Annapolis, MD

Maryland · Records since 1894–2026

☀️ 81°F
Currently in Annapolis
As of 2:15 PM EDT

Records for September 7

🔥 Record High

96°F

September 7, 1998

+16° from 80° normal

❄ Record Low

45°F

September 7, 1962

-23° from 68° normal
🌞 Normal high: 80°F 🌑 Normal low: 68°F 1991–2020 normals

All-Time Records — Annapolis

🔥
106°F
Hottest Day Ever
Aug 6, 1918
❄
-8°F
Coldest Day Ever
Jan 22, 1984
🌧
9.20"
Wettest Day Ever
Aug 12, 1928
☃
24.0"
Most Snow in One Day
Jan 28, 1922

Top 10 Record Highs — September 7

# Temp Date
🏆 96°F September 7, 1998
2 96°F September 7, 1985
3 95°F September 7, 1983
4 93°F September 7, 1901
5 92°F September 7, 2023
6 91°F September 7, 1978
7 91°F September 7, 1925
8 91°F September 7, 1922
9 91°F September 7, 1900
10 91°F September 7, 1899

Top 5 Record Lows — September 7

# Temp Date
🥶 45°F September 7, 1962
2 45°F September 7, 1924
3 48°F September 7, 1988
4 51°F September 7, 1984
5 51°F September 7, 1976
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 1894–2026. Climate normals represent the 1991–2020 average.

Heat Wave Summary — Annapolis

threshold: 92°F (90th percentile of historical Jun–Aug highs)
4.4
Avg heat wave length
days (historical)
97°
Avg peak temp
during heat waves
68
Dangerous nights 2026
Overnights ≥ 70°F
1
Heat waves 2026
so far

2026 Daily High Temperature vs Normal

Year to date
Above normal Below normal

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

Days ≥ 90°F Per Year

1894–2026
20
2026 so far
21
Avg/year 1970–2025
20
Avg/year (last 10 complete)
63
Most in a year (1988)

Average Daily High by Decade

Full year · complete decades only

Longest Heat Waves — Annapolis

# Dates Days Peak Avg High Avg Overnight Low
🏆 Jul 29, 1988 – Aug 18, 1988 21 102°F (Aug 15) 96°F 70°F
2 Jun 23, 1901 – Jul 7, 1901 15 105°F (Jul 2) 97°F 73°F
3 Jul 23, 1995 – Aug 6, 1995 15 99°F (Aug 4) 96°F 74°F
4 Jul 30, 1980 – Aug 12, 1980 14 98°F (Aug 8) 94°F 72°F
5 Jul 4, 1993 – Jul 14, 1993 11 101°F (Jul 10) 97°F 75°F
6 Jul 9, 1992 – Jul 18, 1992 10 99°F (Jul 14) 95°F 72°F
7 Jul 10, 1988 – Jul 19, 1988 10 98°F (Jul 10) 96°F 70°F
8 Jul 18, 1930 – Jul 25, 1930 8 105°F (Jul 21) 97°F 74°F
9 Jul 17, 1991 – Jul 24, 1991 8 103°F (Jul 23) 99°F 73°F
10 Jul 20, 1987 – Jul 27, 1987 8 101°F (Jul 21) 98°F 72°F

Heat Waves Per Year

Warm Summer Nights (Jun–Aug)

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

50
2026 total
above-normal nights
31.7
Avg / summer
1970–2020
73
Most in a summer
2019

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

17.58"
2026 YTD
Normal: 29.89"
-12.31"
0.33"
September so far
September normal: 5.14"
-4.81"
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 · Annapolis is 12.31" behind the normal pace

Monthly Precipitation — Last 24 Months

Blue = actual · dashed line = monthly normal

Annual Precipitation Per Year (1894–2026)

Blue = above average · tan = below average · gold = 2026 (partial)
Since 1894, annual totals have trended +0.35" per decade, about +4.6" 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

78.6°F

Average temperature · August 2026

69th-warmest month on record

24th-warmest August of 122 on record

+1.0° vs. 77.6° average (1991–2020)
83.5°F
Warmest month ever
July 2019
81.0°F
Warmest August ever
2018
4
Days ≥ 90°F
in August
97°F
Hottest of 2026
Jul 3

Longest 90°F Streak in August

2 consecutive days with highs of at least 90°F (Aug 6–7, 2026, peaking at 90°F)

The longest August streak since 2024 (2 years). The August record is 18 days, set in 1988.

Average August Temperature by Year

1896–2026 · 2026 highlighted · trend +0.13° per decade (warming since 1896)

Precipitation — August 2026

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

4.35"
Total precipitation
August 2026
-0.24"
vs. average
Normal: 4.59" · 95% of normal
52nd-wettest
August rank
of 123 on record
14.30"
Wettest August ever
1928 · driest 0.19" (1943)

August Precipitation by Year

1897–2026 · 2026 highlighted · trend -0.03" per decade (drier since 1897)

Wettest Augusts on Record

# Year Total
1 1928 14.30"
2 1911 14.05"
3 1971 13.26"
4 1937 12.07"
5 1933 11.66"
6 1967 10.94"
7 1955 10.72"
8 2011 10.47"
9 1901 10.40"
10 1994 9.71"

Driest Augusts on Record

# Year Total
1 1943 0.19"
2 1930 0.21"
3 1962 0.68"
4 2025 0.86"
5 1966 0.89"
6 2006 0.91"
7 1912 1.02"
8 1900 1.07"
9 1982 1.14"
10 1938 1.16"

Warmest Augusts on Record

# Year Avg Temp
1 2018 81.0°F
2 1900 80.9°F
3 2019 80.7°F
4 2016 80.7°F
5 1898 80.3°F
6 2012 79.9°F
7 1988 79.4°F
8 1998 79.4°F
9 1980 79.4°F
10 2001 79.3°F

Warmest Months on Record (Any Month)

# Month Avg Temp
1 July 2019 83.5°F
2 July 1901 83.0°F
3 July 2012 83.0°F
4 July 1993 82.7°F
5 July 2011 82.0°F
6 July 1999 81.7°F
7 July 1955 81.5°F
8 July 2020 81.5°F
9 July 1994 81.3°F
10 July 1995 81.0°F

Nearby Stations — August 2026

How the same month ranked at the closest reporting stations

Station Avg Temp August Rank
Annapolis, MD 78.6°F 24th of 122
Baltimore Downtown, MD 79.9°F 26th of 73
Baltimore, MD 77.5°F 33rd of 155
Washington, DC 80.1°F 17th of 155
Sterling-Dulles Airport, VA 77.5°F 13th of 65
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 1,333 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 123 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
 Sep 3
so far
 Sep 3 Jun 18, 1946 Oct 9, 2007 -0.2 d/decade
Last 80°F day
The last genuinely warm afternoon
 Sep 6
so far
 Oct 8 Sep 11, 2014 Nov 15, 1993 +0.1 d/decade
First high below 50°F
The first afternoon that stays cold
 not yet Nov 11 Oct 16, 2009 Dec 12, 1998 +0.3 d/decade
First 32°F freeze
Growing season over
 not yet Nov 17 Oct 1, 1899 Dec 22, 2001 +1.0 d/decade
First 28°F hard freeze
Cold enough to end tender growth
 not yet Nov 26 Oct 12, 1987 Dec 26, 2001 +0.5 d/decade
First 20°F night
Winter cold arriving
 not yet Dec 21 Nov 14, 1986 Dec 29, 1920 +0.3 d/decade
First measurable snow
0.1" or more in a day
 not yet — Nov 6, 1953 Dec 31, 1946

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 1896 · trending +1.0 days later per decade

233
Normal length
1991–2020 average
275
Longest on record
1946
169
Shortest on record
1906

Growing Season Length by Year

Days between the last spring freeze and the first fall freeze · trending +2.4 days longer per decade

Fall Average Temperature by Year

1897–2025 · 2026 highlighted · trend +0.15° per decade (warming since 1897)

Fall Precipitation by Year

1897–2025 · 2026 highlighted · trend +0.22" per decade (wetter since 1897)

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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