Climate and monthly weather forecast
Spencer, IA

Weather in January

January, the same as December, in Spencer, Iowa, is a freezing cold winter month, with temperature in the range of an average high of 22.8°F (-5.1°C) and an average low of 10.6°F (-11.9°C). January is the coldest month, with an average high-temperature of 22.8°F (-5.1°C) and an average low-temperature of 10.6°F (-11.9°C). Weather in January »

Weather in February

The last month of the winter, February, is also a subzero cold month in Spencer, Iowa, with an average temperature ranging between max 27°F (-2.8°C) and min 13.5°F (-10.3°C). In February, the average high-temperature is almost the same as in January - a still subzero cold 27°F (-2.8°C). Weather in February »

Weather in March

The first month of the spring, March, is a cold month in Spencer, Iowa, with an average temperature fluctuating between 28.2°F (-2.1°C) and 42.4°F (5.8°C). In Spencer, the average high-temperature in March increases considerably from a subzero cold 27°F (-2.8°C) in February to a wintry 42.4°F (5.8°C). Weather in March »

Weather in April

April is a mild spring month in Spencer, Iowa, with temperature in the range of an average high of 55.6°F (13.1°C) and an average low of 39.7°F (4.3°C). In Spencer, Iowa, the average high-temperature in April rises from a wintry 42.4°F (5.8°C) in March to a moderate 55.6°F (13.1°C). Weather in April »

Weather in May

May, the last month of the spring in Spencer, is an enjoyable month, with an average temperature varying between 51.4°F (10.8°C) and 67.8°F (19.9°C). In May, the average high-temperature increases from a moderate 55.6°F (13.1°C) in April to an enjoyable 67.8°F (19.9°C). Weather in May »

Weather in June

June, the first month of the summer in Spencer, is a moderately hot month, with an average temperature ranging between max 77.4°F (25.2°C) and min 61.2°F (16.2°C). In June, the average high-temperature rises from a comfortable 67.8°F (19.9°C) in May to a warm 77.4°F (25.2°C). Weather in June »

Weather in July

July, like June, in Spencer, Iowa, is a moderately hot summer month, with an average temperature ranging between min 63.1°F (17.3°C) and max 80.2°F (26.8°C). July is the warmest month, with an average high-temperature of 80.2°F (26.8°C) and an average low-temperature of 63.1°F (17.3°C). Weather in July »

Weather in August

The last month of the summer, August, is another warm month in Spencer, Iowa, with an average temperature varying between 59.5°F (15.3°C) and 78.3°F (25.7°C). In August, the average high-temperature is relatively the same as in July - a still warm 78.3°F (25.7°C). Weather in August »

Weather in September

The first month of the autumn, September, is still a pleasant month in Spencer, Iowa, with an average temperature ranging between max 72.9°F (22.7°C) and min 53.8°F (12.1°C). In September, the average high-temperature slightly decreases from a warm 78.3°F (25.7°C) in August to an agreeable 72.9°F (22.7°C). Weather in September »

Weather in October

October, the same as September, in Spencer, Iowa, is a moderate autumn month, with an average temperature ranging between max 57.2°F (14°C) and min 42.1°F (5.6°C). In October, the average high-temperature significantly decreases from a pleasant 72.9°F (22.7°C) in September to a mild 57.2°F (14°C). Weather in October »

Weather in November

The last month of the autumn, November, is another chilly month in Spencer, Iowa, with an average temperature varying between 29.7°F (-1.3°C) and 43.2°F (6.2°C). In November, the average high-temperature decreases from a mild 57.2°F (14°C) in October to a chilly 43.2°F (6.2°C). Weather in November »

Weather in December

December, the first month of the winter in Spencer, is still a freezing cold month, with an average temperature varying between 27.5°F (-2.5°C) and 16.9°F (-8.4°C). In December, the average high-temperature significantly decreases from a chilly 43.2°F (6.2°C) in November to a freezing cold 27.5°F (-2.5°C). Weather in December »
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FAQ

What is the coldest month in Spencer?

January is the coldest month in Spencer, Iowa, with an average high-temperature of 22.8°F (-5.1°C) and an average low-temperature of 10.6°F (-11.9°C).

What is the most humid month in Spencer?

The most humid month is January, with an average relative humidity of 87%.

What is the driest month in Spencer?

January is the month with the least rainfall. Rain falls for 3.1 days and accumulates 0.43" (11mm) of precipitation.

How much does it rain in Spencer?

In Spencer, Iowa, during the entire year, the rain falls for 112.3 days and collects up to 15.31" (389mm) of precipitation.

When does it snow in Spencer?

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

How many days does it snow in Spencer?

Throughout the year, there are 45.5 snowfall days, and 11.14" (283mm) of snow is accumulated.

What is the month with the least sunshine in Spencer?

The month with the least sunshine in Spencer, Iowa, is January, with an average of 4h of sunshine.

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

January and February, with an average maximum UV index of 1, are months with the lowest UV index in Spencer.

What is the snowiest month in Spencer?

February is the month with the most snowfall. Snow falls for 9.5 days and accumulates 2.72" (69mm) of snow.

When is Daylight Saving Time (DST) in Spencer?

On Sunday, March 12. 2023, at 2:00 am, Daylight Saving Time starts in Spencer, 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 Spencer?

The month with the most rainfall in Spencer, Iowa, is June, when the rain falls for 15.4 days and typically aggregates up to 2.44" (62mm) of precipitation.

When it does not snow in Spencer?

June through September are months without snowfall in Spencer, Iowa.

When are the longest days in Spencer?

With an average of 15h and 20min of daylight, June has the longest days of the year.

When is the highest UV index in Spencer?

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

What is the warmest month in Spencer?

With an average high-temperature of 80.2°F (26.8°C) and an average low-temperature of 63.1°F (17.3°C), July is the warmest month.

What month has the most sunshine in Spencer?

With an average of 10.4h of sunshine, July has the most sunshine of the year in Spencer.

What is the least humid month in Spencer?

October is the least humid month, with an average relative humidity of 68%.

What is the month with the shortest days in Spencer?

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

Average temperature
Spencer, IA

Average temperature - Spencer, IA

The warmest month (with the highest average high temperature) is July (80.2°F).
The month with the lowest average high temperature is January (22.8°F).

The month with the highest average low temperature is July (63.1°F).
The coldest month (with the lowest average low temperature) is January (10.6°F).

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Average pressure
Spencer, IA

Average pressure - Spencer, IA

The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.87"Hg).

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Average wind speed
Spencer, IA

Average wind speed - Spencer, IA

The windiest months (with the highest average wind speed) are January and April (11.1mph).
The calmest month (with the lowest average wind speed) is July (7.6mph).

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Average rainfall
Spencer, IA

Average rainfall - Spencer, IA

The wettest month (with the highest rainfall) is June (2.44").
The driest month (with the least rainfall) is January (0.43").

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Average rainfall days
Spencer, IA

Average rainfall days - Spencer, IA

The month with the highest number of rainy days is May (15.5 days).
The month with the least rainy days is February (2.7 days).

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Average snowfall
Spencer, IA

Average snowfall - Spencer, IA

The month with the highest snowfall is February (2.72").
The months with the least snowfall are June, July, August and September (0").

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Average snowfall days
Spencer, IA

Average snowfall days - Spencer, IA

The month with the highest number of snowfall days is January (10.8 days).
The months with the least snowfall days are June, July, August and September (0 days).

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Average daylight / Average sunshine
Spencer, IA

Average daylight / Average sunshine - Spencer, IA

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).

The month with the most sunshine is July (Average sunshine: 10h and 24min).
The month with the least sunshine is January (Average sunshine: 4h and 0min).

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Average sunshine days
Spencer, IA

Average sunshine days - Spencer, IA

The month with the most sunshine days is November (20.1 days).
The month with the least sunshine days is June (10.8 days).

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Average visibility
Spencer, IA

Average visibility - Spencer, IA

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

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