Weather on January 20 at Indiana Dunes
Indiana Dunes National Park
Based on 56 years of data from Gary, IN
Planning Your Visit
January 20th in Indiana Dunes National Park (via Gary, IN) typically brings very cold winter weather, with average highs around 30°F and lows near 15°F. Over 56 years of records, the warmest January 20th was in 2006 (45°F average), while the coldest was 1985 (-15°F) — a 60°F range across recorded history. Precipitation has occurred on 32% of recorded January 20th dates, with snow falling 20% of the time (heaviest snowfall: 4.2"). 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 January 20th in Indiana Dunes? Bundle up with warm layers and protect extremities from the cold. Consider bringing rain gear or an umbrella. Check road conditions if traveling, as snow is possible.
Year by Year History
| Year | High | Low | Precip | Snow |
|---|---|---|---|---|
| 2026 | 12°F | 4°F | -- | -- |
| 2025 | 16°F | 1°F | 0" | 0" |
| 2024 | 15°F | 1°F | -- | 4.2" |
| 2023 | 43°F | 32°F | 0.28" | 0" |
| 2022 | 28°F | 13°F | 0" | 0" |
| 2021 | 31°F | 16°F | 0.23" | 1.6" |
| 2020 | 28°F | 18°F | -- | -- |
| 2019 | 21°F | 9°F | -- | -- |
| 2018 | 39°F | 28°F | -- | -- |
| 2017 | 40°F | 36°F | 1.73" | 0" |
| 2016 | 20°F | 3°F | 0.08" | 0.5" |
| 2015 | 42°F | 28°F | 0" | 0" |
| 2014 | 40°F | 12°F | 0.1" | 2.4" |
| 2013 | 47°F | 15°F | 0" | 0" |
| 2012 | 27°F | 6°F | 0" | 0" |
| 2011 | 26°F | 18°F | 0" | 0" |
| 2010 | 34°F | 22°F | 0" | 0" |
| 2009 | 25°F | 10°F | -- | -- |
| 2008 | 9°F | -3°F | -- | -- |
| 2007 | 29°F | 18°F | -- | -- |
| 2006 | 55°F | 36°F | 0" | 0" |
| 2005 | 34°F | 21°F | 0.05" | 0.5" |
| 2004 | 20°F | 13°F | 0.08" | 0.5" |
| 2003 | 30°F | 0°F | 0" | 0" |
| 2002 | 31°F | 17°F | 0" | 0" |
| 2001 | 32°F | 8°F | 0" | 0" |
| 2000 | 29°F | -6°F | 0" | 0" |
| 1999 | 29°F | 19°F | 0.08" | 0.7" |
| 1998 | 32°F | 16°F | 0" | 0" |
| 1997 | 38°F | 17°F | -- | -- |
| 1996 | 25°F | 14°F | -- | -- |
| 1995 | 38°F | 22°F | -- | -- |
| 1994 | -1°F | -18°F | 0.1" | 1.5" |
| 1993 | 35°F | 18°F | 0" | 0" |
| 1992 | 32°F | 20°F | 0" | 0" |
| 1991 | 40°F | 28°F | 0" | 0" |
| 1990 | 35°F | 32°F | 0.36" | 0" |
| 1989 | 47°F | 27°F | 0.03" | 1" |
| 1988 | 44°F | 25°F | 0.64" | 0" |
| 1987 | 30°F | 10°F | 0" | 0" |
| 1986 | 34°F | 27°F | 0" | 0" |
| 1985 | -6°F | -25°F | 0" | 0" |
| 1984 | 8°F | -7°F | 0" | 0" |
| 1983 | 27°F | 9°F | 0" | 0" |
| 1982 | 33°F | 7°F | 0" | 0" |
| 1981 | 43°F | 22°F | 0" | 0" |
| 1980 | -- | 19°F | 0.03" | 0" |
| 1979 | 36°F | 28°F | 0.08" | 0" |
| 1978 | 25°F | 20°F | 0.51" | 2" |
| 1977 | 25°F | 8°F | 0.2" | 0.5" |
| 1976 | 32°F | 14°F | 0" | 0" |
| 1975 | 29°F | 10°F | 0" | 0" |
| 1974 | 45°F | 34°F | 1.78" | 0" |
| 1973 | 35°F | 25°F | 0" | 0" |
| 1972 | 38°F | 29°F | 0.53" | 0" |
| 1971 | 25°F | -4°F | 0" | -- |