Climate and monthly weather forecast
Palmer, IL

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Weather in January

January, like December, in Palmer, Illinois, is an icy winter month, with temperature in the range of an average low of 21.6°F (-5.8°C) and an average high of 34°F (1.1°C). Palmer experiences its lowest temperatures in January, with an average peak of 34°F (1.1°C) and a low of 21.6°F (-5.8°C). Weather in January »

Weather in February

February, the last month of the winter in Palmer, is another cold month, with temperature in the range of an average high of 39.2°F (4°C) and an average low of 25.7°F (-3.5°C). As January transitions into February, Palmer records an average high-temperature of a still wintry 39.2°F (4°C), showing a gentle shift from the preceding month. Weather in February »

Weather in March

The first month of the spring, March, is a fresh month in Palmer, Illinois, with an average temperature ranging between min 36.1°F (2.3°C) and max 51.4°F (10.8°C). The beginning of March marks a shift in the average high-temperature, moving from February's wintry 39.2°F (4°C) to a cool 51.4°F (10.8°C). Weather in March »

Weather in April

April in Palmer, Illinois, is a refreshing spring month, with an average temperature varying between 46.2°F (7.9°C) and 63.1°F (17.3°C). As March transitions into April, Palmer sees a rise in the average high-temperature, moving from a cool 51.4°F (10.8°C) to an enjoyable 63.1°F (17.3°C). Weather in April »

Weather in May

The last month of the spring, May, is a pleasant month in Palmer, Illinois, with temperature in the range of an average low of 56.8°F (13.8°C) and an average high of 72.9°F (22.7°C). May marks a rise in the average high-temperature, moving from April's enjoyable 63.1°F (17.3°C) to an agreeable 72.9°F (22.7°C). Weather in May »

Weather in June

June, the first month of the summer in Palmer, is a warm month, with an average temperature ranging between min 64.8°F (18.2°C) and max 81.1°F (27.3°C). The shift into June is accompanied by a modest temperature increase, with the average high-temperature edging up from a pleasant 72.9°F (22.7°C) in May to a moderately hot 81.1°F (27.3°C). Weather in June »

Weather in July

July, the same as June, is a moderately hot summer month in Palmer, Illinois, with temperature in the range of an average high of 82.9°F (28.3°C) and an average low of 66.4°F (19.1°C). July, recording an average high temperature of 82.9°F (28.3°C) and a low temperature of 66.4°F (19.1°C), is Palmer's warmest month. In July, the average heat index is computed to be a tropical 91.4°F (33°C). Weather in July »

Weather in August

August, the last month of the summer in Palmer, is also a moderately hot month, with an average temperature fluctuating between 82°F (27.8°C) and 64.8°F (18.2°C). As Palmer welcomes August, the average high-temperature stabilizes at a still warm 82°F (27.8°C), showing little deviation from July's 82.9°F (28.3°C). Weather in August »

Weather in September

The first month of the autumn, September, is still a warm month in Palmer, Illinois, with an average temperature ranging between max 77.4°F (25.2°C) and min 58.8°F (14.9°C). Palmer, Illinois, starts September with an average high-temperature of a still warm 77.4°F (25.2°C), a minor shift from August's 82°F (27.8°C). Weather in September »

Weather in October

October, like September, in Palmer, Illinois, is another enjoyable autumn month, with an average temperature ranging between min 48°F (8.9°C) and max 64.2°F (17.9°C). Transition into October marks a drop in the average high-temperature, moving from a moderately hot 77.4°F (25.2°C) in September to a comfortable 64.2°F (17.9°C). Weather in October »

Weather in November

The last month of the autumn, November, is also a fresh month in Palmer, Illinois, with an average temperature varying between 36.3°F (2.4°C) and 50.4°F (10.2°C). Palmer in November undergoes a mild reduction in the average high-temperature, shifting from October's comfortable 64.2°F (17.9°C) to a fresh 50.4°F (10.2°C). Weather in November »

Weather in December

December, the first month of the winter in Palmer, is also a wintry month, with an average temperature varying between 39.4°F (4.1°C) and 28.2°F (-2.1°C). With the onset of December, Palmer's average high-temperature adjusts, receding from November's fresh 50.4°F (10.2°C) to a wintry 39.4°F (4.1°C). Weather in December »
Updated: Feb 12, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the coldest time of year in Palmer?

In Palmer, January records the average lowest temperatures, peaking at 34°F (1.1°C) and reaching a low of 21.6°F (-5.8°C).

How much does it rain in Palmer?

In Palmer, Illinois, during the entire year, the rain falls for 147.7 days and collects up to 29.65" (753mm) of precipitation.

When does it snow in Palmer?

January through April, November and December are months with snowfall in Palmer, Illinois.

When does it snow the most in Palmer?

January is the month with the most snowfall. Snow falls for 8.8 days and accumulates 2.8" (71mm) of snow.

How many days does it snow in Palmer?

Throughout the year, there are 26.3 snowfall days, and 8.94" (227mm) of snow is accumulated.

What is the month with the least sunshine in Palmer?

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

What are the months with the lowest UV index in Palmer?

The months with the lowest UV index in Palmer, Illinois, are January, February, November and December, with an average maximum UV index of 2.

What is the driest month in Palmer?

February and December are months with the least rain when the rain falls for 7.1 days and typically aggregates up to 1.65" (42mm) of rain.

When is Daylight Saving Time (DST) in Palmer?

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 Palmer?

April is the month with the most rainfall. Rain falls for 15.3 days and accumulates 3.58" (91mm) of precipitation.

When it does not snow in Palmer?

May through October are months without snowfall in Palmer.

When are the longest days in Palmer?

The month with the longest days in Palmer, Illinois, is June, with an average of 14h and 54min of daylight.

What month has the most sunshine in Palmer?

The month with the most sunshine in Palmer, Illinois, is June, with an average of 10.3h of sunshine.

What are the months with the highest UV index in Palmer?

June through August, with an average maximum UV index of 6, are months with the highest UV index in Palmer.

What is the hottest time of year in Palmer?

July stands out as Palmer's warmest month, with an average high-temperature of 82.9°F (28.3°C) and a low-temperature of 66.4°F (19.1°C).

What is the most humid month in Palmer?

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

What is the least humid month in Palmer?

With an average relative humidity of 70%, October is the least humid month in Palmer, Illinois.

What is the month with the shortest days in Palmer?

December has the shortest days of the year in Palmer, Illinois, with an average of 9h and 24min of daylight.

Average temperature
Palmer, IL

Average temperature - Palmer, IL

The warmest month (with the highest average high temperature) is July (82.9°F).
The month with the lowest average high temperature is January (34°F).

The month with the highest average low temperature is July (66.4°F).
The coldest month (with the lowest average low temperature) is January (21.6°F).

Average pressure
Palmer, IL

Average pressure - Palmer, IL

The month with the highest atmospheric pressure is January (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).

Average wind speed
Palmer, IL

Average wind speed - Palmer, IL

The windiest month (with the highest average wind speed) is January (10.6mph).
The calmest months (with the lowest average wind speed) are July and August (6.2mph).

Average rainfall
Palmer, IL

Average rainfall - Palmer, IL

The wettest month (with the highest rainfall) is April (3.58").
The driest months (with the least rainfall) are February and December (1.65").

Average rainfall days
Palmer, IL

Average rainfall days - Palmer, IL

The month with the highest number of rainy days is May (17.3 days).
The month with the least rainy days is February (7.1 days).

Average snowfall
Palmer, IL

Average snowfall - Palmer, IL

The month with the highest snowfall is January (2.8").
The months with the least snowfall are May, June, July, August, September and October (0").

Average snowfall days
Palmer, IL

Average snowfall days - Palmer, IL

The month with the highest number of snowfall days is January (8.8 days).
The months with the least snowfall days are May, June, July, August and September (0 days).

Average daylight / Average sunshine
Palmer, IL

Average daylight / Average sunshine - Palmer, IL

The month with the longest days is June (Average daylight: 14h and 54min).
The month with the shortest days is December (Average daylight: 9h and 24min).

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

Average sunshine days
Palmer, IL

Average sunshine days - Palmer, IL

The month with the most sunshine days is November (18.2 days).
The month with the least sunshine days is June (11 days).

Average UV index
Palmer, IL

Average UV index - Palmer, IL

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

Average visibility
Palmer, IL

Average visibility - Palmer, IL

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

Palmer, Illinois, USA

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