May weather forecastColton, SD
May
Weather in May
The last month of the spring, May, is an enjoyable month in Colton, South Dakota, with an average temperature varying between 66.7°F (19.3°C) and 48.9°F (9.4°C).Temperature
Colton's transition into May brings a rise in the average high-temperature, moving from a fresh 54.5°F (12.5°C) in April to a refreshing 66.7°F (19.3°C). Throughout May, a steady low-temperature average of 48.9°F (9.4°C) is noted.Humidity
In May, the average relative humidity is 70%.Rainfall
In Colton, during May, the rain falls for 15.6 days and regularly aggregates up to 2.8" (71mm) of precipitation. Throughout the year, there are 116.4 rainfall days, and 21.38" (543mm) of precipitation is accumulated.Snowfall
Months with snowfall are January through May, October through December. May is the last month it regularly snows. During 0.3 snowfall days, in May, Colton aggregates 0.28" (7mm) of snow. Throughout the year, there are 45.6 snowfall days, and 19.49" (495mm) of snow is accumulated.Daylight
In May, the average length of the day is 14h and 45min.On the first day of May, sunrise is at 6:18 am and sunset at 8:31 pm. On the last day of the month, sunrise is at 5:48 am and sunset at 9:02 pm CDT.
Sunshine
The average sunshine in May is 8.8h.UV index
In Colton, the average daily maximum UV index in May is 5. A UV Index of 3 to 5 symbolizes a medium vulnerability from exposure to the Sun's UV rays for the average person.Note: The maximum daily UV index, 5 in May, converts into the following recommendations:
Put precautions into practice - Ensuring skin and eye safety is a necessity. The mid-day Sun emits the most powerful UV radiation, so seek shade and minimize exposure. Always opt for UVA and UVB-resistant sunglasses on radiant days. On your guard! Snow's reflection can almost double the intensity of the Sun's UV radiation.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in May
Colton, SD
- Average high temperature in May: 66.7°F
The warmest month (with the highest average high temperature) is July (81.9°F).
The month with the lowest average high temperature is January (22.3°F).
- Average low temperature in May: 48.9°F
The month with the highest average low temperature is July (62.2°F).
The coldest month (with the lowest average low temperature) is January (8.2°F).
Average pressure in May
Colton, 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 (29.86"Hg).
Average wind speed in May
Colton, SD
- Average wind speed in May: 9.9mph
The windiest month (with the highest average wind speed) is April (11.4mph).
The calmest month (with the lowest average wind speed) is July (8.2mph).
Average humidity in May
Colton, SD
- Average humidity in May: 70%
The month with the highest relative humidity is January (89%).
The month with the lowest relative humidity is October (67%).
Average rainfall in May
Colton, SD
- Average rainfall in May: 2.8"
The wettest month (with the highest rainfall) is June (3.27").
The driest month (with the least rainfall) is January (0.63").
Average rainfall days in May
Colton, SD
- Average rainfall days in May: 15.6 days
The month with the highest number of rainy days is June (17.4 days).
The month with the least rainy days is February (2.8 days).
Average snowfall in May
Colton, SD
- Average snowfall in May: 0.28"
The month with the highest snowfall is February (4.29").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in May
Colton, SD
- Average snowfall days in May: 0.3 days
The month with the highest number of snowfall days is December (10.3 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in May /
Average sunshine in May
Colton, SD
- Average daylight in May: 14h and 48min
The month with the longest days is June (Average daylight: 15h and 24min).
The month with the shortest days is December (Average daylight: 9h and 0min).
- Average sunshine in May: 8h and 48min
The month with the most sunshine is July (Average sunshine: 10h and 42min).
The month with the least sunshine is January (Average sunshine: 4h and 0min).
Average sunshine days in May
Colton, SD
- Average sunshine days in May: 14.4 days
The month with the most sunshine days is November (20.4 days).
The month with the least sunshine days is June (10.6 days).
Average UV index in May
Colton, SD
- Average UV index in May: 5
The months with the highest UV index are June and July (UV index 6).
The months with the lowest UV index are January and December (UV index 1).
Average cloud cover in May
Colton, SD
- Average cloud cover in May: 41
The month with the most cloud cover is January (Cloud cover 57).
The month with the least cloud cover is July (Cloud cover 27).
Average visibility in May
Colton, 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).





