Weather on July 3
San Marcos, CA
55 Years of Data
About This Date
July 3rd in San Marcos, CA typically brings warm summer weather, with average highs around 85°F and lows near 62°F. Over 56 years of records, the warmest July 3rd was in 1985 (85°F average), while the coldest was 2010 (64°F) — a 21°F range across recorded history. This date has historically been dry, with little recorded precipitation. 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 July 3rd in San Marcos, CA? Stay hydrated and seek shade during peak afternoon hours.
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2026 | 89° | 62° | 76° | — | — |
| 2025 | 84° | 61° | 72° | — | — |
| 2024 | 90° | 64° | 77° | — | — |
| 2023 | 89° | 63° | 76° | — | — |
| 2022 | 83° | 63° | 73° | — | — |
| 2021 | 87° | 63° | 75° | — | — |
| 2020 | 89° | 59° | 74° | — | — |
| 2019 | 83° | 62° | 72° | — | — |
| 2018 | 83° | 64° | 73° | — | — |
| 2017 | 92° | 61° | 76° | — | — |
| 2016 | 81° | 63° | 72° | — | — |
| 2015 | 85° | 65° | 75° | — | — |
| 2014 | 90° | 63° | 76° | — | — |
| 2013 | 88° | 65° | 76° | — | — |
| 2012 | 78° | 61° | 69° | — | — |
| 2011 | 90° | 62° | 76° | — | — |
| 2010coldest | 68° | 61° | 64° | — | — |
| 2009 | 70° | 62° | 66° | — | — |
| 2008 | 72° | 61° | 66° | — | — |
| 2007 | 75° | 62° | 69° | — | — |
| 2006 | 82° | 71° | 77° | — | — |
| 2005 | 87° | 60° | 74° | — | — |
| 2004 | 80° | 60° | 70° | — | — |
| 2003 | 91° | 68° | 80° | — | — |
| 2002 | 85° | 62° | 73° | — | — |
| 2001 | 92° | 69° | 80° | — | — |
| 2000 | 86° | 61° | 73° | — | — |
| 1999 | 77° | 60° | 69° | — | — |
| 1998 | 78° | 62° | 70° | — | — |
| 1997 | 94° | 57° | 75° | — | — |
| 1996 | 92° | 68° | 80° | — | — |
| 1995 | 81° | 59° | 70° | — | — |
| 1994 | 87° | 66° | 77° | — | — |
| 1993 | 84° | 64° | 74° | — | — |
| 1992 | 82° | 60° | 71° | — | — |
| 1991 | 83° | 60° | 71° | — | — |
| 1990 | 88° | 63° | 75° | — | — |
| 1989 | 89° | 58° | 73° | — | — |
| 1988 | 82° | 61° | 71° | — | — |
| 1987 | 80° | 57° | 69° | — | — |
| 1986 | 87° | 68° | 78° | — | — |
| 1985warmest | 103° | 68° | 85° | — | — |
| 1984 | 90° | 64° | 77° | — | — |
| 1983 | 81° | 62° | 71° | — | — |
| 1982 | 85° | 58° | 71° | — | — |
| 1981 | 102° | 61° | 81° | — | — |
| 1980 | 85° | 62° | 73° | — | — |
| 1979 | 78° | 56° | 67° | — | — |
| 1978 | 85° | 52° | 68° | — | — |
| 1977 | 83° | 63° | 73° | — | — |
| 1976 | 82° | 60° | 71° | — | — |
| 1975 | 79° | 56° | 67° | — | — |
| 1974 | 84° | 56° | 70° | — | — |
| 1973 | 96° | 61° | 78° | — | — |
| 1972 | 81° | 58° | 69° | — | — |
| 1971 | 84° | 56° | 70° | — | — |
San Marcos, CA Temperature Range by Month
Average monthly highs and lows. The shaded band shows the typical daily temperature range.
San Marcos, CA Monthly Precipitation
Average rainfall per month, in inches.
San Marcos, 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 San Marcos, CA
Most pleasant months in San Marcos, CA: January, February, March, April, May, June, September, October, November, December.
What to expect on July 3rd
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.
July 3rd outlook →