Climate and monthly weather forecast
Mount Morris, IL

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Weather in January

January, the same as December, in Mount Morris, Illinois, is a freezing cold winter month, with an average temperature varying between 26.1°F (-3.3°C) and 13.8°F (-10.1°C). In Mount Morris, January records the lowest average temperatures, peaking at 26.1°F (-3.3°C) and reaching a low of 13.8°F (-10.1°C). Weather in January »

Weather in February

February, the last month of the winter in Mount Morris, is another freezing cold month, with temperature in the range of an average high of 30.4°F (-0.9°C) and an average low of 17.4°F (-8.1°C). Mount Morris signifies an average high-temperature of a still subzero cold 30.4°F (-0.9°C) in February, closely mirroring the 26.1°F (-3.3°C) of January. Weather in February »

Weather in March

March, the first month of the spring in Mount Morris, is a chilly month, with an average temperature ranging between max 44.2°F (6.8°C) and min 29.7°F (-1.3°C). A rise in the average high-temperature is observed during March, moving from a subzero cold 30.4°F (-0.9°C) in February to a frosty 44.2°F (6.8°C). Weather in March »

Weather in April

April is a moderate spring month in Mount Morris, Illinois, with an average temperature varying between 40.3°F (4.6°C) and 56.5°F (13.6°C). April's arrival coincides with a temperature rise, moving from March's frosty 44.2°F (6.8°C) to a mild 56.5°F (13.6°C). Weather in April »

Weather in May

May, the last month of the spring in Mount Morris, is a pleasant month, with an average temperature fluctuating between 68.7°F (20.4°C) and 51.4°F (10.8°C). May's arrival brings a temperature shift, moving from a mild 56.5°F (13.6°C) in April to a pleasant 68.7°F (20.4°C). Weather in May »

Weather in June

June, the first month of the summer in Mount Morris, is a moderately hot month, with an average temperature fluctuating between 60.3°F (15.7°C) and 77.4°F (25.2°C). Observing a minor shift, the average high-temperature during June adjusts from May's agreeable 68.7°F (20.4°C) to a moderately hot 77.4°F (25.2°C). Weather in June »

Weather in July

July, the same as June, is another warm summer month in Mount Morris, Illinois, with an average temperature ranging between max 79.9°F (26.6°C) and min 63.1°F (17.3°C). July is the warmest month of the year, registering average temperatures as high as 79.9°F (26.6°C) and as low as 63.1°F (17.3°C). Weather in July »

Weather in August

August, the last month of the summer in Mount Morris, is also a moderately hot month, with an average temperature ranging between min 61°F (16.1°C) and max 78.4°F (25.8°C). August experiences an average high-temperature of a still moderately hot 78.4°F (25.8°C), barely different from July's 79.9°F (26.6°C). Weather in August »

Weather in September

September, the first month of the autumn in Mount Morris, is also an agreeable month, with temperature in the range of an average low of 54.5°F (12.5°C) and an average high of 73°F (22.8°C). The shift from August to September includes a minor decrease in the average high-temperature, lightly dropping from a moderately hot 78.4°F (25.8°C) to a pleasant 73°F (22.8°C). Weather in September »

Weather in October

October, like September, is a moderate autumn month in Mount Morris, Illinois, with an average temperature varying between 43.7°F (6.5°C) and 59.7°F (15.4°C). In October, the average high-temperature goes from a pleasant 73°F (22.8°C) in September to a refreshing 59.7°F (15.4°C). Weather in October »

Weather in November

The last month of the autumn, November, is another chilly month in Mount Morris, Illinois, with an average temperature varying between 44.8°F (7.1°C) and 31.6°F (-0.2°C). The changeover to November signals a significant decrease in the average high-temperature, dropping from a refreshing 59.7°F (15.4°C) in October to a chilly 44.8°F (7.1°C). Weather in November »

Weather in December

December, the first month of the winter in Mount Morris, is also an icy month, with an average temperature varying between 32.4°F (0.2°C) and 22.3°F (-5.4°C). December implies a gentle temperature shift, with average high-temperatures reducing from November's chilly 44.8°F (7.1°C) to a cold 32.4°F (0.2°C). Weather in December »
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Frequently asked questions

What time of the year is the coldest in Mount Morris?

Mount Morris's January weather, with an average high temperature of 26.1°F (-3.3°C) and an average low temperature of 13.8°F (-10.1°C), tends to be the coldest of the year.

What is the most humid month in Mount Morris?

The most humid month in Mount Morris is January, with an average relative humidity of 86%.

How much does it rain in Mount Morris?

In Mount Morris, Illinois, during the entire year, the rain falls for 154.8 days and collects up to 32.36" (822mm) of precipitation.

When does it snow in Mount Morris?

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

What is the snowiest month in Mount Morris?

The month with the most snowfall in Mount Morris is January, when snow falls for 12.1 days and typically aggregates up to 5.79" (147mm) of snow.

How many days does it snow in Mount Morris?

Throughout the year, there are 45.5 snowfall days, and 19.25" (489mm) of snow is accumulated.

What is the month with the least sunshine in Mount Morris?

January has the least sunshine of the year in Mount Morris, Illinois, with an average of 3.6h of sunshine.

What are the months with the lowest UV index in Mount Morris?

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

What is the driest month in Mount Morris?

February is the month with the least rainfall in Mount Morris. Rain falls for 5.3 days and accumulates 1.57" (40mm) of precipitation.

When is Daylight Saving Time (DST) in Mount Morris?

On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts in Mount Morris, 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 least humid month in Mount Morris?

April and October, with an average relative humidity of 75%, are the least humid months.

What is the rainiest month in Mount Morris?

May is the month with the most rainfall in Mount Morris. Rain falls for 19.1 days and accumulates 4.53" (115mm) of precipitation.

What is the month with the highest UV index in Mount Morris?

May through August, with an average maximum UV index of 5, are months with the highest UV index in Mount Morris, Illinois.

When it does not snow in Mount Morris?

June through September are months without snowfall.

When are the longest days in Mount Morris?

With an average of 15h and 12min of daylight, June has the longest days of the year in Mount Morris.

What part of the year is the hottest in Mount Morris?

Mount Morris registers the average highest temperatures during July, with peaks of 79.9°F (26.6°C) and lows of 63.1°F (17.3°C).

What month has the most sunshine in Mount Morris?

July has the most sunshine of the year in Mount Morris, with an average of 9.5h of sunshine.

What is the month with the shortest days in Mount Morris?

December has the shortest days of the year in Mount Morris, with an average of 9h and 12min of daylight.

Average temperature
Mount Morris, IL

Average temperature - Mount Morris, IL

The warmest month (with the highest average high temperature) is July (79.9°F).
The month with the lowest average high temperature is January (26.1°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 (13.8°F).

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Average pressure
Mount Morris, IL

Average pressure - Mount Morris, IL

The month with the highest atmospheric pressure is January (30.12"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).

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Average wind speed
Mount Morris, IL

Average wind speed - Mount Morris, IL

The windiest month (with the highest average wind speed) is April (10.3mph).
The calmest month (with the lowest average wind speed) is August (6.4mph).

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Average humidity
Mount Morris, IL

Average humidity - Mount Morris, IL

The month with the highest relative humidity is January (86%).
The months with the lowest relative humidity are April and October (75%).

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Average rainfall
Mount Morris, IL

Average rainfall - Mount Morris, IL

The wettest month (with the highest rainfall) is May (4.53").
The driest month (with the least rainfall) is February (1.57").

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Average rainfall days
Mount Morris, IL

Average rainfall days - Mount Morris, IL

The month with the highest number of rainy days is May (19.1 days).
The month with the least rainy days is February (5.3 days).

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Average snowfall
Mount Morris, IL

Average snowfall - Mount Morris, IL

The month with the highest snowfall is January (5.79").
The months with the least snowfall are June, July, August and September (0").

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Average snowfall days
Mount Morris, IL

Average snowfall days - Mount Morris, IL

The month with the highest number of snowfall days is January (12.1 days).
The months with the least snowfall days are June, July, August and September (0 days).

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Average daylight / Average sunshine
Mount Morris, IL

Average daylight / Average sunshine - Mount Morris, IL

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 12min).

The month with the most sunshine is July (Average sunshine: 9h and 30min).
The month with the least sunshine is January (Average sunshine: 3h and 36min).

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Average sunshine days
Mount Morris, IL

Average sunshine days - Mount Morris, IL

The month with the most sunshine days is November (17 days).
The month with the least sunshine days is June (9.2 days).

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Average UV index
Mount Morris, IL

Average UV index - Mount Morris, IL

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 and December (UV index 1).

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Average visibility
Mount Morris, IL

Average visibility - Mount Morris, IL

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

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Mount Morris, Illinois, USA

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