Weather on October 21
Greeley, CO
55 Years of Data
Avg High
67°F
Avg Low
35°F
Warmest
2022
62°F avg
Coldest
1984
28°F avg
About This Date
October 21st in Greeley, CO typically brings mild fall weather, with average highs around 67°F and lows near 35°F — a 32°F daily swing. Over 55 years of records, the warmest October 21st was in 2022 (62°F average), while the coldest was 1984 (28°F) — a 34°F range across recorded history. Precipitation has occurred on 16% of recorded October 21st dates, with snow falling 2% of the time. The last decade has been 4.7°F warmer on this date compared to 20-30 years ago.
The last decade has been 4.7°F warmer on this date compared to 20-30 years ago.
Planning for October 21st in Greeley, CO? Great weather for outdoor activities.
Warming Trend
1.2°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 72° | 30° | 51° | — | — |
| 2024 | 73° | 45° | 59° | 0.03" | — |
| 2023 | 82° | 41° | 62° | — | — |
| 2022warmest | 81° | 44° | 62° | — | — |
| 2021 | 64° | 32° | 48° | — | — |
| 2020 | 60° | 35° | 48° | — | — |
| 2019 | 55° | 37° | 46° | — | — |
| 2018 | 80° | 36° | 58° | — | — |
| 2017 | 75° | 42° | 59° | — | — |
| 2016 | 78° | 32° | 55° | — | — |
| 2015 | 70° | 46° | 58° | 1.02" | — |
| 2014 | 79° | 41° | 60° | — | — |
| 2013 | 60° | 28° | 44° | — | — |
| 2012 | 73° | 40° | 56° | — | — |
| 2011 | 74° | 35° | 54° | — | — |
| 2010 | 78° | 33° | 56° | — | — |
| 2009 | 44° | 34° | 39° | 0.38" | — |
| 2008 | 57° | 42° | 50° | 0.46" | — |
| 2007 | 75° | 34° | 54° | 0.18" | — |
| 2006 | 54° | 30° | 42° | — | — |
| 2005 | 68° | 46° | 57° | 0.03" | — |
| 2004 | 70° | 37° | 53° | — | — |
| 2003 | 83° | 39° | 61° | — | — |
| 2002 | 61° | 29° | 45° | — | — |
| 2001 | 56° | 36° | 46° | — | — |
| 2000 | 74° | 34° | 54° | — | — |
| 1999 | 77° | 33° | 55° | — | — |
| 1998 | 64° | 28° | 46° | — | — |
| 1997 | 57° | 41° | 49° | — | — |
| 1996 | 46° | 24° | 35° | — | — |
| 1995 | 74° | 35° | 54° | — | — |
| 1994 | 69° | 35° | 52° | — | — |
| 1993 | 63° | 30° | 46° | — | — |
| 1992 | 82° | 36° | 59° | — | — |
| 1991 | 75° | 34° | 54° | — | — |
| 1990 | 54° | 24° | 39° | — | — |
| 1989 | 75° | 35° | 55° | — | — |
| 1988 | 70° | 34° | 52° | — | — |
| 1987 | 73° | 24° | 49° | — | — |
| 1986 | 49° | 38° | 43° | — | — |
| 1985 | 71° | 32° | 52° | — | — |
| 1984coldest | 30° | 26° | 28° | 0.25" | 0.7" |
| 1983 | 69° | 31° | 50° | — | — |
| 1982 | 64° | 27° | 45° | — | — |
| 1981 | 42° | 31° | 36° | — | — |
| 1980 | 70° | 29° | 49° | — | — |
| 1979 | 45° | 37° | 41° | 0.89" | — |
| 1978 | 67° | 48° | 57° | — | — |
| 1977 | 76° | 47° | 61° | — | — |
| 1976 | 62° | 25° | 43° | — | — |
| 1975 | 79° | 32° | 55° | — | — |
| 1974 | 78° | 40° | 59° | — | — |
| 1973 | 77° | 40° | 58° | — | — |
| 1972 | 56° | 41° | 48° | 0.41" | — |
| 1971 | 65° | 32° | 48° | — | — |
55 years of data from GREELEY UNC