring over more than 5 days. Preparing for wet conditions is recommended in your planning.

Will it snow in Summit County in May 2026?

Summit County experiences an average snowfall of 53.48 cm during May, occurring over 9 days.

What are the typical wind conditions in Summit County during May?

The average wind speed in Summit County during May is 16 km/h, suggesting breezy to windy conditions, depending on your activities.

Summit County snow forecast May 2026

Track daily snowfall levels and discover Summit County’s snowy potential this May ❄️
On average, Summit County sees 9 snowy days during May, with approximately 53.5 cm of total snowfall.

May rainfall patterns in Summit County

Explore the daily rainfall trends and prepare for Summit Countys May weather 💧
Typically, Summit County has 5 rainy days in May with a total of 115.4 mm of rainfall.

UV exposure in Summit County during May

Stay informed about UV levels for safe outdoor activities throughout the month of May ☀️
Top locations in Summit County
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AkronBreckenridgePark City
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Location coordinates Where is Summit County?

Get accurate weather forecasts for Summit County, located at latitude 40.646 and longitude -111.498. Stay updated with localized weather information tailored for Summit County.

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