Frost Dates for New Preston, CT

Based on data from Falls Village weather station, 19 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. May 11
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 4
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 May 18
First Fall Frost September 30

Hard Freeze (28°F)

Last Spring Hard Freeze April 30
First Fall Hard Freeze October 15
41.68°N, -73.35°W © OpenStreetMap

Growing Season

146 Days May 11 to October 4

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 6a

Avg. annual minimum: −10 to −5°F (−23 to −21°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

10° 30° 50° 70° 90°
25°
High: 35°F
Avg: 25°F
Low: 14°F
Jan
27°
High: 39°F
Avg: 27°F
Low: 15°F
Feb
35°
High: 47°F
Avg: 35°F
Low: 23°F
Mar
47°
High: 60°F
Avg: 47°F
Low: 33°F
Apr
58°
High: 72°F
Avg: 58°F
Low: 44°F
May
66°
High: 80°F
Avg: 66°F
Low: 53°F
Jun
71°
High: 85°F
Avg: 71°F
Low: 58°F
Jul
69°
High: 82°F
Avg: 69°F
Low: 57°F
Aug
62°
High: 76°F
Avg: 62°F
Low: 49°F
Sep
51°
High: 63°F
Avg: 51°F
Low: 38°F
Oct
40°
High: 51°F
Avg: 40°F
Low: 29°F
Nov
30°
High: 40°F
Avg: 30°F
Low: 20°F
Dec
32°F
28°F
Avg High Avg Temp Avg Low Light Frost (32°F) Hard Frost (28°F)

Precipitation

0" 2" 4" 6" 6.3"
4.4"
4.44"
Jan
4.4"
4.37"
Feb
5.1"
5.10"
Mar
4.4"
4.43"
Apr
4.5"
4.54"
May
5.4"
5.43"
Jun
5.9"
5.94"
Jul
6.3"
6.34"
Aug
5.7"
5.68"
Sep
4.6"
4.63"
Oct
4.2"
4.24"
Nov
5.1"
5.09"
Dec

Sunrise / Sunset

4a7a10a1p4p7p10pNoonJanFebMarAprMayJunJulAugSepOctNovDec9.5h10.5h11.5h13h14.5h15h15h13.5h12.5h11h9.5h9h
Jan: 7:22 AM – 4:38 PM · 9h 16m
Feb: 6:49 AM – 5:11 PM · 10h 22m
Mar: 6:10 AM – 5:50 PM · 11h 40m
Apr: 5:26 AM – 6:34 PM · 13h 09m
May: 4:49 AM – 7:11 PM · 14h 22m
Jun: 4:29 AM – 7:31 PM · 15h 02m
Jul: 4:37 AM – 7:23 PM · 14h 46m
Aug: 5:09 AM – 6:51 PM · 13h 42m
Sep: 5:52 AM – 6:08 PM · 12h 16m
Oct: 6:35 AM – 5:25 PM · 10h 50m
Nov: 7:13 AM – 4:47 PM · 9h 35m
Dec: 7:31 AM – 4:29 PM · 8h 57m
Daylight Longest: 15h 04m · Shortest: 8h 56m

Nearby Stations

Norfolk 2 Sw, CT May 3 - October 11 Copake, NYMay 4 - October 11 Bakersville, CTMay 8 - October 5 Barkhamsted, CT April 30 - October 17 Millbrook 3 W, NY May 4 - October 7 Burlington, CT April 25 - October 18

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