Weather on September 1

Spokane, WA

55 Years of Data

Avg High
79°F
Avg Low
51°F
Warmest
2025
84°F avg
Coldest
1971
49°F avg

About This Date

September 1st in Spokane, WA typically brings pleasant fall weather, with average highs around 79°F and lows near 51°F — a 28°F daily swing. Over 55 years of records, the warmest September 1st was in 2025 (84°F average), while the coldest was 1971 (49°F) — a 35°F range across recorded history. Rain or other precipitation has occurred on about 15% of September 1st dates historically, with the wettest September 1st recording 0.76" of rain. The last decade has been 5.6°F warmer on this date compared to 20-30 years ago.

The last decade has been 5.6°F warmer on this date compared to 20-30 years ago.

Planning for September 1st in Spokane, WA? Great weather for outdoor activities.

Warming Trend
1.7°F per decade on this date
YearHighLowAvgPrecipSnow
2025warmest99°70°84°
202497°61°79°
202376°54°65°0.03"
202293°63°78°
202171°42°57°
202085°53°69°
201986°64°75°
201874°50°62°
201788°58°73°
201673°54°63°
201575°51°63°
201473°46°60°
201392°56°74°
201275°49°62°
201173°44°59°
201072°51°61°
200993°61°77°
200869°40°54°
200779°50°64°
200678°46°62°
200581°52°66°
200479°50°64°
200386°55°71°
200279°56°67°
200179°54°66°
200061°48°54°
199966°41°54°
199896°60°78°
199793°50°72°
199673°41°57°
199588°50°69°
199483°54°68°
199379°50°64°
199279°51°65°
199173°52°62°
199079°45°62°
198975°48°62°
198890°45°67°
198794°62°78°
198671°53°62°
198567°48°57°0.18"
198472°50°61°
198375°64°70°0.13"
198279°50°64°
198175°55°65°0.66"
198065°45°55°0.76"
197983°51°67°
197873°50°62°0.56"
197774°44°59°
197695°59°77°
197564°38°51°0.08"
197470°52°61°
197370°44°57°
197278°53°66°
1971coldest53°45°49°0.13"
55 years of data from SPOKANE

Browse Weather History

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