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Joliet, IL Weather on May 16
May 16th in Joliet, IL typically brings pleasant spring weather, with average highs around 70°F and lows near 49°F. Over 53 years of records, the warmest May 16th was in 2001 (76°F average), while the coldest was 1997 (43°F) — a 33°F range across recorded history. Rain or other precipitation has occurred on about 30% of May 16th dates historically, with the wettest May 16th recording 3.84" of rain. The last decade has been 3.5°F warmer on this date compared to 20-30 years ago.
What to Expect on May 16
Planning for May 16th in Joliet, IL? Great weather for outdoor activities. Consider bringing rain gear or an umbrella.
May 16 Weather Records for Joliet
- •The all-time record high for May 16th in Joliet, IL is 89°F, set in 2025.
- •The coldest May 16th on record dropped to 35°F in 1997.
- •Last year (1971), May 16th was 13°F warmer than the long-term average.
Frequently Asked Questions
What was the warmest May 16 ever in Joliet?
The warmest May 16 in Joliet, IL reached 89°F in 2025. That is 19°F above the long-term average high of 70°F.
What was the coldest May 16 ever in Joliet?
The coldest May 16 in Joliet, IL dropped to 35°F in 1997. That is 14°F below the long-term average low of 49°F.
What is the average temperature on May 16 in Joliet?
On May 16, Joliet averages a high of 70°F and a low of 49°F based on 53 years of NOAA weather observations from JOLIET.
How many years of weather data are available for May 16 in Joliet?
We have 53 years of weather records for May 16 in Joliet, IL, sourced from NOAA's Global Historical Climatology Network. Records include daily high and low temperatures, precipitation, and snowfall data going back to 2025.
May 16 Weather History in Joliet
| Year | High | Low | Precip | Snow |
|---|---|---|---|---|
| 2025 | 89°F | 59°F | 0" | -- |
| 2024 | 71°F | 51°F | 0" | -- |
| 2023 | 69°F | 50°F | 0" | -- |
| 2022 | -- | 51°F | 0.18" | -- |
| 2021 | 59°F | 48°F | 0.13" | -- |
| 2020 | 76°F | 53°F | 0.05" | -- |
| 2019 | 75°F | 51°F | 0" | -- |
| 2018 | 70°F | 51°F | 0" | -- |
| 2017 | 85°F | 53°F | 0" | -- |
| 2016 | 56°F | 37°F | 0" | -- |
| 2015 | 76°F | 61°F | 0.05" | -- |
| 2014 | 54°F | 40°F | 0.51" | -- |
| 2013 | 86°F | 56°F | 0" | -- |
| 2012 | 82°F | 51°F | 0.08" | -- |
| 2011 | 54°F | 39°F | 0.05" | -- |
| 2010 | 65°F | 45°F | 0" | -- |
| 2009 | 59°F | 52°F | 3.84" | -- |
| 2008 | 64°F | 39°F | 0" | -- |
| 2007 | 81°F | 49°F | 0.1" | -- |
| 2006 | 62°F | 47°F | 0" | -- |
| 2005 | 55°F | 40°F | 0" | -- |
| 2004 | 60°F | 41°F | 0" | -- |
| 2003 | 58°F | 49°F | 0" | -- |
| 2002 | 73°F | 44°F | 0" | -- |
| 2001 | 89°F | 62°F | 0" | -- |
| 2000 | 71°F | 42°F | 0" | -- |
| 1999 | 72°F | 56°F | 0" | -- |
| 1998 | 88°F | 58°F | 0" | -- |
| 1997 | 52°F | 35°F | 0.03" | -- |
| 1996 | 59°F | 48°F | 0" | -- |
| 1995 | 72°F | 46°F | 0" | -- |
| 1994 | 76°F | 46°F | 0" | -- |
| 1993 | 74°F | 49°F | 0.25" | -- |
| 1992 | 78°F | 47°F | 0" | -- |
| 1991 | 83°F | 61°F | 0.89" | -- |
| 1990 | 68°F | 57°F | 0.89" | -- |
| 1989 | 66°F | 48°F | 0.05" | -- |
| 1988 | 83°F | 47°F | 0" | -- |
| 1987 | 72°F | 49°F | 0" | -- |
| 1986 | 71°F | 55°F | 0.51" | -- |
| 1985 | 67°F | 54°F | 0" | -- |
| 1984 | 62°F | 36°F | 0" | -- |
| 1983 | 56°F | 39°F | 0" | -- |
| 1981 | 70°F | 44°F | 0" | -- |
| 1980 | 68°F | 48°F | 0" | -- |
| 1979 | 68°F | 43°F | 0" | -- |
| 1978 | 60°F | 46°F | 0" | -- |
| 1977 | 86°F | 62°F | 0" | -- |
| 1976 | 70°F | 55°F | 0.61" | -- |
| 1974 | 80°F | 53°F | -- | -- |
| 1973 | 65°F | 50°F | 0" | -- |
| 1972 | 76°F | 52°F | 0" | -- |
| 1971 | 83°F | 58°F | 0" | -- |
Based on 53 years of data from NOAA station: JOLIET
Monthly Climate Averages
Historical temperature and precipitation averages for Joliet, IL, based on 55+ years of weather data.
Temperatures in Fahrenheit. Precipitation and snowfall in inches.