Climate and monthly weather forecast
Sigourney, IA

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Weather in January

January, the same as December, in Sigourney, Iowa, is a freezing cold winter month, with an average temperature ranging between max 28.6°F (-1.9°C) and min 15.6°F (-9.1°C). January, noted for its average high-temperature of 28.6°F (-1.9°C) and an average low-temperature of 15.6°F (-9.1°C), is considered the coldest month. Weather in January »

Weather in February

The last month of the winter, February, is an icy month in Sigourney, Iowa, with an average temperature ranging between min 19°F (-7.2°C) and max 32.5°F (0.3°C). With February's arrival, Sigourney's weather records an average high-temperature of a cold 32.5°F (0.3°C), marking little difference from January's 28.6°F (-1.9°C). Weather in February »

Weather in March

The first month of the spring, March, is a chilly month in Sigourney, Iowa, with temperature in the range of an average low of 32.4°F (0.2°C) and an average high of 47.1°F (8.4°C). March's arrival signals a significant increase in average high-temperatures, soaring from February's icy 32.5°F (0.3°C) to a chilly 47.1°F (8.4°C). Weather in March »

Weather in April

April is a moderate spring month in Sigourney, Iowa, with an average temperature fluctuating between 59.5°F (15.3°C) and 42.4°F (5.8°C). Sigourney's transition into April sees a rise in the average high-temperature, advancing from a chilly 47.1°F (8.4°C) in March to a refreshing 59.5°F (15.3°C). Weather in April »

Weather in May

May, the last month of the spring in Sigourney, is an agreeable month, with an average temperature varying between 53.2°F (11.8°C) and 70°F (21.1°C). May's onset brings a temperature rise, moving from a refreshing 59.5°F (15.3°C) in April to a pleasant 70°F (21.1°C). Weather in May »

Weather in June

June, the first month of the summer in Sigourney, is a warm month, with an average temperature ranging between min 63.1°F (17.3°C) and max 79.3°F (26.3°C). In Sigourney, the onset of June comes with an increased average high-temperature, moving from May's agreeable 70°F (21.1°C) to a moderately hot 79.3°F (26.3°C). Weather in June »

Weather in July

July, the same as June, is a moderately hot summer month in Sigourney, Iowa, with an average temperature varying between 82°F (27.8°C) and 65.1°F (18.4°C). In Sigourney, temperatures reach their average annual highs in July, measuring 82°F (27.8°C) and a minimum average of 65.1°F (18.4°C). Throughout July, the heat index is evaluated at a tropical 89.6°F (32°C). Weather in July »

Weather in August

The last month of the summer, August, is another warm month in Sigourney, Iowa, with temperature in the range of an average high of 81.1°F (27.3°C) and an average low of 62.8°F (17.1°C). The arrival of August brings an average high-temperature of a still moderately hot 81.1°F (27.3°C), closely following the temperature pattern of July. Weather in August »

Weather in September

The first month of the autumn, September, is also a moderately hot month in Sigourney, Iowa, with an average temperature varying between 75.2°F (24°C) and 56.3°F (13.5°C). The onset of September entails a subtle temperature shift, as the average high-temperature eases from 81.1°F (27.3°C) in August to a still warm 75.2°F (24°C). Weather in September »

Weather in October

October, like September, in Sigourney, Iowa, is another comfortable autumn month, with an average temperature varying between 61.3°F (16.3°C) and 44.8°F (7.1°C). Setting in of October comes with a decrease in the average high-temperature, moving from a moderately hot 75.2°F (24°C) in September to a comfortable 61.3°F (16.3°C). Weather in October »

Weather in November

The last month of the autumn, November, is another chilly month in Sigourney, Iowa, with an average temperature ranging between max 46.9°F (8.3°C) and min 33.4°F (0.8°C). The start of November signals a clear decrease in the average high-temperature, falling from a refreshing 61.3°F (16.3°C) in October to a chilly 46.9°F (8.3°C). Weather in November »

Weather in December

December, the first month of the winter in Sigourney, is still a cold month, with an average temperature fluctuating between 23.4°F (-4.8°C) and 34.7°F (1.5°C). With December's onset, the weather shows a temperature decrease, transitioning from a frosty 46.9°F (8.3°C) in November to a cold 34.7°F (1.5°C). Weather in December »
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Frequently asked questions

What time of the year is the coldest in Sigourney?

January is the coldest month in Sigourney, with the temperature often reaching an average high of 28.6°F (-1.9°C) and an average low of 15.6°F (-9.1°C).

How many days does it rain in Sigourney?

Throughout the year, in Sigourney, there are 137.9 rainfall days, and 27.76" (705mm) of precipitation is accumulated.

When does it snow in Sigourney?

Months with snowfall are January through May, October through December.

What is the snowiest month in Sigourney?

The month with the most snowfall in Sigourney, Iowa, is January, when snow falls for 9.5 days and typically aggregates up to 4.06" (103mm) of snow.

How much does it snow in Sigourney?

Throughout the year, in Sigourney, there are 32.8 snowfall days, and 12.56" (319mm) of snow is accumulated.

What is the month with the least sunshine in Sigourney?

The month with the least sunshine in Sigourney, Iowa, is January, with an average of 4.2h of sunshine.

When is the lowest UV index in Sigourney?

January, February, October through December, with an average maximum UV index of 2, are months with the lowest UV index in Sigourney, Iowa.

What is the driest month in Sigourney?

February is the month with the least rainfall in Sigourney, Iowa. Rain falls for 4.9 days and accumulates 0.98" (25mm) of precipitation.

When is Daylight Saving Time (DST) in Sigourney?

On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts, and the time zone changes from CST to CDT. Daylight Saving Time ends Sunday, November 3. 2024, at 2:00 am, and the time zone reverts from CDT to CST.

What is the wettest month in Sigourney?

May is the month with the most rainfall in Sigourney, Iowa. Rain falls for 17.7 days and accumulates 4.17" (106mm) of precipitation.

When it does not snow in Sigourney?

In Sigourney, snow does not fall in June through September.

When are the longest days in Sigourney?

June has the longest days of the year, with an average of 15h and 6min of daylight.

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

June and July, with an average maximum UV index of 6, are months with the highest UV index in Sigourney, Iowa.

What is the hottest time of year in Sigourney?

With average high temperatures of 82°F (27.8°C) and lows of 65.1°F (18.4°C), July is the warmest month.

What is the most humid month in Sigourney?

The most humid month is July, with an average relative humidity of 83%.

What month has the most sunshine in Sigourney?

The month with the most sunshine is July, with an average of 10.3h of sunshine.

What is the least humid month in Sigourney?

With an average relative humidity of 72%, October is the least humid month in Sigourney, Iowa.

What is the month with the shortest days in Sigourney?

With an average of 9h and 18min of daylight, December has the shortest days of the year in Sigourney.

Average temperature
Sigourney, IA

Average temperature - Sigourney, IA

The warmest month (with the highest average high temperature) is July (82°F).
The month with the lowest average high temperature is January (28.6°F).

The month with the highest average low temperature is July (65.1°F).
The coldest month (with the lowest average low temperature) is January (15.6°F).

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Average pressure
Sigourney, IA

Average pressure - Sigourney, IA

The month with the highest atmospheric pressure is January (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.89"Hg).

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Average wind speed
Sigourney, IA

Average wind speed - Sigourney, IA

The windiest month (with the highest average wind speed) is January (10.7mph).
The calmest month (with the lowest average wind speed) is August (6.9mph).

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Average rainfall
Sigourney, IA

Average rainfall - Sigourney, IA

The wettest month (with the highest rainfall) is May (4.17").
The driest month (with the least rainfall) is February (0.98").

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Average rainfall days
Sigourney, IA

Average rainfall days - Sigourney, IA

The month with the highest number of rainy days is May (17.7 days).
The month with the least rainy days is February (4.9 days).

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Average snowfall
Sigourney, IA

Average snowfall - Sigourney, IA

The month with the highest snowfall is January (4.06").
The months with the least snowfall are June, July, August and September (0").

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Average snowfall days
Sigourney, IA

Average snowfall days - Sigourney, IA

The month with the highest number of snowfall days is January (9.5 days).
The months with the least snowfall days are June, July, August and September (0 days).

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Average daylight / Average sunshine
Sigourney, IA

Average daylight / Average sunshine - Sigourney, IA

The month with the longest days is June (Average daylight: 15h and 6min).
The month with the shortest days is December (Average daylight: 9h and 18min).

The month with the most sunshine is July (Average sunshine: 10h and 18min).
The month with the least sunshine is January (Average sunshine: 4h and 12min).

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Average sunshine days
Sigourney, IA

Average sunshine days - Sigourney, IA

The month with the most sunshine days is December (19.1 days).
The month with the least sunshine days is June (10.3 days).

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Average UV index
Sigourney, IA

Average UV index - Sigourney, IA

The months with the highest UV index are June and July (UV index 6).
The months with the lowest UV index are January, February, October, November and December (UV index 2).

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Average visibility
Sigourney, IA

Average visibility - Sigourney, IA

The months with the highest visibility are January, February, March, April, May, June, August, September, October, November and December (6mi).
The month with the lowest visibility is July (5mi).

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Sigourney, Iowa, USA

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