Hartford, CT
Connecticut · Records since 1905–2026
Records for September 7
🔥 Record High
September 7, 2023
+16° from 79° normal❄ Record Low
September 7, 1984
-20° from 57° normalAll-Time Records — Hartford
Top 10 Record Highs — September 7
| # | Temp | Date |
|---|---|---|
| 🏆 | 95°F | September 7, 2023 |
| 2 | 93°F | September 7, 2015 |
| 3 | 93°F | September 7, 2007 |
| 4 | 92°F | September 7, 1945 |
| 5 | 91°F | September 7, 1983 |
| 6 | 90°F | September 7, 1943 |
| 7 | 90°F | September 7, 1919 |
| 8 | 89°F | September 7, 1995 |
| 9 | 88°F | September 7, 2010 |
| 10 | 87°F | September 7, 2012 |
Top 5 Record Lows — September 7
| # | Temp | Date |
|---|---|---|
| 🥶 | 37°F | September 7, 1984 |
| 2 | 37°F | September 7, 1962 |
| 3 | 40°F | September 7, 1988 |
| 4 | 43°F | September 7, 2000 |
| 5 | 46°F | September 7, 1978 |
Heat Wave Summary — Hartford
threshold: 91°F (90th percentile of historical Jun–Aug highs)2026 Daily High Temperature vs Normal
Year to date111 of 249 days with data were above the 1991–2020 normal high for their date.
Days ≥ 90°F Per Year
1905–2026Average Daily High by Decade
Full year · complete decades only
Longest Heat Waves — Hartford
| # | Dates | Days | Peak | Avg High | Avg Overnight Low |
|---|---|---|---|---|---|
| 🏆 | Aug 11, 2002 – Aug 19, 2002 | 9 | 99°F (Aug 14) | 96°F | 69°F |
| 2 | Aug 27, 1973 – Sep 4, 1973 | 9 | 98°F (Aug 30) | 94°F | 69°F |
| 3 | Jul 16, 1991 – Jul 23, 1991 | 8 | 101°F (Jul 21) | 97°F | 68°F |
| 4 | Jul 21, 2016 – Jul 28, 2016 | 8 | 99°F (Jul 22) | 95°F | 65°F |
| 5 | Aug 10, 1944 – Aug 17, 1944 | 8 | 98°F (Aug 11) | 96°F | 68°F |
| 6 | Jul 24, 1970 – Jul 31, 1970 | 8 | 96°F (Jul 28) | 93°F | 69°F |
| 7 | Aug 28, 1953 – Sep 3, 1953 | 7 | 101°F (Sep 2) | 97°F | 66°F |
| 8 | Jul 15, 1977 – Jul 21, 1977 | 7 | 101°F (Jul 21) | 96°F | 70°F |
| 9 | Jul 7, 1981 – Jul 13, 1981 | 7 | 97°F (Jul 8) | 94°F | 71°F |
| 10 | Aug 9, 1988 – Aug 15, 1988 | 7 | 97°F (Aug 13) | 95°F | 72°F |
Heat Waves Per Year
Warm Summer Nights (Jun–Aug)
Nights where the overnight low exceeded the 1991–2020 normal low
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
2026 Accumulation vs. Normal
Running total since Jan 1 against the normal pace for the same date · Hartford is 1.13" ahead of the normal pace
Monthly Precipitation — Last 24 Months
Blue = actual · dashed line = monthly normal
Annual Precipitation Per Year (1905–2026)
Blue = above average · tan = below average · gold = 2026 (partial)
Since 1905, annual totals have trended
+0.71" per decade,
about +8.5"
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
Average temperature · August 2026
98th-warmest month on record
30th-warmest August of 122 on record
+0.7° vs. 72.5° average (1991–2020)Longest 90°F Streak in August
4 consecutive days with highs of at least 90°F (Aug 6–9, 2026, peaking at 92°F)
The longest August streak since 2022 (4 years). The August record is 9 days, set in 2002.
100°F Milestone
Hartford reached 100°F in 2026 — the first time it hit 100°F since 2019 (7 years).
Average August Temperature by Year
1905–2026 · 2026 highlighted · trend +0.26° per decade (warming since 1905)
Precipitation — August 2026
Month total against the 1991–2020 average and every other August on record
August Precipitation by Year
1905–2026 · 2026 highlighted · trend +0.06" per decade (wetter since 1905)
Wettest Augusts on Record
| # | Year | Total |
|---|---|---|
| 1 | 1955 | 21.87" |
| 2 | 2011 | 11.67" |
| 3 | 2018 | 9.10" |
| 4 | 2021 | 8.80" |
| 5 | 1991 | 8.69" |
| 6 | 1990 | 8.32" |
| 7 | 1997 | 7.33" |
| 8 | 1937 | 7.14" |
| 9 | 1917 | 6.92" |
| 10 | 2013 | 6.88" |
Driest Augusts on Record
| # | Year | Total |
|---|---|---|
| 1 | 1981 | 0.54" |
| 2 | 1935 | 0.93" |
| 3 | 2007 | 0.98" |
| 4 | 1907 | 1.03" |
| 5 | 1965 | 1.09" |
| 6 | 1956 | 1.13" |
| 7 | 1943 | 1.18" |
| 8 | 1957 | 1.27" |
| 9 | 1921 | 1.29" |
| 10 | 1984 | 1.32" |
Warmest Augusts on Record
| # | Year | Avg Temp |
|---|---|---|
| 1 | 2022 | 76.8°F |
| 2 | 1973 | 76.4°F |
| 3 | 2018 | 75.9°F |
| 4 | 2016 | 75.9°F |
| 5 | 1939 | 75.3°F |
| 6 | 2001 | 75.2°F |
| 7 | 2005 | 75.1°F |
| 8 | 2021 | 74.8°F |
| 9 | 1937 | 74.6°F |
| 10 | 2020 | 74.6°F |
Warmest Months on Record (Any Month)
| # | Month | Avg Temp |
|---|---|---|
| 1 | July 2024 | 78.6°F |
| 2 | July 2019 | 78.2°F |
| 3 | July 2020 | 78.0°F |
| 4 | July 2013 | 77.9°F |
| 5 | July 1994 | 77.1°F |
| 6 | July 2010 | 77.1°F |
| 7 | July 1955 | 77.0°F |
| 8 | July 2023 | 76.8°F |
| 9 | August 2022 | 76.8°F |
| 10 | July 2022 | 76.8°F |
Nearby Stations — August 2026
How the same month ranked at the closest reporting stations
| Station | Avg Temp | August Rank |
|---|---|---|
| Hartford, CT | 73.2°F | 30th of 122 |
| Westfield, MA | 71.8°F | 12th of 35 |
| Bridgeport, CT | 74.8°F | 23rd of 79 |
| Worcester, MA | 70.7°F | 30th of 130 |
| Poughkeepsie, NY | 72.2°F | 36th of 93 |
Fall in Review — Fall 2026
September 1 – November 30, 2026
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
|
Aug 9
so far
|
Aug 29 | Jul 10, 1912 | Oct 17, 1908 | +0.6 d/decade | |
|
Last 80°F day
The last genuinely warm afternoon
|
Sep 4
so far
|
Oct 2 | Sep 8, 1913 | Nov 6, 2024 | +0.3 d/decade | |
|
First high below 50°F
The first afternoon that stays cold
|
not yet | Oct 27 | Oct 1, 1981 | Nov 22, 1948 | +0.3 d/decade | |
|
First 32°F freeze
Growing season over
|
not yet | Oct 16 | Sep 20, 1979 | Nov 11, 1920 | -0.5 d/decade | |
|
First 28°F hard freeze
Cold enough to end tender growth
|
not yet | Oct 28 | Oct 4, 1945 | Nov 24, 1938 | -0.6 d/decade | |
|
First 20°F night
Winter cold arriving
|
not yet | Nov 23 | Oct 18, 1978 | Dec 25, 1920 | -0.5 d/decade | |
|
First measurable snow
0.1" or more in a day
|
not yet | Nov 27 | Oct 10, 1979 | Dec 29, 2015 | -0.1 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 1905 · trending -0.5 days earlier per decade
Growing Season Length by Year
Days between the last spring freeze and the first fall freeze · trending -1.2 days shorter per decade
Fall Average Temperature by Year
1905–2025 · 2026 highlighted · trend +0.06° per decade (warming since 1905)
Fall Precipitation by Year
1905–2025 · 2026 highlighted · trend +0.26" per decade (wetter since 1905)