Climate and monthly weather forecast
Palmer, IL

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Weather in January

January, the same as December, is another cold winter month in Palmer, Illinois, with an average temperature ranging between min 21.6°F (-5.8°C) and max 34°F (1.1°C). January tends to be the coldest month, with temperatures averaging a daily high 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 also a wintry month, with an average temperature fluctuating between 25.7°F (-3.5°C) and 39.2°F (4°C). As January turns into February, the average high-temperatures rest at a still icy 39.2°F (4°C), showing a minor variation from the prior month. Weather in February »

Weather in March

The first month of the spring, March, is a cool month in Palmer, Illinois, with temperature in the range of an average high of 51.4°F (10.8°C) and an average low of 36.1°F (2.3°C). The arrival of March brings a change in Palmer's weather, with average high-temperatures moving from February's icy 39.2°F (4°C) to a fresh 51.4°F (10.8°C). Weather in March »

Weather in April

April in Palmer, Illinois, is an enjoyable spring month, with an average temperature varying between 63.1°F (17.3°C) and 46.2°F (7.9°C). The onset of April brings a rise in the average high-temperature, elevating from a fresh 51.4°F (10.8°C) in March 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 an average temperature fluctuating between 56.8°F (13.8°C) and 72.9°F (22.7°C). The beginning of May marks a shift in the average high-temperature, moving from April's comfortable 63.1°F (17.3°C) to an agreeable 72.9°F (22.7°C). Weather in May »

Weather in June

The first month of the summer, June, is a warm month in Palmer, Illinois, with an average temperature varying between 64.8°F (18.2°C) and 81.1°F (27.3°C). As May transitions into June, a subtle temperature shift is observed, with average highs adjusting from a pleasant 72.9°F (22.7°C) to a warm 81.1°F (27.3°C). Weather in June »

Weather in July

July, the same as June, is another warm summer month in Palmer, Illinois, with an average temperature ranging between min 66.4°F (19.1°C) and max 82.9°F (28.3°C). During the warmest month, July, temperatures average a high of 82.9°F (28.3°C) and a low of 66.4°F (19.1°C). The heat index value during July is appraised at a tropical 91.4°F (33°C). Weather in July »

Weather in August

August, the last month of the summer in Palmer, is another warm month, with an average temperature varying between 82°F (27.8°C) and 64.8°F (18.2°C). August denotes a minimal variation in the average high-temperature to a still warm 82°F (27.8°C) 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 fluctuating between 58.8°F (14.9°C) and 77.4°F (25.2°C). In September, the average high-temperature registers at a still moderately hot 77.4°F (25.2°C), nearly identical to August's 82°F (27.8°C). Weather in September »

Weather in October

October, like September, in Palmer, Illinois, is another refreshing autumn month, with an average temperature varying between 48°F (8.9°C) and 64.2°F (17.9°C). As September transitions into October, Palmer sees a drop in the average high-temperature, transitioning from a warm 77.4°F (25.2°C) 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 ranging between max 50.4°F (10.2°C) and min 36.3°F (2.4°C). Palmer's weather changes with the onset of November, slightly falling from a comfortable 64.2°F (17.9°C) in October 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 still a cold month, with an average temperature fluctuating between 39.4°F (4.1°C) and 28.2°F (-2.1°C). December's arrival coincides with a drop in the average high-temperature, decreasing from November's cool 50.4°F (10.2°C) to a cold 39.4°F (4.1°C). Weather in December »
Updated: Aug 31, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What time of the year is the coldest?

The coldest period in Palmer is January, when temperatures fluctuate between an average high of 34°F (1.1°C) and a low of 21.6°F (-5.8°C).

How much does it rain?

Throughout the year, there are 147.7 rainfall days, and 29.65" (753mm) of precipitation is accumulated.

When does it snow in Palmer?

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

What is the snowiest month?

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

How much does it snow?

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?

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

When is the lowest UV index?

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

What is the driest month?

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)?

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?

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

When it does not snow?

May through October are months without snowfall.

When are the longest days?

June has the longest days of the year, with an average of 14h and 54min of daylight.

What month has the most sunshine?

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

What is the month with the highest UV index?

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

What time of the year is the hottest?

July is the month when Palmer's temperatures reach their peak, with averages of 82.9°F (28.3°C) and lows of 66.4°F (19.1°C).

What is the most humid month?

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

What is the least humid month?

The least humid month is October, with an average relative humidity of 70%.

What is the month with the shortest days in Palmer?

The month with the shortest days in Palmer is December, 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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