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 = 'new-gretna' and st_surl='new-jersey' and iso_cc = 'US' and prim_loc in (1,2) New Gretna New Jersey Climate Data - Updated February 2026

New Gretna New Jersey Climate Data

Monthly Average Climate Data for New Gretna New Jersey

Switch Data to Celsius/Metric Units
MonthAvg. LowAvg. HighAvg. Precip
January24.4 °F42.5 °F3.75 in.
February25.4 °F44.4 °F2.97 in.
March32.4 °F50.6 °F4.73 in.
April42.1 °F62.0 °F3.54 in.
May51.7 °F71.4 °F3.61 in.
June61.3 °F80.7 °F3.96 in.
July66.7 °F85.2 °F4.96 in.
August65.2 °F83.5 °F4.97 in.
September59.1 °F77.6 °F3.59 in.
October47.4 °F66.9 °F4.25 in.
November37.2 °F56.7 °F3.38 in.
December29.5 °F47.2 °F4.57 in.
Annual45.2 °F64.1 °F48.28 in.

Climate Data for New Gretna New Jersey

Average First Frost DateNov. 1 - Nov. 10
Average Last Frost DateApr. 1 - Apr. 10
Average Days With Frost50-75 Days
Plant Hardiness ZoneZone 7a : 0°F to 5°F
Plant Hardiness Zone - 2012Zone 7a : 0°F to 5°F
Current Drought ConditionsAbnormally Dry
Köppen Climate ClassificationCfa - Humid Subtropical Climate
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