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

Newtown Connecticut Climate Data

Monthly Average Climate Data for Newtown Connecticut

Switch Data to Celsius/Metric Units
MonthAvg. LowAvg. HighAvg. Precip
January18.5 °F36.0 °F3.92 in.
February19.9 °F38.8 °F3.14 in.
March27.1 °F46.7 °F4.37 in.
April37.5 °F59.2 °F4.11 in.
May47.6 °F70.2 °F3.96 in.
June56.9 °F78.5 °F4.71 in.
July62.4 °F83.6 °F4.53 in.
August60.8 °F81.6 °F4.62 in.
September53.5 °F74.5 °F4.66 in.
October41.8 °F62.8 °F4.86 in.
November32.2 °F51.4 °F4.18 in.
December24.4 °F40.8 °F4.45 in.
Annual40.2 °F60.3 °F51.51 in.

Climate Data for Newtown Connecticut

Average First Frost DateOct. 11 - Oct. 20
Average Last Frost DateApr. 21 - Apr. 30
Average Days With Frost75-100 Days
Plant Hardiness ZoneZone 6b : -5°F to 0°F
Plant Hardiness Zone - 2012Zone 6b : -5°F to 0°F
Current Drought ConditionsAbnormally Dry
Köppen Climate ClassificationDfa - Humid Continental Hot Summers With Year Around Precipitation
2026 plantmaps.com