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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, like December, is another subzero cold winter month in Cornell, Illinois, with an average temperature fluctuating between 18.5°F (-7.5°C) and 30.2°F (-1°C). In Cornell, the lowest temperatures are generally noted in January, averaging a high of 30.2°F (-1°C) and a low of 18.5°F (-7.5°C). Weather in January »
Weather in February
February, the last month of the winter in Cornell, is a cold month, with an average temperature fluctuating between 34.9°F (1.6°C) and 21.7°F (-5.7°C). February's arrival shows an average high-temperature of a wintry 34.9°F (1.6°C), hardly different from the previous month. Weather in February »
Weather in March
The first month of the spring, March, is a chilly month in Cornell, Illinois, with temperature in the range of an average low of 33.4°F (0.8°C) and an average high of 47.5°F (8.6°C). The beginning of March signals a rise in the average high-temperature, moving from a cold 34.9°F (1.6°C) in February to a chilly 47.5°F (8.6°C). Weather in March »
Weather in April
April is a moderate spring month in Cornell, Illinois, with an average temperature ranging between min 43.7°F (6.5°C) and max 59.7°F (15.4°C). In Cornell, the average high-temperature in April rises, from a chilly 47.5°F (8.6°C) in March, to a mild 59.7°F (15.4°C). Weather in April »
Weather in May
May, the last month of the spring in Cornell, is a pleasant month, with temperature in the range of an average high of 71.2°F (21.8°C) and an average low of 54.7°F (12.6°C). May's arrival signals an increase in average high-temperatures, moving from April's moderate 59.7°F (15.4°C) to a pleasant 71.2°F (21.8°C). Weather in May »
Weather in June
The first month of the summer, June, is a moderately hot month in Cornell, Illinois, with an average temperature varying between 79.3°F (26.3°C) and 62.4°F (16.9°C). June's arrival coincides with a marginal rise in the average high-temperature, moving from May's pleasant 71.2°F (21.8°C) to a warm 79.3°F (26.3°C). Weather in June »
Weather in July
July, the same as June, is a moderately hot summer month in Cornell, Illinois, with an average temperature fluctuating between 81°F (27.2°C) and 64.6°F (18.1°C). In Cornell, the peak temperatures are generally noted in July, averaging a high of 81°F (27.2°C) and a low of 64.6°F (18.1°C). For July, the heat index is computed to be a hot 87.8°F (31°C). Weather in July »
Weather in August
The last month of the summer, August, is also a moderately hot month in Cornell, Illinois, with an average temperature ranging between max 80.1°F (26.7°C) and min 62.4°F (16.9°C). The arrival of August brings an average high-temperature of a still moderately hot 80.1°F (26.7°C), closely following the temperature pattern of July. Weather in August »
Weather in September
September, the first month of the autumn in Cornell, is still a warm month, with an average temperature fluctuating between 57°F (13.9°C) and 75.6°F (24.2°C). The start of September sees the average high-temperature at a still moderately hot 75.6°F (24.2°C), showing little difference from August's 80.1°F (26.7°C). Weather in September »
Weather in October
October, like September, in Cornell, Illinois, is another refreshing autumn month, with temperature in the range of an average high of 62.2°F (16.8°C) and an average low of 46.6°F (8.1°C). With October's arrival, Cornell's weather changes as the average high-temperature falls from a warm 75.6°F (24.2°C) in September to a comfortable 62.2°F (16.8°C). Weather in October »
Weather in November
November, the last month of the autumn in Cornell, is another chilly month, with an average temperature ranging between min 34.9°F (1.6°C) and max 47.5°F (8.6°C). The beginning of November signals a clear reduction in the average high-temperature, falling from an enjoyable 62.2°F (16.8°C) in October to a frosty 47.5°F (8.6°C). Weather in November »
Weather in December
The first month of the winter, December, is also an icy month in Cornell, Illinois, with an average temperature ranging between min 25.9°F (-3.4°C) and max 36.5°F (2.5°C). As December arrives, Cornell's weather displays a decrease in high-temperatures, transitioning from November's frosty 47.5°F (8.6°C) to a cold 36.5°F (2.5°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 is the coldest month in Cornell?
The month of January sees the average lowest temperatures in Cornell, Illinois, reaching 30.2°F (-1°C) at the peak and 18.5°F (-7.5°C) at the low.
What is the driest month in Cornell?
January and February are months with the least rain in Cornell, Illinois, when the rain falls for 4.3 days and typically aggregates up to 0.71" (18mm) of rain.
How much does it rain in Cornell?
In Cornell, during the entire year, the rain falls for 125.3 days and collects up to 15.71" (399mm) of precipitation.
When does it snow in Cornell?
Months with snowfall in Cornell are January through April, October through December.
When does it snow the most in Cornell?
The month with the most snowfall is January, when snow falls for 10.2 days and typically aggregates up to 1.73" (44mm) of snow.
How many days does it snow in Cornell?
In Cornell, Illinois, during the entire year, snow falls for 30.6 days and aggregates up to 6.93" (176mm) of snow.
What is the month with the least sunshine in Cornell?
January has the least sunshine of the year in Cornell, with an average of 3.8h of sunshine.
When is Daylight Saving Time (DST) in Cornell?
On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts in Cornell, Illinois, 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 Cornell?
The month with the most rainfall is May, when the rain falls for 16.8 days and typically aggregates up to 2.44" (62mm) of precipitation.
When it does not snow in Cornell?
In Cornell, snow does not fall in May through September.
When are the longest days in Cornell?
June has the longest days of the year, with an average of 15h and 6min of daylight.
What are the months with the most sunshine in Cornell?
The months with the most sunshine in Cornell, Illinois, are June and August, with an average of 9.8h of sunshine.
What are the months with the highest UV index in Cornell?
June and July, with an average maximum UV index of 6, are months with the highest UV index.
What is the hottest time of year in Cornell?
July is the month that records the highest temperatures, with averages ranging from a high of 81°F (27.2°C) to a low of 64.6°F (18.1°C).
What is the most humid month in Cornell?
July is the most humid month in Cornell, Illinois, with an average relative humidity of 85%.
What is the least humid month in Cornell?
The least humid month in Cornell, Illinois, is October, with an average relative humidity of 71%.
What is the month with the shortest days in Cornell?
December has the shortest days of the year in Cornell, with an average of 9h and 18min of daylight.
What is the month with the lowest UV index in Cornell?
December is the month with the lowest UV index, with an average maximum UV index of 1.
Average temperature
Cornell, IL
The warmest month (with the highest average high temperature) is July (81°F).
The month with the lowest average high temperature is January (30.2°F).
The month with the highest average low temperature is July (64.6°F).
The coldest month (with the lowest average low temperature) is January (18.5°F).
Average pressure
Cornell, IL
- Average pressure in January:
30.13"Hg - Average pressure in February:
30.11"Hg - Average pressure in March:
30.08"Hg - Average pressure in April:
29.94"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:
30.11"Hg - Average pressure in December:
30.11"Hg
The month with the highest atmospheric pressure is January (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).
Average wind speed
Cornell, IL
- Average wind speed in January:
10.7mph - Average wind speed in February:
10.6mph - Average wind speed in March:
10.3mph - Average wind speed in April:
10.6mph - Average wind speed in May:
9mph - Average wind speed in June:
7.8mph
- 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:
9.4mph - Average wind speed in November:
10.2mph - Average wind speed in December:
10.1mph
The windiest month (with the highest average wind speed) is January (10.7mph).
The calmest month (with the lowest average wind speed) is August (6.3mph).
Average humidity
Cornell, IL
The month with the highest relative humidity is July (85%).
The month with the lowest relative humidity is October (71%).
Average rainfall
Cornell, IL
- Average rainfall in January:
0.71" - Average rainfall in February:
0.71" - Average rainfall in March:
1.18" - Average rainfall in April:
1.77" - Average rainfall in May:
2.44" - Average rainfall in June:
1.93"
- Average rainfall in July:
1.81" - Average rainfall in August:
1.3" - Average rainfall in September:
1.06" - Average rainfall in October:
1.26" - Average rainfall in November:
0.79" - Average rainfall in December:
0.75"
The wettest month (with the highest rainfall) is May (2.44").
The driest months (with the least rainfall) are January and February (0.71").
Average rainfall days
Cornell, IL
- Average rainfall days in January:
4.3 days - Average rainfall days in February:
4.7 days - Average rainfall days in March:
10.8 days - Average rainfall days in April:
13 days - Average rainfall days in May:
16.8 days - Average rainfall days in June:
14.8 days
- Average rainfall days in July:
14.6 days - Average rainfall days in August:
12.8 days - Average rainfall days in September:
10.1 days - Average rainfall days in October:
10.5 days - Average rainfall days in November:
6.7 days - Average rainfall days in December:
6.2 days
The month with the highest number of rainy days is May (16.8 days).
The month with the least rainy days is January (4.3 days).
Average snowfall
Cornell, IL
The month with the highest snowfall is January (1.73").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days
Cornell, IL
- Average snowfall days in January:
10.2 days - Average snowfall days in February:
7.2 days - Average snowfall days in March:
4.1 days - Average snowfall days in April:
0.8 days - Average snowfall days in May:
0 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:
0.2 days - Average snowfall days in November:
1.8 days - Average snowfall days in December:
6.3 days
The month with the highest number of snowfall days is January (10.2 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight / Average sunshine
Cornell, IL
- Average daylight in January:
9h and 4min - 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 3min - 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 2min
The month with the longest days is June (Average daylight: 15h and 6min).
The month with the shortest days is December (Average daylight: 9h and 18min).
- Average sunshine in January:
3h and 5min - Average sunshine in February:
4h and 1min - Average sunshine in March:
6h and 1min - Average sunshine in April:
7h and 5min - Average sunshine in May:
8h and 5min - Average sunshine in June:
9h and 5min
- Average sunshine in July:
9h and 4min - Average sunshine in August:
9h and 5min - Average sunshine in September:
8h and 5min - Average sunshine in October:
5h and 5min - Average sunshine in November:
5h and 1min - Average sunshine in December:
4h and 2min
The months with the most sunshine are June and August (Average sunshine: 9h and 48min).
The month with the least sunshine is January (Average sunshine: 3h and 48min).
Average sunshine days
Cornell, IL
- Average sunshine days in January:
18.5 days - Average sunshine days in February:
16.7 days - Average sunshine days in March:
15.9 days - Average sunshine days in April:
14 days - Average sunshine days in May:
11.6 days - Average sunshine days in June:
11.9 days
- Average sunshine days in July:
11.3 days - Average sunshine days in August:
14.4 days - Average sunshine days in September:
17.8 days - Average sunshine days in October:
19.1 days - Average sunshine days in November:
20.5 days - Average sunshine days in December:
19.3 days
The month with the most sunshine days is November (20.5 days).
The month with the least sunshine days is July (11.3 days).
Average UV index
Cornell, IL
The months with the highest UV index are June and July (UV index 6).
The month with the lowest UV index is December (UV index 1).
Average cloud cover
Cornell, IL
The month with the most cloud cover is January (Cloud cover 59).
The month with the least cloud cover is September (Cloud cover 32).
Average visibility
Cornell, 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).
Cornell, Illinois, USA
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