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
With the onset of May, McCook Lake's weather sees a temperature rise, transitioning from a mild 58.6°F (14.8°C) in April to a pleasant 69.4°F (20.8°C). McCook Lake, during May nights, observes an average temperature of 52.2°F (11.2°C).Humidity
The average relative humidity in May in McCook Lake, South Dakota, is 70%.Rainfall
The wettest months are May and June, with an average 3.03" (77mm) of rainfall.Snowfall
January through May, October through December are months with snowfall in McCook Lake, South Dakota. May is the last month it regularly snows in McCook Lake. During 0.2 snowfall days, in May, McCook Lake aggregates 0.04" (1mm) of snow. Throughout the year, in McCook Lake, South Dakota, there are 38 snowfall days, and 13.23" (336mm) of snow is accumulated.Daylight
The average length of the day in May in McCook Lake is 14h and 38min.On the first day of May in McCook Lake, South Dakota, sunrise is at 6:19 am and sunset at 8:26 pm. On the last day of the month, sunrise is at 5:51 am and sunset at 8:56 pm CDT.
Sunshine
In May, the average sunshine is 8.8h.UV index
In McCook Lake, the average daily maximum UV index in May is 5. A UV Index of 3 to 5 symbolizes a moderate threat to health from unprotected exposure to Sun's UV rays for ordinary individuals.Note: In May, a daily UV index of 5 turns into the following recommendations:
Guard yourself - Avoiding sunburn is suggested. The midday Sun can be harmful due to its potent UV radiation; seek shade and reduce exposure. During bright days, sunglasses that offer UVA and UVB defense are recommended. Beware! Reflection from snow can magnify the Sun's UV radiation nearly twofold.
Frequently asked questions
What are May temperatures in McCook Lake?
What is the average humidity in May in McCook Lake?
What is the wettest month in McCook Lake?
How many days does it rain in May in McCook Lake?
What is the last month it snows in McCook Lake?
How many hours of daylight does McCook Lake have in May?
What time are sunrise and sunset in May in McCook Lake?
How many hours of sunshine does McCook Lake have in May?
What is the UV index intensity in May in McCook Lake?
Average temperature in May
McCook Lake, SD
- Average high temperature in May: 69.4°F
The warmest month (with the highest average high temperature) is July (84°F).
The month with the lowest average high temperature is January (27°F).
- Average low temperature in May: 52.2°F
The month with the highest average low temperature is July (64.9°F).
The coldest month (with the lowest average low temperature) is January (13.1°F).
Average pressure in May
McCook Lake, SD
- Average pressure in May: 29.92"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.86"Hg).
Average wind speed in May
McCook Lake, SD
- Average wind speed in May: 9.4mph
The windiest month (with the highest average wind speed) is April (11.1mph).
The calmest month (with the lowest average wind speed) is July (7.6mph).
Average humidity in May
McCook Lake, SD
- Average humidity in May: 70%
The month with the highest relative humidity is January (84%).
The month with the lowest relative humidity is October (65%).
Average rainfall in May
McCook Lake, SD
- Average rainfall in May: 3.03"
The wettest months (with the highest rainfall) are May and June (3.03").
The driest month (with the least rainfall) is February (0.67").
Average rainfall days in May
McCook Lake, SD
- Average rainfall days in May: 16.2 days
The month with the highest number of rainy days is June (17.8 days).
The month with the least rainy days is February (3.3 days).
Average snowfall in May
McCook Lake, SD
- Average snowfall in May: 0.04"
The month with the highest snowfall is January (2.95").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in May
McCook Lake, SD
- Average snowfall days in May: 0.2 days
The month with the highest number of snowfall days is January (9.6 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in May /
Average sunshine in May
McCook Lake, 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 6min).
- Average sunshine in May: 8h and 5min
The month with the most sunshine is July (Average sunshine: 10h and 42min).
The month with the least sunshine is January (Average sunshine: 4h and 24min).
Average sunshine days in May
McCook Lake, SD
- Average sunshine days in May: 12.8 days
The month with the most sunshine days is November (20.9 days).
The month with the least sunshine days is June (9.7 days).
Average UV index in May
McCook Lake, SD
- Average UV index in May: 5
The months with the highest UV index are June and July (UV index 6).
The month with the lowest UV index is January (UV index 1).
Average cloud cover in May
McCook Lake, SD
- Average cloud cover in May: 40
The month with the most cloud cover is January (Cloud cover 52).
The month with the least cloud cover is July (Cloud cover 26).
Average visibility in May
McCook Lake, 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).
McCook Lake, South Dakota, USA
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