Climate · Huron

Huron, SD climate

Huron has cold, snowy winters and warm summers. A typical July afternoon reaches 86°, a January night drops to 6°, and about 44 inches of snow falls in a normal winter.

NOAA 1991-2020 climate normals Updated once a decade
July high
86°
465th hottest of 1,384 South Dakota towns
January low
6°
622nd coldest of 1,384 South Dakota towns
Rain + melted snow
23 in
578th driest of 1,384 South Dakota towns
Snow a winter
44 in
339th snowiest of 1,367 South Dakota towns
A normal year

What a year in Huron feels like

Winter

29° / 9°
Typical high / low · 13 days with an inch or more of snow

Spring

57° / 34°
Typical high / low · Last frost around May 6

Summer

83° / 59°
Typical high / low · 22 days reach 90° in a normal year

Fall

60° / 36°
Typical high / low · First frost around Oct 2
Best months to be outsideMayJunAugSepHighs of 62–84° and lows of 40° or more
Month by month

Huron weather by month

Average highs, lows, rain and snow for every month, from NOAA’s 1991–2020 normals.

MonthHighLowRain + meltSnowWet daysSnow on ground30-yr range
January25°6°0.5" 7.8"622 4° – 31°
February31°10°0.7" 8.9"716 5° – 32°
March44°22°1.1" 6.6"711 22° – 48°
April58°33°2.5" 5.5"93 36° – 53°
May70°46°3.2" 0110 53° – 65°
June80°57°3.8" 0120 64° – 73°
July86°62°3.0" 090 65° – 80°
August83°59°2.7" 080 66° – 75°
September76°50°2.4" 070 56° – 68°
October60°36°2.0" 1.4"71 40° – 52°
November44°22°0.8" 5.8"55 23° – 42°
December30°11°0.6" 8.4"618 7° – 28°
Year57°34°23.3"44.4"9575

“Wet days” have at least 0.01" of rain or melted snow. “Snow on ground” counts days with 1" or more. The 30-year range is the coldest and warmest that month’s average temperature got between 1991 and 2020.

Rain & snow

Rain and snow in Huron

Huron gets 23 inches of rain and melted snow a year. June is the wettest month and January the driest. Rain or snow falls on about 95 days a year. Snow covers the ground about 75 days of the year.

23 in
Rain + melted snow a year
Less rain than 84% of U.S. towns
44 in
Snow in a normal winter
More snow than 76% of U.S. towns
75 days
With 1"+ of snow on the ground
More than 79% of U.S. towns

Rain + melted snow by month

Inches of water
3.8"

Snowfall by month

Inches of snow
8.9"
Frost & the growing season

About 146 frost-free days a year

In half of years the last 32° night comes by May 6 and the first one by October 2. That leaves about 146 frost-free days for gardens, shorter than 84% of U.S. towns.

167
nights at or below 32° in a normal year
28
nights below 0° in a normal year
22
days that reach 90° in a normal year

Freezing nights by month

Average nights at or below 32°

90° days by month

Average days at 90° or more
Heating & cooling

Heating and cooling a home in Huron

Engineers use “degree days” to estimate how hard a furnace or air conditioner works. In Huron, 91% of that work is heating and 9% is cooling, so the furnace matters far more than the air conditioner.

91%heating
7,683 heating degree daysMore heating than 82% of U.S. towns
752 cooling degree daysLess cooling than 57% of U.S. towns

Degree days measure how far each day’s average temperature falls below or rises above 65°, added up over a year. Source: NOAA station normals.

Around Huron

Huron and its neighbors

Huron borders 5 towns with climate data. January nights across them vary by 1.0°. Valley has the coldest January nights (5°) and Clyde the hottest July afternoons (86°). Huron’s January low is 6° and its July high 86°.

Clifton: January low 6°, July high 86°Richland: January low 6°, July high 86°Dearborn: January low 6°, July high 86°Grant: January low 6°, July high 86°Iowa: January low 5°, July high 85°Cavour: January low 5°, July high 85°Hartland: January low 6°, July high 86°Fairfield: January low 5°, July high 86°Custer: January low 6°, July high 86°Clyde: January low 6°, July high 86°Valley: January low 5°, July high 86°Theresa: January low 6°, July high 86°Morningside: January low 6°, July high 86°Huron: January low 6°, July high 86° HuronCusterClydeValleyTheresaMorningside
ColderMilder5° to 6°
Valley5.2° −0.7°
Theresa5.7° −0.2°
Morningside5.7° −0.2°
Huron5.9°
Custer5.9° same
Clyde6.2° +0.3°

Temperatures and rain come from NOAA’s 5 km grid, so each town gets its own value.

Compared with other towns

How Huron compares

Summer heat86° July high
Hotter than 57% of U.S. towns465th hottest of 1,384 South Dakota towns
Winter cold6° January low
Colder than 88% of U.S. towns622nd coldest of 1,384 South Dakota towns
Precipitation23" a year
Drier than 84% of U.S. towns578th driest of 1,384 South Dakota towns
Snow44" a winter
Snowier than 76% of U.S. towns339th snowiest of 1,367 South Dakota towns
Growing season146 frost-free days
Shorter than 84% of U.S. towns556th shortest of 1,383 South Dakota towns

Compared with every U.S. town and city on TownTapestry, each counted once.

Then and now

Warmer than it used to be

+1.2°1991–2020 average vs. the 20th century (1901–2000)

The last 30 years in Huron averaged 1.2° warmer than the 1900s. The biggest change is in January (+3.1°). The shift is smaller than in 53% of U.S. towns.

❄️ Winter+2.7° now 19°, was 16°
🌷 Spring+0.8° now 46°, was 45°
☀️ Summer+0.4° now 71°, was 71°
🍂 Fall+0.8° now 48°, was 47°

Change by month1991–2020 average minus 1901–2000 average, at Huron’s spot on NOAA’s grid

Year to year

How much a month can swing

A normal is an average, and real years wander around it. February swings the most: between 1991 and 2020 its average temperature ranged from 5° to 32°. June is the most reliable, staying within 9°.

Coldest to warmest month in 30 yearsNormal
Questions

Common questions about Huron’s climate

What is the coldest month in Huron?

January, with a typical high of 25° and a low of 6°.

What is the hottest month in Huron?

July, with a typical high of 86° and a low of 62°. About 22 days a year reach 90°.

How much snow does Huron get?

About 44 inches in a normal winter, most of it in February.

When is the first frost in Huron?

In half of years the first 32° night comes by October 2, and the last spring frost by May 6.

What is the rainiest month in Huron?

June, with 3.8 inches of rain and melted snow. The year totals 23 inches.

Temperatures and rainfall come from NOAA’s gridded climate normals for Huron itself (about a 3-mile square). Snow, frost dates and day counts come from NOAA’s weather station at Huron Rgnl Airport, SD (3 mi) away. Normals are 30-year averages, not a forecast. Source: NOAA NCEI U.S. Climate Normals, 1991–2020 and 1901–2000.

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