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Topics / Climate / United States / Alaska

Was September normal in Alaska?

September 2026 · 30 counties · data family: climatedata.dev

Warmer than normal

42.5°FStatewide average temperature, September 2026

Every Alaska county, September 2026September 2026 by county: 5 much warmer, 21 warmer, 4 near normal; furthest above normal Aleutians West Census Area (+2.4°F), furthest below North Slope Borough (-0.4°F).Choose a county to see its answer. The colour shows how far each county was from its own 1991–2020 normal.
Indicator: Monthly average temperature minus the county's 1991–2020 normal for September, °F (NOAA nClimDiv via climatedata.dev); words from each county's rank in its own recordSource: climatedata.dev us-climate, version 2026-10-25.6c7474e6d8; boundaries: U.S. Census Bureau TIGERweb, counties (generalised), EPSG:3338 (Alaska Albers equal-area)
Every September since 1925, Alaska statewideSeptember 2026 averaged 42.5°F, +1.1°F against the 1991–2020 normal: the 25th warmest September of 102 since 1925.
30.035.040.045.050.019401960198020002020normal 41.4°F2026: 42.5°F
Indicator: Monthly average temperature, °F (NOAA nClimDiv via climatedata.dev); normal = NOAA's 1991–2020 normal for that monthSource: climatedata.dev us-climate, version 2026-10-25.6c7474e6d8; NOAA Monthly U.S. Climate Divisional Database (nClimDiv), statewide and national files; climatedata.dev county-climate, version 2026-10-25.b4bbb5298a
Show the numbers (102 rows)
YearSeptember average
202642.5°F
202541.8°F
202442.2°F
202340.8°F
202242.7°F
202139.4°F
202042.0°F
201944.4°F
201844.3°F
201742.6°F
201642.3°F
201538.9°F
201442.3°F
201339.6°F
201240.6°F
201142.4°F
201042.8°F
200941.6°F
200841.2°F
200743.5°F
200644.3°F
200542.9°F
200437.4°F
200339.0°F
200242.7°F
200142.4°F
200038.6°F
199941.9°F
199841.6°F
199744.6°F
199637.3°F
199545.9°F
199439.8°F
199339.7°F
199231.6°F
199143.4°F
199040.1°F
198943.5°F
198839.9°F
198738.7°F
198641.6°F
198539.7°F
198442.1°F
198336.8°F
198241.5°F
198138.8°F
198038.8°F
197942.4°F
197842.6°F
197742.4°F
197641.7°F
197539.4°F
197444.3°F
197340.9°F
197238.7°F
197139.6°F
197036.5°F
196942.5°F
196838.4°F
196741.4°F
196641.9°F
196543.4°F
196441.5°F
196342.6°F
196238.4°F
196141.0°F
196038.3°F
195940.0°F
195840.0°F
195740.8°F
195639.2°F
195539.7°F
195440.6°F
195340.6°F
195238.7°F
195141.2°F
195041.7°F
194943.6°F
194837.0°F
194738.6°F
194639.3°F
194540.2°F
194440.0°F
194340.0°F
194244.0°F
194140.9°F
194041.3°F
193939.6°F
193842.6°F
193743.4°F
193640.4°F
193540.0°F
193441.8°F
193338.6°F
193238.4°F
193139.7°F
193039.5°F
192945.0°F
192838.2°F
192737.0°F
192644.3°F
192542.8°F

All 30 counties, September 2026

Record rank: 1 is the warmest September on record for that county.

1Aleutians West Census Area49.2°F+2.4°F6 of 102Much warmer than normal
2Aleutians East Borough50.0°F+2.3°F6 of 102Much warmer than normal
3Copper River Census Area39.1°F+2.1°F8 of 102Much warmer than normal
4Kodiak Island Borough49.4°F+2.1°F10 of 102Much warmer than normal
5Chugach Census Area44.0°F+1.8°F10 of 102Much warmer than normal
6Lake and Peninsula Borough48.0°F+1.7°F16 of 102Warmer than normal
7Southeast Fairbanks Census Area41.1°F+1.7°F24 of 102Warmer than normal
8Haines Borough44.9°F+1.6°F13 of 102Warmer than normal
9Bethel Census Area46.0°F+1.5°F20 of 102Warmer than normal
10Kusilvak Census Area46.0°F+1.5°F20 of 102Warmer than normal
11Matanuska-Susitna Borough41.5°F+1.5°F21 of 102Warmer than normal
12Skagway Municipality41.6°F+1.5°F16 of 102Warmer than normal
13Denali Borough40.4°F+1.4°F31 of 102Warmer than normal
14Kenai Peninsula Borough44.7°F+1.4°F18 of 102Warmer than normal
15Anchorage Municipality43.4°F+1.3°F18 of 102Warmer than normal
16Dillingham Census Area47.2°F+1.2°F21 of 102Warmer than normal
17Hoonah-Angoon Census Area47.0°F+1.2°F12 of 102Warmer than normal
18Nome Census Area42.3°F+1.2°F24 of 102Warmer than normal
19Yakutat City and Borough43.6°F+1.2°F15 of 102Warmer than normal
20Yukon-Koyukuk Census Area42.3°F+1.2°F32 of 102Warmer than normal
21Bristol Bay Borough49.3°F+1.1°F19 of 102Warmer than normal
22Sitka City and Borough50.0°F+1.1°F15 of 102Warmer than normal
23Fairbanks North Star Borough42.9°F+0.8°F39 of 102Near normal
24Prince of Wales-Hyder Census Area52.2°F+0.7°F23 of 102Warmer than normal
25Wrangell City and Borough49.2°F+0.6°F24 of 102Warmer than normal
26Ketchikan Gateway Borough50.2°F+0.5°F24 of 102Warmer than normal
27Petersburg Borough45.8°F+0.5°F24 of 102Warmer than normal
28Northwest Arctic Borough39.5°F+0.3°F43 of 102Near normal
29Juneau City and Borough42.9°F+0.1°F37 of 102Near normal
30North Slope Borough33.4°F−0.4°F47 of 102Near normal

Get this data

This page's numbers, as JSON:

curl https://visualizedata.org/data/topics/climate/us-ak.json

The climatedata.dev API it comes from (live, no key; every month since 1895 with its normal, anomaly and rank):

curl "https://api.climatedata.dev/v1/us-climate/tavg/us-ak.json"

Open the JSON

What this can't tell you

  • A statewide average is not the average of its counties: NOAA computes it from its own grid, weighted by area.
  • The most recent months are preliminary and NOAA revises them in the next release.

How the answer is decided

Each month is ranked against the same month in every year on record (since 1895 for most places). The top tenth of the record is 'much warmer than normal', the top third 'warmer', the middle third 'near normal'. Counties are coloured by the same five words.

Sources

Every topic for one county: How's Hennepin County?