Frost Dates for Caribou Muni AP, ME

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 7
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 1
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 13
First Fall Frost September 25

Hard Freeze (28°F / -2°C)

Last Spring Hard Freeze April 26
First Fall Hard Freeze October 12
46.87°N, -68.02°W © OpenStreetMap

Growing Season

147 Days May 7 to October 1

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 4b

Learn more

Temperature

0° 20° 40° 60° 80°
12°
High: 21°
Avg: 12°
Low: 3°
Jan
14°
High: 24°
Avg: 14°
Low: 4°
Feb
25°
High: 34°
Avg: 25°
Low: 16°
Mar
39°
High: 48°
Avg: 39°
Low: 29°
Apr
52°
High: 63°
Avg: 52°
Low: 41°
May
61°
High: 72°
Avg: 61°
Low: 51°
Jun
67°
High: 77°
Avg: 67°
Low: 56°
Jul
65°
High: 76°
Avg: 65°
Low: 54°
Aug
57°
High: 67°
Avg: 57°
Low: 46°
Sep
45°
High: 53°
Avg: 45°
Low: 36°
Oct
33°
High: 40°
Avg: 33°
Low: 26°
Nov
20°
High: 28°
Avg: 20°
Low: 12°
Dec
32°F
28°F
Avg High Avg Temp Avg Low Light Frost (32°F) Hard Frost (28°F)

Precipitation

0" 2" 4" 4.7"
2.8"
2.82"
Jan
2.6"
2.56"
Feb
3.1"
3.15"
Mar
3.9"
3.92"
Apr
4.3"
4.34"
May
4.4"
4.42"
Jun
4.7"
4.70"
Jul
4.5"
4.53"
Aug
4.2"
4.23"
Sep
4.3"
4.33"
Oct
3.4"
3.39"
Nov
3.3"
3.32"
Dec

Sunrise / Sunset

4a7a10a1p4p7p10pNoonJanFebMarAprMayJunJulAugSepOctNovDec9h10h12h13h15h16h15h14h12h11h9h8h
Jan: 7:38 AM – 4:22 PM · 8h 44m
Feb: 6:58 AM – 5:02 PM · 10h 03m
Mar: 6:12 AM – 5:48 PM · 11h 36m
Apr: 5:19 AM – 6:41 PM · 13h 22m
May: 4:35 AM – 7:25 PM · 14h 50m
Jun: 4:10 AM – 7:50 PM · 15h 39m
Jul: 4:20 AM – 7:40 PM · 15h 19m
Aug: 4:59 AM – 7:01 PM · 14h 01m
Sep: 5:51 AM – 6:09 PM · 12h 19m
Oct: 6:42 AM – 5:18 PM · 10h 37m
Nov: 7:27 AM – 4:33 PM · 9h 06m
Dec: 7:50 AM – 4:10 PM · 8h 21m
Daylight Longest: 15h 41m · Shortest: 8h 19m

Nearby Stations

Limestone 4 Nnw, ME May 16 - September 24 Presque Isle, ME May 14 - September 26 Aroostook, Canada May 26 - September 25 Van Buren 2, ME May 23 - September 26 St Leonard A, Canada May 21 - September 16 Bridgewater, ME May 25 - September 18

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