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 = 'barstow' and st_surl='california' and iso_cc = 'US' and prim_loc in (1,2) Barstow California Climate Data - Updated February 2026

Barstow California Climate Data

Monthly Average Climate Data for Barstow California

Switch Data to Celsius/Metric Units
MonthAvg. LowAvg. HighAvg. Precip
January34.4 °F60.0 °F0.68 in.
February37.5 °F64.0 °F0.81 in.
March42.1 °F70.3 °F0.52 in.
April48.1 °F76.7 °F0.22 in.
May55.2 °F85.7 °F0.07 in.
June63.1 °F96.2 °F0.02 in.
July69.5 °F101.5 °F0.32 in.
August69.0 °F100.9 °F0.13 in.
September61.4 °F93.8 °F0.14 in.
October50.9 °F81.9 °F0.27 in.
November39.7 °F68.3 °F0.3 in.
December33.0 °F58.6 °F0.76 in.
Annual50.3 °F79.8 °F4.24 in.

Climate Data for Barstow California

Average First Frost DateNov. 21 - Nov. 30
Average Last Frost DateFeb. 21 - Feb. 29
Average Days With Frost10-20 Days
Plant Hardiness ZoneZone 9a : 20°F to 25°F
Plant Hardiness Zone - 2012Zone 9a : 20°F to 25°F
Current Drought ConditionsNormal
Köppen Climate ClassificationCsa - Hot-Summer Mediterranean Climate
2026 plantmaps.com