Frost Dates for Clayton, NY

Based on data from Grenadier Island weather station, 17 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 25
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 22
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 30
First Fall Frost October 17

Hard Freeze (−2°C)

Last Spring Hard Freeze April 11
First Fall Hard Freeze November 4
44.24°N, -76.09°W © OpenStreetMap

Growing Season

180 Days April 25 to October 22

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 5b

Avg. annual minimum: −15 to −10°F (−26 to −23°C)

Learn more

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

Dfb Warm-Summer Continental

Warm summers and cold, snowy winters. A shorter growing season than hot-summer continental. Hardy vegetables, root crops, and cool-season greens do well. Season extension is valuable.

Köppen climate map

Temperature

-15° 0° 15° 30°
-7°
High: -2°C
Avg: -7°C
Low: -11°C
Jan
-5°
High: -1°C
Avg: -5°C
Low: -10°C
Feb
0°
High: 5°C
Avg: 0°C
Low: -5°C
Mar
7°
High: 12°C
Avg: 7°C
Low: 2°C
Apr
13°
High: 19°C
Avg: 13°C
Low: 8°C
May
19°
High: 24°C
Avg: 19°C
Low: 13°C
Jun
21°
High: 27°C
Avg: 21°C
Low: 16°C
Jul
21°
High: 26°C
Avg: 21°C
Low: 16°C
Aug
17°
High: 22°C
Avg: 17°C
Low: 12°C
Sep
10°
High: 14°C
Avg: 10°C
Low: 6°C
Oct
4°
High: 8°C
Avg: 4°C
Low: 1°C
Nov
-3°
High: 1°C
Avg: -3°C
Low: -6°C
Dec
0°C
−2°C
Avg High Avg Temp Avg Low Light Frost (0°C) Hard Frost (−2°C)

Precipitation

0 mm 30 mm 60 mm 90 mm
66 mm
66.0 mm
Jan
46 mm
45.7 mm
Feb
20 mm
20.3 mm
Mar
56 mm
55.9 mm
Apr
74 mm
73.7 mm
May
79 mm
78.7 mm
Jun
71 mm
71.1 mm
Jul
61 mm
61.0 mm
Aug
86 mm
86.4 mm
Sep
99 mm
99.1 mm
Oct
64 mm
63.5 mm
Nov
38 mm
38.1 mm
Dec

Sunrise / Sunset

4a7a10a1p4p7p10pNoonJanFebMarAprMayJunJulAugSepOctNovDec9h10h11.5h13h14.5h15.5h15h14h12.5h10.5h9.5h8.5h
Jan: 7:30 AM – 4:30 PM · 9h 01m
Feb: 6:54 AM – 5:06 PM · 10h 13m
Mar: 6:11 AM – 5:49 PM · 11h 38m
Apr: 5:23 AM – 6:37 PM · 13h 15m
May: 4:42 AM – 7:18 PM · 14h 36m
Jun: 4:20 AM – 7:40 PM · 15h 20m
Jul: 4:29 AM – 7:31 PM · 15h 02m
Aug: 5:04 AM – 6:56 PM · 13h 51m
Sep: 5:51 AM – 6:09 PM · 12h 17m
Oct: 6:38 AM – 5:22 PM · 10h 44m
Nov: 7:20 AM – 4:40 PM · 9h 21m
Dec: 7:40 AM – 4:20 PM · 8h 40m
Daylight Longest: 15h 21m · Shortest: 8h 39m

Nearby Stations

Lyndhurst Shawmere, Canada May 6 - October 12 Brockville Pcc, Canada April 27 - October 14 Gouverneur 3 Nw, NY May 14 - September 26 Ogdensburg 4 Ne, NY April 29 - October 10 Watertown, NYMay 2 - October 13 Watertown Intl AP, NY May 11 - October 1

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