Climate and monthly weather forecast
Julien, IA

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Weather in January

January, the same as December, in Julien, Iowa, is another subzero cold winter month, with an average temperature varying between 12.4°F (-10.9°C) and 25°F (-3.9°C). January, with its average high-temperature of 25°F (-3.9°C) and an average low-temperature of 12.4°F (-10.9°C), holds the record as the coldest month. Weather in January »

Weather in February

The last month of the winter, February, is another freezing cold month in Julien, Iowa, with an average temperature ranging between max 28.6°F (-1.9°C) and min 15.3°F (-9.3°C). February's weather records an average high-temperature of a still freezing cold 28.6°F (-1.9°C), showing little deviation from January. Weather in February »

Weather in March

March, the first month of the spring in Julien, is a chilly month, with an average temperature fluctuating between 43.3°F (6.3°C) and 28.4°F (-2°C). Julien in March experiences a marked increase in the average high-temperature, ascending from February's freezing cold 28.6°F (-1.9°C) to a frosty 43.3°F (6.3°C). Weather in March »

Weather in April

April in Julien, Iowa, is a mild spring month, with temperature in the range of an average high of 55.9°F (13.3°C) and an average low of 38.8°F (3.8°C). The onset of April brings a temperature shift, with the average high-temperature moving from a chilly 43.3°F (6.3°C) in March to a mild 55.9°F (13.3°C). Weather in April »

Weather in May

May, the last month of the spring in Julien, is a refreshing month, with an average temperature varying between 50.2°F (10.1°C) and 66.9°F (19.4°C). The start of May brings a rise in the average high-temperature, moving from a mild 55.9°F (13.3°C) in April to a comfortable 66.9°F (19.4°C). Weather in May »

Weather in June

The first month of the summer, June, is a moderately hot month in Julien, Iowa, with an average temperature ranging between min 59.4°F (15.2°C) and max 76.3°F (24.6°C). Julien's transition into June sees a rise in the average high-temperature, advancing from an enjoyable 66.9°F (19.4°C) in May to a warm 76.3°F (24.6°C). Weather in June »

Weather in July

July, the same as June, is a moderately hot summer month in Julien, Iowa, with an average temperature varying between 79.7°F (26.5°C) and 62.8°F (17.1°C). In Julien, temperatures reach their average annual highs in July, measuring 79.7°F (26.5°C) and a minimum average of 62.8°F (17.1°C). Weather in July »

Weather in August

The last month of the summer, August, is another warm month in Julien, Iowa, with an average temperature fluctuating between 78.6°F (25.9°C) and 60.4°F (15.8°C). With the onset of August, the average high-temperature registers at a still warm 78.6°F (25.9°C), subtly different from July's 79.7°F (26.5°C). Weather in August »

Weather in September

The first month of the autumn, September, is also an agreeable month in Julien, Iowa, with temperature in the range of an average low of 53.2°F (11.8°C) and an average high of 72.5°F (22.5°C). Transitioning from August to September involves a subtle drop in average high-temperatures, descending from a warm 78.6°F (25.9°C) to a pleasant 72.5°F (22.5°C). Weather in September »

Weather in October

October, like September, is another refreshing autumn month in Julien, Iowa, with temperature in the range of an average low of 41.9°F (5.5°C) and an average high of 58.1°F (14.5°C). As October sets, the average high-temperature displays a significant decrease, moving down from an agreeable 72.5°F (22.5°C) in September to a mild 58.1°F (14.5°C). Weather in October »

Weather in November

November, the last month of the autumn in Julien, is another chilly month, with an average temperature ranging between min 30.6°F (-0.8°C) and max 43.9°F (6.6°C). In November, the average high-temperature decreases from a moderate 58.1°F (14.5°C) in October to a frosty 43.9°F (6.6°C). Weather in November »

Weather in December

December, the first month of the winter in Julien, is also a subzero cold month, with an average temperature ranging between min 21°F (-6.1°C) and max 31.5°F (-0.3°C). Stepping into December, Julien observes a temperature decline, with the average high falling from November's chilly 43.9°F (6.6°C) to a subzero cold 31.5°F (-0.3°C). Weather in December »
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Frequently asked questions

What time of the year is the coldest in Julien?

Julien experiences its average lowest temperatures in January, reaching a peak of 25°F (-3.9°C) and a minimum of 12.4°F (-10.9°C).

What is the most humid month in Julien?

The months with the highest humidity in Julien, Iowa, are January and February, with an average relative humidity of 87%.

What is the driest month in Julien?

The months with the least rainfall are January and February Rain falls for 4.8 days and accumulates 1.14" (29mm) of rain.

How many days does it rain in Julien?

Throughout the year, in Julien, there are 135.3 rainfall days, and 27.4" (696mm) of precipitation is accumulated.

When does it snow in Julien?

January through April, October through December are months with snowfall.

What is the snowiest month in Julien?

The month with the most snowfall in Julien, Iowa, is January, when snow falls for 12.8 days and typically aggregates up to 4.88" (124mm) of snow.

How many days does it snow in Julien?

In Julien, during the entire year, snow falls for 43.9 days and aggregates up to 17.09" (434mm) of snow.

What is the month with the least sunshine in Julien?

January has the least sunshine of the year in Julien, with an average of 3.5h of sunshine.

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

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

When is Daylight Saving Time (DST) in Julien?

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 rainiest month in Julien?

The wettest months are May and June, with an average 3.7" (94mm) of rainfall.

When it does not snow in Julien?

In Julien, Iowa, snow does not fall in May through September.

When are the longest days in Julien?

June has the longest days of the year in Julien, Iowa, with an average of 15h and 12min of daylight.

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

With an average maximum UV index of 6, June is the month with the highest UV index in Julien, Iowa.

What time of the year is the hottest in Julien?

In Julien, July registers the highest temperatures, averaging 79.7°F (26.5°C) at the peak and 62.8°F (17.1°C) at the lowest.

What is the month with the most sunshine in Julien?

July and August, with an average of 9.7h of sunshine, are months with the most sunshine.

What is the least humid month in Julien?

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

What is the month with the shortest days in Julien?

The month with the shortest days in Julien, Iowa, is December, with an average of 9h and 6min of daylight.

Average temperature
Julien, IA

Average temperature - Julien, IA

The warmest month (with the highest average high temperature) is July (79.7°F).
The month with the lowest average high temperature is January (25°F).

The month with the highest average low temperature is July (62.8°F).
The coldest month (with the lowest average low temperature) is January (12.4°F).

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Average pressure
Julien, IA

Average pressure - Julien, IA

The month with the highest atmospheric pressure is January (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.9"Hg).

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Average wind speed
Julien, IA

Average wind speed - Julien, IA

The windiest month (with the highest average wind speed) is April (10.4mph).
The calmest months (with the lowest average wind speed) are July and August (6.8mph).

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Average humidity
Julien, IA

Average humidity - Julien, IA

The months with the highest relative humidity are January and February (87%).
The month with the lowest relative humidity is October (76%).

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Average rainfall
Julien, IA

Average rainfall - Julien, IA

The wettest months (with the highest rainfall) are May and June (3.7").
The driest months (with the least rainfall) are January and February (1.14").

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Average rainfall days
Julien, IA

Average rainfall days - Julien, IA

The month with the highest number of rainy days is May (17.7 days).
The month with the least rainy days is February (4.4 days).

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Average snowfall
Julien, IA

Average snowfall - Julien, IA

The month with the highest snowfall is January (4.88").
The months with the least snowfall are May, June, July, August and September (0").

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Average snowfall days
Julien, IA

Average snowfall days - Julien, IA

The month with the highest number of snowfall days is January (12.8 days).
The months with the least snowfall days are May, June, July, August and September (0 days).

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Average daylight / Average sunshine
Julien, IA

Average daylight / Average sunshine - Julien, IA

The month with the longest days is June (Average daylight: 15h and 12min).
The month with the shortest days is December (Average daylight: 9h and 6min).

The months with the most sunshine are July and August (Average sunshine: 9h and 42min).
The month with the least sunshine is January (Average sunshine: 3h and 30min).

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Average sunshine days
Julien, IA

Average sunshine days - Julien, IA

The months with the most sunshine days are November and December (17.5 days).
The month with the least sunshine days is June (10.3 days).

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Average visibility
Julien, IA

Average visibility - Julien, IA

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

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Julien, Iowa, USA

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