Frost Dates for Trenton A, Canada

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 2
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 10
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 6
First Fall Frost October 5

Hard Freeze (28°F / -2°C)

Last Spring Hard Freeze April 19
First Fall Hard Freeze October 21
44.12°N, -77.53°W © OpenStreetMap

Growing Season

161 Days May 2 to October 10

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 5a

Learn more

Temperature

10° 30° 50° 70°
20°
High: 29°
Avg: 20°
Low: 11°
Jan
22°
High: 31°
Avg: 22°
Low: 13°
Feb
31°
High: 40°
Avg: 31°
Low: 22°
Mar
43°
High: 53°
Avg: 43°
Low: 34°
Apr
56°
High: 66°
Avg: 56°
Low: 45°
May
65°
High: 75°
Avg: 65°
Low: 55°
Jun
70°
High: 80°
Avg: 70°
Low: 60°
Jul
68°
High: 78°
Avg: 68°
Low: 58°
Aug
61°
High: 71°
Avg: 61°
Low: 50°
Sep
49°
High: 58°
Avg: 49°
Low: 40°
Oct
37°
High: 45°
Avg: 37°
Low: 29°
Nov
27°
High: 35°
Avg: 27°
Low: 20°
Dec
32°F
28°F
Avg High Avg Temp Avg Low Light Frost (32°F) Hard Frost (28°F)

Precipitation

0" 1" 2" 3" 3.7"
3.2"
3.20"
Jan
2.5"
2.50"
Feb
2.7"
2.70"
Mar
3.2"
3.20"
Apr
3.1"
3.10"
May
3.7"
3.70"
Jun
2.8"
2.80"
Jul
2.8"
2.80"
Aug
3.6"
3.60"
Sep
3.4"
3.40"
Oct
3.5"
3.50"
Nov
3.0"
3.00"
Dec

Sunrise / Sunset

4a7a10a1p4p7p10pNoonJanFebMarAprMayJunJulAugSepOctNovDec9h10h12h13h15h15h15h14h12h11h9h9h
Jan: 7:29 AM – 4:31 PM · 9h 03m
Feb: 6:53 AM – 5:07 PM · 10h 14m
Mar: 6:11 AM – 5:49 PM · 11h 38m
Apr: 5:23 AM – 6:37 PM · 13h 14m
May: 4:43 AM – 7:17 PM · 14h 34m
Jun: 4:21 AM – 7:39 PM · 15h 18m
Jul: 4:30 AM – 7:30 PM · 14h 60m
Aug: 5:05 AM – 6:55 PM · 13h 50m
Sep: 5:51 AM – 6:09 PM · 12h 17m
Oct: 6:38 AM – 5:22 PM · 10h 44m
Nov: 7:19 AM – 4:41 PM · 9h 23m
Dec: 7:39 AM – 4:21 PM · 8h 42m
Daylight Longest: 15h 19m · Shortest: 8h 41m

Nearby Stations

Belleville, Canada April 25 - October 15 Wooler, Canada May 6 - September 30 Mountainview, Canada May 1 - October 9 Point Petre (Aut), Canada April 26 - October 25 Cobourg (Aut), Canada April 27 - October 21 Cobourg Stp, Canada May 4 - October 13

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