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Weather in Sioux Falls for May 2025

Your guide to Sioux Falls weather in May - trends and predictions
  • In general, the average temperature in Sioux Falls at the beginning of May is 16.9 °F. As the month progressed, temperatures tended to significantly warm up, reaching an average of 22.6 °F by the end of May.

  • The climate of Sioux Falls in May is notably wet, with an average of 15 rainy days.

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Average dry days
16
Dry days
Average rainy days
15
Rainy days
Average snowy days
0
Snow days
Average temperatures
22°/10°
Temperatures
Average wind speed
24 km/h
Avg max wind
Average humidity
68 %
Avg humidity

Sioux Falls in May average weather

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Temperatures trend during May in Sioux Falls

See the weather trend as well as the moving average line

May weather day by day

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Date Weather Temperatures Rain UV More
May 1 Patchy rain possible
Patchy rain possible
18° /7° 0.1 mm 4
May 2 Patchy rain possible
Patchy rain possible
15° /8° 12.6 mm 4
May 3 Overcast
Overcast
15° /6° 4.1 mm 4
May 4 Patchy rain possible
Patchy rain possible
14° /6° 4.9 mm 3
May 5 Sunny
Sunny
17° /6° 0 mm 5
May 6 Light rain shower
Light rain shower
21° /10° 19.8 mm 5
May 7 Thundery outbreaks possible
Thundery outbreaks possible
18° /8° 0.1 mm 4
May 8 Light rain shower
Light rain shower
17° /8° 4.5 mm 4
May 9 Light rain shower
Light rain shower
16° /9° 3.6 mm 4
May 10 Patchy light drizzle
Patchy light drizzle
20° /10° 0.3 mm 5
May 11 Partly cloudy
Partly cloudy
22° /9° 0 mm 6
May 12 Thundery outbreaks possible
Thundery outbreaks possible
25° /12° 2.6 mm 6
May 13 Patchy rain possible
Patchy rain possible
19° /11° 1.4 mm 4
May 14 Sunny
Sunny
20° /9° 0 mm 6
May 15 Light rain shower
Light rain shower
19° /12° 2.3 mm 4
May 16 Mist
Mist
21° /9° 0 mm 5
May 17 Sunny
Sunny
25° /12° 0 mm 7
May 18 Patchy light drizzle
Patchy light drizzle
21° /14° 0.2 mm 5
May 19 Light rain shower
Light rain shower
19° /12° 2.2 mm 4
May 20 Sunny
Sunny
21° /4° 0 mm 6
May 21 Sunny
Sunny
25° /9° 0 mm 7
May 22 Cloudy
Cloudy
22° /11° 0.1 mm 5
May 23 Partly cloudy
Partly cloudy
25° /12° 1.5 mm 6
May 24 Sunny
Sunny
22° /11° 0.7 mm 6
May 25 Patchy rain possible
Patchy rain possible
22° /11° 0.4 mm 5
May 26 Partly cloudy
Partly cloudy
22° /12° 0.1 mm 6
May 27 Sunny
Sunny
22° /11° 0.6 mm 6
May 28 Partly cloudy
Partly cloudy
22° /10° 0.3 mm 6
May 29 Moderate rain at times
Moderate rain at times
23° /11° 1 mm 6
May 30 Heavy rain at times
Heavy rain at times
23° /15° 6.2 mm 5
May 31 Moderate or heavy rain shower
Moderate or heavy rain shower
24° /15° 11.3 mm 5
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Important Notice
Our weather forecast for Sioux Falls 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 Sioux Falls forecast closer to your planned date for the most up-to-date weather information.

Sioux Falls in May - FAQ

What are the expected maximum and minimum temperatures in Sioux Falls during May?
Enjoy moderate daytime temperatures of up to 22° and cooler nights around 10°. Ideal for a range of outdoor activities, from hiking to city tours.
How much rainfall should be expected in Sioux Falls during May?
Moderate rainfall is anticipated in Sioux Falls during May, with a total of 83.5 mm spread over approximately 15 days. Considering plans for rainy days is advisable.
What are the typical wind conditions in Sioux Falls during May?
The average wind speed in Sioux Falls during May is 24 km/h, suggesting breezy to windy conditions, depending on your activities.

May rainfall patterns in Sioux Falls

Explore the daily rainfall trends and prepare for Sioux Fallss May weather 💧

UV exposure in Sioux Falls during May

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

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Location coordinates Where is Sioux Falls?

Get accurate weather forecasts for Sioux Falls, located at latitude 43.55 and longitude -96.7. Stay updated with localized weather information tailored for Sioux Falls.

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