Frost Dates for Whitbourne, NL

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. June 9
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. September 23
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 June 17
First Fall Frost September 13

Hard Freeze (−2°C)

Last Spring Hard Freeze May 14
First Fall Hard Freeze October 19
47.42°N, -53.53°W © OpenStreetMap

Growing Season

106 Days June 9 to September 23

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.

Dfc Subarctic

Short, cool summers and long, very cold winters. Growing seasons of 3–4 months require fast-maturing varieties. Root vegetables, potatoes, and cold-hardy greens are the most reliable.

Köppen climate map

Temperature

-10° 0° 10° 20°
-4°
High: 0°C
Avg: -4°C
Low: -9°C
Jan
-5°
High: 0°C
Avg: -5°C
Low: -9°C
Feb
-2°
High: 3°C
Avg: -2°C
Low: -6°C
Mar
3°
High: 7°C
Avg: 3°C
Low: -2°C
Apr
7°
High: 12°C
Avg: 7°C
Low: 2°C
May
11°
High: 17°C
Avg: 11°C
Low: 6°C
Jun
16°
High: 21°C
Avg: 16°C
Low: 11°C
Jul
17°
High: 21°C
Avg: 17°C
Low: 12°C
Aug
13°
High: 18°C
Avg: 13°C
Low: 8°C
Sep
8°
High: 12°C
Avg: 8°C
Low: 4°C
Oct
3°
High: 7°C
Avg: 3°C
Low: -1°C
Nov
-1°
High: 3°C
Avg: -1°C
Low: -5°C
Dec
0°C
−2°C
Avg High Avg Temp Avg Low Light Frost (0°C) Hard Frost (−2°C)

Precipitation

0 mm 50 mm 100 mm 150 mm 200 mm
191 mm
190.5 mm
Jan
165 mm
165.1 mm
Feb
142 mm
142.2 mm
Mar
114 mm
114.3 mm
Apr
97 mm
96.5 mm
May
107 mm
106.7 mm
Jun
127 mm
127.0 mm
Jul
122 mm
121.9 mm
Aug
145 mm
144.8 mm
Sep
178 mm
177.8 mm
Oct
168 mm
167.6 mm
Nov
193 mm
193.0 mm
Dec

Sunrise / Sunset

4a7a10a1p4p7p10pNoonJanFebMarAprMayJunJulAugSepOctNovDec8.5h10h11.5h13.5h15h15.5h15.5h14h12.5h10.5h9h8.5h
Jan: 7:40 AM – 4:20 PM · 8h 40m
Feb: 6:60 AM – 5:00 PM · 10h 01m
Mar: 6:12 AM – 5:48 PM · 11h 35m
Apr: 5:18 AM – 6:42 PM · 13h 23m
May: 4:33 AM – 7:27 PM · 14h 54m
Jun: 4:08 AM – 7:52 PM · 15h 44m
Jul: 4:18 AM – 7:42 PM · 15h 23m
Aug: 4:58 AM – 7:02 PM · 14h 04m
Sep: 5:50 AM – 6:10 PM · 12h 19m
Oct: 6:42 AM – 5:18 PM · 10h 35m
Nov: 7:29 AM – 4:31 PM · 9h 02m
Dec: 7:52 AM – 4:08 PM · 8h 16m
Daylight Longest: 15h 45m · Shortest: 8h 15m

Nearby Stations

Butlerville, NL June 13 - September 21 Holyrood Gen Stn, NL June 5 - October 10 Argentia (Aut), NL May 4 - November 8 St John'S A, NL May 26 - October 18 Goobies, NLJune 12 - September 2 Branch, NLJune 4 - September 22

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