Weather on October 18
Green Bay, WI
55 Years of Data
Avg High
56°F
Avg Low
37°F
Warmest
1994
65°F avg
Coldest
1972
30°F avg
About This Date
October 18th in Green Bay, WI typically brings cool fall weather, with average highs around 56°F and lows near 37°F. Over 55 years of records, the warmest October 18th was in 1994 (65°F average), while the coldest was 1972 (30°F) — a 35°F range across recorded history. Precipitation has occurred on 38% of recorded October 18th dates, with snow falling 4% of the time. The last decade has been 3.8°F warmer on this date compared to 20-30 years ago.
The last decade has been 3.8°F warmer on this date compared to 20-30 years ago.
Planning for October 18th in Green Bay, WI? Bring layers as temperatures can vary throughout the day. Consider bringing rain gear or an umbrella.
Warming Trend
1.5°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 75° | 54° | 64° | 0.53" | — |
| 2024 | 70° | 39° | 54° | — | — |
| 2023 | 68° | 40° | 54° | 0.08" | — |
| 2022 | 47° | 35° | 41° | — | — |
| 2021 | 70° | 35° | 52° | — | — |
| 2020 | 49° | 29° | 39° | 0.08" | — |
| 2019 | 56° | 33° | 44° | — | — |
| 2018 | 57° | 26° | 42° | — | — |
| 2017 | 71° | 50° | 61° | — | — |
| 2016 | 70° | 49° | 59° | 0.03" | — |
| 2015 | 54° | 24° | 39° | — | — |
| 2014 | 52° | 33° | 42° | — | — |
| 2013 | 52° | 39° | 45° | 0.13" | — |
| 2012 | 56° | 44° | 50° | 0.2" | — |
| 2011 | 52° | 37° | 44° | 0.03" | — |
| 2010 | 56° | 36° | 46° | — | — |
| 2009 | 53° | 27° | 40° | — | — |
| 2008 | 57° | 33° | 45° | — | — |
| 2007 | 73° | 57° | 65° | 2.06" | — |
| 2006 | 55° | 39° | 47° | 0.46" | — |
| 2005 | 65° | 39° | 52° | — | — |
| 2004 | 50° | 39° | 45° | — | — |
| 2003 | 70° | 44° | 57° | — | — |
| 2002 | 49° | 29° | 39° | 0.64" | 0.1" |
| 2001 | 58° | 34° | 46° | — | — |
| 2000 | 68° | 41° | 55° | — | — |
| 1999 | 49° | 28° | 38° | — | — |
| 1998 | 67° | 39° | 53° | 0.03" | — |
| 1997 | 59° | 34° | 46° | — | — |
| 1996 | 51° | 31° | 41° | — | — |
| 1995 | 57° | 40° | 48° | — | — |
| 1994warmest | 70° | 61° | 65° | 0.05" | — |
| 1993 | 56° | 42° | 49° | — | — |
| 1992 | 40° | 21° | 30° | — | — |
| 1991 | 55° | 32° | 44° | 0.05" | — |
| 1990 | 52° | 32° | 42° | 0.33" | — |
| 1989 | 42° | 27° | 34° | — | — |
| 1988 | 51° | 37° | 44° | 0.05" | — |
| 1987 | 58° | 36° | 47° | — | — |
| 1986 | 55° | 29° | 42° | — | — |
| 1985 | 59° | 49° | 54° | 0.18" | — |
| 1984 | 52° | 42° | 47° | 5.23" | — |
| 1983 | 57° | 36° | 46° | — | — |
| 1982 | 62° | 40° | 51° | — | — |
| 1981 | 54° | 33° | 43° | 1.14" | — |
| 1980 | 47° | 39° | 43° | 0.05" | — |
| 1979 | 59° | 39° | 49° | — | — |
| 1978 | 58° | 39° | 48° | — | — |
| 1977 | 57° | 43° | 50° | 0.3" | — |
| 1976 | 42° | 23° | 33° | 0.13" | 0.7" |
| 1975 | 51° | 31° | 41° | — | — |
| 1974 | 36° | 30° | 33° | — | — |
| 1973 | 53° | 33° | 43° | — | — |
| 1972coldest | 38° | 22° | 30° | — | — |
| 1971 | 61° | 54° | 57° | — | — |
55 years of data from GREEN BAY