March weather in Friday Harbor, WA
The average temperature in Friday Harbor in March is 45.5°F (38.4°F–52.6°F). Average precipitation: 1.35 inches.
March is a spring month in Friday Harbor, and is cooler than the annual average of 50.9°F. Daily temperatures swing about 14.2°F between overnight low and afternoon high. Expect about 14 days with precipitation. Daylight averages about 11h 38m. For travel, March is cool.
Avg High
52.6°F
Avg Low
38.4°F
Precipitation
1.35 in
Daylight
11h 38m
March records in Friday Harbor
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| March 1 | 64.9°F (2025) | 26.2°F (2007) | 0.31 in (2016) |
| March 2 | 57.9°F (2010) | 29.1°F (2019) | 0.18 in (1999) |
| March 3 | 57.9°F (2005) | 28.9°F (2002) | 0.42 in (2004) |
| March 4 | 55.9°F (2005) | 25.2°F (2019) | 0.59 in (2026) |
| March 5 | 60.1°F (2016) | 27.0°F (1999) | 0.35 in (2014) |
| March 6 | 62.1°F (2007) | 23.2°F (2009) | 0.37 in (2026) |
| March 7 | 59.0°F (2005) | 24.1°F (2002) | 0.47 in (2004) |
| March 8 | 61.0°F (2004) | 24.1°F (2002) | 0.18 in (2014) |
| March 9 | 63.0°F (2012) | 26.2°F (2022) | 0.45 in (2016) |
| March 10 | 66.9°F (2012) | 19.2°F (2009) | 0.13 in (2008) |
| March 11 | 66.9°F (2012) | 23.2°F (2009) | 0.75 in (2002) |
| March 12 | 66.0°F (2018) | 25.2°F (2009) | 0.37 in (2010) |
| March 13 | 66.9°F (2012) | 28.2°F (2009) | 0.42 in (2026) |
| March 14 | 59.0°F (2017) | 30.2°F (2020) | 0.30 in (2009) |
| March 15 | 59.0°F (2003) | 28.9°F (1999) | 0.41 in (2025) |
| March 16 | 82.9°F (2024) | 28.2°F (2021) | 0.31 in (2026) |
| March 17 | 75.9°F (2024) | 25.0°F (2002) | 0.65 in (2022) |
| March 18 | 64.0°F (2019) | 30.0°F (2002) | 0.50 in (2011) |
| March 19 | 71.1°F (2019) | 28.2°F (2012) | 0.45 in (2002) |
| March 20 | 68.0°F (2019) | 27.0°F (2002) | 0.28 in (2026) |
| March 21 | 59.0°F (2004) | 28.2°F (2009) | 0.27 in (2022) |
| March 22 | 63.0°F (2019) | 29.1°F (2012) | 0.16 in (2022) |
| March 23 | 59.0°F (2006) | 31.1°F (2013) | 0.56 in (2025) |
| March 24 | 60.1°F (2011) | 28.9°F (2003) | 0.45 in (2025) |
| March 25 | 64.9°F (2025) | 30.2°F (2018) | 0.40 in (2010) |
| March 26 | 64.0°F (2015) | 30.2°F (2009) | 0.49 in (2005) |
| March 27 | 66.9°F (2007) | 33.1°F (1998) | 0.44 in (2016) |
| March 28 | 63.0°F (2019) | 33.1°F (2003) | 0.21 in (2008) |
| March 29 | 71.1°F (2004) | 28.9°F (2000) | 0.38 in (2010) |
| March 30 | 63.0°F (2015) | 30.0°F (1999) | 0.42 in (2011) |
| March 31 | 64.9°F (2016) | 27.1°F (2008) | 0.20 in (2010) |