Seattle Weather in March
Average highs run from 52°F on March 1 to 56°F on March 31, and lows from 38°F to 41°F. Normal precipitation for the month is 3.86 in over about 18 wet days.
March day by day
The normal high and low for each date, and the record, in °F.
- Normal low
- Normal high
- Record high
- Record low
March at a glance
- Average high
- 54°F
- Average low
- 39°F
- Precipitation
- 3.86 in
- Record high
- 79°FMar 19, 2019
- Record low
- 16°FMar 4, 1955
- Chance of a freeze
- 64%
- Daylight
- 11 h 05 min to 12 h 48 min
- Cloud cover
- 74%
- Humidity
- 85%
- Dew point
- 40°F
- Wind
- 5.4 mph
Every day of the month
A wet day has at least 0.01 inch of precipitation; snow means at least 0.1 inch of snowfall.
| Date | Normal high | Normal low | Record high | Record low | Chance wet | Chance of snow |
|---|---|---|---|---|---|---|
| Mar 1 | 52°F | 38°F | 63°F 2025 | 27°F 2002 | 57% | 1% |
| Mar 2 | 52°F | 38°F | 61°F 1965 | 26°F 1951 | 57% | 1% |
| Mar 3 | 52°F | 38°F | 69°F 1965 | 25°F 1955 | 57% | 1% |
| Mar 4 | 52°F | 38°F | 67°F 1965 | 16°F 1955 | 57% | 1% |
| Mar 5 | 52°F | 38°F | 64°F 2016 | 17°F 1955 | 57% | 1% |
| Mar 6 | 52°F | 38°F | 68°F 2007 | 27°F 2009 | 57% | 1% |
| Mar 7 | 53°F | 38°F | 67°F 2001 | 27°F 2012 | 57% | 1% |
| Mar 8 | 53°F | 38°F | 69°F 2005 | 29°F 2021 | 57% | 1% |
| Mar 9 | 53°F | 38°F | 62°F 1965 | 27°F 2019 | 57% | 1% |
| Mar 10 | 53°F | 39°F | 66°F 1965 | 25°F 1956 | 58% | 1% |
| Mar 11 | 53°F | 39°F | 67°F 1965 | 25°F 1956 | 58% | 1% |
| Mar 12 | 53°F | 39°F | 73°F 2018 | 26°F 1954 | 58% | 1% |
| Mar 13 | 54°F | 39°F | 67°F 2015 | 29°F 2009 | 57% | 1% |
| Mar 14 | 54°F | 39°F | 63°F 1961 | 31°F 1953 | 57% | 0% |
| Mar 15 | 54°F | 39°F | 63°F 2010 | 30°F 1955 | 57% | 0% |
| Mar 16 | 54°F | 39°F | 74°F 2024 | 30°F 1956 | 57% | 0% |
| Mar 17 | 54°F | 39°F | 71°F 2024 | 28°F 1955 | 57% | 0% |
| Mar 18 | 54°F | 40°F | 75°F 2019 | 30°F 1965 | 57% | 0% |
| Mar 19 | 54°F | 40°F | 79°F 2019 | 26°F 1965 | 57% | 0% |
| Mar 20 | 55°F | 40°F | 68°F 2010 | 27°F 1955 | 57% | 0% |
| Mar 21 | 55°F | 40°F | 68°F 2004 | 30°F 1954 | 57% | 0% |
| Mar 22 | 55°F | 40°F | 66°F 2019 | 30°F 1952 | 57% | 0% |
| Mar 23 | 55°F | 40°F | 66°F 1953 | 31°F 1954 | 57% | 0% |
| Mar 24 | 55°F | 40°F | 70°F 2010 | 29°F 1965 | 57% | 0% |
| Mar 25 | 55°F | 40°F | 72°F 2025 | 32°F 2008 | 57% | 0% |
| Mar 26 | 55°F | 40°F | 72°F 2015 | 31°F 2009 | 57% | 0% |
| Mar 27 | 56°F | 41°F | 70°F 1948 | 32°F 2023 | 56% | 0% |
| Mar 28 | 56°F | 41°F | 64°F 1964 | 29°F 1954 | 56% | 0% |
| Mar 29 | 56°F | 41°F | 79°F 2004 | 28°F 1954 | 56% | 0% |
| Mar 30 | 56°F | 41°F | 68°F 2016 | 29°F 1954 | 56% | 0% |
| Mar 31 | 56°F | 41°F | 73°F 2016 | 30°F 1949 | 56% | 0% |
Chance of rain
- Chance of a wet day
- Chance of snowfall
Sunrise and sunset
Times for 2026, local time (PDT).
- March 1
- sunrise 6:49 AM, sunset 5:54 PM
- March 31
- sunrise 6:50 AM, sunset 7:38 PM
Other months
Sources
Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USW00094290 (Seattle Sand Pt Wsfo), public domain. Records: NOAA GHCN-Daily, station USW00024234, every year on file, quality-flagged values removed. Cloud, humidity, wind and sunshine: NASA POWER (MERRA-2, CERES and GEWEX SRB), 1991-2020. The data was obtained from the National Aeronautics and Space Administration (NASA) Langley Research Center's Prediction Of Worldwide Energy Resources (POWER) project funded through the NASA Earth Science Division: POWER Daily API v2, accessed 2026-09-24. Sun and moon: computed with the NOAA solar equations and Meeus.