Delta Junction, AK

Alaska · Records since 1917–2026

🌙 56°F
Currently in Delta Junction
As of 12:45 AM AKDT

Records for August 11

🔥 Record High

86°F

August 11, 1980

+20° from 66° normal

❄ Record Low

33°F

August 11, 1969

-15° from 48° normal
🌞 Normal high: 66°F 🌑 Normal low: 48°F 1991–2020 normals

All-Time Records — Delta Junction

🔥
92°F
Hottest Day Ever
Jun 15, 1969
-63°F
Coldest Day Ever
Jan 30, 1947
🌧
2.27"
Wettest Day Ever
Jul 28, 2008
10.4"
Most Snow in One Day
Oct 18, 1981

Top 10 Record Highs — August 11

# Temp Date
🏆 86°F August 11, 1980
2 85°F August 11, 1994
3 82°F August 11, 1960
4 82°F August 11, 1951
5 80°F August 11, 1992
6 79°F August 11, 2005
7 79°F August 11, 1989
8 78°F August 11, 1968
9 77°F August 11, 2013
10 77°F August 11, 1946

Top 5 Record Lows — August 11

# Temp Date
🥶 33°F August 11, 1969
2 35°F August 11, 1966
3 36°F August 11, 1948
4 37°F August 11, 1940
5 39°F August 11, 1919
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 1917–2026. Climate normals represent the 1991–2020 average.

Heat Wave Summary — Delta Junction

threshold: 78°F (90th percentile of historical Jun–Aug highs)
4.3
Avg heat wave length
days (historical)
84°
Avg peak temp
during heat waves
0
Dangerous nights 2026
Overnights ≥ 70°F
0
Heat waves 2026
so far

2026 Daily High Temperature vs Normal

Year to date
Above normal Below normal

76 of 221 days with data were above the 1991–2020 normal high for their date.


Days ≥ 90°F Per Year

1947–2026
0
2026 so far
2
Avg/year 1970–2025
2
Avg/year (last 10 complete)
2
Most in a year (1947)

Average 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

28
2026 so far
above-normal nights
40.4
Avg / summer
1970–2020
74
Most in a summer
2004

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

6.72"
2026 YTD
Normal: 6.85"
-0.13"
0.01"
August so far
August normal: 2.02"
-2.01"
4.90"
Summer so far
Summer normal: 6.57"
-1.67"
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

58.3°F

Average temperature · July 2026

108th-warmest month on record

69th-warmest July of 83 on record

-2.4° vs. 60.7° average (1991–2020)
65.4°F
Warmest month ever
July 2023
65.4°F
Warmest July ever
2023
81°F
Hottest of 2026
Jul 20

Average July Temperature by Year

1919–2026 · 2026 highlighted


Warmest Julys on Record

# Year Avg Temp
1 2023 65.4°F
2 2009 64.7°F
3 2019 63.6°F
4 2004 63.5°F
5 1978 63.4°F
6 1994 63.3°F
7 1993 63.2°F
8 2017 63.2°F
9 1968 62.9°F
10 1997 62.9°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 — July 2026

How the same month ranked at the closest reporting stations

Station Avg Temp July Rank
Delta Junction, AK 58.3°F 69th of 83
Fairbanks, AK 60.1°F 91st of 122
Gulkana, AK 55.5°F 72nd of 87
Talkeetna, AK 56.1°F 98th of 104
Anchorage, AK 56.3°F 67th of 73
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 976 complete months on record.