Bethel, AK

Alaska · Records since 1923–2026

🌦️ 50°F Feels like 43°
Currently in Bethel
As of 6:15 PM AKDT
🔥 7° below today's record of 57°F

Records for September 26

🔥 Record High

57°F

September 26, 2018

+9° from 48° normal

❄ Record Low

20°F

September 26, 1983

-15° from 35° normal
🌞 Normal high: 48°F 🌑 Normal low: 35°F 1991–2020 normals

All-Time Records — Bethel

🔥
90°F
Hottest Day Ever
Jun 17, 1926
❄
-52°F
Coldest Day Ever
Jan 25, 1947
🌧
2.30"
Wettest Day Ever
Aug 12, 1951
☃
17.6"
Most Snow in One Day
Jan 3, 1952

First & Last Dates — Bethel

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)
155 days
Longest growing season
2018
28 days
Shortest growing season
1934
119 days
Normal growing season
1991–2020 average

Top 10 Record Highs — September 26

# Temp Date
🏆 57°F September 26, 2018
2 56°F September 26, 1935
3 56°F September 26, 1929
4 55°F September 26, 1984
5 55°F September 26, 1980
6 55°F September 26, 1934
7 54°F September 26, 2012
8 54°F September 26, 1991
9 54°F September 26, 1990
10 54°F September 26, 1936

Top 5 Record Lows — September 26

# Temp Date
🥶 20°F September 26, 1983
2 21°F September 26, 1992
3 23°F September 26, 1954
4 24°F September 26, 1970
5 24°F September 26, 1940
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 1923–2026. Climate normals represent the 1991–2020 average.

Heat Wave Summary — Bethel

threshold: 71°F (90th percentile of historical Jun–Aug highs)
4.4
Avg heat wave length
days (historical)
79°
Avg peak temp
during heat waves
0
Dangerous nights 2026
Overnights ≥ 70°F
0
Heat waves 2026
so far

Average Daily High by Decade

Full year · complete decades only

Longest Heat Waves — Bethel

# Dates Days Peak Avg High Avg Overnight Low
🏆 Jun 16, 1926 – Jun 29, 1926 14 90°F (Jun 17) 80°F 48°F
2 Jul 31, 1925 – Aug 11, 1925 12 84°F (Aug 2) 78°F 50°F
3 Jun 14, 2015 – Jun 25, 2015 12 84°F (Jun 19) 77°F 51°F
4 Jun 1, 2022 – Jun 10, 2022 10 80°F (Jun 5) 77°F 48°F
5 Aug 16, 2004 – Aug 25, 2004 10 79°F (Aug 17) 74°F 55°F
6 Jul 12, 1960 – Jul 20, 1960 9 83°F (Jul 13) 77°F 52°F
7 Jul 3, 1925 – Jul 11, 1925 9 78°F (Jul 3) 74°F 45°F
8 Jul 4, 1972 – Jul 11, 1972 8 83°F (Jul 7) 78°F 54°F
9 Jun 15, 1935 – Jun 22, 1935 8 82°F (Jun 17) 75°F 46°F
10 Jul 17, 1980 – Jul 24, 1980 8 80°F (Jul 19) 77°F 53°F

Heat Waves Per Year

Warm Summer Nights (Jun–Aug)

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

47
2026 total
above-normal nights
39.2
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 (1923–2026)

Blue = above average · tan = below average · gold = 2026 (partial)
Since 1923, annual totals have trended +0.27" per decade, about +2.8" 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 Bethel is tracking against normal, year to date

Daily High Temperature vs Normal

Above normal Below normal

86 of 267 days with data were above the 1991–2020 normal high for their date.

Precipitation, Year to Date

19.76"
2026 YTD
Normal: 14.45"
+5.31"
2.64"
September so far
September normal: 2.89"
-0.25"
1
2026 heavy rain days
Days with ≥ 1.0"

Accumulation vs. Normal

Running total since Jan 1 against the normal pace for the same date · Bethel is 5.31" ahead of the normal pace

Period Review — Sep 18 – Sep 25, 2026

Any window, evaluated against every other year on record — 8 days

Quick picks: Last 7 days Last 30 days Last 90 days This month
Seasons: Spring (Mar–May) Summer (Jun–Aug) Fall (Sep–Nov)
41.6°F
Average temperature
35th-coolest of 103
-1.7°
vs. average
Normal: 43.3°F (1991–2020)

Average Temperature by Year — Sep 18 – Sep 25

1923–2026 · 2026 highlighted · trend -0.11° per decade (cooling since 1923)

Precipitation by Year — Sep 18 – Sep 25

1923–2025 · 2026 highlighted · trend -0.01" per decade (drier since 1923)

Warmest Sep 18 – Sep 25 on Record

# Year Avg Temp
1 1926 54.0°F
2 1995 52.8°F
3 1942 51.8°F
4 1934 48.6°F
5 1974 48.3°F
6 1936 48.3°F
7 2007 48.3°F
8 2010 48.3°F
9 1929 48.2°F
10 2018 48.1°F

Coolest Sep 18 – Sep 25 on Record

# Year Avg Temp
1 1992 31.1°F
2 1948 33.2°F
3 1996 34.2°F
4 1956 36.0°F
5 1933 36.2°F
6 1970 36.2°F
7 2003 36.7°F
8 1968 36.8°F
9 2021 37.2°F
10 1947 37.5°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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