Weather on September 18
Santa Clarita, CA
55 Years of Data
About This Date
September 18th in Santa Clarita, CA typically brings warm fall weather, with average highs around 87°F and lows near 55°F — a 32°F daily swing. Over 54 years of records, the warmest September 18th was in 2000 (86°F average), while the coldest was 1978 (59°F) — a 27°F range across recorded history. Rain or other precipitation has occurred on about 2% of September 18th dates historically. The last decade has been 2.4°F cooler on this date compared to 20-30 years ago.
The last decade has been 2.4°F cooler on this date compared to 20-30 years ago.
Planning for September 18th in Santa Clarita, CA? Stay hydrated and seek shade during peak afternoon hours.
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 79° | 63° | 71° | — | — |
| 2024 | 77° | 51° | 64° | — | — |
| 2023 | 77° | 59° | 68° | — | — |
| 2022 | 75° | 58° | 66° | — | — |
| 2021 | 80° | 54° | 67° | — | — |
| 2020 | 96° | 65° | 80° | — | — |
| 2019 | 81° | 58° | 69° | — | — |
| 2018 | 87° | 56° | 71° | — | — |
| 2017 | 83° | 56° | 69° | — | — |
| 2016 | 92° | 76° | 84° | — | — |
| 2015 | 95° | 58° | 76° | — | — |
| 2014 | 84° | 62° | 73° | — | — |
| 2013 | 85° | 59° | 72° | — | — |
| 2012 | 98° | 60° | 79° | — | — |
| 2011 | 95° | 56° | 75° | — | — |
| 2010 | 93° | 57° | 75° | — | — |
| 2009 | 101° | 66° | 83° | — | — |
| 2008 | 93° | 62° | 78° | — | — |
| 2007 | 80° | 51° | 66° | — | — |
| 2006 | 90° | 60° | 75° | — | — |
| 2005 | 81° | 55° | 68° | — | — |
| 2004 | 82° | 57° | 70° | — | — |
| 2003 | 98° | 59° | 79° | — | — |
| 2002 | 98° | 54° | 76° | — | — |
| 2001 | 86° | 56° | 71° | — | — |
| 2000warmest | 108° | 64° | 86° | — | — |
| 1999 | 69° | 56° | 62° | — | — |
| 1998 | 90° | 58° | 74° | — | — |
| 1997 | 87° | 62° | 75° | — | — |
| 1996 | 91° | 53° | 72° | — | — |
| 1995 | 91° | 59° | 75° | — | — |
| 1994 | 88° | 61° | 74° | — | — |
| 1993 | 81° | 45° | 63° | — | — |
| 1992 | 91° | 60° | 76° | — | — |
| 1991 | 90° | 56° | 73° | — | — |
| 1990 | 80° | 58° | 69° | — | — |
| 1989 | 75° | 48° | 62° | — | — |
| 1988 | 80° | 44° | 62° | — | — |
| 1987 | 88° | 46° | 67° | — | — |
| 1986 | 76° | 46° | 61° | — | — |
| 1985 | 80° | 43° | 61° | — | — |
| 1984 | 98° | 60° | 79° | — | — |
| 1983 | 95° | 55° | 75° | — | — |
| 1982 | 76° | 58° | 67° | 0.38" | — |
| 1981 | 100° | 56° | 78° | — | — |
| 1980 | 97° | 52° | 74° | — | — |
| 1978coldest | 73° | 44° | 59° | — | — |
| 1977 | 78° | 45° | 61° | — | — |
| 1976 | 77° | 49° | 63° | — | — |
| 1975 | 95° | 56° | 75° | — | — |
| 1974 | 102° | 46° | 74° | — | — |
| 1973 | 83° | 42° | 62° | — | — |
| 1972 | 85° | 45° | 65° | — | — |
| 1971 | 84° | 52° | 68° | — | — |
Santa Clarita, CA Temperature Range by Month
Average monthly highs and lows. The shaded band shows the typical daily temperature range.
Santa Clarita, CA Monthly Precipitation
Average rainfall and snowfall per month, in inches.
Santa Clarita, 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 Clarita, CA
Santa Clarita, CA has no months that meet our "pleasant" threshold — every season has tradeoffs.