Barrow, AK

Alaska · Records since 1920–2026

🌦️ 45°F Feels like 36°
Currently in Barrow
As of 10:30 AM AKDT

Records for September 11

🔥 Record High

60°F

September 11, 2007

+21° from 39° normal

❄ Record Low

21°F

September 11, 1931

-11° from 32° normal
🌞 Normal high: 39°F 🌑 Normal low: 32°F 1991–2020 normals

All-Time Records — Barrow

🔥
79°F
Hottest Day Ever
Jul 13, 1993
❄
-56°F
Coldest Day Ever
Feb 3, 1924
🌧
1.42"
Wettest Day Ever
Jul 26, 2022
☃
15.0"
Most Snow in One Day
Oct 26, 1926

First & Last Dates — Barrow

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)
85 days
Longest growing season
2019
0 days
Shortest growing season
1921
13 days
Normal growing season
1991–2020 average

Top 10 Record Highs — September 11

# Temp Date
🏆 60°F September 11, 2007
2 55°F September 11, 2010
3 53°F September 11, 2019
4 53°F September 11, 1986
5 52°F September 11, 2001
6 51°F September 11, 2011
7 51°F September 11, 1925
8 48°F September 11, 1976
9 47°F September 11, 1927
10 46°F September 11, 1970

Top 5 Record Lows — September 11

# Temp Date
🥶 21°F September 11, 1931
2 22°F September 11, 1964
3 22°F September 11, 1960
4 22°F September 11, 1936
5 23°F September 11, 1992
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 1920–2026. Climate normals represent the 1991–2020 average.

Heat Wave Summary — Barrow

threshold: 56°F (90th percentile of historical Jun–Aug highs)
3.7
Avg heat wave length
days (historical)
66°
Avg peak temp
during heat waves
0
Dangerous nights 2026
Overnights ≥ 70°F
2
Heat waves 2026
so far

Average Daily High by Decade

Full year · complete decades only

Longest Heat Waves — Barrow

# Dates Days Peak Avg High Avg Overnight Low
🏆 Aug 4, 1994 – Aug 11, 1994 8 68°F (Aug 9) 64°F 43°F
2 Aug 13, 2012 – Aug 20, 2012 8 66°F (Aug 19) 61°F 46°F
3 Jul 18, 2023 – Jul 24, 2023 7 74°F (Jul 19) 68°F 49°F
4 Jul 29, 1977 – Aug 4, 1977 7 69°F (Aug 4) 61°F 43°F
5 Jul 26, 2023 – Aug 1, 2023 7 65°F (Jul 28) 59°F 46°F
6 Jul 14, 1927 – Jul 19, 1927 6 78°F (Jul 14) 66°F 40°F
7 Jul 23, 1928 – Jul 28, 1928 6 70°F (Jul 27) 64°F 41°F
8 Jun 19, 2015 – Jun 24, 2015 6 67°F (Jun 19) 60°F 38°F
9 Aug 4, 2024 – Aug 8, 2024 5 74°F (Aug 6) 66°F 46°F
10 Jul 8, 1946 – Jul 12, 1946 5 73°F (Jul 10) 65°F 39°F

Heat Waves Per Year

Warm Summer Nights (Jun–Aug)

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

35
2026 total
above-normal nights
32.0
Avg / summer
1970–2020
80
Most in a summer
2019

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 (1920–2026)

Blue = above average · tan = below average · gold = 2026 (partial)
Since 1920, annual totals have trended +0.25" per decade, about +2.7" 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 Barrow is tracking against normal, year to date

Daily High Temperature vs Normal

Above normal Below normal

93 of 241 days with data were above the 1991–2020 normal high for their date.

Precipitation, Year to Date

4.79"
2026 YTD
Normal: 3.77"
+1.02"
0.66"
September so far
September normal: 0.77"
-0.11"
0
2026 heavy rain days
Days with ≥ 1.0"

Accumulation vs. Normal

Running total since Jan 1 against the normal pace for the same date · Barrow is 1.02" ahead of the normal pace

Period Review — Sep 1 – Sep 10, 2026

Any window, evaluated against every other year on record — 10 days

Quick picks: Last 7 days Last 30 days Last 90 days This month
Seasons: Spring (Mar–May) Summer (Jun–Aug) Fall (Sep–Nov)
35.6°F
Average temperature
44th-warmest of 104
-1.2°
vs. average
Normal: 36.8°F (1991–2020)
0.66"
Precipitation
5th-wettest of 105
+0.37"
vs. average
Normal: 0.29" · 228% of normal

Average Temperature by Year — Sep 1 – Sep 10

1921–2026 · 2026 highlighted · trend +0.50° per decade (warming since 1921)

Precipitation by Year — Sep 1 – Sep 10

1921–2026 · 2026 highlighted · trend +0.02" per decade (wetter since 1921)

Warmest Sep 1 – Sep 10 on Record

# Year Avg Temp
1 2019 46.9°F
2 1954 44.3°F
3 2024 41.9°F
4 1998 41.1°F
5 2002 41.0°F
6 1979 40.9°F
7 1986 40.8°F
8 1989 40.8°F
9 1940 40.5°F
10 2007 40.4°F

Coolest Sep 1 – Sep 10 on Record

# Year Avg Temp
1 1955 24.5°F
2 1922 26.1°F
3 1960 26.4°F
4 1975 26.8°F
5 1983 28.1°F
6 1945 28.2°F
7 1980 28.5°F
8 1981 28.5°F
9 1967 28.6°F
10 1971 29.5°F

Wettest Sep 1 – Sep 10 on Record

# Year Total
1 2003 1.21"
2 2002 1.17"
3 1986 0.81"
4 2012 0.75"
5 2026 0.66"
6 1983 0.65"
7 1962 0.62"
8 1989 0.62"
9 1935 0.59"
10 1941 0.59"

Driest Sep 1 – Sep 10 on Record

# Year Total
1 1988 0.00"
2 1971 0.00"
3 1969 0.00"
4 1963 0.00"
5 1947 0.00"
6 1943 0.00"
7 1934 0.00"
8 1930 0.00"
9 1927 0.00"
10 1974 0.01"
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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