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 = 'boulder' and st_surl='wyoming' and iso_cc = 'US' and prim_loc in (1,2) Boulder Wyoming Climate Data - Updated February 2026

Boulder Wyoming Climate Data

Monthly Average Climate Data for Boulder Wyoming

Switch Data to Celsius/Metric Units
MonthAvg. LowAvg. HighAvg. Precip
January-2.6 °F26.9 °F0.53 in.
February-0.3 °F29.6 °F0.56 in.
March12.2 °F40.0 °F0.56 in.
April21.6 °F50.8 °F0.89 in.
May29.6 °F60.9 °F1.47 in.
June36.7 °F71.1 °F1.25 in.
July41.9 °F80.0 °F0.73 in.
August39.7 °F78.9 °F0.8 in.
September32.0 °F69.7 °F1.04 in.
October22.4 °F55.9 °F0.9 in.
November10.7 °F39.8 °F0.49 in.
December-0.5 °F28.1 °F0.56 in.
Annual20.3 °F52.6 °F9.78 in.

Climate Data for Boulder Wyoming

Average First Frost DateAug. 1 - Aug. 10
Average Last Frost DateJun. 21 - Jun. 30
Average Days With Frost
Plant Hardiness ZoneZone 3b : -35°F to -30°F
Plant Hardiness Zone - 2012Zone 3b : -35°F to -30°F
Current Drought ConditionsAbnormally Dry
Köppen Climate ClassificationDfc - Subarctic With Cool Summers And Year Around Rainfall
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