Average Precipitation for Alaska in September





The tables below give monthly averages for rainfall plus snowfall during September at communities and other locations around Alaska.

Each place has a total for the amount of precipitation it usually receives this month. There is also a count of the number of days with wet weather, when precipitation amounts to 0.01 inches (0.25 millimetres) or more.

The precipitation totals are averages based on weather data collected from 1991 to 2020 for the US National Centers for Environmental Information.

You can jump to a separate table for each region of the state: Southeast, South - Central, Southwest, Interior and Far North Alaska.

Southeast Alaska

Average monthly precipitation in September
Days Place Inches Milli­metres
20 Annette Island 10.2 258
19 Haines 6.8 172
22 Juneau 9.2 232
20 Ketchikan 14.3 363
22 Sitka 11.7 297
17 Skagway 3.9 99
22 Yakutat 19.0 483

South - Central Alaska

September averages for total rainfall plus snowfall
Days Place Inches Milli­metres
15 Anchorage 3.1 79
11 Gulkana 1.4 36
17 Homer 3.3 83
17 Seward 9.9 251
16 Talkeetna 4.5 114
21 Valdez 9.8 248

Southwest Alaska

Average amount of rain and snow in September
Days Place Inches Milli­metres
17 Bethel 2.9 73
23 Cold Bay 4.5 114
18 King Salmon 3.4 86
17 Kodiak 7.6 192
14 McGrath 2.5 64
11 Port Alsworth 2.6 65
20 St Paul Island 3.0 76

Interior Alaska

Precipitation totals for September
Days Place Inches Milli­metres
11 Fairbanks 1.4 34
13 McKinley Park 1.7 44
12 Tanana 1.7 43
6 Tok 1.0 24

Far North Alaska

Total precipitation during September
Days Place Inches Milli­metres
14 Barrow 0.8 20
13 Bettles 2.1 54
12 Kotzebue 1.4 36
14 Nome 2.2 56
Reference

NOAA National Centers for Environmental Information (NCEI). Climate Normals.

Alaska Precipitation
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