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
May's arrival brings a change in high-temperatures, moving from 56.1°F (13.4°C) in April to a still refreshing 66.6°F (19.2°C). White Horse, during May nights, observes an average temperature of 49.3°F (9.6°C).Humidity
The average relative humidity in May is 63%.Rainfall
May is the month with the most rainfall in White Horse. Rain falls for 15.7 days and accumulates 2.6" (66mm) of precipitation.Snowfall
Months with snowfall are January through May, September through December. May is the last month it regularly snows. During 0.6 snowfall days, in May, White Horse aggregates 0.47" (12mm) of snow. In White Horse, South Dakota, during the entire year, snow falls for 41.1 days and aggregates up to 14.53" (369mm) of snow.Daylight
The average length of the day in May in White Horse, South Dakota, is 14h and 43min.On the first day of May in White Horse, South Dakota, sunrise is at 6:34 am and sunset at 8:44 pm. On the last day of the month, sunrise is at 6:04 am and sunset at 9:15 pm CDT.
Sunshine
In White Horse, South Dakota, the average sunshine in May is 9.4h.UV index
In May, the average daily maximum UV index in White Horse is 5. A UV Index reading of 3 to 5 represents a moderate health risk from exposure to the Sun's UV radiation for ordinary individuals.Note: The maximum daily UV index of 5 in May converts into the following recommendations:
Adopt protective measures - Requirement to safeguard skin and eyes from harm exists. Solar radiation is at its peak intensity during midday, so it's advisable to stay indoors or in the shade. Protect your eyes, ears, face, and neck from the Sun by wearing a wide-brimmed hat. Beware! Reflection from snow can magnify 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 in White Horse?
What is the average humidity in May in White Horse?
What is the wettest month in White Horse?
How much does it rain in White Horse in May?
What is the last month it snows in White Horse?
How many hours of daylight does White Horse have in May?
When is the sunrise / sunset in May in White Horse?
How many hours of sunshine does White Horse have in May?
What is the UV index reading in May in White Horse?
Average temperature in May
White Horse, 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
White Horse, 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
White Horse, 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
White Horse, 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
White Horse, 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
White Horse, 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
White Horse, 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
White Horse, 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
White Horse, SD
- Average daylight in May: 14h and 4min
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 2min
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
White Horse, 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
White Horse, 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
White Horse, 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
White 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).
White Horse, South Dakota, USA
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