Delta Junction, AK
Alaska · Records since 1917–2026
Records for September 7
🔥 Record High
September 7, 1946
+13° from 58° normal❄ Record Low
September 7, 1952
-20° from 40° normalAll-Time Records — Delta Junction
Top 10 Record Highs — September 7
| # | Temp | Date |
|---|---|---|
| 🏆 | 71°F | September 7, 1946 |
| 2 | 69°F | September 7, 2009 |
| 3 | 69°F | September 7, 1943 |
| 4 | 68°F | September 7, 2020 |
| 5 | 68°F | September 7, 1989 |
| 6 | 67°F | September 7, 2019 |
| 7 | 67°F | September 7, 1993 |
| 8 | 67°F | September 7, 1941 |
| 9 | 66°F | September 7, 2025 |
| 10 | 66°F | September 7, 1997 |
Top 5 Record Lows — September 7
| # | Temp | Date |
|---|---|---|
| 🥶 | 20°F | September 7, 1952 |
| 2 | 23°F | September 7, 2004 |
| 3 | 27°F | September 7, 1988 |
| 4 | 27°F | September 7, 1980 |
| 5 | 27°F | September 7, 1945 |
Heat Wave Summary — Delta Junction
threshold: 78°F (90th percentile of historical Jun–Aug highs)2026 Daily High Temperature vs Normal
Year to date93 of 248 days with data were above the 1991–2020 normal high for their date.
Days ≥ 90°F Per Year
1947–2026Average Daily High by Decade
Full year · complete decades only
Longest Heat Waves — Delta Junction
| # | Dates | Days | Peak | Avg High | Avg Overnight Low |
|---|---|---|---|---|---|
| 🏆 | Jul 29, 1994 – Aug 7, 1994 | 10 | 90°F (Aug 6) | 84°F | 57°F |
| 2 | Jun 13, 2025 – Jun 22, 2025 | 10 | 84°F (Jun 20) | 81°F | 53°F |
| 3 | Jul 27, 1919 – Aug 4, 1919 | 9 | 89°F (Jul 29) | 81°F | 49°F |
| 4 | May 31, 1958 – Jun 8, 1958 | 9 | 87°F (Jun 1) | 82°F | 54°F |
| 5 | Jun 4, 1957 – Jun 12, 1957 | 9 | 85°F (Jun 10) | 82°F | 51°F |
| 6 | Jun 18, 2004 – Jun 25, 2004 | 8 | 88°F (Jun 24) | 84°F | 59°F |
| 7 | Jul 12, 1993 – Jul 19, 1993 | 8 | 87°F (Jul 16) | 82°F | 53°F |
| 8 | Jul 24, 1953 – Jul 31, 1953 | 8 | 86°F (Jul 27) | 83°F | 56°F |
| 9 | Jul 19, 1968 – Jul 26, 1968 | 8 | 84°F (Jul 22) | 81°F | 54°F |
| 10 | Jul 6, 1972 – Jul 13, 1972 | 8 | 84°F (Jul 11) | 82°F | 55°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 · Delta Junction is 1.28" ahead of the normal pace
Monthly Precipitation — Last 24 Months
Blue = actual · dashed line = monthly normal
Annual Precipitation Per Year (1919–2026)
Blue = above average · tan = below average · gold = 2026 (partial)
Since 1919, annual totals have trended
+0.17" per decade,
about +1.8"
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
114th-warmest month on record
13th-warmest August of 81 on record
+2.7° vs. 55.5° average (1991–2020)Average August Temperature by Year
1919–2026 · 2026 highlighted · trend +0.15° per decade (warming since 1919)
Warmest Augusts on Record
| # | Year | Avg Temp |
|---|---|---|
| 1 | 1977 | 61.6°F |
| 2 | 2004 | 61.0°F |
| 3 | 1994 | 60.7°F |
| 4 | 1979 | 60.5°F |
| 5 | 2023 | 60.1°F |
| 6 | 1957 | 59.9°F |
| 7 | 1989 | 59.5°F |
| 8 | 1976 | 59.1°F |
| 9 | 2016 | 59.0°F |
| 10 | 2007 | 58.6°F |
Warmest Months on Record (Any Month)
| # | Month | Avg Temp |
|---|---|---|
| 1 | July 2023 | 65.4°F |
| 2 | July 2009 | 64.7°F |
| 3 | June 2004 | 64.5°F |
| 4 | July 2019 | 63.6°F |
| 5 | July 2004 | 63.5°F |
| 6 | July 1978 | 63.4°F |
| 7 | July 1994 | 63.3°F |
| 8 | July 1993 | 63.2°F |
| 9 | July 2017 | 63.2°F |
| 10 | June 1969 | 63.2°F |
Nearby Stations — August 2026
How the same month ranked at the closest reporting stations
| Station | Avg Temp | August Rank |
|---|---|---|
| Delta Junction, AK | 58.2°F | 13th of 81 |
| Fairbanks, AK | 59.0°F | 19th of 121 |
| Gulkana, AK | 56.6°F | 9th of 84 |
| Talkeetna, AK | 57.2°F | 25th of 105 |
| Anchorage, AK | 57.5°F | 28th of 73 |
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 80°F day
The last genuinely warm afternoon
|
Jul 20
so far
|
Jul 24 | Jun 8, 1964 | Aug 30, 1974 | -0.7 d/decade | |
|
First high below 50°F
The first afternoon that stays cold
|
Aug 31 | Sep 6 | 6 days earlier | Jul 1, 1945 | Oct 3, 1995 | +1.4 d/decade |
|
First 32°F freeze
Growing season over
|
Sep 2 | Sep 5 | 3 days earlier | Jul 1, 1971 | Sep 27, 2016 | +0.5 d/decade |
|
First 28°F hard freeze
Cold enough to end tender growth
|
Sep 3 | Sep 21 | 18 days earlier | Aug 14, 1969 | Oct 10, 2020 | +1.4 d/decade |
|
First 20°F night
Winter cold arriving
|
not yet | Oct 4 | Sep 2, 1980 | Oct 26, 2025 | +0.7 d/decade | |
|
First measurable snow
0.1" or more in a day
|
not yet | — | Sep 2, 1983 | Nov 6, 1969 | +0.7 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 1941 · trending +0.5 days later per decade
Growing Season Length by Year
Days between the last spring freeze and the first fall freeze · trending +0.9 days longer per decade
Fall Average Temperature by Year
1941–2025 · 2026 highlighted · trend +0.21° per decade (warming since 1941)
Fall Precipitation by Year
1941–2024 · 2026 highlighted · trend -0.01" per decade (drier since 1941)