Weather on August 21
Provo, UT
55 Years of Data
Avg High
91°F
Avg Low
60°F
Warmest
2025
86°F avg
Coldest
1974
58°F avg
About This Date
August 21st in Provo, UT typically brings hot summer weather, with average highs around 91°F and lows near 60°F — a 31°F daily swing. Over 49 years of records, the warmest August 21st was in 2025 (86°F average), while the coldest was 1974 (58°F) — a 28°F range across recorded history. Rain or other precipitation has occurred on about 29% of August 21st dates historically, with the wettest August 21st recording 2.21" of rain. The last decade has been 2.6°F warmer on this date compared to 20-30 years ago.
The last decade has been 2.6°F warmer on this date compared to 20-30 years ago.
Planning for August 21st in Provo, UT? Stay hydrated and seek shade during peak afternoon hours.
Warming Trend
1.4°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025warmest | 102° | 69° | 86° | — | — |
| 2024 | 97° | 64° | 80° | — | — |
| 2023 | 82° | 66° | 74° | — | — |
| 2022 | 89° | 58° | 73° | — | — |
| 2021 | 87° | 58° | 72° | 0.03" | — |
| 2020 | 98° | 65° | 81° | — | — |
| 2019 | 98° | 59° | 79° | — | — |
| 2018 | 89° | 62° | 76° | 0.15" | — |
| 2017 | 95° | 62° | 79° | — | — |
| 2016 | 94° | 57° | 75° | — | — |
| 2015 | 97° | 58° | 77° | — | — |
| 2014 | 84° | 61° | 72° | 0.05" | — |
| 2013 | 95° | 64° | 80° | — | — |
| 2012 | 95° | 58° | 76° | — | — |
| 2011 | 95° | 62° | 79° | — | — |
| 2010 | 98° | 62° | 80° | — | — |
| 2009 | 98° | 58° | 78° | — | — |
| 2008 | 97° | 57° | 77° | — | — |
| 2007 | 95° | 58° | 76° | — | — |
| 2006 | 96° | 61° | 78° | — | — |
| 2005 | 91° | 58° | 74° | — | — |
| 2004 | 82° | 57° | 70° | — | — |
| 2003 | 93° | 69° | 81° | — | — |
| 2002 | 91° | 61° | 76° | — | — |
| 2001 | 86° | 58° | 72° | 0.48" | — |
| 2000 | 92° | 54° | 73° | — | — |
| 1999 | 86° | 65° | 75° | 0.03" | — |
| 1998 | 92° | 62° | 77° | 0.08" | — |
| 1997 | 94° | 63° | 78° | 0.05" | — |
| 1996 | 90° | 57° | 73° | — | — |
| 1995 | 92° | 67° | 79° | — | — |
| 1994 | 95° | 63° | 79° | 0.05" | — |
| 1993 | 83° | 59° | 71° | 0.03" | — |
| 1992 | 99° | 65° | 82° | — | — |
| 1991 | 97° | 58° | 77° | — | — |
| 1990 | 85° | 56° | 70° | — | — |
| 1989 | 88° | 55° | 71° | — | — |
| 1988 | 87° | 59° | 73° | — | — |
| 1987 | 85° | 56° | 70° | — | — |
| 1986 | 93° | 61° | 77° | 2.21" | — |
| 1985 | 94° | 65° | 79° | — | — |
| 1984 | 86° | 54° | 70° | — | — |
| 1983 | 85° | 60° | 72° | 0.33" | — |
| 1982 | 96° | 64° | 80° | — | — |
| 1981 | 90° | 63° | 76° | 0.36" | — |
| 1975 | 81° | 51° | 66° | 0.1" | — |
| 1974coldest | 80° | 36° | 58° | — | — |
| 1973 | 85° | 61° | 73° | 0.33" | — |
| 1971 | 90° | 57° | 73° | — | — |
49 years of data from PROVO RADIO KAYK