Weather on May 16 at Indiana Dunes
Indiana Dunes National Park
Based on 55 years of data from Gary, IN
Planning Your Visit
May 16th in Indiana Dunes National Park (via Gary, IN) typically brings pleasant spring weather, with average highs around 70°F and lows near 49°F. Over 55 years of records, the warmest May 16th was in 1998 (77°F average), while the coldest was 2014 (40°F) — a 37°F range across recorded history. Rain or other precipitation has occurred on about 35% of May 16th dates historically, with the wettest May 16th recording 4.83" 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 May 16th in Indiana Dunes? Great weather for outdoor activities. Consider bringing rain gear or an umbrella.
Year by Year History
| Year | High | Low | Precip | Snow |
|---|---|---|---|---|
| 2025 | 93°F | 61°F | 0.05" | 0" |
| 2024 | 61°F | 46°F | 0" | 0" |
| 2023 | 63°F | 51°F | 0" | 0" |
| 2022 | 73°F | 49°F | -- | 0" |
| 2021 | 71°F | 53°F | -- | -- |
| 2020 | 67°F | 48°F | -- | -- |
| 2019 | 75°F | 54°F | 0" | 0" |
| 2018 | 61°F | 43°F | 0" | 0" |
| 2017 | 83°F | 61°F | 0" | 0" |
| 2016 | 55°F | 41°F | 0" | 0" |
| 2015 | 80°F | 64°F | 0.03" | 0" |
| 2014 | 46°F | 34°F | 0.15" | 0" |
| 2013 | 78°F | 49°F | 0" | 0" |
| 2012 | 82°F | 51°F | 0" | 0" |
| 2011 | 48°F | 42°F | 0.41" | 0" |
| 2010 | 61°F | 43°F | 0" | 0" |
| 2009 | 62°F | 53°F | 2.72" | 0" |
| 2008 | 55°F | 40°F | 0" | 0" |
| 2007 | 85°F | 44°F | 4.83" | 0" |
| 2006 | 53°F | 45°F | 0" | 0" |
| 2005 | 52°F | 44°F | 0" | 0" |
| 2004 | 50°F | 35°F | 0" | 0" |
| 2003 | 57°F | 47°F | -- | -- |
| 2002 | 74°F | 54°F | 0" | 0" |
| 2001 | 89°F | 65°F | 0.13" | 0" |
| 2000 | 69°F | 53°F | 0" | 0" |
| 1999 | 76°F | 58°F | 0.08" | 0" |
| 1998 | 87°F | 67°F | 0" | 0" |
| 1997 | 66°F | 40°F | -- | 0" |
| 1996 | 66°F | 56°F | 0.18" | 0" |
| 1995 | 77°F | 51°F | 0.89" | 0" |
| 1994 | 74°F | 43°F | 0.03" | 0" |
| 1993 | 68°F | 45°F | 0.13" | 0" |
| 1992 | 87°F | 55°F | 0" | 0" |
| 1991 | 85°F | 63°F | 0" | 0" |
| 1990 | 71°F | 55°F | 0.71" | 0" |
| 1989 | 69°F | 39°F | 0" | 0" |
| 1988 | 78°F | 40°F | 0" | 0" |
| 1987 | 83°F | 43°F | 0" | 0" |
| 1986 | 77°F | 60°F | 0.71" | 0" |
| 1985 | 65°F | 54°F | 0.03" | 0" |
| 1984 | 61°F | 32°F | 0" | 0" |
| 1983 | 65°F | 34°F | 0" | 0" |
| 1982 | 80°F | 58°F | 0.41" | 0" |
| 1981 | 73°F | 40°F | 0" | 0" |
| 1980 | 62°F | 36°F | 0" | 0" |
| 1979 | 72°F | 38°F | 0" | 0" |
| 1978 | 61°F | 51°F | 0" | 0" |
| 1977 | 91°F | 56°F | 0" | 0" |
| 1976 | 72°F | 55°F | 0" | 0" |
| 1975 | 59°F | 40°F | 0" | 0" |
| 1974 | 79°F | 48°F | 0.66" | 0" |
| 1973 | 65°F | 39°F | 0" | 0" |
| 1972 | 66°F | 49°F | 0.08" | 0" |
| 1971 | 80°F | 57°F | 0.25" | 0" |