Weather on September 17
Tempe, AZ
55 Years of Data
About This Date
September 17th in Tempe, AZ typically brings hot fall weather, with average highs around 99°F and lows near 69°F — a 30°F daily swing. Over 56 years of records, the warmest September 17th was in 1984 (93°F average), while the coldest was 1978 (74°F) — a 19°F range across recorded history. Rain or other precipitation has occurred on about 7% of September 17th dates historically. The last decade has been 2.8°F cooler on this date compared to 20-30 years ago.
The last decade has been 2.8°F cooler on this date compared to 20-30 years ago.
Planning for September 17th in Tempe, AZ? Stay hydrated and seek shade during peak afternoon hours.
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2026 | 90° | 75° | 82° | — | — |
| 2025 | 101° | 86° | 93° | — | — |
| 2024 | 94° | 69° | 81° | — | — |
| 2023 | 105° | 69° | 87° | — | — |
| 2022 | 99° | 63° | 81° | — | — |
| 2021 | — | 67° | — | — | — |
| 2020 | 108° | 69° | 88° | — | — |
| 2019 | 98° | 66° | 82° | 0.02" | — |
| 2018 | 106° | 73° | 89° | — | — |
| 2017 | 97° | 67° | 82° | — | — |
| 2016 | 99° | 61° | 80° | — | — |
| 2015 | 98° | 65° | 81° | — | — |
| 2014 | 98° | 69° | 84° | 0.27" | — |
| 2013 | — | 79° | — | — | — |
| 2012 | 97° | 59° | 78° | — | — |
| 2011 | 95° | 70° | 82° | — | — |
| 2010 | 105° | 67° | 86° | — | — |
| 2009 | 99° | 64° | 81° | — | — |
| 2008 | 96° | 67° | 81° | — | — |
| 2007 | 96° | 78° | 87° | — | — |
| 2006 | 95° | 62° | 79° | — | — |
| 2005 | 100° | 65° | 82° | — | — |
| 2004 | 100° | 73° | 87° | — | — |
| 2003 | 101° | 75° | 88° | — | — |
| 2002 | 101° | 75° | 88° | — | — |
| 2001 | 101° | 77° | 89° | — | — |
| 2000 | 105° | 77° | 91° | — | — |
| 1999 | 98° | 74° | 86° | — | — |
| 1998 | 105° | 77° | 91° | — | — |
| 1997 | 103° | 79° | 91° | — | — |
| 1996 | 89° | 71° | 80° | — | — |
| 1995 | 100° | 72° | 86° | — | — |
| 1994 | 104° | 69° | 87° | — | — |
| 1993 | 92° | 58° | 75° | — | — |
| 1992 | 101° | 76° | 88° | — | — |
| 1991 | 102° | 72° | 87° | — | — |
| 1990 | 95° | 74° | 84° | — | — |
| 1989 | 101° | 72° | 86° | 0.21" | — |
| 1988 | 102° | 69° | 86° | — | — |
| 1987 | 93° | 69° | 81° | — | — |
| 1986 | 96° | 62° | 79° | — | — |
| 1985 | 101° | 67° | 84° | — | — |
| 1984warmest | 104° | 82° | 93° | — | — |
| 1983 | 98° | 76° | 87° | — | — |
| 1982 | 89° | 71° | 80° | 0.04" | — |
| 1981 | 105° | 73° | 89° | — | — |
| 1980 | 103° | 60° | 81° | — | — |
| 1979 | 91° | 61° | 76° | — | — |
| 1978coldest | 91° | 57° | 74° | — | — |
| 1977 | 97° | 60° | 78° | — | — |
| 1976 | 98° | 60° | 79° | — | — |
| 1975 | 107° | 72° | 89° | — | — |
| 1974 | 97° | 63° | 80° | — | — |
| 1973 | 103° | 62° | 82° | — | — |
| 1972 | 105° | 65° | 85° | — | — |
| 1971 | 106° | 70° | 88° | — | — |
Tempe, AZ Temperature Range by Month
Average monthly highs and lows. The shaded band shows the typical daily temperature range.
Tempe, AZ Monthly Precipitation
Average rainfall per month, in inches.
Tempe, AZ Daily Temperature Calendar
Average daily high temperature for every day of the year. Each cell is the climatological mean for that calendar day across 55 years of NOAA data.
Best Time to Visit Tempe, AZ
Most pleasant months in Tempe, AZ: January, February, March, November, December.
What to expect on September 17th
This page shows what actually happened each year. For the odds — typical high and low, and how often it stays dry — see the climatological outlook for this date.
September 17th outlook →