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City briefing

Markham

Illinois, United States · 12,000 people
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
The year’s records
Annual mean 11°C · wettest around July · prevailing wind W
Warmest
26.9 °C
Coldest
-2.6 °C
Wettest
74%
Windiest
5.9 m/s
Prevailing
W
4.8 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
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Nov
Dec

Every reading

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

The average temperature in Markham over the whole year is 11°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 Markham climate by month: average temperatures year round · click a month to read it

MonthHighLowFeels likeChance of rainCloudWindBeing outsideSunWalking
January-2°C-5°C-8°C56%65%4.5 m/s002
February1°C-3°C-5°C56%53%4.5 m/s108
March7°C2°C1°C63%55%4.7 m/s3018
April12°C6°C7°C60%53%4.6 m/s18140
May19°C13°C15°C64%50%3.9 m/s451256
June25°C19°C24°C60%40%3.6 m/s563638
July27°C21°C27°C65%39%3.0 m/s475419
August26°C19°C26°C64%38%3.0 m/s544924
September23°C16°C22°C61%40%3.3 m/s643049
October16°C10°C12°C64%49%3.9 m/s34457
November8°C3°C2°C60%51%4.4 m/s6025
December2°C-1°C-4°C62%60%4.4 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 Markham weather by season

Year round, Markham has days of about -2°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 21°C through the year, and the average temperature over the year is 11°C around the clock. Rain is most likely around July and least likely around January. 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.

Markham weather in winterDecember to February

High 1°CLow -3°CRain 58%

Winter in Markham has typical daily highs of about 1°C and lows of about -3°C, with a 58% chance of rain on a given day.

Markham weather in springMarch to May

High 12°CLow 7°CRain 62%

Spring in Markham has typical daily highs of about 12°C and lows of about 7°C, with a 62% chance of rain on a given day.

Markham weather in summerJune to August

High 26°CLow 20°CRain 63%

Summer in Markham has typical daily highs of about 26°C and lows of about 20°C, with a 63% chance of rain on a given day.

Markham weather in autumnSeptember to November

High 16°CLow 10°CRain 62%

Autumn in Markham has typical daily highs of about 16°C and lows of about 10°C, with a 62% chance of rain on a given day.

When is the rainy season in Markham?

Markham has no sharply defined rainy season: the chance of rain on a given day runs from 56% in January, the driest month, to 65% in July, the wettest.

What time of year is Markham windiest?

Winds in Markham are highest in March, averaging 4.7 m/s (17 km/h), and lightest in July, at 3.0 m/s (11 km/h). The prevailing wind is from the W.

What is the average temperature in Markham year round?

The average temperature in Markham over the whole year is 11°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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