May weather forecastChamberlain, SD
May
Weather in May
May marks a distinct change in the weather with the city fully stepping into spring. The rise in temperatures is more noticeable, making weather conditions much more comfortable for outdoor activities. The frequency and volume of rain increase as May records the highest average rainfall of 2.8" (71mm) in Chamberlain, South Dakota. It is a period of rapid transition from the cool spring to the approaching warm summer. The increase in UV index hints towards the upcoming warmer months, requiring more precautions to be taken against sunburns.Temperature
Chamberlain's May weather shows an increase in high-temperatures, moving from April's refreshing 56.3°F (13.5°C) to a comfortable 67.8°F (19.9°C). Chamberlain's nighttime temperature during May is consistently averaged at a chilly 49.3°F (9.6°C).Humidity
The average relative humidity in May is 66%.Rainfall
In Chamberlain, in May, during 15.3 rainfall days, 2.8" (71mm) of precipitation is typically accumulated. In Chamberlain, during the entire year, the rain falls for 107.6 days and collects up to 17.83" (453mm) of precipitation.Snowfall
In Chamberlain, snow does not fall in May through September.Daylight
In May, the average length of the day in Chamberlain is 14h and 46min.On the first day of the month, sunrise is at 6:27 am and sunset at 8:40 pm. On the last day of May, in Chamberlain, sunrise is at 5:58 am and sunset at 9:12 pm CDT.
Sunshine
In Chamberlain, the average sunshine in May 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 health risk from exposure to the Sun's UV radiation for the average person.Note: The daily high UV index of 5 during May translates into the following recommendations:
Undertake protective steps - Recommendations to avoid sunburn are issued. Avoiding direct sun during mid-day hours can prevent harmful UV radiation exposure. Outfit yourself in sun-safe attire, like long sleeves, pants, a hat, and UV-blocking sunglasses. 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
Chamberlain, SD
- Average high temperature in May: 67.8°F
The warmest month (with the highest average high temperature) is July (88°F).
The month with the lowest average high temperature is January (26.1°F).
- Average low temperature in May: 49.3°F
The month with the highest average low temperature is July (66.2°F).
The coldest month (with the lowest average low temperature) is January (12.6°F).
Average pressure in May
Chamberlain, SD
- Average pressure in May: 29.91"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.84"Hg).
Average wind speed in May
Chamberlain, SD
- Average wind speed in May: 10.4mph
The windiest month (with the highest average wind speed) is April (11.3mph).
The calmest month (with the lowest average wind speed) is August (9.1mph).
Average humidity in May
Chamberlain, SD
- Average humidity in May: 66%
The month with the highest relative humidity is January (86%).
The month with the lowest relative humidity is September (58%).
Average rainfall in May
Chamberlain, SD
- Average rainfall in May: 2.8"
The wettest month (with the highest rainfall) is June (3.03").
The driest month (with the least rainfall) is November (0.55").
Average rainfall days in May
Chamberlain, 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 February (3.3 days).
Average snowfall in May
Chamberlain, SD
- Average snowfall in May: 0"
The month with the highest snowfall is February (3.66").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in May
Chamberlain, SD
- Average snowfall days in May: 0.1 days
The months with the highest number of snowfall days are January and February (11.7 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in May /
Average sunshine in May
Chamberlain, 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: 9h and 30min
The month with the most sunshine is July (Average sunshine: 11h and 24min).
The month with the least sunshine is January (Average sunshine: 4h and 42min).
Average sunshine days in May
Chamberlain, SD
- Average sunshine days in May: 12.1 days
The month with the most sunshine days is November (20.7 days).
The month with the least sunshine days is April (11.8 days).
Average UV index in May
Chamberlain, 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 February (UV index 1).
Average cloud cover in May
Chamberlain, SD
- Average cloud cover in May: 36
The month with the most cloud cover is January (Cloud cover 49).
The month with the least cloud cover is August (Cloud cover 20).
Average visibility in May
Chamberlain, 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).
