Annapolis, MD

Maryland · Records since 1894–2026

☁️ 71°F Feels like 77°
Currently in Annapolis
As of 6:45 AM EDT

Records for August 11

🔥 Record High

99°F

August 11, 1911

+15° from 84° normal

❄ Record Low

54°F

August 11, 1927

-17° from 71° normal
🌞 Normal high: 84°F 🌑 Normal low: 71°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 — August 11

# Temp Date
🏆 99°F August 11, 1911
2 96°F August 11, 1979
3 95°F August 11, 1905
4 94°F August 11, 2016
5 94°F August 11, 1992
6 94°F August 11, 1896
7 93°F August 11, 1988
8 93°F August 11, 1966
9 93°F August 11, 1949
10 93°F August 11, 1901

Top 5 Record Lows — August 11

# Temp Date
🥶 54°F August 11, 1927
2 57°F August 11, 1972
3 58°F August 11, 1962
4 59°F August 11, 1989
5 60°F August 11, 1930
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
47
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

100 of 222 days with data were above the 1991–2020 normal high for their date.


Days ≥ 90°F Per Year

1894–2026
17
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

38
2026 so far
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

15.73"
2026 YTD
Normal: 25.89"
-10.16"
2.83"
August so far
August normal: 4.27"
-1.44"
7.19"
Summer so far
Summer normal: 13.25"
-6.06"
1
2026 heavy rain days
Days with ≥ 1.0"

Monthly Precipitation — Last 24 Months

Blue = actual · dashed line = monthly normal

Annual Precipitation Per Year (1970–2026)

Blue = above average · tan = below average · gold = 2026 (partial)

Heavy Rain Days Per Year (≥ 1.0")

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

Month in Review — July 2026

79.6°F

Average temperature · July 2026

35th-warmest month on record

29th-warmest July of 119 on record

+0.2° vs. 79.4° average (1991–2020)
83.5°F
Warmest month ever
July 2019
83.5°F
Warmest July ever
2019
9
Days ≥ 90°F
in July
97°F
Hottest of 2026
Jul 3

Longest 90°F Streak in July

5 consecutive days with highs of at least 90°F (Jul 1–5, 2026, peaking at 97°F)

The longest July streak since 2022 (4 years). The July record is 15 days, set in 1988.


Average July Temperature by Year

1897–2026 · 2026 highlighted


Warmest Julys on Record

# Year Avg Temp
1 2019 83.5°F
2 1901 83.0°F
3 2012 83.0°F
4 1993 82.7°F
5 2011 82.0°F
6 1999 81.7°F
7 1955 81.5°F
8 2020 81.5°F
9 1994 81.3°F
10 1995 81.0°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 — July 2026

How the same month ranked at the closest reporting stations

Station Avg Temp July Rank
Annapolis, MD 79.6°F 29th of 119
Baltimore Downtown, MD 81.4°F 31st of 71
Baltimore, MD 78.9°F 47th of 154
Washington, DC 81.7°F 17th of 155
Sterling-Dulles Airport, VA 78.7°F 14th 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 1332 complete months on record.