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City briefing

Vermillion

South Dakota, United States · 12,000 people
Jan
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Apr
May
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The year’s records
Annual mean 9°C · wettest around May · prevailing wind W
Warmest
28.3 °C
Coldest
-6.9 °C
Wettest
65%
Windiest
6.9 m/s
Prevailing
W
5.4 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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May
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Every reading

bars actual · line feels-like, °C
-20-15-10-5051015202530JanuaryFebruaryMarchAprilMayJuneJulyAugustSeptemberOctoberNovemberDecember-20-15-10-5051015202530JFMAMJJASOND

The average temperature in Vermillion over the whole year is 9°C. July is the hottest month, with highs of about 28°C; January is the coldest, with lows of about -9°C.

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

MonthHighLowFeels likeChance of rainCloudWindBeing outsideSunWalking
January-4°C-9°C-11°C42%38%4.4 m/s001
February-2°C-9°C-9°C34%31%4.3 m/s008
March7°C-1°C1°C60%33%4.9 m/s5123
April13°C4°C7°C56%31%5.2 m/s18145
May20°C12°C16°C62%29%4.1 m/s511459
June27°C19°C26°C60%18%3.8 m/s485027
July28°C20°C29°C61%16%3.1 m/s356012
August26°C17°C25°C55%22%3.1 m/s584730
September24°C14°C21°C43%29%3.5 m/s663051
October15°C6°C10°C44%34%4.0 m/s28255
November6°C-1°C-0°C41%34%4.1 m/s5023
December-0°C-5°C-7°C45%32%4.3 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 Vermillion weather by season

Year round, Vermillion has days of about -4°C at their warmest in January, its coolest month, and 28°C in July, its warmest; the coolest hours of the day run from -9°C to 20°C through the year, and the average temperature over the year is 9°C around the clock. Rain is most likely around May 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.

Vermillion weather in winterDecember to February

High -2°CLow -8°CRain 40%

Winter in Vermillion has typical daily highs of about -2°C and lows of about -8°C, with a 40% chance of rain on a given day.

Vermillion weather in springMarch to May

High 14°CLow 5°CRain 59%

Spring in Vermillion has typical daily highs of about 14°C and lows of about 5°C, with a 59% chance of rain on a given day.

Vermillion weather in summerJune to August

High 27°CLow 19°CRain 59%

Summer in Vermillion has typical daily highs of about 27°C and lows of about 19°C, with a 59% chance of rain on a given day.

Vermillion weather in autumnSeptember to November

High 15°CLow 6°CRain 43%

Autumn in Vermillion has typical daily highs of about 15°C and lows of about 6°C, with a 43% chance of rain on a given day.

When is the rainy season in Vermillion?

The rainy (wet) season in Vermillion runs from March to August, peaking in May with a 62% chance of rain on a given day. The dry season is September to February; February is the driest month, at 34%.

What time of year is Vermillion windiest?

Winds in Vermillion are highest in April, averaging 5.2 m/s (19 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 Vermillion year round?

The average temperature in Vermillion over the whole year is 9°C. July is the hottest month, with highs of about 28°C; January is the coldest, with lows of about -9°C.

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