Contents
- Weather in April
- Frequently asked questions
- Average temperature in April
- Average pressure in April
- Average wind speed in April
- Average humidity in April
- Average rainfall in April
- Average rainfall days in April
- Average snowfall in April
- Average snowfall days in April
- Average daylight in April
- Average sunshine in April
- Average sunshine days in April
- Average UV index in April
- Average cloud cover in April
- Average visibility in April
Weather in April
Temperature
Clear Lake's transition into April sees a rise in the average high-temperature, advancing from an icy 41.4°F (5.2°C) in March to a cool 54.9°F (12.7°C). An average nighttime temperature of 39.7°F (4.3°C) is observed during April.Humidity
The average relative humidity in April is 72%.Rainfall
In April, in Clear Lake, the rain falls for 16.3 days. Throughout April, 3.07" (78mm) of precipitation is accumulated. In Clear Lake, during the entire year, the rain falls for 145.9 days and collects up to 28.82" (732mm) of precipitation.Snowfall
Months with snowfall in Clear Lake, Iowa, are January through May, October through December. In Clear Lake, during April, snow falls for 2.9 days and regularly aggregates up to 2.48" (63mm) of snow. Throughout the year, in Clear Lake, there are 60.2 snowfall days, and 26.26" (667mm) of snow is accumulated.Daylight
The average length of the day in April is 13h and 26min.On the first day of the month, sunrise is at 6:53 am and sunset at 7:40 pm. On the last day of April, in Clear Lake, Iowa, sunrise is at 6:07 am and sunset at 8:14 pm CDT.
Sunshine
The average sunshine in April in Clear Lake is 7.6h.UV index
In Clear Lake, the average daily maximum UV index in April is 3. A UV Index reading of 3 to 5 represents a moderate health risk from unprotected exposure to Sun's UV rays for average individuals.Note: The maximum UV index of 3 during April leads to these instructions:
Make use of precautions - Shielding skin and eyes from injury is a requirement. For health reasons, it's advisable to reduce direct sun exposure during peak hours around midday. Sunglasses that ward off UVA and UVB rays play a pivotal role in reducing solar eye damage. Be attentive! The reflective property of snow can nearly double the Sun's UV radiation.
Frequently asked questions
What is the average April temperature in Clear Lake?
What is the average humidity in April in Clear Lake?
How much does it rain in Clear Lake in April?
How much does it snow in Clear Lake in April?
How many hours of daylight does Clear Lake have in April?
What time are sunrise and sunset in April in Clear Lake?
How many hours of sunshine does Clear Lake have in April?
What is the UV index intensity in April in Clear Lake?
Average temperature in April
Clear Lake, IA
- Average high temperature in April: 54.9°F
The warmest month (with the highest average high temperature) is July (79.3°F).
The month with the lowest average high temperature is January (22.3°F).
- Average low temperature in April: 39.7°F
The month with the highest average low temperature is July (62.6°F).
The coldest month (with the lowest average low temperature) is January (9.9°F).
Average pressure in April
Clear Lake, IA
- Average pressure in April: 29.93"Hg
The month with the highest atmospheric pressure is January (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.88"Hg).
Average wind speed in April
Clear Lake, IA
- Average wind speed in April: 10.9mph
The windiest months (with the highest average wind speed) are January and April (10.9mph).
The calmest months (with the lowest average wind speed) are July and August (7.3mph).
Average humidity in April
Clear Lake, IA
- Average humidity in April: 72%
The month with the highest relative humidity is January (89%).
The month with the lowest relative humidity is October (71%).
Average rainfall in April
Clear Lake, IA
- Average rainfall in April: 3.07"
The wettest month (with the highest rainfall) is June (4.65").
The driest month (with the least rainfall) is January (1.06").
Average rainfall days in April
Clear Lake, IA
- Average rainfall days in April: 16.3 days
The month with the highest number of rainy days is June (19.8 days).
The month with the least rainy days is February (3.8 days).
Average snowfall in April
Clear Lake, IA
- Average snowfall in April: 2.48"
The month with the highest snowfall is February (7.48").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in April
Clear Lake, IA
- Average snowfall days in April: 2.9 days
The month with the highest number of snowfall days is January (14.6 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, IA
- Average daylight in April: 13h and 2min
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 April: 7h and 4min
The month with the most sunshine is July (Average sunshine: 9h and 48min).
The month with the least sunshine is January (Average sunshine: 3h and 30min).
Average sunshine days in April
Clear Lake, IA
- Average sunshine days in April: 11 days
The month with the most sunshine days is November (17.2 days).
The month with the least sunshine days is June (8 days).
Average UV index in April
Clear Lake, IA
- Average UV index in April: 3
The month with the highest UV index is June (UV index 6).
The months with the lowest UV index are January and December (UV index 1).
Average cloud cover in April
Clear Lake, IA
- Average cloud cover in April: 48
The month with the most cloud cover is January (Cloud cover 63).
The month with the least cloud cover is August (Cloud cover 32).
Average visibility in April
Clear Lake, IA
- Average visibility in April: 6mi
The months with the highest visibility are March, April, May, June, August, September, October and November (6mi).
The months with the lowest visibility are January, February, July and December (5mi).
Clear Lake, Iowa, USA
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