Huron, SD

South Dakota · Records since 1881–2026

🌤️ 90°F
Currently in Huron
As of 1:30 PM CDT

Records for September 11

🔥 Record High

100°F

September 11, 1931

+22° from 78° normal

❄ Record Low

29°F

September 11, 1955

-23° from 52° normal
🌞 Normal high: 78°F 🌑 Normal low: 52°F 1991–2020 normals

All-Time Records — Huron

🔥
112°F
Hottest Day Ever
Jul 10, 1966
❄
-43°F
Coldest Day Ever
Jan 12, 1912
🌧
5.31"
Wettest Day Ever
Jun 18, 1967
☃
19.0"
Most Snow in One Day
Mar 14, 2002

First & Last Dates — Huron

How early and how late each seasonal turning point has ever arrived, across the full period of record

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Range ever recorded Normal date (1991–2020)
183 days
Longest growing season
1938
82 days
Shortest growing season
1902
147 days
Normal growing season
1991–2020 average

Top 10 Record Highs — September 11

# Temp Date
🏆 100°F September 11, 1931
2 97°F September 11, 1927
3 96°F September 11, 1990
4 95°F September 11, 1905
5 94°F September 11, 1978
6 93°F September 11, 2005
7 92°F September 11, 1963
8 92°F September 11, 1908
9 91°F September 11, 2018
10 91°F September 11, 1939

Top 5 Record Lows — September 11

# Temp Date
🥶 29°F September 11, 1955
2 30°F September 11, 1940
3 31°F September 11, 1896
4 34°F September 11, 1902
5 34°F September 11, 1894
About this data — Records are sourced from the NOAA Threadex dataset via RCC ACIS, a quality-controlled record for long-term climate stations. Threadex adjusts for station relocations and observation-time changes, making records comparable across all years since 1881–2026. Climate normals represent the 1991–2020 average.

Heat Wave Summary — Huron

threshold: 94°F (90th percentile of historical Jun–Aug highs)
4.2
Avg heat wave length
days (historical)
102°
Avg peak temp
during heat waves
8
Dangerous nights 2026
Overnights ≥ 70°F
2
Heat waves 2026
so far

Days ≥ 90°F Per Year

1881–2026
30
2026 so far
27
Avg/year 1970–2025
25
Avg/year (last 10 complete)
56
Most in a year (1931)

Average Daily High by Decade

Full year · complete decades only

Longest Heat Waves — Huron

# Dates Days Peak Avg High Avg Overnight Low
🏆 Jul 2, 1936 – Jul 19, 1936 18 110°F (Jul 17) 103°F 72°F
2 Jul 5, 1974 – Jul 17, 1974 13 106°F (Jul 13) 99°F 68°F
3 Jul 31, 1941 – Aug 10, 1941 11 104°F (Aug 3) 99°F 71°F
4 Jul 19, 1960 – Jul 29, 1960 11 103°F (Jul 21) 98°F 65°F
5 Jul 14, 1964 – Jul 23, 1964 10 108°F (Jul 23) 101°F 69°F
6 Jun 28, 1975 – Jul 7, 1975 10 101°F (Jul 4) 97°F 68°F
7 Jul 25, 1987 – Aug 2, 1987 9 101°F (Jul 31) 98°F 70°F
8 Jul 17, 1934 – Jul 24, 1934 8 111°F (Jul 20) 104°F 74°F
9 Jul 28, 1955 – Aug 4, 1955 8 105°F (Jul 31) 101°F 72°F
10 Aug 17, 1976 – Aug 24, 1976 8 103°F (Aug 21) 100°F 69°F

Heat Waves Per Year

Warm Summer Nights (Jun–Aug)

Nights where the overnight low exceeded the 1991–2020 normal low

55
2026 total
above-normal nights
43.3
Avg / summer
1970–2020
65
Most in a summer
1936

Above-Normal Summer Nights Per Year

Average June–August Low by Decade

Overnight lows · complete decades only

Precipitation

Annual totals and trend across the full period of record · see this year's standing →

Monthly Precipitation — Last 24 Months

Blue = actual · dashed line = monthly normal

Annual Precipitation Per Year (1881–2026)

Blue = above average · tan = below average · gold = 2026 (partial)
Since 1881, annual totals have trended +0.23" per decade, about +3.4" across the record.

Heavy Rain Days Per Year (≥ 1.0")

Compare year-to-year changes in days with heavy rainfall (≥ 1.0")

This Year — 2026

How Huron is tracking against normal, year to date

Daily High Temperature vs Normal

Above normal Below normal

148 of 253 days with data were above the 1991–2020 normal high for their date.

Precipitation, Year to Date

16.68"
2026 YTD
Normal: 18.25"
-1.57"
1.35"
September so far
September normal: 2.43"
-1.08"
5
2026 heavy rain days
Days with ≥ 1.0"

Accumulation vs. Normal

Running total since Jan 1 against the normal pace for the same date · Huron is 1.57" behind the normal pace

Period Review — Sep 3 – Sep 10, 2026

Any window, evaluated against every other year on record — 8 days

Quick picks: Last 7 days Last 30 days Last 90 days This month
Seasons: Spring (Mar–May) Summer (Jun–Aug) Fall (Sep–Nov)
74.1°F
Average temperature
14th-warmest of 146
+7.1°
vs. average
Normal: 67.0°F (1991–2020)
1.24"
Precipitation
23rd-wettest of 146
+0.65"
vs. average
Normal: 0.59" · 210% of normal

Average Temperature by Year — Sep 3 – Sep 10

1881–2026 · 2026 highlighted · trend +0.21° per decade (warming since 1881)

Precipitation by Year — Sep 3 – Sep 10

1881–2026 · 2026 highlighted

Warmest Sep 3 – Sep 10 on Record

# Year Avg Temp
1 1931 80.4°F
2 1978 80.4°F
3 2005 77.6°F
4 1990 77.1°F
5 2013 77.1°F
6 1897 76.7°F
7 1933 76.6°F
8 2002 75.8°F
9 1913 75.6°F
10 1927 75.3°F

Coolest Sep 3 – Sep 10 on Record

# Year Avg Temp
1 1885 52.3°F
2 1929 54.1°F
3 1965 54.4°F
4 1898 56.2°F
5 1962 56.5°F
6 1956 56.6°F
7 1986 57.1°F
8 2008 57.2°F
9 1918 57.3°F
10 1943 57.4°F

Wettest Sep 3 – Sep 10 on Record

# Year Total
1 2005 3.77"
2 1948 2.57"
3 1901 2.46"
4 1938 2.19"
5 1921 2.01"
6 1946 2.00"
7 1949 2.00"
8 1900 1.93"
9 2004 1.89"
10 1992 1.64"

Driest Sep 3 – Sep 10 on Record

# Year Total
1 2021 0.00"
2 2018 0.00"
3 2017 0.00"
4 2013 0.00"
5 2006 0.00"
6 1998 0.00"
7 1988 0.00"
8 1974 0.00"
9 1973 0.00"
10 1972 0.00"
About this data. Pick any start and end date and this becomes the same kind of review as the Month and Fall tabs, just for exactly the window you asked for — the generalized version of the same engine, evaluated across every year on record. Average temperature is the mean of each day's (high + low) / 2; precipitation is the sum of daily totals. A year missing more than about a fifth of the window's days is excluded from the temperature ranking; any missing day excludes a year from the precipitation ranking, since an unreported day is unreported rain. Ranges that cross from December into January aren't supported yet. Normals are the 1991–2020 mean for the same window.
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