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City briefing

Clayton

Missouri, United States · 17,000 people
Jan
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Mar
Apr
May
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The year’s records
Annual mean 14°C · wettest around April · prevailing wind SW
Warmest
29.9 °C
Coldest
0.8 °C
Wettest
29%
Windiest
5.4 m/s
Prevailing
SW
4.1 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 Clayton over the whole year is 14°C. July is the hottest month, with highs of about 30°C; January is the coldest, with lows of about -2°C.

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

MonthHighLowFeels likeChance of rainCloudWindBeing outsideSunWalking
January2°C-2°C-4°C25%55%3.6 m/s1011
February6°C-0°C1°C25%47%3.6 m/s7026
March12°C5°C7°C31%50%4.0 m/s15045
April17°C9°C13°C32%44%3.9 m/s41662
May23°C15°C21°C31%44%3.1 m/s613151
June29°C21°C29°C27%31%2.7 m/s395615
July30°C22°C32°C29%33%2.2 m/s17534
August29°C20°C30°C27%34%2.1 m/s325610
September27°C17°C26°C23%30%2.2 m/s535328
October19°C10°C16°C26%38%2.9 m/s511562
November11°C4°C7°C27%40%3.1 m/s18148
December6°C1°C1°C27%48%3.4 m/s3024

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 Clayton weather by season

Year round, Clayton has days of about 2°C at their warmest in January, its coolest month, and 30°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 September. 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.

Clayton weather in winterDecember to February

High 4°CLow -1°CRain 25%

Winter in Clayton has typical daily highs of about 4°C and lows of about -1°C, with a 25% chance of rain on a given day.

Clayton weather in springMarch to May

High 17°CLow 10°CRain 31%

Spring in Clayton has typical daily highs of about 17°C and lows of about 10°C, with a 31% chance of rain on a given day.

Clayton weather in summerJune to August

High 29°CLow 21°CRain 28%

Summer in Clayton has typical daily highs of about 29°C and lows of about 21°C, with a 28% chance of rain on a given day.

Clayton weather in autumnSeptember to November

High 19°CLow 10°CRain 26%

Autumn in Clayton has typical daily highs of about 19°C and lows of about 10°C, with a 26% chance of rain on a given day.

When is the rainy season in Clayton?

Clayton has no sharply defined rainy season: the chance of rain on a given day runs from 23% in September, the driest month, to 32% in April, the wettest.

What time of year is Clayton windiest?

Winds in Clayton are highest in March, averaging 4.0 m/s (14 km/h), and lightest in August, at 2.1 m/s (8 km/h). The prevailing wind is from the SW.

What is the average temperature in Clayton year round?

The average temperature in Clayton over the whole year is 14°C. July is the hottest month, with highs of about 30°C; January is the coldest, with lows of about -2°C.

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