Weather on May 20

Spokane, WA

55 Years of Data

Avg High
67°F
Avg Low
44°F
Warmest
2023
75°F avg
Coldest
1971
42°F avg

About This Date

May 20th in Spokane, WA typically brings mild spring weather, with average highs around 67°F and lows near 44°F. Over 55 years of records, the warmest May 20th was in 2023 (75°F average), while the coldest was 1971 (42°F) — a 33°F range across recorded history. Rain or other precipitation has occurred on about 36% of May 20th dates historically, with the wettest May 20th recording 3.56" of rain. The last decade has been 2.5°F warmer on this date compared to 20-30 years ago.

The last decade has been 2.5°F warmer on this date compared to 20-30 years ago.

Planning for May 20th in Spokane, WA? Great weather for outdoor activities. Consider bringing rain gear or an umbrella.

Warming Trend
0.5°F per decade on this date
YearHighLowAvgPrecipSnow
202565°46°55°
202465°38°51°0.13"
2023warmest91°59°75°
202260°38°49°0.15"
202157°46°52°0.03"
202058°51°54°3.56"
201965°44°54°
201878°46°62°
201769°50°60°0.13"
201668°40°54°0.03"
201580°50°65°
201477°42°60°
201374°44°59°
201271°44°58°
201176°44°60°
201057°38°47°
200962°40°51°
200864°44°54°1.07"
200754°43°48°0.03"
200671°54°62°1.45"
200556°47°51°1.27"
200471°46°59°0.25"
200364°37°51°
200259°48°54°0.1"
200165°41°53°
200073°48°61°
199964°37°51°
199876°46°61°0.25"
199765°39°52°
199659°37°48°
199573°42°58°
199455°46°51°1.3"
199372°53°62°0.05"
199265°42°53°
199171°37°54°
199059°46°53°0.41"
198965°34°49°
198873°39°56°
198759°32°46°
198662°48°55°0.25"
198573°48°61°
198458°40°49°
198372°44°58°
198272°45°58°
198165°50°57°0.94"
198077°57°67°
197976°45°60°
197881°55°68°
197767°47°57°
197674°37°55°0.56"
197560°34°47°
197463°38°50°
197355°37°46°
197272°54°63°
1971coldest49°36°42°0.1"
55 years of data from SPOKANE FELTS FLD

Browse Weather History

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

May 20th Weather in Spokane, WA - 55 Years of History