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 = 'jamestown' and st_surl='rhode-island' and iso_cc = 'US' and prim_loc in (1,2) Jamestown Rhode Island Climate Data - Updated February 2026

Jamestown Rhode Island Climate Data

Monthly Average Climate Data for Jamestown Rhode Island

Switch Data to Celsius/Metric Units

Month	Avg. Low	Avg. High	Avg. Precip
January	23.3 °F	38.5 °F	3.95 in.
February	24.6 °F	40.1 °F	3.53 in.
March	30.8 °F	45.7 °F	5.13 in.
April	39.9 °F	54.9 °F	4.53 in.
May	49.4 °F	64.3 °F	3.49 in.
June	58.8 °F	73.1 °F	3.57 in.
July	65.0 °F	79.4 °F	3.05 in.
August	64.1 °F	79.0 °F	3.46 in.
September	58.0 °F	73.0 °F	3.72 in.
October	47.4 °F	62.8 °F	4.5 in.
November	38.1 °F	53.0 °F	4.04 in.
December	29.5 °F	44.2 °F	4.76 in.
Annual	44.1 °F	59 °F	47.73 in.

Climate Data for Jamestown Rhode Island

Average First Frost Date	Oct. 11 - Oct. 20
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	Dfa - Humid Continental Hot Summers With Year Around Precipitation

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