Climate and monthly weather forecast
Calmar, IA

Weather in January

January, the same as December, in Calmar, Iowa, is a freezing cold winter month, with temperature in the range of an average high of 22.3°F (-5.4°C) and an average low of 9.7°F (-12.4°C). The coldest month is January, with an average high-temperature of 22.3°F (-5.4°C) and an average low-temperature of 9.7°F (-12.4°C). Weather in January »

Weather in February

The last month of the winter, February, is another freezing cold month in Calmar, Iowa, with an average temperature ranging between max 26.1°F (-3.3°C) and min 12.7°F (-10.7°C). In February, the average high-temperature is almost the same as in January - a still subzero cold 26.1°F (-3.3°C). Weather in February »

Weather in March

March, the first month of the spring in Calmar, is a wintry month, with an average temperature varying between 41°F (5°C) and 26.8°F (-2.9°C). In Calmar, the average high-temperature in March significantly increases from a freezing cold 26.1°F (-3.3°C) in February to a wintry 41°F (5°C). Weather in March »

Weather in April

April in Calmar, Iowa, is a cool spring month, with an average temperature fluctuating between 37.4°F (3°C) and 54°F (12.2°C). In April, the average high-temperature rises from a wintry 41°F (5°C) in March to a cool 54°F (12.2°C). Weather in April »

Weather in May

May, the last month of the spring in Calmar, is a comfortable month, with an average temperature ranging between min 48.7°F (9.3°C) and max 65.7°F (18.7°C). In May, the average high-temperature increases from a fresh 54°F (12.2°C) in April to an enjoyable 65.7°F (18.7°C). Weather in May »

Weather in June

The first month of the summer, June, is a warm month in Calmar, Iowa, with an average temperature ranging between min 58.6°F (14.8°C) and max 75°F (23.9°C). In Calmar, the average high-temperature in June rises from a comfortable 65.7°F (18.7°C) in May to a moderately hot 75°F (23.9°C). Weather in June »

Weather in July

July, the same as June, is a moderately hot summer month in Calmar, Iowa, with an average temperature fluctuating between 78.4°F (25.8°C) and 61.9°F (16.6°C). With an average high-temperature of 78.4°F (25.8°C) and an average low-temperature of 61.9°F (16.6°C), July is the warmest month. Weather in July »

Weather in August

August, the last month of the summer in Calmar, is another warm month, with an average temperature fluctuating between 77.2°F (25.1°C) and 59.4°F (15.2°C). In Calmar, Iowa, the average high-temperature in August is almost the same as in July - a still warm 77.2°F (25.1°C). Weather in August »

Weather in September

The first month of the autumn, September, is also an agreeable month in Calmar, Iowa, with an average temperature varying between 70.7°F (21.5°C) and 52°F (11.1°C). In Calmar, Iowa, the average high-temperature in September marginally drops from a moderately hot 77.2°F (25.1°C) in August to an agreeable 70.7°F (21.5°C). Weather in September »

Weather in October

October, the same as September, in Calmar, Iowa, is another mild autumn month, with an average temperature varying between 56.3°F (13.5°C) and 41.2°F (5.1°C). In October, the average high-temperature significantly decreases from a pleasant 70.7°F (21.5°C) in September to a mild 56.3°F (13.5°C). Weather in October »

Weather in November

The last month of the autumn, November, is another cold month in Calmar, Iowa, with an average temperature fluctuating between 29.3°F (-1.5°C) and 41.9°F (5.5°C). In November, the average high-temperature declines considerably from a mild 56.3°F (13.5°C) in October to a cold 41.9°F (5.5°C). Weather in November »

Weather in December

The first month of the winter, December, is still a freezing cold month in Calmar, Iowa, with an average temperature fluctuating between 28.4°F (-2°C) and 18.3°F (-7.6°C). In Calmar, the average high-temperature in December drops from a cold 41.9°F (5.5°C) in November to a subzero cold 28.4°F (-2°C). Weather in December »
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FAQ

What is the coldest month in Calmar?

January is the coldest month in Calmar, with an average high-temperature of 22.3°F (-5.4°C) and an average low-temperature of 9.7°F (-12.4°C).

What is the most humid month in Calmar?

January and February, with an average relative humidity of 89%, are most humid months in Calmar.

What is the driest month in Calmar?

January is the month with the least rainfall in Calmar. Rain falls for 4.5 days and accumulates 1.1" (28mm) of precipitation.

How many days does it rain in Calmar?

In Calmar, during the entire year, the rain falls for 149 days and collects up to 30.59" (777mm) of precipitation.

When does it snow in Calmar?

Months with snowfall in Calmar, Iowa, are January through May, October through December.

How much does it snow in Calmar?

In Calmar, during the entire year, snow falls for 60.9 days and aggregates up to 24.37" (619mm) of snow.

What is the month with the least sunshine in Calmar?

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

What is the month with the lowest UV index in Calmar?

The months with the lowest UV index are January, February, November and December, with an average maximum UV index of 1.

When does it snow the most in Calmar?

The month with the most snowfall in Calmar, Iowa, is February, when snow falls for 12.8 days and typically aggregates up to 5.98" (152mm) of snow.

When is Daylight Saving Time (DST) in Calmar?

On Sunday, March 13. 2022, at 2:00 am, Daylight Saving Time starts, and the time zone changes from CST to CDT. Daylight Saving Time ends Sunday, November 6. 2022, at 2:00 am, and the time zone reverts from CDT to CST.

What is the month with the highest UV index in Calmar?

The months with the highest UV index in Calmar, Iowa, are May through August, with an average maximum UV index of 5.

What is the rainiest month in Calmar?

The month with the most rainfall is June, when the rain falls for 20.3 days and typically aggregates up to 5.04" (128mm) of precipitation.

When it does not snow in Calmar?

June through September are months without snowfall.

When are the longest days in Calmar?

The month with the longest days in Calmar, Iowa, is June, with an average of 15h and 20min of daylight.

What is the warmest month in Calmar?

With an average high-temperature of 78.4°F (25.8°C) and an average low-temperature of 61.9°F (16.6°C), July is the warmest month in Calmar.

What month has the most sunshine in Calmar?

August has the most sunshine of the year in Calmar, Iowa, with an average of 9.8h of sunshine.

What is the least humid month in Calmar?

October is the least humid month in Calmar, with an average relative humidity of 76%.

What is the month with the shortest days in Calmar?

The month with the shortest days in Calmar is December, with an average of 9h and 3min of daylight.

Average pressure
Calmar, IA

Average pressure - Calmar, IA

The months with the highest atmospheric pressure are January and February (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.89"Hg).

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Average wind speed
Calmar, IA

Average wind speed - Calmar, IA

The windiest month (with the highest average wind speed) is April (10.4mph).
The calmest month (with the lowest average wind speed) is August (7mph).

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Average humidity
Calmar, IA

Average humidity - Calmar, IA

The months with the highest relative humidity are January and February (89%).
The month with the lowest relative humidity is October (76%).

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Average rainfall
Calmar, IA

Average rainfall - Calmar, IA

The wettest month (with the highest rainfall) is June (5.04").
The driest month (with the least rainfall) is January (1.1").

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Average rainfall days
Calmar, IA

Average rainfall days - Calmar, IA

The months with the highest number of rainy days are May and June (20.3 days).
The month with the least rainy days is February (4.4 days).

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Average snowfall
Calmar, IA

Average snowfall - Calmar, IA

The month with the highest snowfall is February (5.98").
The months with the least snowfall are June, July, August and September (0").

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Average snowfall days
Calmar, IA

Average snowfall days - Calmar, IA

The month with the highest number of snowfall days is January (14.3 days).
The months with the least snowfall days are June, July, August and September (0 days).

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Average daylight / Average sunshine
Calmar, IA

Average daylight / Average sunshine - Calmar, IA

The month with the longest days is June (Average daylight: 15h and 20min).
The month with the shortest days is December (Average daylight: 9h and 3min).

The month with the most sunshine is August (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
Calmar, IA

Average sunshine days - Calmar, IA

The month with the most sunshine days is November (16.2 days).
The month with the least sunshine days is June (7.1 days).

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Average UV index
Calmar, IA

Average UV index - Calmar, IA

The months with the highest UV index are May, June, July and August (UV index 5).
The months with the lowest UV index are January, February, November and December (UV index 1).

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Average visibility
Calmar, IA

Average visibility - Calmar, 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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