select pnm,lnm,st_cd,st_nm,cnty_id,dm,dm_date,dm_hist,avg_tmax_data,avg_tmin_data,avg_prcp_data,rec_hi_data,rec_lo_data,avg_sndp_data,x,y,ff,lf,fd,hz,er,hz_source,kg,hzd,clim_stn_nm,hz12,hz90, feels_like_min,feels_like_max,days_of_prcp,snow,cloud_cover,humidity,wind_speed from worldtg8_pm.pm_climate_points_namer where surl = 'asotin' and st_surl='washington' and iso_cc = 'US' and prim_loc in (1,2) Asotin Washington Climate Data - Updated February 2026

Asotin Washington Climate Data

Monthly Average Climate Data for Asotin Washington

Switch Data to Celsius/Metric Units
MonthAvg. LowAvg. HighAvg. Precip
January31.1 °F43.1 °F1.17 in.
February31.9 °F48.3 °F1.25 in.
March35.9 °F56.4 °F1.34 in.
April41.2 °F64.2 °F1.16 in.
May47.9 °F73.3 °F1.43 in.
June54.0 °F80.1 °F1.13 in.
July59.9 °F92.1 °F0.52 in.
August59.6 °F91.8 °F0.46 in.
September52.5 °F81.6 °F0.53 in.
October42.9 °F65.4 °F1.06 in.
November35.6 °F50.5 °F1.38 in.
December30.4 °F41.8 °F1.19 in.
Annual43.6 °F65.7 °F12.62 in.

Climate Data for Asotin Washington

Average First Frost DateOct. 21 - Oct. 31
Average Last Frost DateMar. 21 - Mar. 31
Average Days With Frost50-75 Days
Plant Hardiness ZoneZone 7b : 5°F to 10°F
Plant Hardiness Zone - 2012Zone 7b : 5°F to 10°F
Current Drought ConditionsSevere Drought
Köppen Climate ClassificationBSk - Cold Semi-Arid Climate
2026 plantmaps.com