Weather on September 15
Anchorage, AK
55 Years of Data
About This Date
September 15th in Anchorage, AK typically brings cool fall weather, with average highs around 57°F and lows near 44°F. Over 31 years of records, the warmest September 15th was in 2026 (57°F average), while the coldest was 2004 (41°F) — a 16°F range across recorded history. Rain or other precipitation has occurred on about 52% of September 15th dates historically, with the wettest September 15th recording 1.15" of rain. The last decade has been 3.6°F warmer on this date compared to 20-30 years ago.
The last decade has been 3.6°F warmer on this date compared to 20-30 years ago.
Planning for September 15th in Anchorage, AK? Bring layers as temperatures can vary throughout the day. Consider bringing rain gear or an umbrella.
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2026warmest | 62° | 52° | 57° | 0.66" | — |
| 2025 | 56° | 42° | 49° | — | — |
| 2024 | 59° | 49° | 54° | 0.12" | — |
| 2023 | 53° | 45° | 49° | 0.06" | — |
| 2022 | 56° | 47° | 51° | 0.15" | — |
| 2021 | 57° | 46° | 52° | 0.02" | — |
| 2020 | 53° | 44° | 49° | 0.07" | — |
| 2019 | 53° | 46° | 50° | — | — |
| 2018 | 63° | 45° | 54° | — | — |
| 2017 | 60° | 45° | 52° | — | — |
| 2016 | 56° | 48° | 52° | 0.22" | — |
| 2015 | 50° | 47° | 48° | 1.15" | — |
| 2014 | 55° | 48° | 52° | 0.18" | — |
| 2013 | 62° | 41° | 52° | — | — |
| 2012 | 58° | 48° | 53° | 0.43" | — |
| 2011 | 57° | 47° | 52° | — | — |
| 2010 | 57° | 48° | 53° | — | — |
| 2009 | 63° | 41° | 52° | — | — |
| 2008 | 57° | 46° | 52° | — | — |
| 2007 | 56° | 42° | 49° | — | — |
| 2006 | 53° | 49° | 51° | 0.4" | — |
| 2005 | 58° | 42° | 50° | 0.1" | — |
| 2004coldest | 53° | 29° | 41° | — | — |
| 2003 | 54° | 31° | 42° | — | — |
| 2002 | 62° | 47° | 54° | 0.03" | — |
| 2001 | 62° | 42° | 52° | — | — |
| 2000 | 58° | 41° | 49° | — | — |
| 1999 | 55° | 48° | 52° | 0.15" | — |
| 1998 | 55° | 36° | 45° | 0.09" | — |
| 1972 | 54° | 41° | 47° | 0.5" | — |
| 1971 | 59° | 38° | 48° | — | — |
Anchorage, AK Temperature Range by Month
Average monthly highs and lows. The shaded band shows the typical daily temperature range.
Anchorage, AK Monthly Precipitation
Average rainfall and snowfall per month, in inches.
Anchorage, AK Daily Temperature Calendar
Average daily high temperature for every day of the year. Each cell is the climatological mean for that calendar day across 55 years of NOAA data.
Best Time to Visit Anchorage, AK
Most pleasant months in Anchorage, AK: June, July, August.
What to expect on September 15th
This page shows what actually happened each year. For the odds — typical high and low, and how often it stays dry — see the climatological outlook for this date.
September 15th outlook →