Weather on September 15
Provo, UT
55 Years of Data
Avg High
83°F
Avg Low
50°F
Warmest
1990
76°F avg
Coldest
1991
54°F avg
About This Date
September 15th in Provo, UT typically brings warm fall weather, with average highs around 83°F and lows near 50°F — a 33°F daily swing. Over 50 years of records, the warmest September 15th was in 1990 (76°F average), while the coldest was 1991 (54°F) — a 22°F range across recorded history. Rain or other precipitation has occurred on about 14% of September 15th dates historically, with the wettest September 15th recording 2.03" of rain. The last decade has been 1.3°F warmer on this date compared to 20-30 years ago.
The last decade has been 1.3°F warmer on this date compared to 20-30 years ago.
Planning for September 15th in Provo, UT? Stay hydrated and seek shade during peak afternoon hours.
Warming Trend
1.2°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 86° | 58° | 72° | — | — |
| 2024 | 88° | 56° | 72° | 0.05" | — |
| 2023 | 81° | 53° | 67° | — | — |
| 2022 | 79° | 55° | 67° | — | — |
| 2021 | 90° | 53° | 71° | — | — |
| 2020 | 90° | 53° | 71° | — | — |
| 2019 | 91° | 54° | 72° | — | — |
| 2018 | 94° | 55° | 74° | — | — |
| 2017 | 66° | 52° | 59° | 2.03" | — |
| 2016 | 70° | 49° | 59° | — | — |
| 2015 | 76° | 58° | 67° | 0.64" | — |
| 2014 | 90° | 54° | 72° | — | — |
| 2013 | 80° | 50° | 65° | — | — |
| 2012 | 88° | 51° | 69° | — | — |
| 2011 | 81° | 54° | 67° | — | — |
| 2010 | 85° | 51° | 68° | — | — |
| 2009 | 76° | 50° | 63° | 0.74" | — |
| 2008 | 85° | 45° | 65° | — | — |
| 2007 | 85° | 60° | 72° | — | — |
| 2006 | 76° | 54° | 65° | 0.41" | — |
| 2005 | 80° | 44° | 62° | — | — |
| 2004 | 76° | 42° | 59° | — | — |
| 2003 | 86° | 46° | 66° | — | — |
| 2002 | 88° | 51° | 69° | — | — |
| 2001 | 86° | 51° | 69° | — | — |
| 2000 | 97° | 55° | 76° | — | — |
| 1999 | 77° | 51° | 64° | — | — |
| 1998 | 87° | 54° | 70° | — | — |
| 1997 | 85° | 62° | 73° | 0.41" | — |
| 1996 | 80° | 46° | 63° | — | — |
| 1995 | 93° | 50° | 72° | — | — |
| 1994 | 76° | 42° | 59° | — | — |
| 1993 | 82° | 43° | 62° | — | — |
| 1992 | 90° | 60° | 75° | — | — |
| 1991coldest | 68° | 39° | 54° | — | — |
| 1990warmest | 95° | 58° | 76° | — | — |
| 1989 | 84° | 45° | 64° | — | — |
| 1988 | 76° | 43° | 59° | — | — |
| 1987 | 85° | 47° | 66° | — | — |
| 1986 | 81° | 50° | 65° | — | — |
| 1985 | 86° | 49° | 67° | — | — |
| 1984 | 90° | 53° | 71° | — | — |
| 1983 | 83° | 50° | 66° | — | — |
| 1982 | 75° | 43° | 59° | 0.18" | — |
| 1981 | 88° | 50° | 69° | — | — |
| 1976 | 83° | — | — | — | — |
| 1975 | 88° | 44° | 66° | — | — |
| 1974 | 73° | 42° | 58° | — | — |
| 1972 | 81° | 38° | 59° | — | — |
| 1971 | 79° | 40° | 59° | — | — |
50 years of data from PROVO RADIO KAYK