April weather forecastClear Lake, SD
April
Weather in April
April in Clear Lake, South Dakota, is a fresh spring month, with an average temperature varying between 53.2°F (11.8°C) and 37°F (2.8°C).Temperature
Noticing a change, the average high-temperature during April moves from March's wintry 39°F (3.9°C) to a cool 53.2°F (11.8°C). Nighttime temperature lowers to an average of 37°F (2.8°C) in April.Humidity
In April, the average relative humidity in Clear Lake is 68%.Rainfall
In April, the rain falls for 11.1 days. Throughout April, 1.34" (34mm) of precipitation is accumulated. In Clear Lake, during the entire year, the rain falls for 101.9 days and collects up to 14.61" (371mm) of precipitation.Snowfall
January through May, October through December are months with snowfall. In Clear Lake, in April, snow falls for 3.3 days, with typically accumulated 1.34" (34mm) of snow. In Clear Lake, during the entire year, snow falls for 49.9 days and aggregates up to 14.02" (356mm) of snow.Daylight
In April, the average length of the day is 13h and 31min.On the first day of April in Clear Lake, sunrise is at 7:05 am and sunset at 7:54 pm. On the last day of the month, sunrise is at 6:16 am and sunset at 8:31 pm CDT.
Sunshine
In Clear Lake, the average sunshine in April is 7.8h.UV index
In Clear Lake, the average daily maximum UV index in April is 3. A UV Index of 3 to 5 symbolizes a medium health hazard from unsafe exposure to UV radiation for average individuals.Note: An average maximum UV index of 3 in April leads to these recommendations:
Take necessary precautions - Defending against sun damage is advocated. It's crucial to reduce time in the direct Sun around mid-day due to the intense solar radiation. On days when the sun blazes, arm yourself with sunglasses that block UVA and UVB radiation. Heads up! The UV radiation from the Sun can almost be doubled by snow reflection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in April
Clear Lake, SD
- Average high temperature in April: 53.2°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 (20.5°F).
- Average low temperature in April: 37°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 (7.2°F).
Average pressure in April
Clear Lake, SD
- Average pressure in April: 29.95"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 April
Clear Lake, SD
- Average wind speed in April: 10.9mph
The windiest month (with the highest average wind speed) is April (10.9mph).
The calmest month (with the lowest average wind speed) is July (8mph).
Average humidity in April
Clear Lake, SD
- Average humidity in April: 68%
The month with the highest relative humidity is January (89%).
The month with the lowest relative humidity is October (67%).
Average rainfall in April
Clear Lake, SD
- Average rainfall in April: 1.34"
The wettest month (with the highest rainfall) is July (2.56").
The driest month (with the least rainfall) is January (0.43").
Average rainfall days in April
Clear Lake, SD
- Average rainfall days in April: 11.1 days
The month with the highest number of rainy days is June (16.5 days).
The month with the least rainy days is January (1.7 days).
Average snowfall in April
Clear Lake, SD
- Average snowfall in April: 1.34"
The month with the highest snowfall is February (3.27").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in April
Clear Lake, SD
- Average snowfall days in April: 3.3 days
The month with the highest number of snowfall days is January (11.3 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in April /
Average sunshine in April
Clear Lake, SD
- Average daylight in April: 13h and 30min
The month with the longest days is June (Average daylight: 15h and 30min).
The month with the shortest days is December (Average daylight: 8h and 54min).
- Average sunshine in April: 7h and 48min
The month with the most sunshine is July (Average sunshine: 10h and 36min).
The month with the least sunshine is January (Average sunshine: 4h and 0min).
Average sunshine days in April
Clear Lake, SD
- Average sunshine days in April: 15.3 days
The month with the most sunshine days is November (21.5 days).
The month with the least sunshine days is June (11.3 days).
Average UV index in April
Clear Lake, SD
- Average UV index in April: 3
The months with the highest UV index are June and July (UV index 6).
The months with the lowest UV index are January and November (UV index 1).
Average cloud cover in April
Clear Lake, SD
- Average cloud cover in April: 46
The month with the most cloud cover is January (Cloud cover 58).
The month with the least cloud cover is August (Cloud cover 26).
Average visibility in April
Clear Lake, SD
- Average visibility in April: 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).
