Muskegon, MI

Michigan · Records since 1896–2026

☀️ 77°F
Currently in Muskegon
As of 2:30 PM

Records for September 11

🔥 Record High

88°F

September 11, 1952

+13° from 75° normal

❄ Record Low

34°F

September 11, 1943

-21° from 55° normal
🌞 Normal high: 75°F 🌑 Normal low: 55°F 1991–2020 normals

All-Time Records — Muskegon

🔥
99°F
Hottest Day Ever
Jul 6, 2012
❄
-30°F
Coldest Day Ever
Feb 11, 1899
🌧
5.08"
Wettest Day Ever
Jun 27, 1921
☃
22.0"
Most Snow in One Day
Jan 10, 1982

First & Last Dates — Muskegon

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)
212 days
Longest growing season
1928
92 days
Shortest growing season
1992
160 days
Normal growing season
1991–2020 average

Top 10 Record Highs — September 11

# Temp Date
🏆 88°F September 11, 1952
2 87°F September 11, 1906
3 86°F September 11, 2003
4 86°F September 11, 1900
5 85°F September 11, 2019
6 85°F September 11, 1936
7 84°F September 11, 2013
8 84°F September 11, 2005
9 83°F September 11, 1974
10 83°F September 11, 1963

Top 5 Record Lows — September 11

# Temp Date
🥶 34°F September 11, 1943
2 37°F September 11, 1995
3 38°F September 11, 1958
4 38°F September 11, 1898
5 39°F September 11, 1917
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 1896–2026. Climate normals represent the 1991–2020 average.

Heat Wave Summary — Muskegon

threshold: 86°F (90th percentile of historical Jun–Aug highs)
4.2
Avg heat wave length
days (historical)
91°
Avg peak temp
during heat waves
10
Dangerous nights 2026
Overnights ≥ 70°F
2
Heat waves 2026
so far

Days ≥ 90°F Per Year

1897–2026
2
2026 so far
5
Avg/year 1970–2025
6
Avg/year (last 10 complete)
20
Most in a year (1955)

Average Daily High by Decade

Full year · complete decades only

Longest Heat Waves — Muskegon

# Dates Days Peak Avg High Avg Overnight Low
🏆 Jun 30, 1911 – Jul 11, 1911 12 97°F (Jul 4) 91°F 71°F
2 Jun 28, 2020 – Jul 9, 2020 12 92°F (Jun 30) 90°F 68°F
3 Aug 25, 1953 – Sep 3, 1953 10 95°F (Sep 1) 91°F 68°F
4 Aug 3, 1900 – Aug 11, 1900 9 90°F (Aug 5) 89°F 72°F
5 Jul 1, 2012 – Jul 8, 2012 8 99°F (Jul 6) 92°F 72°F
6 Aug 17, 1947 – Aug 24, 1947 8 96°F (Aug 24) 92°F 70°F
7 Jul 24, 1916 – Jul 31, 1916 8 95°F (Jul 29) 91°F 71°F
8 Jun 28, 1949 – Jul 5, 1949 8 95°F (Jul 2) 91°F 67°F
9 Jul 28, 1988 – Aug 4, 1988 8 94°F (Aug 2) 90°F 72°F
10 Aug 15, 1955 – Aug 22, 1955 8 93°F (Aug 19) 89°F 63°F

Heat Waves Per Year

Warm Summer Nights (Jun–Aug)

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

45
2026 total
above-normal nights
37.9
Avg / summer
1970–2020
68
Most in a summer
2010

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 (1896–2026)

Blue = above average · tan = below average · gold = 2026 (partial)
Since 1896, annual totals have trended +0.68" per decade, about +8.8" 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 Muskegon is tracking against normal, year to date

Daily High Temperature vs Normal

Above normal Below normal

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

Precipitation, Year to Date

31.73"
2026 YTD
Normal: 23.73"
+8.00"
1.37"
September so far
September normal: 3.26"
-1.89"
9
2026 heavy rain days
Days with ≥ 1.0"

Accumulation vs. Normal

Running total since Jan 1 against the normal pace for the same date · Muskegon is 8.00" ahead of the normal pace

Period Review — Mar 1 – May 31, 2026

Any window, evaluated against every other year on record — 92 days

Quick picks: Last 7 days Last 30 days Last 90 days This month
Seasons: Spring (Mar–May) Summer (Jun–Aug) Fall (Sep–Nov)
47.9°F
Average temperature
14th-warmest of 128
+1.9°
vs. average
Normal: 46.0°F (1991–2020)
14.79"
Precipitation
4th-wettest of 120
+5.55"
vs. average
Normal: 9.24" · 160% of normal

Average Temperature by Year — Mar 1 – May 31

1897–2026 · 2026 highlighted · trend +0.32° per decade (warming since 1897)

Precipitation by Year — Mar 1 – May 31

1897–2026 · 2026 highlighted · trend +0.18" per decade (wetter since 1897)

Warmest Mar 1 – May 31 on Record

# Year Avg Temp
1 2012 53.1°F
2 2024 52.0°F
3 1977 50.7°F
4 2010 50.4°F
5 1991 49.9°F
6 1987 48.7°F
7 2023 48.7°F
8 1998 48.6°F
9 1903 48.5°F
10 2021 48.3°F

Coolest Mar 1 – May 31 on Record

# Year Avg Temp
1 1940 39.9°F
2 1947 40.2°F
3 1943 40.4°F
4 1926 40.4°F
5 1907 40.7°F
6 1917 40.7°F
7 1923 40.7°F
8 1950 40.8°F
9 1920 40.8°F
10 1934 40.9°F

Wettest Mar 1 – May 31 on Record

# Year Total
1 2004 16.17"
2 1976 14.91"
3 2020 14.89"
4 2026 14.79"
5 1921 13.66"
6 2000 13.53"
7 1947 13.27"
8 2013 13.25"
9 2006 13.02"
10 1948 12.76"

Driest Mar 1 – May 31 on Record

# Year Total
1 1930 2.06"
2 1910 3.24"
3 1962 3.76"
4 1934 3.78"
5 1958 4.06"
6 1935 4.10"
7 1939 4.18"
8 2021 4.24"
9 1906 4.73"
10 2005 4.79"
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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