NOAA GHCND · LIVE

Weather on September 4

Seattle, WA

55 Years of Data

Avg High
73°F
Avg Low
56°F
Warmest
2003
74°F avg
Coldest
1992
58°F avg

About This Date

September 4th in Seattle, WA typically brings pleasant fall weather, with average highs around 73°F and lows near 56°F. Over 54 years of records, the warmest September 4th was in 2003 (74°F average), while the coldest was 1992 (58°F) — a 16°F range across recorded history. Rain or other precipitation has occurred on about 22% of September 4th dates historically, with the wettest September 4th recording 1.98" of rain. The last decade has been 4.2°F warmer on this date compared to 20-30 years ago.

The last decade has been 4.2°F warmer on this date compared to 20-30 years ago.

Planning for September 4th in Seattle, WA? Great weather for outdoor activities.

Warming Trend
0.4°F per decade on this date
YearHighLowAvgPrecipSnow
202576°60°68°
202479°58°68°
202366°54°60°
202277°57°67°
202179°53°66°
202084°59°72°
201975°60°68°
201874°53°63°
201786°61°73°
201668°53°61°
201566°54°60°
201474°53°63°
201372°63°67°
201274°52°63°
201183°51°67°
201067°54°60°0.05"
200977°58°67°
200872°56°64°
200768°59°64°1.83"
200679°57°68°
200567°56°61°0.41"
200468°53°61°
2003warmest86°63°74°
200271°47°59°
200166°56°61°
200070°50°60°
199973°52°62°
199777°56°66°
199664°51°58°0.2"
199573°59°66°0.3"
199474°55°64°
199371°57°64°
1992coldest65°52°58°1.98"
199181°56°68°
199076°56°66°
198973°52°62°
198874°56°65°
198772°53°62°
198680°57°69°
198565°55°60°
198469°56°62°0.08"
198369°59°64°
198271°60°66°
198172°57°64°0.1"
198079°53°66°
197968°56°62°0.18"
197863°55°59°1.4"
197773°59°66°1.12"
197672°56°64°
197573°51°62°
197467°61°64°0.03"
197378°52°65°
197275°55°65°
197178°55°67°
54 years of data from SEATTLE URBAN SITE

Seattle, WA Temperature Range by Month

Average monthly highs and lows. The shaded band shows the typical daily temperature range.

30°40°50°60°70°80°90°JFMAMJJASOND
Avg high Avg low

Seattle, WA Monthly Precipitation

Average rainfall and snowfall per month, in inches.

0"4"8"JFMAMJJASOND2.2"0"
Rain (in) Snow (in)

Seattle, WA Daily Temperature Calendar

Average daily high temperature for every day of the year. Each cell is the climatological mean for that calendar day across 55 years of NOAA data.

151015202531JanFebMarAprMayJunJulAugSepOctNovDec
Cooler
Hotter
20°40°60°80°100°

Best Time to Visit Seattle, WA

Seattle, WA has no months that meet our "pleasant" threshold — every season has tradeoffs.

Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Pleasant (65-82°F, ≤2.5" rain) Mild Less ideal

Browse Weather History

Weather data provided by NOAA Climate Data Online. Not for critical planning.

📬 Free weekly newsletter

This week in weather history.

Five notable weather anniversaries from the week ahead — deadliest tornadoes, record temps, historic storms — every Sunday. No spam, unsubscribe anytime.

4,200+ readers · Sunday delivery