Weather on July 12 at Indiana Dunes
Indiana Dunes National Park
Based on 55 years of data from Gary, IN
Planning Your Visit
July 12th in Indiana Dunes National Park (via Gary, IN) typically brings warm summer weather, with average highs around 83°F and lows near 64°F. Over 55 years of records, the warmest July 12th was in 1995 (84°F average), while the coldest was 1975 (62°F) — a 22°F range across recorded history. Rain or other precipitation has occurred on about 27% of July 12th dates historically, with the wettest July 12th recording 2.13" of rain. The last decade has been 4.6°F warmer on this date compared to 20-30 years ago.
The last decade has been 4.6°F warmer on this date compared to 20-30 years ago.
Planning for July 12th in Indiana Dunes? Stay hydrated and seek shade during peak afternoon hours.
Year by Year History
| Year | High | Low | Precip | Snow |
|---|---|---|---|---|
| 2025 | 93°F | 74°F | 0" | 0" |
| 2024 | 75°F | 62°F | 0" | 0" |
| 2023 | 85°F | 58°F | 1.02" | 0" |
| 2022 | 85°F | 69°F | 0" | 0" |
| 2021 | 76°F | 65°F | -- | -- |
| 2020 | 77°F | 68°F | -- | -- |
| 2019 | 75°F | 60°F | 0" | 0" |
| 2018 | 82°F | 63°F | 0" | -- |
| 2017 | 82°F | 72°F | 0" | 0" |
| 2016 | 89°F | 71°F | 0" | 0" |
| 2015 | 79°F | 66°F | 0.05" | 0" |
| 2014 | 79°F | 62°F | 0" | 0" |
| 2013 | 75°F | 55°F | 0" | 0" |
| 2012 | 82°F | 64°F | 0" | 0" |
| 2011 | 89°F | 70°F | 0.56" | 0" |
| 2010 | 84°F | 66°F | 0.58" | 0" |
| 2009 | 82°F | 61°F | 0" | 0" |
| 2008 | 88°F | 67°F | 0.08" | 0" |
| 2007 | 77°F | 59°F | 0" | 0" |
| 2006 | 75°F | 68°F | 1.68" | 0" |
| 2005 | 91°F | 68°F | 0.05" | 0" |
| 2004 | 86°F | 68°F | 0.23" | 0" |
| 2003 | 74°F | 61°F | 0" | 0" |
| 2002 | 74°F | 59°F | 0" | 0" |
| 2001 | 70°F | 56°F | 0" | 0" |
| 2000 | 76°F | 65°F | 0" | 0" |
| 1999 | 81°F | 57°F | 0" | 0" |
| 1998 | 68°F | 58°F | 0" | 0" |
| 1997 | 85°F | 56°F | -- | 0" |
| 1996 | 80°F | 57°F | 0" | 0" |
| 1995 | 93°F | 76°F | 0" | 0" |
| 1994 | 80°F | 63°F | 0" | 0" |
| 1993 | 82°F | 67°F | 0" | 0" |
| 1992 | 79°F | 69°F | 0.64" | 0" |
| 1991 | 85°F | 70°F | 0" | 0" |
| 1990 | 73°F | 64°F | 0.03" | 0" |
| 1989 | 84°F | 68°F | 2.13" | 0" |
| 1988 | 89°F | 56°F | 0" | 0" |
| 1987 | 92°F | 73°F | 0" | 0" |
| 1986 | 84°F | 68°F | 1.02" | 0" |
| 1985 | 86°F | 60°F | 0" | 0" |
| 1984 | 87°F | 62°F | 0.13" | 0" |
| 1983 | 92°F | 72°F | 0" | 0" |
| 1982 | 84°F | 62°F | 0" | 0" |
| 1981 | 89°F | 69°F | 1.55" | 0" |
| 1980 | 95°F | -- | 0" | 0" |
| 1979 | 86°F | 64°F | 0" | 0" |
| 1978 | 79°F | 49°F | 0" | 0" |
| 1977 | 90°F | 68°F | 0.79" | 0" |
| 1976 | 88°F | 62°F | 0" | 0" |
| 1975 | 73°F | 52°F | 0" | 0" |
| 1974 | 87°F | 56°F | 0" | 0" |
| 1973 | 88°F | 52°F | 0" | 0" |
| 1972 | 93°F | 68°F | 0" | 0" |
| 1971 | 83°F | 59°F | 0" | 0" |