Georgetown, DE

Delaware · Records since 1945–2026

🌤️ 78°F
Currently in Georgetown
As of 2:45 PM EDT

Records for September 7

🔥 Record High

97°F

September 7, 2023

+15° from 82° normal

❄ Record Low

40°F

September 7, 1984

-24° from 64° normal
🌞 Normal high: 82°F 🌑 Normal low: 64°F 1991–2020 normals

All-Time Records — Georgetown

🔥
104°F
Hottest Day Ever
Jul 23, 2011
❄
-13°F
Coldest Day Ever
Jan 28, 1987
🌧
7.59"
Wettest Day Ever
Jun 25, 2006
☃
14.0"
Most Snow in One Day
Jan 30, 1966

Top 10 Record Highs — September 7

# Temp Date
🏆 97°F September 7, 2023
2 94°F September 7, 1983
3 94°F September 7, 1954
4 91°F September 7, 2015
5 91°F September 7, 1998
6 91°F September 7, 1995
7 91°F September 7, 1985
8 90°F September 7, 2018
9 90°F September 7, 2010
10 90°F September 7, 2007

Top 5 Record Lows — September 7

# Temp Date
🥶 40°F September 7, 1984
2 41°F September 7, 1976
3 45°F September 7, 1988
4 45°F September 7, 1962
5 46°F September 7, 1966
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 1945–2026. Climate normals represent the 1991–2020 average.

Heat Wave Summary — Georgetown

threshold: 93°F (90th percentile of historical Jun–Aug highs)
4.2
Avg heat wave length
days (historical)
97°
Avg peak temp
during heat waves
43
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

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

Days ≥ 90°F Per Year

1945–2026
34
2026 so far
29
Avg/year 1970–2025
37
Avg/year (last 10 complete)
57
Most in a year (2010)

Average Daily High by Decade

Full year · complete decades only

Longest Heat Waves — Georgetown

# Dates Days Peak Avg High Avg Overnight Low
🏆 Jul 13, 1952 – Jul 24, 1952 12 101°F (Jul 23) 96°F 69°F
2 Jun 28, 2012 – Jul 8, 2012 11 103°F (Jul 7) 98°F 73°F
3 Jul 7, 1993 – Jul 15, 1993 9 101°F (Jul 12) 96°F 73°F
4 Aug 6, 1977 – Aug 14, 1977 9 98°F (Aug 8) 96°F 72°F
5 Jul 28, 2002 – Aug 5, 2002 9 97°F (Jul 29) 95°F 73°F
6 Aug 12, 2002 – Aug 19, 2002 8 100°F (Aug 13) 96°F 74°F
7 Aug 28, 1953 – Sep 3, 1953 7 100°F (Aug 31) 97°F 70°F
8 Jul 16, 2019 – Jul 22, 2019 7 100°F (Jul 17) 98°F 76°F
9 Jul 25, 1949 – Jul 31, 1949 7 99°F (Jul 28) 96°F 71°F
10 Jul 17, 1980 – Jul 23, 1980 7 98°F (Jul 17) 96°F 72°F

Heat Waves Per Year

Warm Summer Nights (Jun–Aug)

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

46
2026 total
above-normal nights
33.0
Avg / summer
1970–2020
63
Most in a summer
2020

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

26.25"
2026 YTD
Normal: 29.53"
-3.28"
1.37"
September so far
September normal: 4.54"
-3.17"
10
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 · Georgetown is 3.28" behind the normal pace

Monthly Precipitation — Last 24 Months

Blue = actual · dashed line = monthly normal

Annual Precipitation Per Year (1945–2026)

Blue = above average · tan = below average · gold = 2026 (partial)
Since 1945, annual totals have trended +0.39" per decade, about +3.1" 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

78.0°F

Average temperature · August 2026

37th-warmest month on record

10th-warmest August of 80 on record

+1.9° vs. 76.0° average (1991–2020)
82.0°F
Warmest month ever
July 2020
80.5°F
Warmest August ever
2009
6
Days ≥ 90°F
in August
102°F
Hottest of 2026
Jul 3

Longest 90°F Streak in August

5 consecutive days with highs of at least 90°F (Aug 6–10, 2026, peaking at 93°F)

The longest August streak since 2022 (4 years). The August record is 12 days, set in 1980.

Average August Temperature by Year

1945–2026 · 2026 highlighted · trend +0.33° per decade (warming since 1945)

Precipitation — August 2026

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

5.73"
Total precipitation
August 2026
+1.18"
vs. average
Normal: 4.55" · 126% of normal
30th-wettest
August rank
of 79 on record
14.15"
Wettest August ever
1967 · driest 0.14" (1995)

August Precipitation by Year

1947–2026 · 2026 highlighted · trend -0.20" per decade (drier since 1947)

Wettest Augusts on Record

# Year Total
1 1967 14.15"
2 1958 12.17"
3 1985 11.71"
4 2001 11.60"
5 1989 10.77"
6 1973 9.87"
7 1953 9.33"
8 1955 9.30"
9 1969 8.73"
10 1978 8.63"

Driest Augusts on Record

# Year Total
1 1995 0.14"
2 2008 0.52"
3 1987 0.78"
4 2006 0.96"
5 1966 1.06"
6 1968 1.49"
7 1950 1.54"
8 1963 1.62"
9 1956 1.72"
10 2005 1.98"

Warmest Augusts on Record

# Year Avg Temp
1 2009 80.5°F
2 2018 79.6°F
3 2022 79.2°F
4 2020 78.7°F
5 2016 78.6°F
6 2005 78.4°F
7 2002 78.3°F
8 1955 78.0°F
9 1959 78.0°F
10 2026 78.0°F

Warmest Months on Record (Any Month)

# Month Avg Temp
1 July 2020 82.0°F
2 July 2012 81.6°F
3 July 2011 81.1°F
4 July 2019 81.1°F
5 July 1955 80.6°F
6 August 2009 80.5°F
7 July 2016 80.1°F
8 July 2025 80.1°F
9 July 2010 80.0°F
10 July 2022 80.0°F

Nearby Stations — August 2026

How the same month ranked at the closest reporting stations

Station Avg Temp August Rank
Georgetown, DE 78.0°F 10th of 80
Salisbury, MD 78.2°F 11th of 119
Wallops Island, VA 78.9°F 4th of 60
Annapolis, MD 78.6°F 24th of 122
Atlantic City, NJ 77.2°F 5th of 84
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 952 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 79 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 1
so far
 Sep 7 Jul 20, 1969 Oct 9, 2007 -0.2 d/decade
Last 80°F day
The last genuinely warm afternoon
 Sep 6
so far
 Oct 19 Sep 21, 1976 Nov 16, 1993 +0.8 d/decade
First high below 50°F
The first afternoon that stays cold
 not yet Nov 13 Oct 11, 1979 Dec 5, 2009 +1.1 d/decade
First 32°F freeze
Growing season over
 not yet Nov 2 Sep 21, 1956 Nov 17, 2020 +3.7 d/decade
First 28°F hard freeze
Cold enough to end tender growth
 not yet Nov 15 Oct 4, 1974 Dec 7, 2009 +3.2 d/decade
First 20°F night
Winter cold arriving
 not yet Dec 12 Nov 6, 1991 Dec 31, 1994 +1.7 d/decade
First measurable snow
0.1" or more in a day
 not yet — Oct 11, 1979 Dec 26, 1970

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 1947 · trending +3.7 days later per decade

205
Normal length
1991–2020 average
230
Longest on record
2010
126
Shortest on record
1956

Growing Season Length by Year

Days between the last spring freeze and the first fall freeze · trending +7.0 days longer per decade

Fall Average Temperature by Year

1947–2025 · 2026 highlighted · trend +0.35° per decade (warming since 1947)

Fall Precipitation by Year

1946–2025 · 2026 highlighted · trend +0.05" per decade (wetter since 1946)

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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