Weather on December 17 at Indiana Dunes
Indiana Dunes National Park
Based on 54 years of data from Gary, IN
Planning Your Visit
December 17th in Indiana Dunes National Park (via Gary, IN) typically brings cold winter weather, with average highs around 37°F and lows near 22°F. Over 54 years of records, the warmest December 17th was in 1977 (51°F average), while the coldest was 1989 (4°F) — a 47°F range across recorded history. Precipitation has occurred on 30% of recorded December 17th dates, with snow falling 20% of the time (heaviest snowfall: 3.5"). 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 December 17th 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 |
|---|---|---|---|---|
| 2025 | 42°F | 25°F | 0" | 0" |
| 2024 | 58°F | 35°F | 0" | 0" |
| 2023 | 45°F | 41°F | 0.64" | 0" |
| 2022 | 31°F | 21°F | 0.03" | 0.2" |
| 2021 | 48°F | 23°F | 0" | 0" |
| 2020 | 31°F | 27°F | 0" | 0" |
| 2019 | 34°F | 27°F | 0" | 0" |
| 2018 | 40°F | 24°F | -- | -- |
| 2017 | 48°F | 27°F | -- | 0" |
| 2016 | 25°F | 12°F | -- | -- |
| 2015 | 53°F | 31°F | 0.03" | 0" |
| 2014 | 43°F | 26°F | 0.15" | 0" |
| 2013 | 21°F | 8°F | 0.13" | 1" |
| 2012 | 47°F | 37°F | 0" | 0" |
| 2011 | 34°F | 26°F | 0" | 0" |
| 2010 | 27°F | 12°F | 0.08" | 0.5" |
| 2009 | 25°F | 9°F | 0" | 0" |
| 2008 | 22°F | 12°F | 0.46" | 2.3" |
| 2007 | 28°F | 17°F | 0" | 0" |
| 2006 | 55°F | 36°F | 0" | 0" |
| 2005 | 27°F | 12°F | 0.03" | -- |
| 2004 | 43°F | 31°F | 0" | 0" |
| 2003 | 43°F | 22°F | 0.08" | 0.3" |
| 2002 | 33°F | 25°F | 0" | 0" |
| 2001 | 45°F | 41°F | 0.81" | 0" |
| 2000 | 36°F | 10°F | 0.05" | 0" |
| 1999 | 26°F | 19°F | -- | 1" |
| 1998 | 43°F | 25°F | 0" | 0" |
| 1997 | 48°F | 22°F | 0" | 0" |
| 1996 | 33°F | 14°F | -- | -- |
| 1995 | 38°F | 19°F | -- | -- |
| 1994 | 43°F | 33°F | 0" | 0" |
| 1993 | 40°F | 27°F | 0.13" | 0" |
| 1992 | 53°F | 32°F | 0" | 0" |
| 1991 | 37°F | 28°F | 0" | 0" |
| 1990 | 37°F | 35°F | 0" | 0" |
| 1989 | 14°F | -6°F | 0" | 0" |
| 1988 | 22°F | 12°F | 0.08" | 0.5" |
| 1987 | 32°F | 19°F | 0" | 0" |
| 1986 | 43°F | 35°F | 0" | 0" |
| 1985 | 21°F | 6°F | 0.13" | 0.5" |
| 1984 | 60°F | 29°F | 0" | 0" |
| 1982 | 35°F | 28°F | 0" | 0" |
| 1981 | 28°F | 20°F | 0.3" | 3.5" |
| 1980 | 33°F | 17°F | 0" | 0" |
| 1979 | -- | -1°F | 0" | 0" |
| 1978 | 44°F | 22°F | 0" | 0" |
| 1977 | 55°F | 47°F | 0" | 0" |
| 1976 | 35°F | 29°F | 0" | 0" |
| 1975 | 32°F | 11°F | 0" | 0" |
| 1974 | 33°F | 24°F | 0" | 0.5" |
| 1973 | 26°F | 14°F | 0.64" | 2.5" |
| 1972 | 20°F | -1°F | 0" | 0" |
| 1971 | 36°F | 18°F | 0" | 0" |