Weather on September 15 at Lake Clark
Lake Clark National Park and Preserve
Based on 30 years of data from Anchorage, AK
Planning Your Visit
September 15th in Lake Clark National Park (via Anchorage, AK) typically brings cool fall weather, with average highs around 57°F and lows near 44°F. Over 30 years of records, the warmest September 15th was in 2002 (54°F average), while the coldest was 2004 (41°F) — a 13°F range across recorded history. Rain or other precipitation has occurred on about 50% of September 15th dates historically, with the wettest September 15th recording 2.92" of rain. The last decade has been 3.1°F warmer on this date compared to 20-30 years ago.
The last decade has been 3.1°F warmer on this date compared to 20-30 years ago.
Planning for September 15th in Lake Clark? Bring layers as temperatures can vary throughout the day. Consider bringing rain gear or an umbrella.
Year by Year History
| Year | High | Low | Precip | Snow |
|---|---|---|---|---|
| 2025 | 56°F | 42°F | 0" | -- |
| 2024 | 59°F | 49°F | 0.3" | -- |
| 2023 | 53°F | 45°F | 0.15" | -- |
| 2022 | 56°F | 47°F | 0.38" | -- |
| 2021 | 57°F | 46°F | 0.05" | -- |
| 2020 | 53°F | 44°F | 0.18" | -- |
| 2019 | 53°F | 46°F | 0" | -- |
| 2018 | 63°F | 45°F | 0" | -- |
| 2017 | 60°F | 45°F | 0" | -- |
| 2016 | 56°F | 48°F | 0.56" | -- |
| 2015 | 50°F | 47°F | 2.92" | -- |
| 2014 | 55°F | 48°F | 0.46" | -- |
| 2013 | 62°F | 41°F | 0" | -- |
| 2012 | 58°F | 48°F | 1.09" | -- |
| 2011 | 57°F | 47°F | 0" | -- |
| 2010 | 57°F | 48°F | 0" | -- |
| 2009 | 63°F | 41°F | 0" | -- |
| 2008 | 57°F | 46°F | 0" | -- |
| 2007 | 56°F | 42°F | 0" | -- |
| 2006 | 53°F | 49°F | 1.02" | -- |
| 2005 | 58°F | 42°F | 0.25" | -- |
| 2004 | 53°F | 29°F | 0" | -- |
| 2003 | 54°F | 31°F | 0" | 0" |
| 2002 | 62°F | 47°F | 0.08" | 0" |
| 2001 | 62°F | 42°F | 0" | 0" |
| 2000 | 58°F | 41°F | 0" | 0" |
| 1999 | 55°F | 48°F | 0.38" | 0" |
| 1998 | 55°F | 36°F | 0.23" | 0" |
| 1972 | 54°F | 41°F | 1.27" | -- |
| 1971 | 59°F | 38°F | 0" | 0" |