Weather on October 15
Green Bay, WI
55 Years of Data
Avg High
56°F
Avg Low
39°F
Warmest
1984
61°F avg
Coldest
1978
37°F avg
About This Date
October 15th in Green Bay, WI typically brings cool fall weather, with average highs around 56°F and lows near 39°F. Over 55 years of records, the warmest October 15th was in 1984 (61°F average), while the coldest was 1978 (37°F) — a 24°F range across recorded history. Rain or other precipitation has occurred on about 31% of October 15th dates historically, with the wettest October 15th recording 4.27" of rain. The last decade has been 1.1°F cooler on this date compared to 20-30 years ago.
The last decade has been 1.1°F cooler on this date compared to 20-30 years ago.
Planning for October 15th in Green Bay, WI? Bring layers as temperatures can vary throughout the day. Consider bringing rain gear or an umbrella.
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 57° | 41° | 49° | 0.1" | — |
| 2024 | 53° | 36° | 44° | — | — |
| 2023 | 56° | 41° | 48° | — | — |
| 2022 | 50° | 33° | 42° | — | — |
| 2021 | 61° | 39° | 50° | — | — |
| 2020 | 51° | 35° | 43° | — | — |
| 2019 | 55° | 36° | 45° | 0.74" | — |
| 2018 | 41° | 34° | 37° | — | — |
| 2017 | 56° | 43° | 49° | 0.46" | — |
| 2016 | 64° | 50° | 57° | — | — |
| 2015 | 63° | 41° | 52° | — | — |
| 2014 | 53° | 47° | 50° | 0.3" | — |
| 2013 | 57° | 43° | 50° | 1.3" | — |
| 2012 | 55° | 37° | 46° | — | — |
| 2011 | 58° | 45° | 51° | — | — |
| 2010 | 61° | 43° | 52° | — | — |
| 2009 | 44° | 33° | 39° | 0.1" | — |
| 2008 | 53° | 42° | 48° | 0.28" | — |
| 2007 | 56° | 49° | 52° | 0.25" | — |
| 2006 | 57° | 24° | 41° | — | — |
| 2005 | 63° | 40° | 51° | — | — |
| 2004 | 51° | 40° | 45° | 0.43" | — |
| 2003 | 57° | 33° | 45° | — | — |
| 2002 | 54° | 30° | 42° | — | — |
| 2001 | 51° | 41° | 46° | — | — |
| 2000 | 55° | 44° | 50° | — | — |
| 1999 | 66° | 41° | 54° | — | — |
| 1998 | 58° | 32° | 45° | — | — |
| 1997 | 55° | 32° | 44° | — | — |
| 1996 | 66° | 40° | 53° | — | — |
| 1995 | 50° | 37° | 44° | — | — |
| 1994 | 62° | 46° | 54° | — | — |
| 1993 | 55° | 41° | 48° | 2.59" | — |
| 1992 | 50° | 38° | 44° | 0.48" | — |
| 1991 | 45° | 29° | 37° | — | — |
| 1990 | 58° | 38° | 48° | — | — |
| 1989 | 63° | 48° | 55° | 4.27" | — |
| 1988 | 72° | 43° | 57° | — | — |
| 1987 | 60° | 48° | 54° | 0.03" | — |
| 1986 | 48° | 32° | 40° | — | — |
| 1985 | 55° | 35° | 45° | — | — |
| 1984warmest | 64° | 58° | 61° | 0.79" | — |
| 1983 | 56° | 32° | 44° | 0.03" | — |
| 1982 | 55° | 40° | 47° | — | — |
| 1981 | 59° | 38° | 48° | 0.36" | — |
| 1980 | 50° | 42° | 46° | — | — |
| 1979 | 64° | 34° | 49° | — | — |
| 1978coldest | 44° | 31° | 37° | 0.86" | — |
| 1977 | 53° | 30° | 42° | — | — |
| 1976 | 55° | 32° | 44° | — | — |
| 1975 | 58° | 39° | 48° | — | — |
| 1974 | 52° | 29° | 40° | — | — |
| 1973 | 66° | 44° | 55° | — | — |
| 1972 | 52° | 29° | 40° | — | — |
| 1971 | 60° | 43° | 51° | — | — |
55 years of data from GREEN BAY