March weather in Fountain Valley, CA
The average temperature in Fountain Valley in March is 60.0°F (52.3°F–67.7°F). Average precipitation: 1.62 inches.
March is a spring month in Fountain Valley, and is cooler than the annual average of 64.9°F. Daily temperatures swing about 15.4°F between overnight low and afternoon high. Expect about 6 days with precipitation. Daylight averages about 11h 47m. For travel, March is one of the best months of the year to visit.
Avg High
67.7°F
Avg Low
52.3°F
Precipitation
1.62 in
Daylight
11h 47m
March records in Fountain Valley
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| March 1 | 82.9°F (2009) | 41.0°F (2007) | 0.65 in (2014) |
| March 2 | 81.0°F (2013) | 39.9°F (2023) | 0.58 in (2015) |
| March 3 | 81.0°F (2020) | 43.0°F (2002) | 0.48 in (2019) |
| March 4 | 87.1°F (2012) | 42.1°F (2002) | 0.22 in (2000) |
| March 5 | 81.0°F (2015) | 44.1°F (2003) | 0.73 in (2000) |
| March 6 | 90.0°F (2015) | 43.0°F (2000) | 0.72 in (2024) |
| March 7 | 91.0°F (2004) | 43.0°F (2012) | 0.32 in (2002) |
| March 8 | 91.0°F (2004) | 43.0°F (2012) | 0.46 in (2000) |
| March 9 | 86.0°F (2014) | 46.9°F (2002) | 0.13 in (2020) |
| March 10 | 81.0°F (2015) | 43.0°F (1999) | 0.79 in (2023) |
| March 11 | 95.0°F (2007) | 44.1°F (2006) | 0.45 in (2016) |
| March 12 | 93.0°F (2026) | 42.1°F (2006) | 0.94 in (2020) |
| March 13 | 91.9°F (2015) | 42.1°F (2006) | 0.63 in (2025) |
| March 14 | 91.0°F (2015) | 43.0°F (2006) | 1.05 in (2023) |
| March 15 | 91.0°F (2015) | 12.2°F (2008) | 2.19 in (2003) |
| March 16 | 88.0°F (2014) | 44.1°F (1999) | 0.65 in (2003) |
| March 17 | 95.0°F (2026) | 44.1°F (1999) | 0.55 in (2012) |
| March 18 | 89.1°F (2026) | 44.1°F (2002) | 0.08 in (2005) |
| March 19 | 88.0°F (2026) | 44.1°F (2002) | 0.43 in (2022) |
| March 20 | 87.1°F (2026) | 46.0°F (2002) | 0.81 in (2011) |
| March 21 | 79.0°F (2026) | 46.9°F (2011) | 1.02 in (2023) |
| March 22 | 80.1°F (2007) | 45.0°F (2006) | 0.61 in (2020) |
| March 23 | 88.0°F (2008) | 43.0°F (2009) | 0.64 in (2011) |
| March 24 | 82.0°F (2008) | 45.0°F (2011) | 0.05 in (2011) |
| March 25 | 75.0°F (2015) | 48.0°F (2002) | 0.79 in (2012) |
| March 26 | 87.1°F (2015) | 46.9°F (1999) | 0.02 in (2012) |
| March 27 | 86.0°F (2015) | 46.9°F (2023) | 0.03 in (2006) |
| March 28 | 87.1°F (2004) | 46.9°F (2007) | 0.80 in (2006) |
| March 29 | 88.0°F (2004) | 48.0°F (2007) | 0.45 in (2023) |
| March 30 | 90.0°F (2003) | 48.9°F (2023) | 1.04 in (2024) |
| March 31 | 88.0°F (2021) | 48.0°F (2007) | 1.06 in (2024) |