May weather forecastLake City, SD
May
Weather in May
The last month of the spring, May, is a comfortable month in Lake City, South Dakota, with temperature in the range of an average high of 65.1°F (18.4°C) and an average low of 48°F (8.9°C).Temperature
With the onset of May, Lake City experiences a temperature shift, with the average high-temperature moving from a fresh 51.8°F (11°C) in April to a comfortable 65.1°F (18.4°C). May is noted for a mean low-temperature of 48°F (8.9°C).Humidity
In Lake City, the average relative humidity in May is 68%.Rainfall
In Lake City, South Dakota, in May, during 14.8 rainfall days, 2.48" (63mm) of precipitation is typically accumulated. Throughout the year, there are 107.9 rainfall days, and 20.63" (524mm) of precipitation is accumulated.Snowfall
January through May, October through December are months with snowfall in Lake City. May is the last month it regularly snows. During 0.3 snowfall days, in May, Lake City aggregates 0.08" (2mm) of snow. Throughout the year, in Lake City, there are 53.2 snowfall days, and 20.12" (511mm) of snow is accumulated.Daylight
The average length of the day in May in Lake City is 14h and 57min.On the first day of the month, sunrise is at 6:15 am and sunset at 8:37 pm. On the last day of May, sunrise is at 5:43 am and sunset at 9:11 pm CDT.
Sunshine
In May, the average sunshine in Lake City, South Dakota, is 8.8h.UV index
In May, the average daily maximum UV index is 5. A UV Index estimate of 3 to 5 represents a moderate threat to health from unsafe exposure to UV radiation for the average person.Note: In May, a daily maximum UV index of 5 leads to the following instructions:
Be mindful. Those with pale skin might receive burns in fewer than 30 minutes. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. Enhance your sun protection with tightly woven, yet airy clothing. Remember this! The UV radiation of the Sun can be nearly doubled by the reflective properties of snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in May
Lake City, SD
- Average high temperature in May: 65.1°F
The warmest month (with the highest average high temperature) is July (81.1°F).
The month with the lowest average high temperature is January (19°F).
- Average low temperature in May: 48°F
The month with the highest average low temperature is July (61.7°F).
The coldest month (with the lowest average low temperature) is January (5.4°F).
Average pressure in May
Lake City, SD
- Average pressure in May: 29.93"Hg
The month with the highest atmospheric pressure is February (30.17"Hg).
The month with the lowest atmospheric pressure is June (29.86"Hg).
Average wind speed in May
Lake City, SD
- Average wind speed in May: 9.9mph
The windiest months (with the highest average wind speed) are April and October (10.9mph).
The calmest months (with the lowest average wind speed) are July and August (8.3mph).
Average humidity in May
Lake City, SD
- Average humidity in May: 68%
The month with the highest relative humidity is January (89%).
The month with the lowest relative humidity is September (65%).
Average rainfall in May
Lake City, SD
- Average rainfall in May: 2.48"
The wettest month (with the highest rainfall) is July (3.27").
The driest month (with the least rainfall) is January (0.55").
Average rainfall days in May
Lake City, SD
- Average rainfall days in May: 14.8 days
The month with the highest number of rainy days is June (17.6 days).
The month with the least rainy days is February (1.6 days).
Average snowfall in May
Lake City, SD
- Average snowfall in May: 0.08"
The month with the highest snowfall is December (4.29").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in May
Lake City, SD
- Average snowfall days in May: 0.3 days
The month with the highest number of snowfall days is December (11.5 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in May /
Average sunshine in May
Lake City, SD
- Average daylight in May: 14h and 54min
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 42min).
- Average sunshine in May: 8h and 48min
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
Lake City, SD
- Average sunshine days in May: 13.8 days
The month with the most sunshine days is November (19.7 days).
The month with the least sunshine days is June (10.8 days).
Average UV index in May
Lake City, 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 December (UV index 1).
Average cloud cover in May
Lake City, SD
- Average cloud cover in May: 41
The month with the most cloud cover is January (Cloud cover 60).
The months with the least cloud cover are July and August (Cloud cover 25).
Average visibility in May
Lake 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).





