Snohomish County climate

Snohomish County Weather in July

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

Average highs run from 74°F on July 1 to 80°F on July 31, and lows from 50°F to 53°F. Normal precipitation for the month is 1.48 in over about 7 wet days.

July 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.20406080100151015202530
  • Normal low
  • Normal high
  • Record high
  • Record low

July at a glance

Average high
78°F
Average low
52°F
Precipitation
1.48 in
Record high
96°FJul 19, 2015
Record low
40°FJul 18, 2017
Chance of a freeze
0%
Days of 90°F or more
2.3
Daylight
15 h 59 min to 15 h 02 min
Cloud cover
47%
Humidity
78%
Dew point
49°F
Wind
3.4 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.

DateNormal highNormal lowRecord highRecord lowChance wetChance of snow
Jul 174°F50°F94°F 201443°F 201734%0%
Jul 274°F50°F94°F 201542°F 201833%0%
Jul 375°F50°F92°F 201542°F 201732%0%
Jul 475°F51°F90°F 201542°F 201232%0%
Jul 575°F51°F90°F 201545°F 201231%0%
Jul 676°F51°F84°F 201443°F 197730%0%
Jul 776°F51°F81°F 201344°F 201729%0%
Jul 876°F51°F85°F 201442°F 201128%0%
Jul 976°F51°F85°F 201544°F 201127%0%
Jul 1077°F51°F82°F 201444°F 201726%0%
Jul 1177°F51°F88°F 201443°F 201726%0%
Jul 1277°F51°F90°F 201443°F 201325%0%
Jul 1377°F52°F88°F 201441°F 201724%0%
Jul 1478°F52°F86°F 201843°F 201724%0%
Jul 1578°F52°F92°F 201847°F 201323%0%
Jul 1678°F52°F91°F 201841°F 201723%0%
Jul 1778°F52°F90°F 201842°F 201522%0%
Jul 1878°F52°F91°F 201540°F 201722%0%
Jul 1979°F52°F96°F 201542°F 197722%0%
Jul 2079°F52°F87°F 202044°F 201821%0%
Jul 2179°F52°F91°F 201944°F 201621%0%
Jul 2279°F52°F93°F 197845°F 197721%0%
Jul 2379°F52°F92°F 197841°F 201420%0%
Jul 2479°F52°F92°F 197842°F 201720%0%
Jul 2579°F52°F90°F 201842°F 201520%0%
Jul 2679°F52°F91°F 201842°F 201719%0%
Jul 2780°F52°F93°F 202040°F 201119%0%
Jul 2880°F52°F87°F 201641°F 201719%0%
Jul 2980°F52°F94°F 201840°F 201719%0%
Jul 3080°F53°F94°F 201543°F 201719%0%
Jul 3180°F53°F93°F 201545°F 201118%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.0102030401102030
  • Chance of a wet day
  • Chance of snowfall

Sunrise and sunset

Times for 2026, local time (PDT).

July 1
sunrise 5:11 AM, sunset 9:10 PM
July 31
sunrise 5:42 AM, sunset 8:44 PM

Every day of July: 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.