Weather on December 30
Joliet, IL
55 Years of Data
Avg High
35°F
Avg Low
20°F
Warmest
2022
51°F avg
Coldest
1983
-4°F avg
About This Date
December 30th in Joliet, IL typically brings cold winter weather, with average highs around 35°F and lows near 20°F. Over 54 years of records, the warmest December 30th was in 2022 (51°F average), while the coldest was 1983 (-4°F) — a 55°F range across recorded history. Precipitation has occurred on 41% of recorded December 30th dates, with snow falling 9% of the time (heaviest snowfall: 2.5"). The last decade has been 3.0°F warmer on this date compared to 20-30 years ago.
The last decade has been 3.0°F warmer on this date compared to 20-30 years ago.
Planning for December 30th in Joliet, IL? Bundle up with warm layers and protect extremities from the cold. Consider bringing rain gear or an umbrella.
Warming Trend
1.4°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 25° | 12° | 18° | — | — |
| 2024 | 46° | 33° | 40° | 1.02" | — |
| 2023 | 41° | 28° | 35° | — | — |
| 2022warmest | 58° | 44° | 51° | — | — |
| 2021 | 44° | 26° | 35° | — | — |
| 2020 | 33° | 16° | 24° | 1.57" | 2.1" |
| 2019 | 56° | 32° | 44° | 0.71" | — |
| 2018 | — | 19° | — | — | — |
| 2017 | 14° | 8° | 11° | 0.33" | 2.5" |
| 2016 | 34° | 24° | 29° | — | — |
| 2015 | 33° | 28° | 31° | — | — |
| 2014 | 34° | 13° | 23° | — | — |
| 2013 | 35° | 1° | 18° | 0.03" | — |
| 2012 | 32° | 14° | 23° | — | — |
| 2011 | 48° | 34° | 41° | 0.15" | — |
| 2010 | 38° | 15° | 26° | — | — |
| 2009 | 22° | 5° | 13° | — | — |
| 2008 | 43° | 29° | 36° | — | — |
| 2007 | 28° | 22° | 25° | — | — |
| 2006 | 52° | 40° | 46° | 0.13" | — |
| 2005 | 37° | 33° | 35° | 0.03" | — |
| 2004 | 48° | 28° | 38° | — | — |
| 2003 | 42° | 25° | 33° | — | — |
| 2002 | 48° | 26° | 37° | — | — |
| 2001 | 18° | 5° | 11° | — | — |
| 2000 | 26° | 14° | 20° | 0.25" | 2" |
| 1999 | 36° | 47° | 41° | — | — |
| 1998 | 36° | 2° | 19° | 0.05" | — |
| 1997 | 33° | 20° | 26° | 0.38" | — |
| 1996 | 34° | 24° | 29° | — | — |
| 1995 | 35° | 13° | 24° | — | — |
| 1994 | 37° | 26° | 32° | — | — |
| 1993 | 22° | 0° | 11° | 0.03" | 0.1" |
| 1992 | 44° | 39° | 42° | 1.91" | — |
| 1991 | 34° | 27° | 30° | — | — |
| 1990 | 42° | 6° | 24° | 0.53" | — |
| 1989 | 37° | 32° | 35° | 0.1" | — |
| 1988 | 20° | 5° | 12° | — | — |
| 1987 | 32° | 14° | 23° | — | — |
| 1986 | 38° | 33° | 35° | 0.05" | — |
| 1985 | 18° | 4° | 11° | — | — |
| 1984 | 60° | 28° | 44° | 0.3" | — |
| 1983coldest | 3° | -11° | -4° | — | 0.3" |
| 1982 | 25° | 16° | 20° | — | — |
| 1981 | 21° | 2° | 11° | — | — |
| 1980 | 36° | 29° | 32° | — | — |
| 1979 | 45° | 19° | 32° | — | — |
| 1978 | 39° | 29° | 34° | 2.29" | — |
| 1977 | 39° | 16° | 27° | — | — |
| 1976 | 14° | -5° | 5° | 0.25" | — |
| 1975 | 35° | 27° | 31° | 1.07" | — |
| 1973 | 26° | 13° | 19° | — | — |
| 1972 | 48° | 26° | 37° | 0.36" | — |
| 1971 | 45° | 31° | 38° | 3.86" | — |
54 years of data from JOLIET