Juneau, AK

Alaska · Records since 1943–2026

☀️ 53°F Feels like 49°
Currently in Juneau
As of 5:45 PM
🔥 7° below today's record of 60°F

Records for September 26

🔥 Record High

60°F

September 26, 2022

+6° from 54° normal

❄ Record Low

23°F

September 26, 1972

-19° from 42° normal
🌞 Normal high: 54°F 🌑 Normal low: 42°F 1991–2020 normals

All-Time Records — Juneau

🔥
90°F
Hottest Day Ever
Jul 7, 1975
❄
-22°F
Coldest Day Ever
Jan 12, 1972
🌧
4.93"
Wettest Day Ever
Dec 1, 2020
☃
30.6"
Most Snow in One Day
Mar 21, 1948

First & Last Dates — Juneau

How early and how late each seasonal turning point has ever arrived, across the full period of record

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Range ever recorded Normal date (1991–2020)
198 days
Longest growing season
1993
91 days
Shortest growing season
1955
144 days
Normal growing season
1991–2020 average

Top 10 Record Highs — September 26

# Temp Date
🏆 60°F September 26, 2022
2 60°F September 26, 1981
3 59°F September 26, 1944
4 58°F September 26, 2017
5 58°F September 26, 1989
6 58°F September 26, 1978
7 58°F September 26, 1977
8 57°F September 26, 2006
9 57°F September 26, 1995
10 57°F September 26, 1991

Top 5 Record Lows — September 26

# Temp Date
🥶 23°F September 26, 1972
2 26°F September 26, 1956
3 27°F September 26, 1951
4 29°F September 26, 1971
5 31°F September 26, 1983
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 1943–2026. Climate normals represent the 1991–2020 average.

Heat Wave Summary — Juneau

threshold: 74°F (90th percentile of historical Jun–Aug highs)
4.0
Avg heat wave length
days (historical)
80°
Avg peak temp
during heat waves
0
Dangerous nights 2026
Overnights ≥ 70°F
1
Heat waves 2026
so far

Average Daily High by Decade

Full year · complete decades only

Longest Heat Waves — Juneau

# Dates Days Peak Avg High Avg Overnight Low
🏆 Jul 8, 1951 – Jul 17, 1951 10 82°F (Jul 10) 79°F 50°F
2 Jun 9, 1948 – Jun 17, 1948 9 83°F (Jun 17) 80°F 44°F
3 Jun 18, 2004 – Jun 25, 2004 8 85°F (Jun 19) 84°F 50°F
4 Jul 3, 2009 – Jul 9, 2009 7 85°F (Jul 6) 81°F 47°F
5 Jul 29, 1976 – Aug 4, 1976 7 84°F (Jul 31) 79°F 49°F
6 Jun 27, 1992 – Jul 3, 1992 7 82°F (Jun 30) 77°F 52°F
7 Jun 13, 1944 – Jun 19, 1944 7 80°F (Jun 15) 77°F 45°F
8 Jul 10, 1993 – Jul 16, 1993 7 79°F (Jul 12) 78°F 52°F
9 Jun 11, 1969 – Jun 16, 1969 6 86°F (Jun 13) 82°F 48°F
10 Jun 3, 1980 – Jun 8, 1980 6 83°F (Jun 5) 79°F 46°F

Heat Waves Per Year

Warm Summer Nights (Jun–Aug)

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

43
2026 total
above-normal nights
39.8
Avg / summer
1970–2020
74
Most in a summer
2016

Above-Normal Summer Nights Per Year

Average June–August Low by Decade

Overnight lows · complete decades only

Precipitation

Annual totals and trend across the full period of record · see this year's standing →

Monthly Precipitation — Last 24 Months

Blue = actual · dashed line = monthly normal

Annual Precipitation Per Year (1943–2026)

Blue = above average · tan = below average · gold = 2026 (partial)
Since 1943, annual totals have trended +2.69" per decade, about +22.0" across the record.

Heavy Rain Days Per Year (≥ 1.0")

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

This Year — 2026

How Juneau is tracking against normal, year to date

Daily High Temperature vs Normal

Above normal Below normal

106 of 266 days with data were above the 1991–2020 normal high for their date.

Precipitation, Year to Date

38.36"
2026 YTD
Normal: 43.63"
-5.27"
3.74"
September so far
September normal: 9.15"
-5.41"
6
2026 heavy rain days
Days with ≥ 1.0"

Accumulation vs. Normal

Running total since Jan 1 against the normal pace for the same date · Juneau is 5.27" behind the normal pace

Period Review — Aug 26 – Sep 25, 2026

Any window, evaluated against every other year on record — 31 days

Quick picks: Last 7 days Last 30 days Last 90 days This month
Seasons: Spring (Mar–May) Summer (Jun–Aug) Fall (Sep–Nov)
52.7°F
Average temperature
11th-warmest of 84
+1.4°
vs. average
Normal: 51.3°F (1991–2020)

Average Temperature by Year — Aug 26 – Sep 25

1943–2026 · 2026 highlighted · trend +0.27° per decade (warming since 1943)

Precipitation by Year — Aug 26 – Sep 25

1943–2024 · 2026 highlighted · trend +0.41" per decade (wetter since 1943)

Warmest Aug 26 – Sep 25 on Record

# Year Avg Temp
1 1997 54.7°F
2 1995 54.1°F
3 2025 54.0°F
4 1989 54.0°F
5 1963 53.9°F
6 2013 53.3°F
7 2019 53.3°F
8 2023 53.3°F
9 2016 53.2°F
10 1957 52.8°F

Coolest Aug 26 – Sep 25 on Record

# Year Avg Temp
1 1970 47.1°F
2 1992 48.0°F
3 1969 48.0°F
4 1958 48.3°F
5 1955 48.5°F
6 1973 48.5°F
7 1959 48.6°F
8 1948 48.8°F
9 1968 48.8°F
10 1961 48.9°F
About this data. Pick any start and end date and this becomes the same kind of review as the Month and Fall tabs, just for exactly the window you asked for — the generalized version of the same engine, evaluated across every year on record. Average temperature is the mean of each day's (high + low) / 2; precipitation is the sum of daily totals. A year missing more than about a fifth of the window's days is excluded from the temperature ranking; any missing day excludes a year from the precipitation ranking, since an unreported day is unreported rain. Ranges that cross from December into January aren't supported yet. Normals are the 1991–2020 mean for the same window.
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