May weather forecastHuron, SD

May
Weather in May
May offers Huron residents the full spring experience. A dip in cloud cover down to 38% allows ample sunshine, igniting the city in a plethora of colors. The park buzzes with people and activity as temperatures continue their upward trend. Late May sees an approaching summer, with longer days, rising humidity, and warmer evenings. The transformation of the landscapes, from snow-clad to sun-kissed green, reaches its zenith as May draws to a close.Temperature
The shift into May is marked by a rise in the average high-temperature, moving from April's mild 55.9°F (13.3°C) to a still refreshing 67.6°F (19.8°C). In the month of May, Huron records a consistent average low-temperature of 48.9°F (9.4°C).Humidity
In Huron, South Dakota, the average relative humidity in May is 68%.Rainfall
In Huron, in May, during 13.6 rainfall days, 2.36" (60mm) of precipitation is typically accumulated. Throughout the year, there are 101.8 rainfall days, and 18.19" (462mm) of precipitation is accumulated.Snowfall
In Huron, snow does not fall in May through September.Daylight
In Huron, the average length of the day in May is 14h and 49min.On the first day of the month, sunrise is at 6:22 am and sunset at 8:37 pm. On the last day of May, in Huron, sunrise is at 5:51 am and sunset at 9:09 pm CDT.
Sunshine
In Huron, the average sunshine in May is 9.1h.UV index
In Huron, the average daily maximum UV index in May is 5. A UV Index estimate of 3 to 5 represents a medium health hazard from unsafe exposure to UV radiation for the average person.Note: An average UV index of 5 in May transforms into this advice:
Act with care - Obligation to protect against skin and eye damage is highlighted. The Sun's UV radiation is especially harmful around midday, so reduce exposure and stay safe. Opt for tightly woven and loose clothing to enhance protection from the Sun. Forewarned is forearmed! The Sun's UV radiation can be almost doubled in intensity by snow reflection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in May
Huron, SD
- Average high temperature in May: 67.6°F
The warmest month (with the highest average high temperature) is July (85.6°F).
The month with the lowest average high temperature is January (23.2°F).
- Average low temperature in May: 48.9°F
The month with the highest average low temperature is July (64.2°F).
The coldest month (with the lowest average low temperature) is January (8.2°F).
Average pressure in May
Huron, SD
- Average pressure in May: 29.92"Hg
The months with the highest atmospheric pressure are January and February (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.84"Hg).
Average wind speed in May
Huron, SD
- Average wind speed in May: 9.8mph
The windiest month (with the highest average wind speed) is April (11.1mph).
The calmest months (with the lowest average wind speed) are July and August (8.6mph).
Average humidity in May
Huron, SD
- Average humidity in May: 68%
The month with the highest relative humidity is January (88%).
The month with the lowest relative humidity is September (62%).
Average rainfall in May
Huron, SD
- Average rainfall in May: 2.36"
The wettest month (with the highest rainfall) is June (2.8").
The driest month (with the least rainfall) is January (0.55").
Average rainfall days in May
Huron, SD
- Average rainfall days in May: 13.6 days
The month with the highest number of rainy days is June (15.2 days).
The month with the least rainy days is February (1.8 days).
Average snowfall in May
Huron, SD
- Average snowfall in May: 0"
The month with the highest snowfall is February (3.54").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in May
Huron, SD
- Average snowfall days in May: 0.1 days
The month with the highest number of snowfall days is December (9.5 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in May /
Average sunshine in May
Huron, SD
- Average daylight in May: 14h and 48min
The month with the longest days is June (Average daylight: 15h and 30min).
The month with the shortest days is December (Average daylight: 8h and 54min).
- Average sunshine in May: 9h and 6min
The month with the most sunshine is July (Average sunshine: 11h and 12min).
The month with the least sunshine is January (Average sunshine: 4h and 12min).
Average sunshine days in May
Huron, SD
- Average sunshine days in May: 14.6 days
The month with the most sunshine days is November (21.8 days).
The month with the least sunshine days is June (12.3 days).
Average UV index in May
Huron, 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 January and November (UV index 1).
Average cloud cover in May
Huron, SD
- Average cloud cover in May: 38
The month with the most cloud cover is January (Cloud cover 54).
The month with the least cloud cover is July (Cloud cover 22).
Average visibility in May
Huron, SD
- Average visibility in May: 6mi
The months with the highest visibility are February, March, April, May, June, July, August, September, October, November and December (6mi).
The month with the lowest visibility is January (5mi).





