Weather on September 14 at Isle Royale
Isle Royale National Park
Based on 51 years of data from Houghton, MI
Planning Your Visit
September 14th in Isle Royale National Park (via Houghton, MI) typically brings mild fall weather, with average highs around 65°F and lows near 48°F. Over 51 years of records, the warmest September 14th was in 1997 (71°F average), while the coldest was 2007 (44°F) — a 27°F range across recorded history. Rain or other precipitation has occurred on about 39% of September 14th dates historically, with the wettest September 14th recording 1.16" of rain. Temperatures on this date have remained relatively stable over the past several decades.
Temperatures on this date have remained relatively stable over the past several decades.
Planning for September 14th in Isle Royale? Great weather for outdoor activities. Consider bringing rain gear or an umbrella.
Year by Year History
| Year | High | Low | Precip | Snow |
|---|---|---|---|---|
| 2026 | 65°F | 36°F | 0.84" | -- |
| 2025 | 72°F | 55°F | 0" | -- |
| 2024 | 76°F | 57°F | 0" | -- |
| 2023 | 70°F | 40°F | 0" | -- |
| 2022 | 61°F | 47°F | 0" | -- |
| 2021 | 62°F | 55°F | 1.16" | -- |
| 2020 | 60°F | 38°F | 0" | -- |
| 2019 | 63°F | 51°F | 0.02" | -- |
| 2018 | 80°F | 62°F | 0" | -- |
| 2017 | 79°F | 58°F | 0" | -- |
| 2016 | 65°F | 44°F | 0" | -- |
| 2015 | 83°F | 53°F | 0" | -- |
| 2014 | 60°F | 44°F | 0.1" | -- |
| 2013 | 70°F | 41°F | 0" | -- |
| 2012 | 60°F | 37°F | 0" | -- |
| 2011 | 51°F | 41°F | 0.04" | -- |
| 2010 | 56°F | 39°F | 0" | -- |
| 2009 | 74°F | 59°F | 0" | -- |
| 2008 | 57°F | 47°F | 0.01" | -- |
| 2007 | 49°F | 39°F | 0.17" | -- |
| 2006 | 73°F | 42°F | 0" | -- |
| 2005 | 64°F | 43°F | 0" | -- |
| 2004 | 72°F | 59°F | 0" | -- |
| 2003 | 60°F | 48°F | 0.37" | -- |
| 2002 | 68°F | 58°F | 0.03" | 0" |
| 2001 | 61°F | 38°F | 0" | 0" |
| 2000 | 72°F | 47°F | 0" | 0" |
| 1999 | 59°F | 40°F | 0.97" | 0" |
| 1998 | 78°F | 64°F | 0.85" | 0" |
| 1997 | 82°F | 61°F | 0" | 0" |
| 1996 | 56°F | 46°F | 0.13" | 0" |
| 1995 | 66°F | 45°F | 0.3" | 0" |
| 1994 | 68°F | 59°F | 0" | 0" |
| 1993 | 48°F | 42°F | 0.29" | 0" |
| 1992 | 71°F | 55°F | 0" | 0" |
| 1991 | 68°F | 53°F | 0.39" | 0" |
| 1990 | 60°F | 45°F | 0.13" | 0" |
| 1989 | 65°F | 44°F | 0" | 0" |
| 1988 | 62°F | 48°F | 0" | 0" |
| 1983 | 57°F | 44°F | 0" | 0" |
| 1981 | 65°F | 48°F | 0" | 0" |
| 1980 | 56°F | 44°F | 0.04" | 0" |
| 1979 | 54°F | 48°F | 0" | 0" |
| 1978 | 61°F | 50°F | 0.6" | 0" |
| 1977 | 66°F | 46°F | 0" | 0" |
| 1976 | 52°F | 48°F | 0.05" | 0" |
| 1975 | 70°F | 33°F | 0" | 0" |
| 1974 | 64°F | 39°F | 0.02" | 0" |
| 1973 | 60°F | 53°F | 0" | 0" |
| 1972 | 65°F | 44°F | 0" | 0" |
| 1971 | 64°F | 50°F | 0" | 0" |