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City briefing

Sterling

Illinois, United States · 15,000 people
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
The year’s records
Annual mean 10°C · wettest around July · prevailing wind SW
Warmest
27.4 °C
Coldest
-3.4 °C
Wettest
67%
Windiest
5.9 m/s
Prevailing
SW
4.5 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
-15-10-5051015202530JanuaryFebruaryMarchAprilMayJuneJulyAugustSeptemberOctoberNovemberDecember-15-10-5051015202530JFMAMJJASOND

The average temperature in Sterling 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 -6°C.

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

MonthHighLowFeels likeChance of rainCloudWindBeing outsideSunWalking
January-3°C-6°C-9°C53%58%3.9 m/s001
February0°C-5°C-6°C49%45%4.1 m/s108
March7°C1°C1°C58%50%4.4 m/s3020
April13°C5°C7°C55%47%4.4 m/s19144
May20°C12°C17°C60%45%3.7 m/s501458
June26°C18°C25°C61%32%3.2 m/s554431
July27°C19°C28°C63%33%2.4 m/s435914
August26°C18°C27°C61%33%2.2 m/s535321
September24°C14°C22°C58%33%2.7 m/s613345
October15°C8°C12°C56%44%3.4 m/s33556
November7°C1°C2°C55%43%3.8 m/s7023
December1°C-3°C-5°C56%53%3.9 m/s005

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 Sterling weather by season

Year round, Sterling 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 -6°C to 19°C through the year, and the average temperature over the year is 10°C around the clock. Rain is most likely around July 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.

Sterling weather in winterDecember to February

High -1°CLow -5°CRain 53%

Winter in Sterling has typical daily highs of about -1°C and lows of about -5°C, with a 53% chance of rain on a given day.

Sterling weather in springMarch to May

High 13°CLow 6°CRain 58%

Spring in Sterling has typical daily highs of about 13°C and lows of about 6°C, with a 58% chance of rain on a given day.

Sterling weather in summerJune to August

High 26°CLow 18°CRain 62%

Summer in Sterling has typical daily highs of about 26°C and lows of about 18°C, with a 62% chance of rain on a given day.

Sterling weather in autumnSeptember to November

High 15°CLow 8°CRain 56%

Autumn in Sterling has typical daily highs of about 15°C and lows of about 8°C, with a 56% chance of rain on a given day.

When is the rainy season in Sterling?

Sterling has no sharply defined rainy season: the chance of rain on a given day runs from 49% in February, the driest month, to 63% in July, the wettest.

What time of year is Sterling windiest?

Winds in Sterling are highest in March, averaging 4.4 m/s (16 km/h), and lightest in August, at 2.2 m/s (8 km/h). The prevailing wind is from the SW.

What is the average temperature in Sterling year round?

The average temperature in Sterling 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 -6°C.

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