Brainerd, MN

Minnesota · Records since 1898–2026

Records for September 7

🔥 Record High

92°F

September 7, 2003

+18° from 74° normal

❄ Record Low

34°F

September 7, 2025

-16° from 50° normal
🌞 Normal high: 74°F 🌑 Normal low: 50°F 1991–2020 normals

All-Time Records — Brainerd

🔥
106°F
Hottest Day Ever
Jul 10, 1936
❄
-54°F
Coldest Day Ever
Feb 2, 1996
🌧
6.38"
Wettest Day Ever
Jul 11, 2016
☃
24.0"
Most Snow in One Day
Mar 4, 1985

Top 10 Record Highs — September 7

# Temp Date
🏆 92°F September 7, 2003
2 91°F September 7, 2002
3 91°F September 7, 1960
4 88°F September 7, 2013
5 88°F September 7, 1971
6 86°F September 7, 1976
7 86°F September 7, 1970
8 85°F September 7, 2006
9 85°F September 7, 1945
10 85°F September 7, 1913

Top 5 Record Lows — September 7

# Temp Date
🥶 34°F September 7, 2025
2 35°F September 7, 1986
3 36°F September 7, 1956
4 37°F September 7, 1932
5 38°F September 7, 1953
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 1898–2026. Climate normals represent the 1991–2020 average.

Heat Wave Summary — Brainerd

threshold: 88°F (90th percentile of historical Jun–Aug highs)
4.2
Avg heat wave length
days (historical)
94°
Avg peak temp
during heat waves
3
Dangerous nights 2026
Overnights ≥ 70°F
2
Heat waves 2026
so far

2026 Daily High Temperature vs Normal

Year to date
Above normal Below normal

131 of 249 days with data were above the 1991–2020 normal high for their date.

Days ≥ 90°F Per Year

1899–2026
8
2026 so far
8
Avg/year 1970–2025
8
Avg/year (last 10 complete)
31
Most in a year (1988)

Average Daily High by Decade

Full year · complete decades only

Longest Heat Waves — Brainerd

# Dates Days Peak Avg High Avg Overnight Low
🏆 Jul 6, 1936 – Jul 18, 1936 13 106°F (Jul 10) 98°F 70°F
2 Jul 9, 2005 – Jul 17, 2005 9 96°F (Jul 16) 92°F 67°F
3 Jun 3, 2021 – Jun 10, 2021 8 100°F (Jun 4) 95°F 64°F
4 Jul 18, 1940 – Jul 25, 1940 8 98°F (Jul 22) 92°F 66°F
5 Jul 22, 1941 – Jul 29, 1941 8 97°F (Jul 22) 92°F 70°F
6 Jun 15, 1995 – Jun 22, 1995 8 96°F (Jun 17) 93°F 65°F
7 Jul 3, 1988 – Jul 9, 1988 7 102°F (Jul 6) 95°F 63°F
8 Jul 26, 1988 – Aug 1, 1988 7 101°F (Jul 27) 96°F 63°F
9 Jul 3, 1948 – Jul 9, 1948 7 97°F (Jul 5) 92°F 64°F
10 Aug 1, 1930 – Aug 7, 1930 7 96°F (Aug 3) 94°F 63°F

Heat Waves Per Year

Warm Summer Nights (Jun–Aug)

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

54
2026 total
above-normal nights
40.2
Avg / summer
1970–2020
63
Most in a summer
1935

Above-Normal Summer Nights Per Year

Average June–August Low by Decade

Overnight lows · complete decades only

Precipitation

Actual vs. 1991–2020 full-month and full-season normals

9.19"
2026 YTD
Normal: 18.60"
-9.41"
0.01"
September so far
September normal: 2.60"
-2.59"
1
2026 heavy rain days
Days with ≥ 1.0"

2026 Accumulation vs. Normal

Running total since Jan 1 against the normal pace for the same date · Brainerd is 9.41" behind the normal pace

Monthly Precipitation — Last 24 Months

Blue = actual · dashed line = monthly normal

Annual Precipitation Per Year (1887–2026)

Blue = above average · tan = below average · gold = 2026 (partial)
Since 1887, annual totals have trended +0.57" per decade, about +7.9" across the record.

Heavy Rain Days Per Year (≥ 1.0")

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

Month in Review — August 2026

67.9°F

Average temperature · August 2026

127th-warmest month on record

40th-warmest August of 108 on record

+0.8° vs. 67.1° average (1991–2020)
75.9°F
Warmest month ever
July 1936
73.8°F
Warmest August ever
1900
97°F
Hottest of 2026
Jul 26

95°F Milestone

Brainerd reached 97°F in 2026 — the first time it hit 95°F since 2023 (3 years).

Average August Temperature by Year

1900–2026 · 2026 highlighted · trend +0.15° per decade (warming since 1900)

Precipitation — August 2026

Month total against the 1991–2020 average and every other August on record

2.15"
Total precipitation
August 2026
-1.01"
vs. average
Normal: 3.16" · 68% of normal
41st-driest
August rank
of 118 on record
9.67"
Wettest August ever
1953 · driest 0.20" (1915)

August Precipitation by Year

1887–2026 · 2026 highlighted · trend -0.03" per decade (drier since 1887)

Wettest Augusts on Record

# Year Total
1 1953 9.67"
2 1899 9.66"
3 1944 7.78"
4 1900 7.73"
5 2017 7.66"
6 1941 7.49"
7 1978 6.94"
8 1964 6.88"
9 1995 6.83"
10 1981 6.74"

Driest Augusts on Record

# Year Total
1 1915 0.20"
2 1969 0.30"
3 2003 0.36"
4 1970 0.41"
5 1950 0.63"
6 1976 0.66"
7 1996 0.69"
8 2008 0.72"
9 1887 0.87"
10 1930 0.96"

Warmest Augusts on Record

# Year Avg Temp
1 1900 73.8°F
2 1947 72.9°F
3 1937 72.5°F
4 1955 71.3°F
5 2021 71.3°F
6 1983 71.2°F
7 2010 71.2°F
8 1930 71.0°F
9 1938 71.0°F
10 2003 70.5°F

Warmest Months on Record (Any Month)

# Month Avg Temp
1 July 1936 75.9°F
2 July 1916 75.6°F
3 July 2006 75.3°F
4 July 2012 74.4°F
5 July 1935 74.2°F
6 July 2026 74.0°F
7 August 1900 73.8°F
8 July 2020 73.6°F
9 July 1955 73.4°F
10 July 1970 73.4°F

Nearby Stations — August 2026

How the same month ranked at the closest reporting stations

Station Avg Temp August Rank
Brainerd, MN 67.9°F 40th of 108
Saint Cloud, MN 69.7°F 39th of 130
Hibbing, MN 62.4°F 61st of 89
Duluth, MN 65.2°F 53rd of 153
Minneapolis-St Paul, MN 74.2°F 17th of 154
About this data. Monthly averages are the mean of daily average temperatures, computed from NOAA Threadex records via RCC ACIS. Months missing more than three days of observations are excluded from the rankings, so the in-progress month never appears. Rankings cover 1,278 complete months on record. Precipitation totals sum the daily reports for the month, with trace amounts counted as zero. A month missing any day of precipitation data is left out entirely (an unreported day is unreported rain), so the precipitation ranking covers 118 complete Augusts. Normals are the 1991–2020 mean for the same calendar month. Trend lines are a least-squares fit across every year shown.

Fall in Review — Fall 2026

September 1 – November 30, 2026

Fall 2026 is still under way. Season totals and rankings appear once November closes; the markers below update as they happen.

Summer to Winter — 2026

Each turning point of the season against its 1991–2020 normal date, with the earliest and latest on record

Marker 2026 Normal vs. normal Earliest Latest Drift
Last 90°F day
The final day of summer heat
 Jul 30
so far
 Aug 5 May 30, 2014 Sep 22, 1936 -1.3 d/decade
Last 80°F day
The last genuinely warm afternoon
 Sep 6
so far
 Sep 26 Aug 25, 1975 Oct 28, 1983 +1.0 d/decade
First high below 50°F
The first afternoon that stays cold
 not yet Oct 6 Sep 11, 1924 Nov 2, 1973 +0.5 d/decade
First 32°F freeze
Growing season over
 not yet Sep 26 Aug 6, 1917 Oct 18, 2013 +0.6 d/decade
First 28°F hard freeze
Cold enough to end tender growth
 not yet Oct 6 Sep 1, 1974 Oct 29, 1963 +0.9 d/decade
First 20°F night
Winter cold arriving
 not yet Oct 31 Sep 21, 1934 Nov 25, 2024 +0.8 d/decade
First measurable snow
0.1" or more in a day
 not yet — Sep 25, 1942 Dec 25, 1953 -0.6 d/decade

Drift is a least-squares fit across every year on record. Positive means the marker has been arriving later.

First Freeze by Year

The first 32°F night of each autumn since 1899 · trending +0.6 days later per decade

136
Normal length
1991–2020 average
165
Longest on record
2024
44
Shortest on record
1917

Growing Season Length by Year

Days between the last spring freeze and the first fall freeze · trending +1.4 days longer per decade

Fall Average Temperature by Year

1899–2025 · 2026 highlighted · trend +0.16° per decade (warming since 1899)

Fall Precipitation by Year

1899–2025 · 2026 highlighted · trend +0.12" per decade (wetter since 1899)

About this data. Fall is meteorological autumn, September 1 through November 30, the window NOAA uses for seasonal statistics. Seasonal temperature is the day-weighted mean of the three monthly means; precipitation is their sum, and a season missing any of the three months is left out of the rankings. Freeze, heat and snow markers come from daily NOAA Threadex observations via RCC ACIS: freezes and snow are the first occurrence on or after July 1, and the last 90°F and 80°F days are the final ones anywhere in the calendar year. Growing season counts the freeze-free days between the last spring 32°F and the first fall 32°F.
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