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 = 'round-valley' and st_surl='california' and iso_cc = 'US' and prim_loc in (1,2) Round Valley California Climate Data - Updated February 2026

Round Valley California Climate Data

Monthly Average Climate Data for Round Valley California

Switch Data to Celsius/Metric Units
MonthAvg. LowAvg. HighAvg. Precip
January25.6 °F53.0 °F0.95 in.
February27.9 °F55.2 °F1.06 in.
March32.3 °F62.0 °F0.59 in.
April37.0 °F68.6 °F0.27 in.
May44.4 °F77.3 °F0.3 in.
June52.7 °F88.1 °F0.12 in.
July58.9 °F94.5 °F0.13 in.
August57.2 °F93.0 °F0.11 in.
September50.2 °F85.7 °F0.09 in.
October40.4 °F74.4 °F0.28 in.
November30.7 °F61.5 °F0.46 in.
December25.1 °F52.2 °F0.79 in.
Annual40.2 °F72.1 °F5.15 in.

Climate Data for Round Valley California

Average First Frost DateOct. 11 - Oct. 20
Average Last Frost DateMay 1 - May 10
Average Days With Frost100-125 Days
Plant Hardiness ZoneZone 8a : 10°F to 15°F
Plant Hardiness Zone - 2012Zone 7b : 5°F to 10°F
Current Drought ConditionsNormal
Köppen Climate ClassificationCsa - Hot-Summer Mediterranean Climate
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