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 = 'island-park' and st_surl='idaho' and iso_cc = 'US' and prim_loc in (1,2) Island Park Idaho Climate Data - Updated February 2026

Island Park Idaho Climate Data

Monthly Average Climate Data for Island Park Idaho

Switch Data to Celsius/Metric Units
MonthAvg. LowAvg. HighAvg. Precip
January5.4 °F27.8 °F3.59 in.
February6.7 °F31.9 °F2.64 in.
March13.9 °F40.9 °F2.32 in.
April22.6 °F49.2 °F2.32 in.
May31.4 °F59.4 °F2.86 in.
June37.6 °F68.5 °F2.31 in.
July42.3 °F79.4 °F1.03 in.
August40.2 °F79.3 °F1.09 in.
September33.0 °F69.1 °F1.35 in.
October24.8 °F53.1 °F1.93 in.
November14.6 °F37.3 °F2.45 in.
December6.2 °F27.2 °F3.76 in.
Annual23.2 °F51.9 °F27.65 in.

Climate Data for Island Park Idaho

Average First Frost DateAug. 1 - Aug. 10
Average Last Frost DateJun. 11 - Jun. 20
Average Days With Frost
Plant Hardiness ZoneZone 4a : -30°F to -25°F
Plant Hardiness Zone - 2012Zone 3b : -35°F to -30°F
Current Drought ConditionsModerate Drought
Köppen Climate ClassificationDfc - Subarctic With Cool Summers And Year Around Rainfall
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