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Weather in Arapahoe County, Colorado for May 2026

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

    Snow Forecast ❄️

  • Snowfall in Arapahoe County during May is quite rare, with fewer than 2 snowy days on average.

    • Temperatures

  • In general, the average temperature in Arapahoe County at the beginning of May is 16.9 °F. As the month progressed, temperatures tended to significantly warm up, reaching an average of 21.9 °F by the end of May.

    • Rain 🌧️

  • The climate of Arapahoe County in May is notably wet, with an average of 15 rainy days, and a total of 172.6 mm of precipitation.

    • More

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

Average dry days
15
Dry days
Average rainy days
15
Rainy days
Average snowy days
1
Snow days
Average temperatures
20°/8°
Temperatures
Average wind speed
21 km/h
Avg max wind
Average humidity
51 %
Avg humidity

Arapahoe County Weather May

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

Temperatures trend during May in Arapahoe County

See the weather trend as well as the moving average line

May weather in Arapahoe 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
 16° /6° 3.7 mm 0 cm
May 2 Overcast
Overcast
 16° /6° 0.1 mm 0 cm
May 3 Patchy rain possible
Patchy rain possible
 21° /4° 0 mm 0 cm
May 4 Patchy light drizzle
Patchy light drizzle
 21° /5° 0.6 mm 0 cm
May 5 Overcast
Overcast
 20° /8° 14.8 mm 0 cm
May 6 Partly cloudy
Partly cloudy
 13° /4° 51.3 mm 0 cm
May 7 Patchy rain possible
Patchy rain possible
 11° /5° 33.1 mm 0 cm
May 8 Partly cloudy
Partly cloudy
 16° /2° 0.1 mm 0 cm
May 9 Light sleet showers
Light sleet showers
 17° /4° 3.7 mm 0.8 cm
May 10 Thundery outbreaks possible
Thundery outbreaks possible
 18° /4° 0.2 mm 0 cm
May 11 Patchy light rain with thunder
Patchy light rain with thunder
 22° /6° 2.3 mm 0 cm
May 12 Patchy light rain with thunder
Patchy light rain with thunder
 23° /8° 3.4 mm 0 cm
May 13 Patchy rain possible
Patchy rain possible
 24° /9° 0.5 mm 0 cm
May 14 Patchy rain possible
Patchy rain possible
 22° /9° 0.3 mm 0 cm
May 15 Patchy light rain with thunder
Patchy light rain with thunder
 18° /8° 8 mm 0 cm
May 16 Sunny
Sunny
 21° /7° 0.2 mm 0 cm
May 17 Partly cloudy
Partly cloudy
 24° /10° 0 mm 0 cm
May 18 Moderate rain at times
Moderate rain at times
 22° /10° 2.9 mm 0 cm
May 19 Patchy rain possible
Patchy rain possible
 21° /9° 0 mm 0 cm
May 20 Overcast
Overcast
 23° /7° 0 mm 0 cm
May 21 Patchy light rain with thunder
Patchy light rain with thunder
 20° /6° 1.4 mm 0 cm
May 22 Sunny
Sunny
 23° /7° 0 mm 0 cm
May 23 Partly cloudy
Partly cloudy
 27° /9° 0 mm 0 cm
May 24 Patchy rain possible
Patchy rain possible
 19° /8° 11.9 mm 0 cm
May 25 Overcast
Overcast
 19° /9° 15 mm 0 cm
May 26 Sunny
Sunny
 17° /8° 10.1 mm 0 cm
May 27 Partly cloudy
Partly cloudy
 23° /8° 0.8 mm 0 cm
May 28 Patchy rain possible
Patchy rain possible
 21° /11° 5.4 mm 0 cm
May 29 Patchy rain possible
Patchy rain possible
 23° /10° 1.4 mm 0 cm
May 30 Patchy light rain with thunder
Patchy light rain with thunder
 25° /10° 1 mm 0 cm
May 31 Thundery outbreaks possible
Thundery outbreaks possible
 25° /9° 0.2 mm 0 cm
Next
Important Notice
Our weather forecast for Arapahoe 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 Arapahoe County forecast closer to your planned date for the most up-to-date weather information.
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Arapahoe County in May - FAQ

What are the expected maximum and minimum temperatures in Arapahoe County during May?
Enjoy moderate daytime temperatures of up to 20° and cooler nights around 8°. Ideal for a range of outdoor activities, from hiking to city tours.
How much rainfall should be expected in Arapahoe County during May?
Significant rainfall exceeding 172.6 mm is expected in Arapahoe County during May, occurring over more than 15 days. Preparing for wet conditions is recommended in your planning.
Will it snow in Arapahoe County in May 2026?
Arapahoe County typically sees 0.76 cm of snowfall during May.
What are the typical wind conditions in Arapahoe County during May?
The average wind speed in Arapahoe County during May is 21 km/h, suggesting breezy to windy conditions, depending on your activities.

Arapahoe County snow forecast May 2026

Track daily snowfall levels and discover Arapahoe County’s snowy potential this May ❄️

May rainfall patterns in Arapahoe County

Explore the daily rainfall trends and prepare for Arapahoe Countys May weather 💧

UV exposure in Arapahoe County during May

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

Get accurate weather forecasts for Arapahoe County, located at latitude 39.613 and longitude -105.017. Stay updated with localized weather information tailored for Arapahoe County.

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