Frost Dates for Creston Campbell Scientific, BC

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 20
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 17
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 28
First Fall Frost October 12

Hard Freeze (−2°C)

Last Spring Hard Freeze March 24
First Fall Hard Freeze October 29
49.08°N, -116.50°W © OpenStreetMap

Growing Season

180 Days April 20 to October 17

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 7a

Avg. annual minimum: 0 to 5°F (−18 to −15°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

-5° 5° 15° 25°
-1°
High: 1°C
Avg: -1°C
Low: -4°C
Jan
0°
High: 3°C
Avg: 0°C
Low: -3°C
Feb
4°
High: 9°C
Avg: 4°C
Low: 0°C
Mar
9°
High: 14°C
Avg: 9°C
Low: 3°C
Apr
14°
High: 20°C
Avg: 14°C
Low: 7°C
May
17°
High: 23°C
Avg: 17°C
Low: 11°C
Jun
22°
High: 29°C
Avg: 22°C
Low: 14°C
Jul
21°
High: 28°C
Avg: 21°C
Low: 14°C
Aug
16°
High: 22°C
Avg: 16°C
Low: 9°C
Sep
8°
High: 13°C
Avg: 8°C
Low: 3°C
Oct
2°
High: 5°C
Avg: 2°C
Low: -1°C
Nov
-2°
High: 1°C
Avg: -2°C
Low: -4°C
Dec
0°C
−2°C
Avg High Avg Temp Avg Low Light Frost (0°C) Hard Frost (−2°C)

Precipitation

0 mm 20 mm 40 mm 60 mm
38 mm
38.1 mm
Jan
28 mm
27.9 mm
Feb
53 mm
53.3 mm
Mar
20 mm
20.3 mm
Apr
48 mm
48.3 mm
May
64 mm
63.5 mm
Jun
18 mm
17.8 mm
Jul
5 mm
5.1 mm
Aug
23 mm
22.9 mm
Sep
51 mm
50.8 mm
Oct
58 mm
58.4 mm
Nov
61 mm
61.0 mm
Dec

Sunrise / Sunset

4a7a10a1p4p7p10pNoonJanFebMarAprMayJunJulAugSepOctNovDec8.5h10h11.5h13.5h15h16h15.5h14h12.5h10.5h9h8h
Jan: 7:47 AM – 4:13 PM · 8h 27m
Feb: 7:03 AM – 4:57 PM · 9h 53m
Mar: 6:13 AM – 5:47 PM · 11h 34m
Apr: 5:16 AM – 6:44 PM · 13h 28m
May: 4:28 AM – 7:32 PM · 15h 05m
Jun: 4:01 AM – 7:59 PM · 15h 59m
Jul: 4:12 AM – 7:48 PM · 15h 36m
Aug: 4:54 AM – 7:06 PM · 14h 12m
Sep: 5:50 AM – 6:10 PM · 12h 20m
Oct: 6:45 AM – 5:15 PM · 10h 30m
Nov: 7:34 AM – 4:26 PM · 8h 51m
Dec: 7:59 AM – 4:01 PM · 8h 01m
Daylight Longest: 16h 00m · Shortest: 7h 60m

Nearby Stations

Creston, BCMay 1 - October 14 Lister, BCMay 1 - October 10 Porthill 1 Sw, ID May 4 - September 30 Bonners Ferry, ID April 30 - October 4 Boundary Dam, WAMay 4 - October 4 Yaak 9nne, MT

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