Snohomish County climate

Snohomish County Weather in March

NOAA 1991-2020 normals for Startup 1 E, 20 km from Snohomish County

Average highs run from 53°F on March 1 to 57°F on March 31, and lows from 34°F to 38°F. Normal precipitation for the month is 6.77 in over about 20 wet days.

March day by day

The normal high and low for each date, and the record, in °F.

Normal daily high and low temperature at Snohomish County, in °F, with the record for each date.020406080100151015202530
  • Normal low
  • Normal high
  • Record high
  • Record low

March at a glance

Average high
55°F
Average low
36°F
Precipitation
6.77 in
Snowfall
0.2 in
Record high
82°FMar 19, 2019
Record low
15°FMar 4, 2019
Chance of a freeze
99%
Daylight
11 h 05 min to 12 h 49 min
Cloud cover
73%
Humidity
93%
Dew point
28°F
Wind
4.0 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.

DateNormal highNormal lowRecord highRecord lowChance wetChance of snow
Mar 153°F34°F58°F 201319°F 201962%1%
Mar 253°F35°F58°F 201321°F 201962%1%
Mar 353°F35°F58°F 201616°F 201962%1%
Mar 453°F35°F59°F 201615°F 201962%1%
Mar 553°F35°F67°F 201616°F 201962%1%
Mar 653°F35°F60°F 201522°F 201962%1%
Mar 754°F35°F62°F 201525°F 201863%1%
Mar 854°F35°F64°F 201520°F 201963%1%
Mar 954°F35°F63°F 201520°F 201963%1%
Mar 1054°F35°F61°F 201820°F 201963%1%
Mar 1154°F36°F67°F 201827°F 201963%1%
Mar 1254°F36°F74°F 201827°F 201963%1%
Mar 1354°F36°F69°F 201529°F 201464%1%
Mar 1455°F36°F60°F 201727°F 192364%1%
Mar 1555°F36°F64°F 201325°F 202064%1%
Mar 1655°F36°F63°F 201525°F 201664%1%
Mar 1755°F36°F66°F 201925°F 201664%1%
Mar 1855°F36°F75°F 201923°F 202064%1%
Mar 1955°F37°F82°F 201923°F 202064%1%
Mar 2055°F37°F75°F 201926°F 201764%1%
Mar 2155°F37°F65°F 201927°F 201464%1%
Mar 2256°F37°F69°F 201927°F 201364%1%
Mar 2356°F37°F65°F 201128°F 201264%0%
Mar 2456°F37°F72°F 201425°F 201864%0%
Mar 2556°F37°F65°F 201927°F 201864%0%
Mar 2656°F37°F74°F 201528°F 201964%0%
Mar 2756°F37°F73°F 201528°F 201964%0%
Mar 2856°F38°F69°F 201526°F 201664%0%
Mar 2956°F38°F75°F 192326°F 201664%0%
Mar 3057°F38°F70°F 192329°F 201764%0%
Mar 3157°F38°F73°F 201630°F 201464%0%

Chance of rain

The chance of at least 0.01 inch of precipitation on each date at Snohomish County, in percent, and of at least 0.1 inch of snowfall.0204060801102030
  • Chance of a wet day
  • Chance of snowfall

Sunrise and sunset

Times for 2026, local time (PDT).

March 1
sunrise 6:47 AM, sunset 5:52 PM
March 31
sunrise 6:47 AM, sunset 7:36 PM

Every day of March: sun and moon

Other months

Sources

Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USC00458034 (Startup 1 E), public domain. Records: NOAA GHCN-Daily, station USC00450257, 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.