Frost Dates for Baker City, OR

Based on data from Baker City Muni AP weather station, 5 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 25
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 15
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 4
First Fall Frost September 9

Hard Freeze (28°F)

Last Spring Hard Freeze May 8
First Fall Hard Freeze September 27
44.77°N, -117.83°W © OpenStreetMap

Growing Season

113 Days May 25 to September 15

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 6a

Avg. annual minimum: −10 to −5°F (−23 to −21°C)

Learn more

Köppen Climate iThe Köppen climate classification system categorizes climates based on temperature and precipitation patterns.

Dsb Warm-Summer Continental (Dry Summer)

Warm, dry summers and cold, snowy winters. Common in mountain regions. Moderate growing season with irrigation needs in summer.

Köppen climate map

Temperature

10° 30° 50° 70° 90°
29°
High: 38°F
Avg: 29°F
Low: 20°F
Jan
34°
High: 44°F
Avg: 34°F
Low: 23°F
Feb
41°
High: 54°F
Avg: 41°F
Low: 28°F
Mar
46°
High: 61°F
Avg: 46°F
Low: 31°F
Apr
54°
High: 70°F
Avg: 54°F
Low: 39°F
May
61°
High: 77°F
Avg: 61°F
Low: 44°F
Jun
69°
High: 88°F
Avg: 69°F
Low: 49°F
Jul
68°
High: 88°F
Avg: 68°F
Low: 47°F
Aug
59°
High: 79°F
Avg: 59°F
Low: 39°F
Sep
47°
High: 64°F
Avg: 47°F
Low: 30°F
Oct
36°
High: 48°F
Avg: 36°F
Low: 25°F
Nov
29°
High: 37°F
Avg: 29°F
Low: 20°F
Dec
32°F
28°F
Avg High Avg Temp Avg Low Light Frost (32°F) Hard Frost (28°F)

Precipitation

0" 1" 2" 2.1"
1.2"
1.24"
Jan
1.3"
1.32"
Feb
1.3"
1.32"
Mar
1.6"
1.58"
Apr
2.1"
2.10"
May
2.1"
2.10"
Jun
1.9"
1.95"
Jul
1.9"
1.86"
Aug
1.7"
1.69"
Sep
1.5"
1.49"
Oct
1.2"
1.20"
Nov
1.2"
1.24"
Dec

Sunrise / Sunset

4a7a10a1p4p7p10pNoonJanFebMarAprMayJunJulAugSepOctNovDec9h10h11.5h13.5h14.5h15.5h15h14h12.5h10.5h9.5h8.5h
Jan: 7:31 AM – 4:29 PM · 8h 58m
Feb: 6:54 AM – 5:06 PM · 10h 11m
Mar: 6:11 AM – 5:49 PM · 11h 38m
Apr: 5:22 AM – 6:38 PM · 13h 16m
May: 4:41 AM – 7:19 PM · 14h 38m
Jun: 4:18 AM – 7:42 PM · 15h 23m
Jul: 4:28 AM – 7:32 PM · 15h 05m
Aug: 5:04 AM – 6:56 PM · 13h 53m
Sep: 5:51 AM – 6:09 PM · 12h 18m
Oct: 6:39 AM – 5:21 PM · 10h 43m
Nov: 7:21 AM – 4:39 PM · 9h 18m
Dec: 7:42 AM – 4:18 PM · 8h 37m
Daylight Longest: 15h 24m · Shortest: 8h 36m

Nearby Stations

Union, ORMay 11 - September 26 Richland, ORMay 10 - October 1 Halfway, ORMay 15 - September 24 La Grande, ORMay 6 - October 1 Austin 3 S, OR Huntington, OR April 23 - October 13

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