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City briefing

Centralia

Illinois, United States · 12,000 people
Jan
Feb
Mar
Apr
May
Jun
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Aug
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The year’s records
Annual mean 14°C · wettest around April · prevailing wind SW
Warmest
29.4 °C
Coldest
0.6 °C
Wettest
78%
Windiest
5.4 m/s
Prevailing
SW
4.0 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
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Dec

Every reading

bars actual · line feels-like, °C
-10-5051015202530JanuaryFebruaryMarchAprilMayJuneJulyAugustSeptemberOctoberNovemberDecember-10-5051015202530JFMAMJJASOND

The average temperature in Centralia over the whole year is 14°C. July is the hottest month, with highs of about 29°C; January is the coldest, with lows of about -2°C.

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

MonthHighLowFeels likeChance of rainCloudWindBeing outsideSunWalking
January2°C-2°C-3°C66%55%3.5 m/s008
February5°C0°C0°C64%48%3.6 m/s6023
March11°C5°C7°C71%48%3.9 m/s13040
April17°C9°C13°C72%42%3.7 m/s37457
May23°C16°C21°C69%42%2.9 m/s572947
June28°C21°C29°C70%29%2.5 m/s355113
July29°C22°C32°C68%32%1.8 m/s14473
August28°C20°C31°C69%32%1.7 m/s26527
September27°C16°C27°C69%29%1.8 m/s475124
October20°C10°C17°C63%37%2.6 m/s471656
November11°C4°C7°C72%38%2.8 m/s16143
December6°C2°C1°C64%48%3.2 m/s3022

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 Centralia weather by season

Year round, Centralia has days of about 2°C at their warmest in January, its coolest month, and 29°C in July, its warmest; the coolest hours of the day run from -2°C to 22°C through the year, and the average temperature over the year is 14°C around the clock. Rain is most likely around April and least likely around October. 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.

Centralia weather in winterDecember to February

High 4°CLow -0°CRain 65%

Winter in Centralia has typical daily highs of about 4°C and lows of about -0°C, with a 65% chance of rain on a given day.

Centralia weather in springMarch to May

High 17°CLow 10°CRain 71%

Spring in Centralia has typical daily highs of about 17°C and lows of about 10°C, with a 71% chance of rain on a given day.

Centralia weather in summerJune to August

High 29°CLow 21°CRain 69%

Summer in Centralia has typical daily highs of about 29°C and lows of about 21°C, with a 69% chance of rain on a given day.

Centralia weather in autumnSeptember to November

High 19°CLow 10°CRain 68%

Autumn in Centralia has typical daily highs of about 19°C and lows of about 10°C, with a 68% chance of rain on a given day.

When is the rainy season in Centralia?

Centralia has no sharply defined rainy season: the chance of rain on a given day runs from 63% in October, the driest month, to 72% in April, the wettest.

What time of year is Centralia windiest?

Winds in Centralia are highest in March, averaging 3.9 m/s (14 km/h), and lightest in August, at 1.7 m/s (6 km/h). The prevailing wind is from the SW.

What is the average temperature in Centralia year round?

The average temperature in Centralia over the whole year is 14°C. July is the hottest month, with highs of about 29°C; January is the coldest, with lows of about -2°C.

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