May weather forecastPrairie City, SD
May
Weather in May
The last month of the spring, May, is a refreshing month in Prairie City, South Dakota, with an average temperature ranging between min 45.9°F (7.7°C) and max 64.2°F (17.9°C).Temperature
As May arrives, a rise in the average high-temperature is observed, moving from a fresh 52°F (11.1°C) in April to a comfortable 64.2°F (17.9°C). Prairie City's average low-temperature in May is measured at a chilly 45.9°F (7.7°C).Humidity
The average relative humidity in May is 62%.Rainfall
May is the month with the most rainfall. Rain falls for 15.3 days and accumulates 2.48" (63mm) of precipitation.Snowfall
January through June, October through December are months with snowfall. In Prairie City, in May, snow falls for 1.4 days, with typically accumulated 2.01" (51mm) of snow. Throughout the year, there are 67.2 snowfall days, and 24.69" (627mm) of snow is accumulated.Daylight
In May, the average length of the day in Prairie City is 14h and 56min.On the first day of the month, sunrise is at 5:37 am and sunset at 7:58 pm. On the last day of May, sunrise is at 5:05 am and sunset at 8:32 pm MDT.
Sunshine
In May, the average sunshine is 9.5h.UV index
In Prairie City, the average daily maximum UV index in May is 5. A UV Index reading of 3 to 5 represents a moderate threat to health from exposure to the Sun's UV rays for the ordinary person.Note: The maximum UV index of 5 during May leads to these instructions:
Prioritize safety - The need to safeguard skin and eyes from harm is emphasized. The Sun is most powerful around mid-day, so it's a good practice to reduce direct exposure. Combat UV radiation's detrimental effects with sun-safe clothing and UV-blocking eyewear. Mark this! Snow reflection can nearly double the UV radiation intensity from the Sun.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in May
Prairie City, SD
- Average high temperature in May: 64.2°F
The warmest month (with the highest average high temperature) is July (84.7°F).
The month with the lowest average high temperature is January (25.5°F).
- Average low temperature in May: 45.9°F
The month with the highest average low temperature is July (62.4°F).
The coldest month (with the lowest average low temperature) is January (12°F).
Average pressure in May
Prairie City, SD
- Average pressure in May: 29.91"Hg
The month with the highest atmospheric pressure is February (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.84"Hg).
Average wind speed in May
Prairie City, SD
- Average wind speed in May: 11mph
The windiest months (with the highest average wind speed) are January and October (11.7mph).
The calmest month (with the lowest average wind speed) is August (9.7mph).
Average humidity in May
Prairie City, SD
- Average humidity in May: 62%
The month with the highest relative humidity is January (84%).
The month with the lowest relative humidity is August (50%).
Average rainfall in May
Prairie City, SD
- Average rainfall in May: 2.48"
The wettest month (with the highest rainfall) is May (2.48").
The driest months (with the least rainfall) are January and November (0.51").
Average rainfall days in May
Prairie City, SD
- Average rainfall days in May: 15.3 days
The month with the highest number of rainy days is May (15.3 days).
The month with the least rainy days is November (3 days).
Average snowfall in May
Prairie City, SD
- Average snowfall in May: 2.01"
The month with the highest snowfall is February (4.84").
The months with the least snowfall are July, August and September (0").
Average snowfall days in May
Prairie City, SD
- Average snowfall days in May: 1.4 days
The month with the highest number of snowfall days is February (13.5 days).
The months with the least snowfall days are July and August (0 days).
Average daylight in May /
Average sunshine in May
Prairie City, SD
- Average daylight in May: 14h and 54min
The month with the longest days is June (Average daylight: 15h and 36min).
The month with the shortest days is December (Average daylight: 8h and 48min).
- Average sunshine in May: 9h and 30min
The month with the most sunshine is July (Average sunshine: 11h and 30min).
The month with the least sunshine is February (Average sunshine: 4h and 36min).
Average sunshine days in May
Prairie City, SD
- Average sunshine days in May: 12.1 days
The month with the most sunshine days is November (19.5 days).
The month with the least sunshine days is April (11.8 days).
Average UV index in May
Prairie City, SD
- Average UV index in May: 5
The months with the highest UV index are June, July and August (UV index 6).
The month with the lowest UV index is November (UV index 1).
Average cloud cover in May
Prairie City, SD
- Average cloud cover in May: 37
The months with the most cloud cover are January and February (Cloud cover 52).
The months with the least cloud cover are July and August (Cloud cover 20).
Average visibility in May
Prairie City, SD
- Average visibility in May: 6mi
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).





