Frost Dates for Aberdeen, ID

Based on data from Aberdeen Exp Stn weather station, 1 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. May 21
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 20
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 31
First Fall Frost September 13

Hard Freeze (28°F)

Last Spring Hard Freeze May 3
First Fall Hard Freeze October 1
42.94°N, -112.84°W © OpenStreetMap

Growing Season

122 Days May 21 to September 20

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.

BSk Cold Semi-Arid (Steppe)

Cool to cold with low rainfall and wide temperature swings. Common in the western Great Plains and central Asia. Short growing seasons benefit from season extension techniques.

Köppen climate map

Temperature

10° 30° 50° 70° 90°
23°
High: 32°F
Avg: 23°F
Low: 14°F
Jan
27°
High: 37°F
Avg: 27°F
Low: 17°F
Feb
37°
High: 48°F
Avg: 37°F
Low: 26°F
Mar
44°
High: 58°F
Avg: 44°F
Low: 31°F
Apr
54°
High: 68°F
Avg: 54°F
Low: 40°F
May
61°
High: 77°F
Avg: 61°F
Low: 46°F
Jun
69°
High: 87°F
Avg: 69°F
Low: 51°F
Jul
68°
High: 87°F
Avg: 68°F
Low: 49°F
Aug
58°
High: 76°F
Avg: 58°F
Low: 40°F
Sep
46°
High: 61°F
Avg: 46°F
Low: 30°F
Oct
33°
High: 45°F
Avg: 33°F
Low: 22°F
Nov
24°
High: 33°F
Avg: 24°F
Low: 15°F
Dec
32°F
28°F
Avg High Avg Temp Avg Low Light Frost (32°F) Hard Frost (28°F)

Precipitation

0" 1" 2" 2.8"
1.9"
1.91"
Jan
2.0"
1.96"
Feb
2.2"
2.17"
Mar
2.2"
2.23"
Apr
2.7"
2.73"
May
2.5"
2.54"
Jun
1.8"
1.81"
Jul
2.0"
2.00"
Aug
2.8"
2.76"
Sep
2.8"
2.83"
Oct
2.1"
2.09"
Nov
2.2"
2.17"
Dec

Sunrise / Sunset

4a7a10a1p4p7p10pNoonJanFebMarAprMayJunJulAugSepOctNovDec9h10.5h11.5h13h14.5h15h15h14h12.5h11h9.5h9h
Jan: 7:25 AM – 4:35 PM · 9h 10m
Feb: 6:51 AM – 5:09 PM · 10h 18m
Mar: 6:11 AM – 5:49 PM · 11h 39m
Apr: 5:24 AM – 6:36 PM · 13h 11m
May: 4:46 AM – 7:14 PM · 14h 28m
Jun: 4:25 AM – 7:35 PM · 15h 09m
Jul: 4:34 AM – 7:26 PM · 14h 52m
Aug: 5:07 AM – 6:53 PM · 13h 46m
Sep: 5:52 AM – 6:08 PM · 12h 17m
Oct: 6:36 AM – 5:24 PM · 10h 48m
Nov: 7:15 AM – 4:45 PM · 9h 29m
Dec: 7:35 AM – 4:25 PM · 8h 51m
Daylight Longest: 15h 11m · Shortest: 8h 50m

Nearby Stations

American Falls 6 Ne, ID May 14 - October 2 American Falls, ID May 4 - October 8 Pocatello Rgnl AP, ID May 23 - September 18 Pocatello City, ID May 2 - October 11 Pocatello 2 Ne, ID May 16 - October 2 Massacre Rocks Sp, ID May 20 - September 26

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