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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 Cary, Illinois, with an average temperature varying between 27°F (-2.8°C) and 15.3°F (-9.3°C). In Cary, the month of January is known for its lowest average temperatures, reaching a high of 27°F (-2.8°C) and a low of 15.3°F (-9.3°C). Weather in January »
Weather in February
The last month of the winter, February, is another freezing cold month in Cary, Illinois, with an average temperature ranging between min 18°F (-7.8°C) and max 30.6°F (-0.8°C). February is marked by an average high-temperature of a still freezing cold 30.6°F (-0.8°C), almost identical to the preceding month. Weather in February »
Weather in March
March, the first month of the spring in Cary, is a chilly month, with temperature in the range of an average low of 29.7°F (-1.3°C) and an average high of 43.5°F (6.4°C). Cary in March sees a temperature change, with average high-temperatures moving from a freezing cold 30.6°F (-0.8°C) in February to a frosty 43.5°F (6.4°C). Weather in March »
Weather in April
April in Cary, Illinois, is a cool spring month, with an average temperature ranging between max 54.7°F (12.6°C) and min 38.8°F (3.8°C). With the onset of April, Cary sees a temperature rise, with the average high-temperature moving from March's chilly 43.5°F (6.4°C) to a fresh 54.7°F (12.6°C). Weather in April »
Weather in May
May, the last month of the spring in Cary, is an enjoyable month, with an average temperature fluctuating between 49.8°F (9.9°C) and 66.7°F (19.3°C). The shift into May brings an increase in the average high-temperature, moving from a cool 54.7°F (12.6°C) in April to a refreshing 66.7°F (19.3°C). Weather in May »
Weather in June
June, the first month of the summer in Cary, is a moderately hot month, with an average temperature ranging between min 59.2°F (15.1°C) and max 76.1°F (24.5°C). Cary's weather shows a temperature rise with the arrival of June, moving from a refreshing 66.7°F (19.3°C) in May to a warm 76.1°F (24.5°C). Weather in June »
Weather in July
July, the same as June, is a moderately hot summer month in Cary, Illinois, with an average temperature ranging between max 79.9°F (26.6°C) and min 63.5°F (17.5°C). July is the warmest month, with an average high-temperature of 79.9°F (26.6°C) and an average low-temperature of 63.5°F (17.5°C). Weather in July »
Weather in August
August, the last month of the summer in Cary, is also a moderately hot month, with an average temperature fluctuating between 62.2°F (16.8°C) and 78.4°F (25.8°C). August's onset records an average high-temperature of a still warm 78.4°F (25.8°C), a near match to July's 79.9°F (26.6°C). Weather in August »
Weather in September
September, the first month of the autumn in Cary, is still a pleasant month, with an average temperature ranging between max 72.5°F (22.5°C) and min 55.8°F (13.2°C). The arrival of September is marked by a minor reduction in average high-temperature, sliding from a moderately hot 78.4°F (25.8°C) in August to an agreeable 72.5°F (22.5°C). Weather in September »
Weather in October
October, like September, is a moderate autumn month in Cary, Illinois, with temperature in the range of an average low of 44.2°F (6.8°C) and an average high of 59°F (15°C). October comes with a decrease in the average high-temperature, falling from an agreeable 72.5°F (22.5°C) in September to a refreshing 59°F (15°C). Weather in October »
Weather in November
November, the last month of the autumn in Cary, is also a frosty month, with an average temperature fluctuating between 32.4°F (0.2°C) and 45.1°F (7.3°C). The onset of November results in a decrease in the average high-temperature, receding from a refreshing 59°F (15°C) in October to a frosty 45.1°F (7.3°C). Weather in November »
Weather in December
The first month of the winter, December, is also a wintry month in Cary, Illinois, with an average temperature ranging between max 33.3°F (0.7°C) and min 23.2°F (-4.9°C). December comes with a drop in the average high-temperature, falling from November's frosty 45.1°F (7.3°C) to an icy 33.3°F (0.7°C). Weather in December »
[Resources]Frequently asked questions
What is the coldest time of year in Cary?
In Cary, January is the coldest month, with temperatures averaging a high of 27°F (-2.8°C) and a low of 15.3°F (-9.3°C).
What is the most humid month in Cary?
The months with the highest humidity in Cary are January and February, with an average relative humidity of 84%.
How many days does it rain in Cary?
Throughout the year, in Cary, Illinois, there are 151.2 rainfall days, and 24.17" (614mm) of precipitation is accumulated.
When does it snow in Cary?
January through May, October through December are months with snowfall in Cary, Illinois.
When does it snow the most in Cary?
January is the month with the most snowfall in Cary, Illinois. Snow falls for 13.2 days and accumulates 3.82" (97mm) of snow.
How many days does it snow in Cary?
Throughout the year, in Cary, Illinois, there are 48.9 snowfall days, and 14.76" (375mm) of snow is accumulated.
What is the month with the least sunshine in Cary?
The month with the least sunshine in Cary is January, with an average of 3.6h of sunshine.
What is the month with the lowest UV index in Cary?
The months with the lowest UV index in Cary are January and December, with an average maximum UV index of 1.
When is Daylight Saving Time (DST) in Cary?
On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts in Cary, 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 Cary?
The month with the most rainfall is June, when the rain falls for 17.2 days and typically aggregates up to 3.15" (80mm) of precipitation.
When it does not snow in Cary?
In Cary, Illinois, snow does not fall in June through September.
When are the longest days in Cary?
June has the longest days of the year, with an average of 15h and 12min of daylight.
What part of the year is the hottest in Cary?
The temperatures reach their highest averages in July, with highs of 79.9°F (26.6°C) and lows of 63.5°F (17.5°C).
What month has the most sunshine in Cary?
The month with the most sunshine in Cary, Illinois, is July, with an average of 10h of sunshine.
When is the highest UV index in Cary?
With an average maximum UV index of 6, August is the month with the highest UV index.
What is the least humid month in Cary?
The least humid month is October, with an average relative humidity of 75%.
What is the driest month in Cary?
December is the month with the least rainfall in Cary. Rain falls for 8 days and accumulates 1.1" (28mm) of precipitation.
What is the month with the shortest days in Cary?
The month with the shortest days is December, with an average of 9h and 12min of daylight.
Average temperature
Cary, 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 (27°F).
The month with the highest average low temperature is July (63.5°F).
The coldest month (with the lowest average low temperature) is January (15.3°F).
Average pressure
Cary, 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"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
Cary, IL
- Average wind speed in January:
10mph - Average wind speed in February:
9.9mph - Average wind speed in March:
9.6mph - Average wind speed in April:
9.8mph - Average wind speed in May:
8.3mph - Average wind speed in June:
7.2mph
- Average wind speed in July:
6.5mph - Average wind speed in August:
6.2mph - Average wind speed in September:
7.2mph - Average wind speed in October:
8.8mph - Average wind speed in November:
9.4mph - Average wind speed in December:
9.3mph
The windiest month (with the highest average wind speed) is January (10mph).
The calmest month (with the lowest average wind speed) is August (6.2mph).
Average humidity
Cary, IL
The months with the highest relative humidity are January and February (84%).
The month with the lowest relative humidity is October (75%).
Average rainfall
Cary, IL
- Average rainfall in January:
1.3" - Average rainfall in February:
1.34" - Average rainfall in March:
1.42" - Average rainfall in April:
2.83" - Average rainfall in May:
2.83" - Average rainfall in June:
3.15"
- Average rainfall in July:
2.52" - Average rainfall in August:
2.68" - Average rainfall in September:
1.69" - Average rainfall in October:
2.09" - Average rainfall in November:
1.22" - Average rainfall in December:
1.1"
The wettest month (with the highest rainfall) is June (3.15").
The driest month (with the least rainfall) is December (1.1").
Average rainfall days
Cary, IL
- Average rainfall days in January:
5.3 days - Average rainfall days in February:
5.3 days - Average rainfall days in March:
11.7 days - Average rainfall days in April:
15.5 days - Average rainfall days in May:
18.1 days - Average rainfall days in June:
17.2 days
- Average rainfall days in July:
18.8 days - Average rainfall days in August:
16.3 days - Average rainfall days in September:
12.4 days - Average rainfall days in October:
13.7 days - Average rainfall days in November:
8.9 days - Average rainfall days in December:
8 days
The month with the highest number of rainy days is July (18.8 days).
The months with the least rainy days are January and February (5.3 days).
Average snowfall
Cary, IL
- Average snowfall in January:
3.82" - Average snowfall in February:
3.43" - Average snowfall in March:
1.77" - Average snowfall in April:
1.97" - Average snowfall in May:
0.08" - Average snowfall in June:
0"
The month with the highest snowfall is January (3.82").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days
Cary, IL
- Average snowfall days in January:
13.2 days - Average snowfall days in February:
10.8 days - Average snowfall days in March:
7.2 days - Average snowfall days in April:
2.4 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:
0.5 days - Average snowfall days in November:
3.9 days - Average snowfall days in December:
10.8 days
The month with the highest number of snowfall days is January (13.2 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight / Average sunshine
Cary, 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 1min - Average sunshine in April:
7h and 3min - Average sunshine in May:
8h and 3min - Average sunshine in June:
9h and 4min
- Average sunshine in July:
10h and 0min - Average sunshine in August:
9h and 5min - Average sunshine in September:
9h and 0min - Average sunshine in October:
5h and 3min - Average sunshine in November:
5h and 1min - Average sunshine in December:
4h and 0min
The month with the most sunshine is July (Average sunshine: 10h and 0min).
The month with the least sunshine is January (Average sunshine: 3h and 36min).
Average sunshine days
Cary, IL
- Average sunshine days in January:
13.7 days - Average sunshine days in February:
11.6 days - Average sunshine days in March:
13.9 days - Average sunshine days in April:
10.8 days - Average sunshine days in May:
10.3 days - Average sunshine days in June:
10 days
- Average sunshine days in July:
10.4 days - Average sunshine days in August:
10.6 days - Average sunshine days in September:
14.2 days - Average sunshine days in October:
14.2 days - Average sunshine days in November:
16.2 days - Average sunshine days in December:
14.8 days
The month with the most sunshine days is November (16.2 days).
The month with the least sunshine days is June (10 days).
Average UV index
Cary, IL
The month with the highest UV index is August (UV index 6).
The months with the lowest UV index are January and December (UV index 1).
Average cloud cover
Cary, IL
The month with the most cloud cover is January (Cloud cover 62).
The months with the least cloud cover are August and September (Cloud cover 31).
Average visibility
Cary, IL
The months with the highest visibility are March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January and February (5mi).
Cary, Illinois, USA
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