Weather on September 21
Tyler, TX
55 Years of Data
Avg High
88°F
Avg Low
65°F
Warmest
2005
86°F avg
Coldest
1991
62°F avg
About This Date
September 21st in Tyler, TX typically brings warm fall weather, with average highs around 88°F and lows near 65°F. Over 55 years of records, the warmest September 21st was in 2005 (86°F average), while the coldest was 1991 (62°F) — a 24°F range across recorded history. Rain or other precipitation has occurred on about 24% of September 21st dates historically, with the wettest September 21st recording 6.81" of rain. The last decade has been 3.4°F warmer on this date compared to 20-30 years ago.
The last decade has been 3.4°F warmer on this date compared to 20-30 years ago.
Planning for September 21st in Tyler, TX? Stay hydrated and seek shade during peak afternoon hours.
Warming Trend
1.6°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 92° | 69° | 80° | — | — |
| 2024 | 98° | 72° | 85° | — | — |
| 2023 | 90° | 72° | 81° | — | — |
| 2022 | 93° | 71° | 82° | — | — |
| 2021 | 93° | 72° | 82° | — | — |
| 2020 | 72° | 65° | 68° | 1.27" | — |
| 2019 | 91° | 74° | 82° | — | — |
| 2018 | 91° | 75° | 83° | 0.74" | — |
| 2017 | 93° | 76° | 84° | 0.03" | — |
| 2016 | 92° | 68° | 80° | — | — |
| 2015 | 93° | 68° | 81° | — | — |
| 2014 | 91° | 67° | 79° | — | — |
| 2013 | 82° | 64° | 73° | 0.15" | — |
| 2012 | 88° | 59° | 73° | — | — |
| 2011 | 91° | 66° | 79° | — | — |
| 2010 | 91° | 69° | 80° | 0.1" | — |
| 2009 | 90° | 66° | 78° | — | — |
| 2008 | 85° | 64° | 74° | — | — |
| 2007 | 90° | 62° | 76° | — | — |
| 2006 | 87° | 60° | 74° | — | — |
| 2005warmest | 100° | 71° | 86° | — | — |
| 2004 | 88° | 66° | 77° | — | — |
| 2003 | 78° | 69° | 74° | — | — |
| 2002 | 85° | 55° | 70° | — | — |
| 2001 | 83° | 67° | 75° | 1.91" | — |
| 2000 | 86° | 70° | 78° | — | — |
| 1999 | 84° | 62° | 73° | — | — |
| 1998 | 94° | 74° | 84° | — | — |
| 1997 | 93° | 71° | 82° | — | — |
| 1996 | 85° | 64° | 74° | 2.51" | — |
| 1995 | 75° | 62° | 69° | — | — |
| 1994 | 87° | 59° | 73° | — | — |
| 1993 | 95° | 72° | 83° | — | — |
| 1992 | 94° | 70° | 82° | 0.28" | — |
| 1991coldest | 74° | 51° | 62° | — | — |
| 1990 | 91° | 74° | 82° | — | — |
| 1989 | 89° | 59° | 74° | — | — |
| 1988 | 94° | 71° | 82° | — | — |
| 1987 | 87° | 59° | 73° | — | — |
| 1986 | 90° | 70° | 80° | 1.02" | — |
| 1985 | 89° | 67° | 78° | — | — |
| 1984 | 88° | 62° | 75° | — | — |
| 1983 | 92° | 45° | 68° | 0.13" | — |
| 1982 | 81° | 55° | 68° | — | — |
| 1981 | 84° | 53° | 69° | — | — |
| 1980 | 90° | 67° | 78° | 0.03" | — |
| 1979 | 68° | 60° | 64° | 6.81" | — |
| 1978 | 93° | 70° | 81° | — | — |
| 1977 | 89° | 58° | 73° | — | — |
| 1976 | 73° | 58° | 65° | 0.97" | — |
| 1975 | 81° | 58° | 69° | — | — |
| 1974 | 88° | 68° | 78° | — | — |
| 1973 | 88° | 65° | 76° | — | — |
| 1972 | 95° | 69° | 82° | — | — |
| 1971 | 75° | 53° | 64° | — | — |
55 years of data from TYLER