May weather forecastSorum, SD
May
Weather in May
The last month of the spring, May, is a comfortable month in Sorum, South Dakota, with an average temperature ranging between min 45.9°F (7.7°C) and max 64°F (17.8°C).Temperature
With the beginning of May, Sorum's average high-temperature sees an increase, transitioning from a fresh 52.9°F (11.6°C) in April to a comfortable 64°F (17.8°C). During May in Sorum, South Dakota, the average low-temperature is recorded at a chilly 45.9°F (7.7°C).Humidity
In Sorum, the average relative humidity in May is 62%.Rainfall
The month with the most rainfall is May, when the rain falls for 15.3 days and typically aggregates up to 2.68" (68mm) of precipitation.Snowfall
January through May, October through December are months with snowfall. May is the last month it regularly snows. During 1.6 snowfall days, in May, Sorum aggregates 1.5" (38mm) of snow. In Sorum, during the entire year, snow falls for 62.2 days and aggregates up to 22.95" (583mm) of snow.Daylight
In May, the average length of the day is 14h and 55min.On the first day of the month, sunrise is at 5:38 am and sunset at 7:58 pm. On the last day of May, sunrise is at 5:06 am and sunset at 8:32 pm MDT.
Sunshine
In May, the average sunshine is 9.5h.UV index
In May, the average daily maximum UV index is 5. A UV Index reading of 3 to 5 represents a moderate threat to health from unprotected exposure to Sun's UV rays for the ordinary person.Note: In May, an average UV index of 5 transforms into the following instructions:
Undertake precautions - Obligation exists to protect against skin and eye damage. Given the potency of the midday Sun's UV radiation, one should avoid prolonged exposure. Protect your eyes, ears, face, and neck from the Sun by wearing a wide-brimmed hat. Take precaution! The reflection from snow can almost double the UV radiation of the Sun.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in May
Sorum, SD
- Average high temperature in May: 64°F
The warmest month (with the highest average high temperature) is July (85.1°F).
The month with the lowest average high temperature is January (27.3°F).
- Average low temperature in May: 45.9°F
The month with the highest average low temperature is July (63.5°F).
The coldest month (with the lowest average low temperature) is January (14.4°F).
Average pressure in May
Sorum, SD
- Average pressure in May: 29.91"Hg
The month with the highest atmospheric pressure is January (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.84"Hg).
Average wind speed in May
Sorum, SD
- Average wind speed in May: 11.1mph
The windiest months (with the highest average wind speed) are January and October (11.9mph).
The calmest month (with the lowest average wind speed) is July (9.8mph).
Average humidity in May
Sorum, SD
- Average humidity in May: 62%
The month with the highest relative humidity is January (82%).
The month with the lowest relative humidity is August (47%).
Average rainfall in May
Sorum, SD
- Average rainfall in May: 2.68"
The wettest month (with the highest rainfall) is May (2.68").
The driest months (with the least rainfall) are January and November (0.51").
Average rainfall days in May
Sorum, 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 January (3.3 days).
Average snowfall in May
Sorum, SD
- Average snowfall in May: 1.5"
The month with the highest snowfall is March (4.37").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in May
Sorum, SD
- Average snowfall days in May: 1.6 days
The month with the highest number of snowfall days is February (12.3 days).
The months with the least snowfall days are June, July and August (0 days).
Average daylight in May /
Average sunshine in May
Sorum, 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 August (Average sunshine: 11h and 30min).
The months with the least sunshine are January and February (Average sunshine: 5h and 0min).
Average sunshine days in May
Sorum, SD
- Average sunshine days in May: 13.8 days
The month with the most sunshine days is November (19.4 days).
The month with the least sunshine days is April (11.6 days).
Average UV index in May
Sorum, SD
- Average UV index in May: 5
The months with the highest UV index are June, July and August (UV index 6).
The months with the lowest UV index are February and December (UV index 1).
Average cloud cover in May
Sorum, SD
- Average cloud cover in May: 37
The months with the most cloud cover are January and February (Cloud cover 48).
The month with the least cloud cover is August (Cloud cover 18).
Average visibility in May
Sorum, 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).





