Weather on September 16
Santa Rosa, CA
55 Years of Data
About This Date
September 16th in Santa Rosa, CA typically brings pleasant fall weather, with average highs around 79°F and lows near 52°F — a 27°F daily swing. Over 56 years of records, the warmest September 16th was in 1994 (75°F average), while the coldest was 1989 (56°F) — a 19°F range across recorded history. Rain or other precipitation has occurred on about 9% of September 16th dates historically, with the wettest September 16th recording 1.56" of rain. Temperatures on this date have remained relatively stable over the past several decades.
Temperatures on this date have remained relatively stable over the past several decades.
Planning for September 16th in Santa Rosa, CA? Great weather for outdoor activities.
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2026 | 74° | 57° | 65° | — | — |
| 2025 | 90° | 53° | 71° | — | — |
| 2024 | 76° | 52° | 64° | — | — |
| 2023 | 74° | 56° | 65° | — | — |
| 2022 | 81° | 50° | 65° | — | — |
| 2021 | 71° | 55° | 63° | — | — |
| 2020 | 85° | 56° | 70° | — | — |
| 2019 | 83° | 52° | 67° | 0.08" | — |
| 2018 | 81° | 46° | 63° | — | — |
| 2017 | 79° | 54° | 66° | — | — |
| 2016 | 81° | 50° | 65° | — | — |
| 2015 | 63° | 51° | 57° | — | — |
| 2014 | 83° | 54° | 68° | — | — |
| 2013 | 83° | 54° | 68° | — | — |
| 2012 | 76° | 47° | 61° | — | — |
| 2011 | 75° | 49° | 62° | — | — |
| 2010 | 83° | 49° | 66° | — | — |
| 2009 | 87° | 52° | 69° | — | — |
| 2008 | 74° | 51° | 62° | — | — |
| 2007 | 80° | 49° | 64° | — | — |
| 2006 | 79° | 44° | 61° | — | — |
| 2005 | 77° | 51° | 64° | — | — |
| 2004 | 94° | 55° | 74° | — | — |
| 2003 | 80° | 51° | 66° | — | — |
| 2002 | 78° | 50° | 64° | — | — |
| 2001 | 71° | 52° | 61° | — | — |
| 2000 | 84° | 54° | 69° | — | — |
| 1999 | 79° | 50° | 64° | — | — |
| 1998 | 79° | 53° | 66° | — | — |
| 1997 | 80° | 54° | 67° | — | — |
| 1996 | 78° | 49° | 63° | — | — |
| 1995 | 76° | 51° | 63° | — | — |
| 1994warmest | 95° | 55° | 75° | — | — |
| 1993 | 70° | 51° | 60° | — | — |
| 1992 | 77° | 49° | 63° | — | — |
| 1991 | 83° | 52° | 67° | — | — |
| 1990 | 83° | 54° | 68° | — | — |
| 1989coldest | 59° | 54° | 56° | 1.56" | — |
| 1988 | 74° | 49° | 61° | — | — |
| 1987 | 82° | 48° | 65° | — | — |
| 1986 | 72° | 55° | 63° | 1.54" | — |
| 1985 | 75° | 51° | 63° | — | — |
| 1984 | 93° | 52° | 72° | — | — |
| 1983 | 73° | 53° | 63° | — | — |
| 1982 | 76° | 46° | 61° | 0.06" | — |
| 1981 | 76° | 54° | 65° | — | — |
| 1980 | 77° | 47° | 62° | — | — |
| 1979 | 94° | 53° | 73° | — | — |
| 1978 | 88° | 52° | 70° | — | — |
| 1977 | 71° | 52° | 61° | 0.08" | — |
| 1976 | 77° | 53° | 65° | — | — |
| 1975 | 82° | 49° | 65° | — | — |
| 1974 | 81° | 51° | 66° | — | — |
| 1973 | 74° | 52° | 63° | — | — |
| 1972 | 70° | 51° | 60° | — | — |
| 1971 | 95° | 54° | 74° | — | — |
Santa Rosa, CA Temperature Range by Month
Average monthly highs and lows. The shaded band shows the typical daily temperature range.
Santa Rosa, CA Monthly Precipitation
Average rainfall per month, in inches.
Santa Rosa, CA 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 Santa Rosa, CA
Most pleasant months in Santa Rosa, CA: March, April, May, June, July, September, October, November.
What to expect on September 16th
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 16th outlook →