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 = 'grandfield' and st_surl='oklahoma' and iso_cc = 'US' and prim_loc in (1,2) Grandfield Oklahoma Climate Data - Updated February 2026

Grandfield Oklahoma Climate Data

Monthly Average Climate Data for Grandfield Oklahoma

Switch Data to Celsius/Metric Units
MonthAvg. LowAvg. HighAvg. Precip
January28.6 °F53.5 °F1.19 in.
February31.7 °F57.6 °F1.49 in.
March40.2 °F66.4 °F2.26 in.
April48.0 °F74.9 °F2.8 in.
May59.0 °F83.8 °F4.13 in.
June68.3 °F92.5 °F3.83 in.
July72.0 °F97.3 °F2.22 in.
August71.2 °F96.9 °F2.33 in.
September63.3 °F88.6 °F2.88 in.
October51.2 °F77.3 °F3.12 in.
November39.5 °F64.5 °F1.89 in.
December30.4 °F54.5 °F1.53 in.
Annual50.3 °F75.7 °F29.67 in.

Climate Data for Grandfield Oklahoma

Average First Frost DateNov. 11 - Nov. 20
Average Last Frost DateMar. 21 - Mar. 31
Average Days With Frost40-50 Days
Plant Hardiness ZoneZone 8a : 10°F to 15°F
Plant Hardiness Zone - 2012Zone 7b : 5°F to 10°F
Current Drought ConditionsSevere Drought
Köppen Climate ClassificationCfa - Humid Subtropical Climate
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