Weather on August 17
Greeley, CO
55 Years of Data
Avg High
88°F
Avg Low
56°F
Warmest
2020
79°F avg
Coldest
1985
61°F avg
About This Date
August 17th in Greeley, CO typically brings warm summer weather, with average highs around 88°F and lows near 56°F — a 32°F daily swing. Over 55 years of records, the warmest August 17th was in 2020 (79°F average), while the coldest was 1985 (61°F) — a 18°F range across recorded history. Rain or other precipitation has occurred on about 22% of August 17th dates historically, with the wettest August 17th recording 0.56" of rain. The last decade has been 4.0°F warmer on this date compared to 20-30 years ago.
The last decade has been 4.0°F warmer on this date compared to 20-30 years ago.
Planning for August 17th in Greeley, CO? Stay hydrated and seek shade during peak afternoon hours.
Warming Trend
0.7°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 95° | 60° | 78° | — | — |
| 2024 | 100° | 57° | 79° | — | — |
| 2023 | 97° | 61° | 79° | — | — |
| 2022 | 87° | 60° | 74° | — | — |
| 2021 | 100° | 57° | 79° | — | — |
| 2020warmest | 97° | 61° | 79° | 0.3" | — |
| 2019 | 87° | 55° | 71° | 0.05" | — |
| 2018 | 86° | 58° | 72° | — | — |
| 2017 | 90° | 52° | 71° | — | — |
| 2016 | 91° | 56° | 73° | — | — |
| 2015 | 89° | 60° | 75° | 0.08" | — |
| 2014 | 92° | 57° | 74° | — | — |
| 2013 | 91° | 59° | 75° | — | — |
| 2012 | 86° | 50° | 68° | — | — |
| 2011 | 94° | 55° | 74° | — | — |
| 2010 | 90° | 54° | 72° | 0.13" | — |
| 2009 | 80° | 48° | 64° | 0.05" | — |
| 2008 | 72° | 52° | 62° | 0.56" | — |
| 2007 | 94° | 59° | 76° | — | — |
| 2006 | 97° | 56° | 76° | — | — |
| 2005 | 87° | 51° | 69° | 0.08" | — |
| 2004 | 98° | 55° | 77° | — | — |
| 2003 | 93° | 58° | 75° | — | — |
| 2002 | 79° | 48° | 63° | — | — |
| 2001 | 87° | 51° | 69° | — | — |
| 2000 | 79° | 63° | 71° | 0.15" | — |
| 1999 | 89° | 63° | 76° | — | — |
| 1998 | 96° | 55° | 76° | — | — |
| 1997 | 78° | 57° | 68° | — | — |
| 1996 | 90° | 53° | 71° | — | — |
| 1995 | 95° | 58° | 76° | — | — |
| 1994 | 92° | 57° | 74° | — | — |
| 1993 | 89° | 58° | 73° | — | — |
| 1992 | 75° | 55° | 65° | 0.05" | — |
| 1991 | 85° | 57° | 71° | — | — |
| 1990 | 85° | 60° | 72° | 0.05" | — |
| 1989 | 87° | 49° | 68° | — | — |
| 1988 | 78° | 59° | 69° | 0.05" | — |
| 1987 | 90° | 56° | 73° | — | — |
| 1986 | 90° | 61° | 75° | — | — |
| 1985coldest | 75° | 47° | 61° | — | — |
| 1984 | 90° | 60° | 75° | — | — |
| 1983 | 92° | 62° | 77° | — | — |
| 1982 | 90° | 60° | 75° | — | — |
| 1981 | 79° | 53° | 66° | — | — |
| 1980 | 88° | 52° | 70° | — | — |
| 1979 | 83° | 56° | 69° | 0.41" | — |
| 1978 | 91° | 53° | 72° | — | — |
| 1977 | 71° | 59° | 65° | — | — |
| 1976 | 93° | 56° | 74° | — | — |
| 1975 | 91° | 50° | 71° | — | — |
| 1974 | 89° | 57° | 73° | — | — |
| 1973 | 95° | 60° | 78° | — | — |
| 1972 | 88° | 56° | 72° | — | — |
| 1971 | 92° | 55° | 73° | — | — |
55 years of data from GREELEY UNC