May weather forecastAntelope, SD
May
Weather in May
The last month of the spring, May, is a comfortable month in Antelope, South Dakota, with an average temperature ranging between min 49.3°F (9.6°C) and max 66.6°F (19.2°C).Temperature
May signals a shift in the average high-temperature, moving from April's moderate 56.1°F (13.4°C) to an enjoyable 66.6°F (19.2°C). An average low-temperature of 49.3°F (9.6°C) is common during the nights of May.Humidity
In May, the average relative humidity is 63%.Rainfall
The month with the most rainfall is May, when the rain falls for 15.7 days and typically aggregates up to 2.6" (66mm) of precipitation.Snowfall
January through May, September through December are months with snowfall. May is the last month it regularly snows. During 0.6 snowfall days, in May, Antelope aggregates 0.47" (12mm) of snow. Throughout the year, there are 41.1 snowfall days, and 14.53" (369mm) of snow is accumulated.Daylight
In Antelope, the average length of the day in May is 14h and 43min.On the first day of the month, sunrise is at 6:34 am and sunset at 8:44 pm. On the last day of May, in Antelope, sunrise is at 6:05 am and sunset at 9:15 pm CDT.
Sunshine
In May, the average sunshine in Antelope is 9.4h.UV index
The average daily maximum UV index in May is 5. A UV Index value of 3 to 5 symbolizes a moderate threat to health from exposure to the Sun's UV rays for ordinary individuals.Note: In May, the maximum UV index of 5 translates into these guidelines:
Adopt protective measures - Suggestions to resist sunburn are offered. The Sun's harshest UV rays are around midday; it's wise to seek shade and limit time outdoors. For optimum UV protection, wear sun-resistant attire complemented with a hat and quality shades. 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
Antelope, SD
- Average high temperature in May: 66.6°F
The warmest month (with the highest average high temperature) is July (86.4°F).
The month with the lowest average high temperature is January (31.5°F).
- Average low temperature in May: 49.3°F
The month with the highest average low temperature is July (65.7°F).
The coldest month (with the lowest average low temperature) is January (18.5°F).
Average pressure in May
Antelope, 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 (29.85"Hg).
Average wind speed in May
Antelope, SD
- Average wind speed in May: 12.2mph
The windiest month (with the highest average wind speed) is April (13.1mph).
The calmest months (with the lowest average wind speed) are July and August (10.6mph).
Average humidity in May
Antelope, SD
- Average humidity in May: 63%
The month with the highest relative humidity is January (78%).
The month with the lowest relative humidity is September (56%).
Average rainfall in May
Antelope, SD
- Average rainfall in May: 2.6"
The wettest month (with the highest rainfall) is May (2.6").
The driest month (with the least rainfall) is January (0.47").
Average rainfall days in May
Antelope, SD
- Average rainfall days in May: 15.7 days
The month with the highest number of rainy days is May (15.7 days).
The month with the least rainy days is January (2.4 days).
Average snowfall in May
Antelope, SD
- Average snowfall in May: 0.47"
The month with the highest snowfall is December (2.76").
The months with the least snowfall are June, July and August (0").
Average snowfall days in May
Antelope, SD
- Average snowfall days in May: 0.6 days
The month with the highest number of snowfall days is January (9.7 days).
The months with the least snowfall days are June, July and August (0 days).
Average daylight in May /
Average sunshine in May
Antelope, SD
- Average daylight in May: 14h and 42min
The month with the longest days is June (Average daylight: 15h and 18min).
The month with the shortest days is December (Average daylight: 9h and 0min).
- Average sunshine in May: 9h and 24min
The month with the most sunshine is July (Average sunshine: 11h and 12min).
The month with the least sunshine is January (Average sunshine: 5h and 24min).
Average sunshine days in May
Antelope, SD
- Average sunshine days in May: 12.2 days
The month with the most sunshine days is December (20.4 days).
The month with the least sunshine days is June (11.2 days).
Average UV index in May
Antelope, 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, February, November and December (UV index 2).
Average cloud cover in May
Antelope, SD
- Average cloud cover in May: 37
The month with the most cloud cover is February (Cloud cover 44).
The months with the least cloud cover are July, August and September (Cloud cover 21).
Average visibility in May
Antelope, 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).





