Climate and monthly weather forecast
Clear Lake, IA

Weather in January

January, like December, is a freezing cold winter month in Clear Lake, Iowa, with an average temperature ranging between min 9.9°F (-12.3°C) and max 22.3°F (-5.4°C). The coldest month is January, with an average high-temperature of 22.3°F (-5.4°C) and an average low-temperature of 9.9°F (-12.3°C). Weather in January »

Weather in February

The last month of the winter, February, is also a subzero cold month in Clear Lake, Iowa, with an average temperature ranging between min 13.5°F (-10.3°C) and max 26.4°F (-3.1°C). In February, the average high-temperature is practically the same as in January - a still freezing cold 26.4°F (-3.1°C). Weather in February »

Weather in March

The first month of the spring, March, is a wintry month in Clear Lake, Iowa, with temperature in the range of an average high of 41.4°F (5.2°C) and an average low of 27.9°F (-2.3°C). In March, the average high-temperature significantly increases from a subzero cold 26.4°F (-3.1°C) in February to a wintry 41.4°F (5.2°C). Weather in March »

Weather in April

April in Clear Lake, Iowa, is a cool spring month, with temperature in the range of an average low of 39.7°F (4.3°C) and an average high of 54.9°F (12.7°C). In April, the average high-temperature rises from a wintry 41.4°F (5.2°C) in March to a fresh 54.9°F (12.7°C). Weather in April »

Weather in May

May, the last month of the spring in Clear Lake, is a comfortable month, with an average temperature varying between 67.3°F (19.6°C) and 51.3°F (10.7°C). In Clear Lake, Iowa, the average high-temperature in May increases from a cool 54.9°F (12.7°C) in April to an enjoyable 67.3°F (19.6°C). Weather in May »

Weather in June

The first month of the summer, June, is a moderately hot month in Clear Lake, Iowa, with temperature in the range of an average low of 60.8°F (16°C) and an average high of 76.8°F (24.9°C). In Clear Lake, the average high-temperature in June increases from an enjoyable 67.3°F (19.6°C) in May to a moderately hot 76.8°F (24.9°C). Weather in June »

Weather in July

July, the same as June, is a moderately hot summer month in Clear Lake, Iowa, with temperature in the range of an average high of 79.3°F (26.3°C) and an average low of 62.6°F (17°C). July is the warmest month, with an average high-temperature of 79.3°F (26.3°C) and an average low-temperature of 62.6°F (17°C). Weather in July »

Weather in August

August, the last month of the summer in Clear Lake, is also a moderately hot month, with an average temperature varying between 77.4°F (25.2°C) and 60.3°F (15.7°C). In Clear Lake, Iowa, the average high-temperature in August is almost the same as in July - a still warm 77.4°F (25.2°C). Weather in August »

Weather in September

The first month of the autumn, September, is also an agreeable month in Clear Lake, Iowa, with an average temperature ranging between min 53.8°F (12.1°C) and max 72.3°F (22.4°C). In Clear Lake, the average high-temperature in September is practically the same as in August - an agreeable 72.3°F (22.4°C). Weather in September »

Weather in October

October, the same as September, in Clear Lake, Iowa, is another mild autumn month, with temperature in the range of an average low of 42.3°F (5.7°C) and an average high of 57.4°F (14.1°C). In Clear Lake, the average high-temperature in October plummets from a pleasant 72.3°F (22.4°C) in September to a moderate 57.4°F (14.1°C). Weather in October »

Weather in November

November, the last month of the autumn in Clear Lake, is another cold month, with temperature in the range of an average high of 42.6°F (5.9°C) and an average low of 30.2°F (-1°C). In November, the average high-temperature significantly decreases from a moderate 57.4°F (14.1°C) in October to a wintry 42.6°F (5.9°C). Weather in November »

Weather in December

The first month of the winter, December, is still a freezing cold month in Clear Lake, Iowa, with temperature in the range of an average high of 28.2°F (-2.1°C) and an average low of 17.8°F (-7.9°C). In Clear Lake, the average high-temperature in December significantly decreases from a cold 42.6°F (5.9°C) in November to a freezing cold 28.2°F (-2.1°C). Weather in December »
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FAQ

What is the coldest month in Clear Lake?

The coldest month is January, with an average high-temperature of 22.3°F (-5.4°C) and an average low-temperature of 9.9°F (-12.3°C).

What is the most humid month in Clear Lake?

With an average relative humidity of 89%, January is the most humid month.

What is the driest month in Clear Lake?

January is the month with the least rainfall. Rain falls for 4.5 days and accumulates 1.06" (27mm) of precipitation.

How much does it rain in Clear Lake?

In Clear Lake, Iowa, during the entire year, the rain falls for 145.9 days and collects up to 28.82" (732mm) of precipitation.

When does it snow in Clear Lake?

Months with snowfall in Clear Lake are January through May, October through December.

How much does it snow in Clear Lake?

Throughout the year, in Clear Lake, Iowa, there are 60.2 snowfall days, and 26.26" (667mm) of snow is accumulated.

What is the month with the least sunshine in Clear Lake?

With an average of 3.5h of sunshine, January has the least sunshine of the year in Clear Lake.

What is the month with the lowest UV index in Clear Lake?

January and December, with an average maximum UV index of 1, are months with the lowest UV index in Clear Lake, Iowa.

When does it snow the most in Clear Lake?

The month with the most snowfall is February, when snow falls for 12.9 days and typically aggregates up to 7.48" (190mm) of snow.

When is Daylight Saving Time (DST) in Clear Lake?

On Sunday, March 12. 2023, at 2:00 am, Daylight Saving Time starts in Clear Lake, and the time zone changes from CST to CDT. Daylight Saving Time ends Sunday, November 5. 2023, at 2:00 am, and the time zone reverts from CDT to CST.

What is the rainiest month in Clear Lake?

The month with the most rainfall in Clear Lake, Iowa, is June, when the rain falls for 19.8 days and typically aggregates up to 4.65" (118mm) of precipitation.

When it does not snow in Clear Lake?

June through September are months without snowfall in Clear Lake, Iowa.

When are the longest days in Clear Lake?

The month with the longest days in Clear Lake, Iowa, is June, with an average of 15h and 19min of daylight.

What is the month with the highest UV index in Clear Lake?

The month with the highest UV index in Clear Lake, Iowa, is June, with an average maximum UV index of 6.

What is the warmest month in Clear Lake?

The warmest month is July, with an average high-temperature of 79.3°F (26.3°C) and an average low-temperature of 62.6°F (17°C).

What month has the most sunshine in Clear Lake?

With an average of 9.8h of sunshine, July has the most sunshine of the year.

What is the least humid month in Clear Lake?

With an average relative humidity of 71%, October is the least humid month.

What is the month with the shortest days in Clear Lake?

December has the shortest days of the year in Clear Lake, with an average of 9h and 3min of daylight.

Average temperature
Clear Lake, IA

Average temperature - Clear Lake, IA

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).

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).

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Average pressure
Clear Lake, IA

Average pressure - Clear Lake, IA

The month with the highest atmospheric pressure is January (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.88"Hg).

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Average wind speed
Clear Lake, IA

Average wind speed - Clear Lake, IA

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).

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Average rainfall
Clear Lake, IA

Average rainfall - Clear Lake, IA

The wettest month (with the highest rainfall) is June (4.65").
The driest month (with the least rainfall) is January (1.06").

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Average rainfall days
Clear Lake, IA

Average rainfall days - Clear Lake, IA

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).

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Average snowfall
Clear Lake, IA

Average snowfall - Clear Lake, IA

The month with the highest snowfall is February (7.48").
The months with the least snowfall are June, July, August and September (0").

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Average snowfall days
Clear Lake, IA

Average snowfall days - Clear Lake, IA

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).

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Average daylight / Average sunshine
Clear Lake, IA

Average daylight / Average sunshine - Clear Lake, IA

The month with the longest days is June (Average daylight: 15h and 19min).
The month with the shortest days is December (Average daylight: 9h and 3min).

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).

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Average sunshine days
Clear Lake, IA

Average sunshine days - Clear Lake, IA

The month with the most sunshine days is November (17.2 days).
The month with the least sunshine days is June (8 days).

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Average visibility
Clear Lake, IA

Average visibility - Clear Lake, IA

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).

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