Sammamish climate

Sammamish Weather in April

NOAA 1991-2020 normals for Seattle Sand Pt Wsfo, 14.1 km from Sammamish

Average highs run from 56°F on April 1 to 62°F on April 30, and lows from 41°F to 45°F. Normal precipitation for the month is 2.98 in over about 16 wet days.

April day by day

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

Normal daily high and low temperature at Sammamish, in °F, with the record for each date.20406080100151015202530
  • Normal low
  • Normal high
  • Record high
  • Record low

April at a glance

Average high
59°F
Average low
43°F
Precipitation
2.98 in
Record high
87°FApr 18, 2016
Record low
31°FApr 2, 2008
Chance of a freeze
7%
Daylight
12 h 52 min to 14 h 28 min
Cloud cover
70%
Humidity
83%
Dew point
39°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
Apr 156°F41°F70°F 201632°F 200855%0%
Apr 256°F41°F70°F 202431°F 200855%0%
Apr 357°F41°F74°F 200431°F 200755%0%
Apr 457°F41°F65°F 200233°F 200955%0%
Apr 557°F41°F72°F 202534°F 202155%0%
Apr 657°F42°F78°F 200734°F 199954%0%
Apr 757°F42°F77°F 201633°F 201154%0%
Apr 857°F42°F75°F 201632°F 201154%0%
Apr 958°F42°F68°F 200434°F 200853%0%
Apr 1058°F42°F75°F 200433°F 201053%0%
Apr 1158°F42°F82°F 200431°F 202153%0%
Apr 1258°F42°F80°F 200833°F 202053%0%
Apr 1358°F42°F68°F 201433°F 202052%0%
Apr 1458°F43°F70°F 201434°F 199952%0%
Apr 1559°F43°F76°F 199935°F 200951%0%
Apr 1659°F43°F83°F 199936°F 201351%0%
Apr 1759°F43°F78°F 201635°F 202451%0%
Apr 1859°F43°F87°F 201636°F 202450%0%
Apr 1959°F43°F81°F 201635°F 200850%0%
Apr 2060°F43°F81°F 201633°F 200849%0%
Apr 2160°F43°F74°F 201636°F 200849%0%
Apr 2260°F44°F79°F 200535°F 201348%0%
Apr 2360°F44°F72°F 202435°F 201148%0%
Apr 2460°F44°F80°F 201835°F 200047%0%
Apr 2561°F44°F75°F 201839°F 200247%0%
Apr 2661°F44°F82°F 201834°F 200846%0%
Apr 2761°F45°F76°F 201536°F 201146%0%
Apr 2861°F45°F79°F 202336°F 201945%0%
Apr 2962°F45°F79°F 202338°F 200645%0%
Apr 3062°F45°F82°F 201436°F 200644%0%

Chance of rain

The chance of at least 0.01 inch of precipitation on each date at Sammamish, in percent, and of at least 0.1 inch of snowfall.02040601102030
  • Chance of a wet day
  • Chance of snowfall

Sunrise and sunset

Times for 2026, local time (PDT).

April 1
sunrise 6:47 AM, sunset 7:39 PM
April 30
sunrise 5:52 AM, sunset 8:20 PM

Every day of April: sun and moon

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 USW00094248, 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.