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City briefing

Cary

Illinois, United States · 18,000 people
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
The year’s records
Annual mean 10°C · wettest around May · prevailing wind SW
Warmest
26.8 °C
Coldest
-3.1 °C
Wettest
31%
Windiest
6.0 m/s
Prevailing
SW
4.9 m/s average

When this place is good five ratings · thirty-six ten-day sections · click a cell to read it

Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec

Every reading

bars actual · line feels-like, °C
-15-10-50510152025JanuaryFebruaryMarchAprilMayJuneJulyAugustSeptemberOctoberNovemberDecember-15-10-50510152025JFMAMJJASOND

The average temperature in Cary over the whole year is 10°C. July is the hottest month, with highs of about 27°C; January is the coldest, with lows of about -5°C.

Month by month Cary climate by month: average temperatures year round · click a month to read it

MonthHighLowFeels likeChance of rainCloudWindBeing outsideSunWalking
January-3°C-5°C-9°C24%65%4.4 m/s001
February0°C-4°C-6°C22%53%4.5 m/s107
March6°C1°C1°C26%56%4.6 m/s3019
April11°C5°C6°C27%55%4.6 m/s17044
May18°C12°C15°C27%51%4.0 m/s481263
June25°C18°C24°C26%41%3.6 m/s634042
July27°C20°C27°C25%39%3.1 m/s545922
August26°C19°C26°C25%40%2.9 m/s615327
September23°C16°C22°C25%43%3.3 m/s693054
October15°C9°C11°C27%50%3.8 m/s34461
November7°C2°C2°C25%53%4.2 m/s7025
December1°C-2°C-4°C25%61%4.2 m/s006

High and low are the warmest and coolest of four readings a day — midnight, 6am, noon and 6pm — so a true overnight low can sit a degree or two under them. Chance of rain, cloud and wind are the day’s average; feels-like and the three ratings (each out of 100: Good from 55, Ideal from 80) are read at midday.

Seasons, and the year in short Cary weather by season

Year round, Cary has days of about -3°C at their warmest in January, its coolest month, and 27°C in July, its warmest; the coolest hours of the day run from -5°C to 20°C through the year, and the average temperature over the year is 10°C around the clock. Rain is most likely around May and least likely around February. Every figure here is a decade of observations blended into one representative year, so it reads as what this date is usually like, not a forecast for one particular day.

Cary weather in winterDecember to February

High -0°CLow -4°CRain 24%

Winter in Cary has typical daily highs of about -0°C and lows of about -4°C, with a 24% chance of rain on a given day.

Cary weather in springMarch to May

High 12°CLow 6°CRain 27%

Spring in Cary has typical daily highs of about 12°C and lows of about 6°C, with a 27% chance of rain on a given day.

Cary weather in summerJune to August

High 26°CLow 19°CRain 25%

Summer in Cary has typical daily highs of about 26°C and lows of about 19°C, with a 25% chance of rain on a given day.

Cary weather in autumnSeptember to November

High 15°CLow 9°CRain 26%

Autumn in Cary has typical daily highs of about 15°C and lows of about 9°C, with a 26% chance of rain on a given day.

When is the rainy season in Cary?

Cary has no sharply defined rainy season: the chance of rain on a given day runs from 22% in February, the driest month, to 27% in May, the wettest.

What time of year is Cary windiest?

Winds in Cary are highest in March, averaging 4.6 m/s (17 km/h), and lightest in August, at 2.9 m/s (10 km/h). The prevailing wind is from the SW.

What is the average temperature in Cary year round?

The average temperature in Cary over the whole year is 10°C. July is the hottest month, with highs of about 27°C; January is the coldest, with lows of about -5°C.

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