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City briefing

South Holland

Illinois, United States · 22,000 people
Jan
Feb
Mar
Apr
May
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The year’s records
Annual mean 11°C · wettest around July · prevailing wind W
Warmest
26.6 °C
Coldest
-2.5 °C
Wettest
76%
Windiest
6.0 m/s
Prevailing
W
4.9 m/s average

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

Jan
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Every reading

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

The average temperature in South Holland over the whole year is 11°C. July is the hottest month, with highs of about 26°C; January is the coldest, with lows of about -4°C.

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

MonthHighLowFeels likeChance of rainCloudWindBeing outsideSunWalking
January-2°C-4°C-8°C58%65%4.6 m/s002
February1°C-3°C-5°C58%53%4.6 m/s107
March6°C2°C1°C66%54%4.8 m/s3017
April12°C6°C7°C64%53%4.7 m/s17138
May18°C13°C15°C67%49%3.9 m/s441155
June25°C19°C24°C63%40%3.6 m/s563539
July26°C21°C27°C69%39%3.1 m/s485320
August26°C19°C26°C67%37%3.1 m/s554925
September23°C16°C22°C64%40%3.4 m/s642949
October16°C10°C12°C67%49%4.0 m/s33457
November8°C3°C2°C64%51%4.5 m/s6024
December2°C-1°C-4°C65%60%4.5 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 South Holland weather by season

Year round, South Holland has days of about -2°C at their warmest in January, its coolest month, and 26°C in July, its warmest; the coolest hours of the day run from -4°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 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.

South Holland weather in winterDecember to February

High 1°CLow -3°CRain 60%

Winter in South Holland has typical daily highs of about 1°C and lows of about -3°C, with a 60% chance of rain on a given day.

South Holland weather in springMarch to May

High 12°CLow 7°CRain 65%

Spring in South Holland has typical daily highs of about 12°C and lows of about 7°C, with a 65% chance of rain on a given day.

South Holland weather in summerJune to August

High 26°CLow 20°CRain 66%

Summer in South Holland has typical daily highs of about 26°C and lows of about 20°C, with a 66% chance of rain on a given day.

South Holland weather in autumnSeptember to November

High 16°CLow 10°CRain 65%

Autumn in South Holland has typical daily highs of about 16°C and lows of about 10°C, with a 65% chance of rain on a given day.

When is the rainy season in South Holland?

South Holland has no sharply defined rainy season: the chance of rain on a given day runs from 58% in February, the driest month, to 69% in July, the wettest.

What time of year is South Holland windiest?

Winds in South Holland are highest in March, averaging 4.8 m/s (17 km/h), and lightest in July, at 3.1 m/s (11 km/h). The prevailing wind is from the W.

What is the average temperature in South Holland year round?

The average temperature in South Holland over the whole year is 11°C. July is the hottest month, with highs of about 26°C; January is the coldest, with lows of about -4°C.

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