Weather on September 20
Cody, WY
55 Years of Data
About This Date
September 20th in Cody, WY typically brings mild fall weather, with average highs around 68°F and lows near 42°F — a 26°F daily swing. Over 55 years of records, the warmest September 20th was in 2009 (70°F average), while the coldest was 1983 (30°F) — a 40°F range across recorded history. Precipitation has occurred on 20% of recorded September 20th dates, with snow falling 2% of the time (heaviest snowfall: 3"). The last decade has been 5.6°F warmer on this date compared to 20-30 years ago.
The last decade has been 5.6°F warmer on this date compared to 20-30 years ago.
Planning for September 20th in Cody, WY? Great weather for outdoor activities.
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 75° | 51° | 63° | — | — |
| 2024 | 73° | 46° | 60° | — | — |
| 2023 | 77° | 46° | 62° | — | — |
| 2022 | 81° | 49° | 65° | — | — |
| 2021 | 60° | 42° | 51° | 0.23" | — |
| 2020 | 72° | 52° | 62° | — | — |
| 2019 | 69° | 49° | 59° | — | — |
| 2018 | 60° | 41° | 51° | 0.3" | — |
| 2017 | 74° | 38° | 56° | 0.1" | — |
| 2016 | 79° | 48° | 63° | — | — |
| 2015 | 70° | 53° | 61° | — | — |
| 2014 | 78° | 47° | 62° | — | — |
| 2013 | 72° | 44° | 58° | — | — |
| 2012 | 75° | 47° | 61° | — | — |
| 2011 | 60° | 38° | 49° | — | — |
| 2010 | 73° | 46° | 60° | — | — |
| 2009warmest | 83° | 58° | 70° | — | — |
| 2008 | 78° | 48° | 63° | — | — |
| 2007 | 79° | 43° | 61° | — | — |
| 2006 | 70° | 49° | 59° | — | — |
| 2005 | 79° | 52° | 65° | — | — |
| 2004 | 53° | 41° | 47° | 0.3" | — |
| 2003 | 68° | 49° | 58° | — | — |
| 2002 | 67° | 55° | 61° | — | — |
| 2001 | 72° | 43° | 57° | — | — |
| 2000 | 60° | 32° | 46° | — | — |
| 1999 | 69° | 34° | 51° | — | — |
| 1998 | 63° | 43° | 53° | 1.02" | — |
| 1997 | 60° | 36° | 48° | — | — |
| 1996 | 62° | 38° | 50° | — | — |
| 1995 | 37° | 32° | 35° | 1.5" | 3" |
| 1994 | 76° | 50° | 63° | — | — |
| 1993 | 74° | 43° | 58° | — | — |
| 1992 | 75° | 59° | 67° | — | — |
| 1991 | 78° | 44° | 61° | — | — |
| 1990 | 58° | 47° | 52° | 0.08" | — |
| 1989 | 71° | 41° | 56° | — | — |
| 1988 | 58° | 42° | 50° | — | — |
| 1987 | 72° | 34° | 53° | — | — |
| 1986 | 48° | 31° | 39° | — | — |
| 1985 | 61° | 32° | 46° | 0.58" | — |
| 1984 | 82° | 44° | 63° | — | — |
| 1983coldest | 42° | 18° | 30° | 0.18" | — |
| 1982 | 68° | 39° | 54° | — | — |
| 1981 | 68° | 40° | 54° | — | — |
| 1980 | 75° | 40° | 57° | — | — |
| 1979 | 76° | 43° | 59° | — | — |
| 1978 | 53° | 27° | 40° | 0.03" | — |
| 1977 | 72° | 46° | 59° | — | — |
| 1976 | 67° | 37° | 52° | — | — |
| 1975 | 58° | 30° | 44° | — | — |
| 1974 | 62° | 43° | 52° | — | — |
| 1973 | 69° | 41° | 55° | — | — |
| 1972 | 65° | 38° | 51° | — | — |
| 1971 | 68° | 36° | 52° | 0.05" | — |
Cody, WY Temperature Range by Month
Average monthly highs and lows. The shaded band shows the typical daily temperature range.
Cody, WY Monthly Precipitation
Average rainfall and snowfall per month, in inches.
Cody, WY Daily Temperature Calendar
Average daily high temperature for every day of the year. Each cell is the climatological mean for that calendar day across 55 years of NOAA data.
Best Time to Visit Cody, WY
Cody, WY has no months that meet our "pleasant" threshold — every season has tradeoffs.