Frost Dates for Glen Ridge, NJ

Based on data from Essex Fells Service Bldg weather station, 5 miles away

Frost Dates

Last Spring Frost (50%) iA 50% chance that the last spring frost has already passed by this date. Most gardeners use this as their primary planting guide. April 18
First Fall Frost (50%) iA 50% chance that the first fall frost has occurred by this date. Plan to harvest or protect tender plants before this date. October 24
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

30% Probability iOnly a 30% chance of frost remaining by this date. Use these dates for a safer planting window, especially for tender plants sensitive to cold.

Last Spring Frost April 25
First Fall Frost October 17

Hard Freeze (28°F)

Last Spring Hard Freeze April 3
First Fall Hard Freeze November 4
40.81°N, -74.20°W © OpenStreetMap

Growing Season

189 Days April 18 to October 24

USDA Hardiness Zone iHardiness zones indicate which perennial plants can survive winter in your area. For annual vegetables, frost dates and growing season length matter more than hardiness zone.

Zone 6b

Avg. annual minimum: −5 to 0°F (−21 to −18°C)

Learn more

Köppen Climate iThe Köppen climate classification system categorizes climates based on temperature and precipitation patterns.

Dfa Hot-Summer Continental

Hot summers and cold winters with year-round precipitation. Moderate growing season supports warm-season crops like tomatoes, peppers, and corn. Winter protection extends the harvest.

Köppen climate map

Temperature

20° 40° 60° 80°
30°
High: 38°F
Avg: 30°F
Low: 21°F
Jan
32°
High: 41°F
Avg: 32°F
Low: 23°F
Feb
40°
High: 49°F
Avg: 40°F
Low: 30°F
Mar
51°
High: 63°F
Avg: 51°F
Low: 40°F
Apr
61°
High: 72°F
Avg: 61°F
Low: 49°F
May
70°
High: 81°F
Avg: 70°F
Low: 59°F
Jun
75°
High: 86°F
Avg: 75°F
Low: 64°F
Jul
73°
High: 84°F
Avg: 73°F
Low: 63°F
Aug
66°
High: 78°F
Avg: 66°F
Low: 54°F
Sep
54°
High: 65°F
Avg: 54°F
Low: 43°F
Oct
44°
High: 53°F
Avg: 44°F
Low: 34°F
Nov
35°
High: 43°F
Avg: 35°F
Low: 27°F
Dec
32°F
28°F
Avg High Avg Temp Avg Low Light Frost (32°F) Hard Frost (28°F)

Precipitation

0" 2" 4" 5.7"
4.2"
4.24"
Jan
3.8"
3.80"
Feb
4.6"
4.64"
Mar
4.1"
4.14"
Apr
4.2"
4.22"
May
4.6"
4.63"
Jun
4.2"
4.21"
Jul
4.7"
4.74"
Aug
3.3"
3.33"
Sep
3.7"
3.71"
Oct
5.3"
5.32"
Nov
5.7"
5.69"
Dec

Sunrise / Sunset

4a7a10a1p4p7p10pNoonJanFebMarAprMayJunJulAugSepOctNovDec9.5h10.5h11.5h13h14.5h15h14.5h13.5h12.5h11h9.5h9h
Jan: 7:19 AM – 4:41 PM · 9h 23m
Feb: 6:47 AM – 5:13 PM · 10h 26m
Mar: 6:10 AM – 5:50 PM · 11h 40m
Apr: 5:27 AM – 6:33 PM · 13h 06m
May: 4:52 AM – 7:08 PM · 14h 17m
Jun: 4:33 AM – 7:27 PM · 14h 55m
Jul: 4:40 AM – 7:20 PM · 14h 39m
Aug: 5:11 AM – 6:49 PM · 13h 38m
Sep: 5:52 AM – 6:08 PM · 12h 15m
Oct: 6:34 AM – 5:26 PM · 10h 53m
Nov: 7:10 AM – 4:50 PM · 9h 40m
Dec: 7:28 AM – 4:32 PM · 9h 05m
Daylight Longest: 14h 56m · Shortest: 9h 04m

Nearby Stations

Caldwell Essex Co AP, NJ April 14 - October 28 Little Falls, NJ April 15 - October 28 Canoe Brook, NJ April 18 - October 27 Boonton 1 Se, NJ April 17 - October 23 Harrison, NJApril 4 - November 6 Cranford, NJApril 11 - October 31

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