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Contents
- Weather in January
- Weather in February
- Weather in March
- Weather in April
- Weather in May
- Weather in June
- Weather in July
- Weather in August
- Weather in September
- Weather in October
- Weather in November
- Weather in December
- Frequently asked questions
- Average temperature
- Average pressure
- Average wind speed
- Average humidity
- Average rainfall
- Average rainfall days
- Average snowfall
- Average snowfall days
- Average daylight
- Average sunshine
- Average sunshine days
- Average UV index
- Average cloud cover
- Average visibility
Weather in January
January, the same as December, in Berkeley, Illinois, is a freezing cold winter month, with an average temperature fluctuating between 18°F (-7.8°C) and 28.8°F (-1.8°C). During the coldest month, January, temperatures average a high of 28.8°F (-1.8°C) and a low of 18°F (-7.8°C). Weather in January »
Weather in February
February, the last month of the winter in Berkeley, is an icy month, with an average temperature fluctuating between 20.7°F (-6.3°C) and 32.4°F (0.2°C). The onset of February marks an average high-temperature of a wintry 32.4°F (0.2°C), hardly differing from January's 28.8°F (-1.8°C). Weather in February »
Weather in March
March, the first month of the spring in Berkeley, is a frosty month, with an average temperature fluctuating between 31.5°F (-0.3°C) and 44.2°F (6.8°C). In March, the average high-temperature increases from a cold 32.4°F (0.2°C) in February to a chilly 44.2°F (6.8°C). Weather in March »
Weather in April
April in Berkeley, Illinois, is a fresh spring month, with an average temperature varying between 40.6°F (4.8°C) and 55.2°F (12.9°C). April brings a temperature change, with average high-temperatures moving from March's chilly 44.2°F (6.8°C) to a cool 55.2°F (12.9°C). Weather in April »
Weather in May
May, the last month of the spring in Berkeley, is a refreshing month, with temperature in the range of an average low of 51.6°F (10.9°C) and an average high of 67.3°F (19.6°C). The start of May brings a shift in the average high-temperature, increasing from April's cool 55.2°F (12.9°C) to an enjoyable 67.3°F (19.6°C). Weather in May »
Weather in June
The first month of the summer, June, is a warm month in Berkeley, Illinois, with an average temperature ranging between max 76.8°F (24.9°C) and min 61.2°F (16.2°C). June indicates a change in the average high-temperature, moving up from a refreshing 67.3°F (19.6°C) in May to a moderately hot 76.8°F (24.9°C). Weather in June »
Weather in July
July, the same as June, is another warm summer month in Berkeley, Illinois, with temperature in the range of an average low of 66.6°F (19.2°C) and an average high of 81.9°F (27.7°C). July, recording an average high temperature of 81.9°F (27.7°C) and a low temperature of 66.6°F (19.2°C), is Berkeley's warmest month. The average heat index in July is computed to be a hot 87.8°F (31°C). Weather in July »
Weather in August
August, the last month of the summer in Berkeley, is also a moderately hot month, with temperature in the range of an average high of 80.2°F (26.8°C) and an average low of 65.7°F (18.7°C). Berkeley in August witnesses an average high-temperature of a still moderately hot 80.2°F (26.8°C), indicating a slight variation from July's 81.9°F (27.7°C). Weather in August »
Weather in September
The first month of the autumn, September, is also a moderately hot month in Berkeley, Illinois, with temperature in the range of an average low of 58.6°F (14.8°C) and an average high of 73.4°F (23°C). The advent of September brings a subtle shift in temperature, with the average high moving from a warm 80.2°F (26.8°C) in August to a still moderately hot 73.4°F (23°C). Weather in September »
Weather in October
October, the same as September, in Berkeley, Illinois, is a moderate autumn month, with an average temperature varying between 46.6°F (8.1°C) and 60.4°F (15.8°C). Berkeley's October weather shows a moderate shift in high-temperatures, falling from September's warm 73.4°F (23°C) to a mild 60.4°F (15.8°C). Weather in October »
Weather in November
November, the last month of the autumn in Berkeley, is also a frosty month, with an average temperature fluctuating between 33.6°F (0.9°C) and 45.9°F (7.7°C). Berkeley sees a considerable decrease in average high-temperatures during November, falling from a mild 60.4°F (15.8°C) in October to a frosty 45.9°F (7.7°C). Weather in November »
Weather in December
December, the first month of the winter in Berkeley, is still a cold month, with temperature in the range of an average low of 25.2°F (-3.8°C) and an average high of 34.7°F (1.5°C). The arrival of December corresponds with a reduction in the average high-temperature, down from November's frosty 45.9°F (7.7°C) to a wintry 34.7°F (1.5°C). Weather in December »
Updated: Feb 12, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What part of the year is the coldest in Berkeley?
With its average high temperature of 28.8°F (-1.8°C) and a low of 18°F (-7.8°C), January is regarded as the coldest month in Berkeley, Illinois.
What are the most humid months in Berkeley?
January and February, with an average relative humidity of 82%, are most humid months in Berkeley, Illinois.
How much does it rain in Berkeley?
Throughout the year, there are 149.4 rainfall days, and 25.08" (637mm) of precipitation is accumulated.
When does it snow in Berkeley?
January through May, October through December are months with snowfall.
How much does it snow in Berkeley?
In Berkeley, Illinois, during the entire year, snow falls for 45.8 days and aggregates up to 14.25" (362mm) of snow.
What is the month with the least sunshine in Berkeley?
January has the least sunshine of the year in Berkeley, Illinois, with an average of 3.7h of sunshine.
What is the month with the lowest UV index in Berkeley?
January and December, with an average maximum UV index of 1, are months with the lowest UV index.
When does it snow the most in Berkeley?
The month with the most snowfall in Berkeley, Illinois, is February, when snow falls for 10.9 days and typically aggregates up to 3.86" (98mm) of snow.
When is Daylight Saving Time (DST) in Berkeley?
On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts in Berkeley, 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 wettest month in Berkeley?
May is the month with the most rainfall in Berkeley. Rain falls for 17.3 days and accumulates 3.11" (79mm) of precipitation.
When it does not snow in Berkeley?
June through September are months without snowfall.
When are the longest days in Berkeley?
June has the longest days of the year, with an average of 15h and 12min of daylight.
What are the months with the highest UV index in Berkeley?
The months with the highest UV index in Berkeley are June through August, with an average maximum UV index of 6.
What time of the year is the hottest in Berkeley?
Berkeley's warmest weather arrives in July, when temperatures average a high of 81.9°F (27.7°C) and a low of 66.6°F (19.2°C).
What is the month with the most sunshine in Berkeley?
The months with the most sunshine in Berkeley are July and August, with an average of 10.1h of sunshine.
What is the least humid month in Berkeley?
October is the least humid month, with an average relative humidity of 72%.
What is the driest month in Berkeley?
The month with the least rainfall is December, when the rain falls for 7.9 days and typically collects 1.14" (29mm) of precipitation.
What is the month with the shortest days in Berkeley?
With an average of 9h and 12min of daylight, December has the shortest days of the year.
Average temperature
Berkeley, IL
The warmest month (with the highest average high temperature) is July (81.9°F).
The month with the lowest average high temperature is January (28.8°F).
The month with the highest average low temperature is July (66.6°F).
The coldest month (with the lowest average low temperature) is January (18°F).
Average pressure
Berkeley, IL
- Average pressure in January:
30.11"Hg - Average pressure in February:
30.1"Hg - Average pressure in March:
30.09"Hg - Average pressure in April:
29.95"Hg - Average pressure in May:
29.96"Hg - Average pressure in June:
29.92"Hg
- Average pressure in July:
29.97"Hg - Average pressure in August:
29.98"Hg - Average pressure in September:
30.03"Hg - Average pressure in October:
30.01"Hg - Average pressure in November:
30.09"Hg - Average pressure in December:
30.09"Hg
The month with the highest atmospheric pressure is January (30.11"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).
Average wind speed
Berkeley, IL
- Average wind speed in January:
10.2mph - Average wind speed in February:
9.9mph - Average wind speed in March:
9.4mph - Average wind speed in April:
9.7mph - Average wind speed in May:
8.3mph - Average wind speed in June:
7.3mph
- Average wind speed in July:
6.5mph - Average wind speed in August:
6.3mph - Average wind speed in September:
7.5mph - Average wind speed in October:
9.1mph - Average wind speed in November:
9.7mph - Average wind speed in December:
9.4mph
The windiest month (with the highest average wind speed) is January (10.2mph).
The calmest month (with the lowest average wind speed) is August (6.3mph).
Average humidity
Berkeley, IL
The months with the highest relative humidity are January and February (82%).
The month with the lowest relative humidity is October (72%).
Average rainfall
Berkeley, IL
- Average rainfall in January:
1.34" - Average rainfall in February:
1.42" - Average rainfall in March:
1.46" - Average rainfall in April:
2.76" - Average rainfall in May:
3.11" - Average rainfall in June:
2.83"
- Average rainfall in July:
2.87" - Average rainfall in August:
2.83" - Average rainfall in September:
1.89" - Average rainfall in October:
2.17" - Average rainfall in November:
1.26" - Average rainfall in December:
1.14"
The wettest month (with the highest rainfall) is May (3.11").
The driest month (with the least rainfall) is December (1.14").
Average rainfall days
Berkeley, IL
- Average rainfall days in January:
6.3 days - Average rainfall days in February:
5.1 days - Average rainfall days in March:
11.3 days - Average rainfall days in April:
15.8 days - Average rainfall days in May:
17.3 days - Average rainfall days in June:
16.2 days
- Average rainfall days in July:
17.3 days - Average rainfall days in August:
16.6 days - Average rainfall days in September:
13.5 days - Average rainfall days in October:
13 days - Average rainfall days in November:
9.1 days - Average rainfall days in December:
7.9 days
The months with the highest number of rainy days are May and July (17.3 days).
The month with the least rainy days is February (5.1 days).
Average snowfall
Berkeley, IL
- Average snowfall in January:
3.62" - Average snowfall in February:
3.86" - Average snowfall in March:
1.18" - Average snowfall in April:
2.01" - Average snowfall in May:
0.04" - Average snowfall in June:
0"
The month with the highest snowfall is February (3.86").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days
Berkeley, IL
- Average snowfall days in January:
12.4 days - Average snowfall days in February:
10.9 days - Average snowfall days in March:
6.3 days - Average snowfall days in April:
2.3 days - Average snowfall days in May:
0.1 days - Average snowfall days in June:
0 days
- Average snowfall days in July:
0 days - Average snowfall days in August:
0 days - Average snowfall days in September:
0 days - Average snowfall days in October:
0.4 days - Average snowfall days in November:
3.5 days - Average snowfall days in December:
9.9 days
The month with the highest number of snowfall days is January (12.4 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight / Average sunshine
Berkeley, IL
- Average daylight in January:
9h and 3min - Average daylight in February:
10h and 4min - Average daylight in March:
12h and 0min - Average daylight in April:
13h and 2min - Average daylight in May:
14h and 4min - Average daylight in June:
15h and 1min
- Average daylight in July:
14h and 5min - Average daylight in August:
13h and 5min - Average daylight in September:
12h and 3min - Average daylight in October:
11h and 1min - Average daylight in November:
9h and 5min - Average daylight in December:
9h and 1min
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).
- Average sunshine in January:
3h and 4min - Average sunshine in February:
3h and 5min - Average sunshine in March:
6h and 0min - Average sunshine in April:
7h and 4min - Average sunshine in May:
8h and 4min - Average sunshine in June:
9h and 4min
- Average sunshine in July:
10h and 1min - Average sunshine in August:
10h and 1min - Average sunshine in September:
8h and 5min - Average sunshine in October:
5h and 4min - Average sunshine in November:
5h and 0min - Average sunshine in December:
4h and 1min
The months with the most sunshine are July and August (Average sunshine: 10h and 6min).
The month with the least sunshine is January (Average sunshine: 3h and 42min).
Average sunshine days
Berkeley, IL
- Average sunshine days in January:
14.2 days - Average sunshine days in February:
11.5 days - Average sunshine days in March:
13.8 days - Average sunshine days in April:
11 days - Average sunshine days in May:
10.8 days - Average sunshine days in June:
11.1 days
- Average sunshine days in July:
9.5 days - Average sunshine days in August:
11.3 days - Average sunshine days in September:
13 days - Average sunshine days in October:
14.2 days - Average sunshine days in November:
16.8 days - Average sunshine days in December:
15.3 days
The month with the most sunshine days is November (16.8 days).
The month with the least sunshine days is July (9.5 days).
Average UV index
Berkeley, 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 and December (UV index 1).
Average cloud cover
Berkeley, IL
The month with the most cloud cover is January (Cloud cover 61).
The month with the least cloud cover is August (Cloud cover 30).
Average visibility
Berkeley, IL
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).
Berkeley, Illinois, USA
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