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 = 'big-sandy' and st_surl='montana' and iso_cc = 'US' and prim_loc in (1,2) Big Sandy Montana Climate Data - Updated February 2026

Big Sandy Montana Climate Data

Monthly Average Climate Data for Big Sandy Montana

Switch Data to Celsius/Metric Units
MonthAvg. LowAvg. HighAvg. Precip
January7.8 °F30.9 °F0.48 in.
February10.5 °F35.0 °F0.38 in.
March20.0 °F45.2 °F0.49 in.
April30.6 °F58.3 °F1.16 in.
May40.1 °F67.5 °F1.81 in.
June48.5 °F75.7 °F2.94 in.
July53.7 °F86.1 °F1.43 in.
August51.7 °F85.7 °F1.01 in.
September42.5 °F74.6 °F1.04 in.
October30.9 °F59.5 °F0.88 in.
November19.7 °F43.6 °F0.59 in.
December10.6 °F33.4 °F0.44 in.
Annual30.6 °F58 °F12.65 in.

Climate Data for Big Sandy Montana

Average First Frost DateSep.11 - Sep. 20
Average Last Frost DateMay 11 - May 20
Average Days With Frost125-150 Days
Plant Hardiness ZoneZone 4a : -30°F to -25°F
Plant Hardiness Zone - 2012Zone 4a : -30°F to -25°F
Current Drought ConditionsModerate Drought
Köppen Climate ClassificationBSk - Cold Semi-Arid Climate
2026 plantmaps.com