Marquette County, MI

Michigan · Records since 1961–2026

🌙 55°F
Currently in Marquette County
As of 10:15 PM

Records for September 26

🔥 Record High

79°F

September 26, 2008

+17° from 62° normal

❄ Record Low

25°F

September 26, 1965

-18° from 43° normal
🌞 Normal high: 62°F 🌑 Normal low: 43°F 1991–2020 normals

All-Time Records — Marquette County

🔥
99°F
Hottest Day Ever
Jul 28, 1988
❄
-34°F
Coldest Day Ever
Feb 17, 1979
🌧
4.29"
Wettest Day Ever
Sep 4, 2007
☃
26.2"
Most Snow in One Day
Mar 14, 1997

First & Last Dates — Marquette County

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)
152 days
Longest growing season
2001
77 days
Shortest growing season
1972
125 days
Normal growing season
1991–2020 average

Top 10 Record Highs — September 26

# Temp Date
🏆 79°F September 26, 2008
2 79°F September 26, 1983
3 77°F September 26, 2014
4 77°F September 26, 2004
5 77°F September 26, 1999
6 76°F September 26, 2024
7 75°F September 26, 2015
8 73°F September 26, 1997
9 73°F September 26, 1979
10 73°F September 26, 1978

Top 5 Record Lows — September 26

# Temp Date
🥶 25°F September 26, 1965
2 26°F September 26, 1989
3 29°F September 26, 1984
4 30°F September 26, 1966
5 31°F September 26, 1991
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 1961–2026. Climate normals represent the 1991–2020 average.

Heat Wave Summary — Marquette County

threshold: 85°F (90th percentile of historical Jun–Aug highs)
3.9
Avg heat wave length
days (historical)
91°
Avg peak temp
during heat waves
2
Dangerous nights 2026
Overnights ≥ 70°F
1
Heat waves 2026
so far

Days ≥ 90°F Per Year

1962–2026
2
2026 so far
4
Avg/year 1970–2025
3
Avg/year (last 10 complete)
13
Most in a year (1988)

Average Daily High by Decade

Full year · complete decades only

Longest Heat Waves — Marquette County

# Dates Days Peak Avg High Avg Overnight Low
🏆 Jun 15, 1995 – Jun 24, 1995 10 96°F (Jun 18) 90°F 64°F
2 Jul 11, 1983 – Jul 20, 1983 10 95°F (Jul 14) 89°F 64°F
3 Jul 16, 2011 – Jul 22, 2011 7 94°F (Jul 17) 89°F 65°F
4 Aug 25, 1991 – Aug 30, 1991 6 93°F (Aug 27) 90°F 66°F
5 Jul 13, 2013 – Jul 18, 2013 6 92°F (Jul 16) 88°F 66°F
6 Jun 10, 2007 – Jun 15, 2007 6 91°F (Jun 15) 88°F 55°F
7 Jun 29, 2020 – Jul 4, 2020 6 89°F (Jul 4) 87°F 62°F
8 Jun 27, 1963 – Jul 1, 1963 5 99°F (Jun 30) 91°F 59°F
9 Jul 4, 1988 – Jul 8, 1988 5 98°F (Jul 6) 94°F 66°F
10 Aug 4, 2001 – Aug 8, 2001 5 96°F (Aug 6) 91°F 66°F

Heat Waves Per Year

Warm Summer Nights (Jun–Aug)

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

43
2026 total
above-normal nights
41.5
Avg / summer
1970–2020
62
Most in a summer
1995

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 (1961–2026)

Blue = above average · tan = below average · gold = 2026 (partial)
Since 1961, annual totals have trended +1.45" per decade, about +9.3" 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 Marquette County is tracking against normal, year to date

Daily High Temperature vs Normal

Above normal Below normal

144 of 267 days with data were above the 1991–2020 normal high for their date.

Precipitation, Year to Date

26.65"
2026 YTD
Normal: 26.32"
+0.33"
1.13"
September so far
September normal: 3.96"
-2.83"
7
2026 heavy rain days
Days with ≥ 1.0"

Accumulation vs. Normal

Running total since Jan 1 against the normal pace for the same date · Marquette County is 0.33" ahead of the normal pace

Period Review — Jun 27 – Sep 25, 2026

Any window, evaluated against every other year on record — 91 days

Quick picks: Last 7 days Last 30 days Last 90 days This month
Seasons: Spring (Mar–May) Summer (Jun–Aug) Fall (Sep–Nov)
64.9°F
Average temperature
4th-warmest of 65
+2.3°
vs. average
Normal: 62.6°F (1991–2020)

Average Temperature by Year — Jun 27 – Sep 25

1962–2026 · 2026 highlighted · trend +0.52° per decade (warming since 1962)

Precipitation by Year — Jun 27 – Sep 25

1962–2025 · 2026 highlighted · trend -0.13" per decade (drier since 1962)

Warmest Jun 27 – Sep 25 on Record

# Year Avg Temp
1 2002 66.0°F
2 2005 65.4°F
3 1983 65.0°F
4 2026 64.9°F
5 2011 64.3°F
6 2021 64.2°F
7 2015 64.2°F
8 2018 64.2°F
9 2016 64.1°F
10 2022 64.0°F

Coolest Jun 27 – Sep 25 on Record

# Year Avg Temp
1 1992 57.6°F
2 1965 57.9°F
3 1962 58.6°F
4 1972 59.6°F
5 1974 59.6°F
6 1986 60.0°F
7 1982 60.2°F
8 2000 60.3°F
9 1971 60.4°F
10 1967 60.4°F
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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