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 = 'bristol' and st_surl='connecticut' and iso_cc = 'US' and prim_loc in (1,2) Bristol Connecticut Climate Data - Updated February 2026

Bristol Connecticut Climate Data

Monthly Average Climate Data for Bristol Connecticut

Switch Data to Celsius/Metric Units

Month	Avg. Low	Avg. High	Avg. Precip
January	18.2 °F	36.2 °F	3.69 in.
February	19.4 °F	39.0 °F	3.37 in.
March	26.8 °F	46.9 °F	4.64 in.
April	37.2 °F	59.7 °F	4.1 in.
May	47.5 °F	70.7 °F	4.05 in.
June	56.8 °F	79.2 °F	4.57 in.
July	62.2 °F	84.4 °F	4.5 in.
August	60.5 °F	82.5 °F	4.43 in.
September	53.2 °F	75.3 °F	4.84 in.
October	41.8 °F	63.2 °F	5.49 in.
November	32.2 °F	51.6 °F	4.06 in.
December	24.4 °F	41.3 °F	4.68 in.
Annual	40 °F	60.8 °F	52.42 in.

Climate Data for Bristol Connecticut

Average First Frost Date	Oct. 11 - Oct. 20
Average Last Frost Date	Apr. 21 - Apr. 30
Average Days With Frost	100-125 Days
Plant Hardiness Zone	Zone 6b : -5°F to 0°F
Plant Hardiness Zone - 2012	Zone 6a : -10°F to -5°F
Current Drought Conditions	Moderate Drought
Köppen Climate Classification	Dfa - Humid Continental Hot Summers With Year Around Precipitation

2026 plantmaps.com