Contents
- Weather in May
- Frequently asked questions
- Average temperature in May
- Average pressure in May
- Average wind speed in May
- Average humidity in May
- Average rainfall in May
- Average rainfall days in May
- Average snowfall in May
- Average snowfall days in May
- Average daylight in May
- Average sunshine in May
- Average sunshine days in May
- Average UV index in May
- Average cloud cover in May
- Average visibility in May
Weather in May
Temperature
Black Horse sees an increase in average high-temperatures during May, moving from a cool 52.3°F (11.3°C) in April to a refreshing 64.9°F (18.3°C). Throughout May, the temperature falls to an average low of 46.2°F (7.9°C).Humidity
The average relative humidity in May is 62%.Rainfall
In Black Horse, in May, it is raining for 13.8 days, with typically 2.2" (56mm) of accumulated precipitation. In Black Horse, during the entire year, the rain falls for 101.3 days and collects up to 14.25" (362mm) of precipitation.Snowfall
January through May, October through December are months with snowfall. May is the last month it regularly snows. During 1.4 snowfall days, in May, Black Horse aggregates 1.34" (34mm) of snow. Throughout the year, there are 65.8 snowfall days, and 21.42" (544mm) of snow is accumulated.Daylight
In May, the average length of the day is 14h and 57min.On the first day of May, sunrise is at 5:31 am and sunset at 7:53 pm. On the last day of the month, sunrise is at 4:59 am and sunset at 8:27 pm MDT.
Sunshine
In Black Horse, the average sunshine in May is 9.6h.UV index
In Black Horse, the average daily maximum UV index in May is 4. A UV Index estimate of 3 to 5 represents a medium health hazard from exposure to the Sun's UV rays for the ordinary person.Note: In May, the UV index of 4 transforms into the following advice:
Take precautions - Protection against sun damage is advised. The Sun's harshest UV rays are around midday; it's wise to seek shade and limit time outdoors. Sunglasses that ward off UVA and UVB rays play a pivotal role in reducing solar eye damage. Be vigilant! The reflective nature of snow can increase the Sun's UV radiation nearly twofold.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are May temperatures?
What is the average humidity in May?
How much does it rain in May?
What is the last month it snows in Black Horse?
How many hours of daylight does Black Horse have in May?
When are sunrise and sunset in May?
How many hours of sunshine does Black Horse have in May?
How high is the UV index in May?
Average temperature in May
Black Horse, SD
- Average high temperature in May: 64.9°F
The warmest month (with the highest average high temperature) is July (84.7°F).
The month with the lowest average high temperature is January (25.2°F).
- Average low temperature in May: 46.2°F
The month with the highest average low temperature is July (63.1°F).
The coldest month (with the lowest average low temperature) is January (11.7°F).
Average pressure in May
Black Horse, SD
- Average pressure in May: 29.92"Hg
The month with the highest atmospheric pressure is February (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.84"Hg).
Average wind speed in May
Black Horse, SD
- Average wind speed in May: 11mph
The windiest month (with the highest average wind speed) is April (11.7mph).
The calmest month (with the lowest average wind speed) is August (9.6mph).
Average humidity in May
Black Horse, SD
- Average humidity in May: 62%
The month with the highest relative humidity is January (85%).
The months with the lowest relative humidity are August and September (51%).
Average rainfall in May
Black Horse, SD
- Average rainfall in May: 2.2"
The wettest month (with the highest rainfall) is June (2.28").
The driest month (with the least rainfall) is January (0.47").
Average rainfall days in May
Black Horse, SD
- Average rainfall days in May: 13.8 days
The month with the highest number of rainy days is June (15.1 days).
The month with the least rainy days is January (2.9 days).
Average snowfall in May
Black Horse, SD
- Average snowfall in May: 1.34"
The month with the highest snowfall is February (4.53").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in May
Black Horse, SD
- Average snowfall days in May: 1.4 days
The month with the highest number of snowfall days is February (12.9 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in May /
Average sunshine in May
Black Horse, SD
- Average daylight in May: 14h and 5min
The month with the longest days is June (Average daylight: 15h and 42min).
The month with the shortest days is December (Average daylight: 8h and 48min).
- Average sunshine in May: 9h and 4min
The month with the most sunshine is August (Average sunshine: 11h and 30min).
The month with the least sunshine is January (Average sunshine: 4h and 36min).
Average sunshine days in May
Black Horse, SD
- Average sunshine days in May: 13.7 days
The month with the most sunshine days is November (19.7 days).
The month with the least sunshine days is June (11.7 days).
Average UV index in May
Black Horse, SD
- Average UV index in May: 4
The months with the highest UV index are June, July and August (UV index 6).
The month with the lowest UV index is December (UV index 1).
Average cloud cover in May
Black Horse, SD
- Average cloud cover in May: 36
The months with the most cloud cover are January and February (Cloud cover 52).
The months with the least cloud cover are July and August (Cloud cover 20).
Average visibility in May
Black Horse, 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).
Black Horse, South Dakota, USA
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