Kalamazoo, MI

Michigan · Records since 1887–2026

☀️ 76°F
Currently in Kalamazoo
As of 2:00 PM

Records for September 11

🔥 Record High

96°F

September 11, 1952

+20° from 76° normal

❄ Record Low

34°F

September 11, 1917

-20° from 54° normal
🌞 Normal high: 76°F 🌑 Normal low: 54°F 1991–2020 normals

All-Time Records — Kalamazoo

🔥
109°F
Hottest Day Ever
Jul 13, 1936
❄
-22°F
Coldest Day Ever
Feb 5, 1918
🌧
5.64"
Wettest Day Ever
Jun 26, 1978
☃
18.0"
Most Snow in One Day
Jan 26, 1978

First & Last Dates — Kalamazoo

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)
207 days
Longest growing season
1894
119 days
Shortest growing season
1916
168 days
Normal growing season
1991–2020 average

Top 10 Record Highs — September 11

# Temp Date
🏆 96°F September 11, 1952
2 95°F September 11, 1978
3 95°F September 11, 1931
4 95°F September 11, 1897
5 93°F September 11, 1983
6 92°F September 11, 2019
7 91°F September 11, 2013
8 91°F September 11, 1964
9 90°F September 11, 2005
10 90°F September 11, 1908

Top 5 Record Lows — September 11

# Temp Date
🥶 34°F September 11, 1917
2 35°F September 11, 1943
3 37°F September 11, 1929
4 39°F September 11, 1898
5 40°F September 11, 1958
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 1887–2026. Climate normals represent the 1991–2020 average.

Heat Wave Summary — Kalamazoo

threshold: 91°F (90th percentile of historical Jun–Aug highs)
4.5
Avg heat wave length
days (historical)
96°
Avg peak temp
during heat waves
7
Dangerous nights 2026
Overnights ≥ 70°F
1
Heat waves 2026
so far

Days ≥ 90°F Per Year

1887–2026
9
2026 so far
17
Avg/year 1970–2025
15
Avg/year (last 10 complete)
50
Most in a year (1934)

Average Daily High by Decade

Full year · complete decades only

Longest Heat Waves — Kalamazoo

# Dates Days Peak Avg High Avg Overnight Low
🏆 Jul 17, 1964 – Jul 29, 1964 13 95°F (Jul 24) 93°F 68°F
2 Jul 7, 1936 – Jul 18, 1936 12 109°F (Jul 13) 102°F 68°F
3 Aug 25, 1953 – Sep 4, 1953 11 100°F (Sep 1) 97°F 64°F
4 Jun 24, 1901 – Jul 4, 1901 11 97°F (Jul 4) 94°F 77°F
5 Jul 22, 1916 – Jul 31, 1916 10 103°F (Jul 29) 98°F 69°F
6 Jun 25, 1931 – Jul 3, 1931 9 101°F (Jul 1) 96°F 71°F
7 Jun 28, 1949 – Jul 6, 1949 9 96°F (Jul 2) 94°F 69°F
8 Jul 20, 1918 – Jul 28, 1918 9 95°F (Jul 28) 93°F 66°F
9 Jul 18, 1934 – Jul 25, 1934 8 106°F (Jul 21) 102°F 70°F
10 Aug 22, 1948 – Aug 29, 1948 8 101°F (Aug 24) 97°F 68°F

Heat Waves Per Year

Warm Summer Nights (Jun–Aug)

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

47
2026 total
above-normal nights
44.9
Avg / summer
1970–2020
71
Most in a summer
1887

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 (1887–2026)

Blue = above average · tan = below average · gold = 2026 (partial)
Since 1887, annual totals have trended +0.18" per decade, about +2.5" 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 Kalamazoo is tracking against normal, year to date

Daily High Temperature vs Normal

Above normal Below normal

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

Precipitation, Year to Date

25.58"
2026 YTD
Normal: 23.15"
+2.43"
0.94"
September so far
September normal: 3.27"
-2.33"
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 · Kalamazoo is 2.43" ahead of the normal pace

Period Review — Aug 11 – Sep 10, 2026

Any window, evaluated against every other year on record — 31 days

Quick picks: Last 7 days Last 30 days Last 90 days This month
Seasons: Spring (Mar–May) Summer (Jun–Aug) Fall (Sep–Nov)
71.7°F
Average temperature
30th-warmest of 130
+2.1°
vs. average
Normal: 69.6°F (1991–2020)
1.83"
Precipitation
30th-driest of 121
-1.79"
vs. average
Normal: 3.62" · 51% of normal

Average Temperature by Year — Aug 11 – Sep 10

1887–2026 · 2026 highlighted · trend +0.09° per decade (warming since 1887)

Precipitation by Year — Aug 11 – Sep 10

1890–2026 · 2026 highlighted · trend +0.02" per decade (wetter since 1890)

Warmest Aug 11 – Sep 10 on Record

# Year Avg Temp
1 1947 78.0°F
2 1959 77.7°F
3 1900 74.9°F
4 1983 74.9°F
5 1922 74.8°F
6 1937 74.1°F
7 1978 73.8°F
8 1936 73.7°F
9 1960 73.6°F
10 1948 73.5°F

Coolest Aug 11 – Sep 10 on Record

# Year Avg Temp
1 1924 63.9°F
2 1915 64.0°F
3 1917 65.1°F
4 2025 65.2°F
5 1935 65.4°F
6 1986 65.5°F
7 1891 65.5°F
8 1890 65.6°F
9 1914 65.6°F
10 1902 65.7°F

Wettest Aug 11 – Sep 10 on Record

# Year Total
1 1975 10.48"
2 2001 8.15"
3 2016 8.14"
4 1915 7.86"
5 1896 7.23"
6 1914 6.85"
7 2007 6.78"
8 1940 6.70"
9 1987 6.28"
10 1918 6.11"

Driest Aug 11 – Sep 10 on Record

# Year Total
1 1933 0.12"
2 1960 0.21"
3 1953 0.38"
4 1929 0.41"
5 1963 0.52"
6 1930 0.74"
7 1893 0.75"
8 1927 0.88"
9 1952 0.94"
10 1913 1.00"
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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