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
As Big Stone City transitions into May, a rise in the average high-temperature is observed, moving from a cool 53.1°F (11.7°C) in April to a comfortable 66.6°F (19.2°C). The low-temperature averages to a frosty 48.7°F (9.3°C) during the nights of May.Humidity
In May, the average relative humidity is 67%.Rainfall
In Big Stone City, South Dakota, in May, during 14.5 rainfall days, 2.56" (65mm) of precipitation is typically accumulated. Throughout the year, there are 106.9 rainfall days, and 19.84" (504mm) 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, Big Stone City aggregates 0.16" (4mm) of snow. In Big Stone City, during the entire year, snow falls for 53.5 days and aggregates up to 20.31" (516mm) of snow.Daylight
In Big Stone City, the average length of the day in May is 14h and 54min.On the first day of the month, sunrise is at 6:13 am and sunset at 8:32 pm. On the last day of May, sunrise is at 5:41 am and sunset at 9:06 pm CDT.
Sunshine
In May, the average sunshine is 8.9h.UV index
In May, the average daily maximum UV index is 5. A UV Index estimate of 3 to 5 represents a medium vulnerability from exposure to the Sun's UV radiation for ordinary individuals.Note: The daily high UV index of 5 in May translates into this advice:
Guard yourself - Avoiding sunburn is suggested. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. A hat with a broad brim is indispensable, filtering out up to half of UV rays. Attention! Nearly twice the Sun's UV radiation can be reflected by snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are the temperatures in Big Stone City in May?
What is the average humidity in May?
How many days does it rain in May?
What is the last month it snows?
What is the average length of the day in May in Big Stone City?
When are sunrise and sunset in May in Big Stone City?
How many hours of sunshine does Big Stone City have in May?
What is the UV index reading in May in Big Stone City?
Average temperature in May
Big Stone City, SD
- Average high temperature in May: 66.6°F
The warmest month (with the highest average high temperature) is July (81.5°F).
The month with the lowest average high temperature is January (19.6°F).
- Average low temperature in May: 48.7°F
The month with the highest average low temperature is July (62.1°F).
The coldest month (with the lowest average low temperature) is January (5.5°F).
Average pressure in May
Big Stone City, SD
- Average pressure in May: 29.93"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
Big Stone City, SD
- Average wind speed in May: 9.6mph
The windiest month (with the highest average wind speed) is April (10.6mph).
The calmest month (with the lowest average wind speed) is July (7.8mph).
Average humidity in May
Big Stone City, SD
- Average humidity in May: 67%
The month with the highest relative humidity is January (89%).
The month with the lowest relative humidity is October (66%).
Average rainfall in May
Big Stone City, SD
- Average rainfall in May: 2.56"
The wettest month (with the highest rainfall) is June (3.07").
The driest month (with the least rainfall) is February (0.55").
Average rainfall days in May
Big Stone City, SD
- Average rainfall days in May: 14.5 days
The month with the highest number of rainy days is June (16.1 days).
The month with the least rainy days is February (1.8 days).
Average snowfall in May
Big Stone City, SD
- Average snowfall in May: 0.16"
The month with the highest snowfall is December (4.76").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in May
Big Stone City, SD
- Average snowfall days in May: 0.3 days
The month with the highest number of snowfall days is January (12.2 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in May /
Average sunshine in May
Big Stone City, SD
- Average daylight in May: 14h and 5min
The month with the longest days is June (Average daylight: 15h and 36min).
The month with the shortest days is December (Average daylight: 8h and 48min).
- Average sunshine in May: 8h and 5min
The month with the most sunshine is July (Average sunshine: 10h and 48min).
The month with the least sunshine is January (Average sunshine: 3h and 42min).
Average sunshine days in May
Big Stone City, SD
- Average sunshine days in May: 14.6 days
The months with the most sunshine days are October and November (18.7 days).
The month with the least sunshine days is June (11.4 days).
Average UV index in May
Big Stone City, 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
Big Stone City, SD
- Average cloud cover in May: 40
The month with the most cloud cover is January (Cloud cover 59).
The months with the least cloud cover are July and August (Cloud cover 25).
Average visibility in May
Big Stone City, 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).
Big Stone City, South Dakota, USA
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