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 = 'monomoscoy-island' and st_surl='massachusetts' and iso_cc = 'US' and prim_loc in (1,2) Monomoscoy Island Massachusetts Climate Data - Updated February 2026

Monomoscoy Island Massachusetts Climate Data

Monthly Average Climate Data for Monomoscoy Island Massachusetts

Switch Data to Celsius/Metric Units

Month	Avg. Low	Avg. High	Avg. Precip
January	24.7 °F	39.2 °F	4.26 in.
February	25.5 °F	40.0 °F	3.71 in.
March	30.9 °F	45.1 °F	5.11 in.
April	39.6 °F	53.5 °F	4.36 in.
May	48.8 °F	63.0 °F	3.51 in.
June	58.2 °F	72.1 °F	3.68 in.
July	65.0 °F	78.5 °F	2.94 in.
August	64.5 °F	78.1 °F	3.64 in.
September	58.2 °F	72.6 °F	4.03 in.
October	48.1 °F	62.6 °F	4.74 in.
November	38.9 °F	53.3 °F	4.15 in.
December	30.8 °F	44.9 °F	5.18 in.
Annual	44.4 °F	58.6 °F	49.31 in.

Climate Data for Monomoscoy Island Massachusetts

Average First Frost Date	Oct. 21 - Oct. 31
Average Last Frost Date	Apr. 21 - Apr. 30
Average Days With Frost	75-100 Days
Plant Hardiness Zone	Zone 7a : 0°F to 5°F
Plant Hardiness Zone - 2012	Zone 7a : 0°F to 5°F
Current Drought Conditions	Moderate Drought
Köppen Climate Classification	Dfb - Humid Continental Mild Summer, Wet All Year

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