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 = 'pasco' and st_surl='washington' and iso_cc = 'US' and prim_loc in (1,2) Pasco Washington Climate Data - Updated February 2026

Pasco Washington Climate Data

Monthly Average Climate Data for Pasco Washington

Switch Data to Celsius/Metric Units
MonthAvg. LowAvg. HighAvg. Precip
January28.6 °F41.5 °F1.16 in.
February29.6 °F47.9 °F0.81 in.
March34.5 °F57.7 °F0.7 in.
April40.1 °F65.8 °F0.67 in.
May47.5 °F74.9 °F0.75 in.
June53.7 °F81.6 °F0.63 in.
July59.3 °F90.9 °F0.19 in.
August58.4 °F89.8 °F0.19 in.
September50.5 °F80.3 °F0.27 in.
October41.0 °F65.6 °F0.71 in.
November33.5 °F50.7 °F0.92 in.
December28.5 °F41.0 °F1.16 in.
Annual42.1 °F65.6 °F8.16 in.

Climate Data for Pasco Washington

Average First Frost DateOct. 21 - Oct. 31
Average Last Frost DateApr. 1 - Apr. 10
Average Days With Frost50-75 Days
Plant Hardiness ZoneZone 7b : 5°F to 10°F
Plant Hardiness Zone - 2012Zone 7a : 0°F to 5°F
Current Drought ConditionsAbnormally Dry
Köppen Climate ClassificationBWk - Cold Desert Climate
2026 plantmaps.com