Frost Dates for Lowell Three Rivers, ID

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 16
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 25
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 25
First Fall Frost October 16

Hard Freeze (28°F / -2°C)

Last Spring Hard Freeze March 17
First Fall Hard Freeze November 10
46.14°N, -115.60°W © OpenStreetMap

Growing Season

192 Days April 16 to October 25

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 7b

Learn more

Temperature

20° 40° 60° 80° 100°
34°
High: 40°
Avg: 34°
Low: 29°
Jan
37°
High: 44°
Avg: 37°
Low: 30°
Feb
44°
High: 54°
Avg: 44°
Low: 34°
Mar
50°
High: 63°
Avg: 50°
Low: 38°
Apr
58°
High: 72°
Avg: 58°
Low: 44°
May
65°
High: 79°
Avg: 65°
Low: 50°
Jun
74°
High: 92°
Avg: 74°
Low: 55°
Jul
73°
High: 92°
Avg: 73°
Low: 54°
Aug
63°
High: 79°
Avg: 63°
Low: 48°
Sep
51°
High: 61°
Avg: 51°
Low: 40°
Oct
40°
High: 46°
Avg: 40°
Low: 33°
Nov
33°
High: 38°
Avg: 33°
Low: 29°
Dec
32°F
28°F
Avg High Avg Temp Avg Low Light Frost (32°F) Hard Frost (28°F)

Precipitation

0" 2" 4" 5.6"
5.1"
5.14"
Jan
4.6"
4.61"
Feb
5.6"
5.58"
Mar
5.4"
5.36"
Apr
5.2"
5.16"
May
3.6"
3.62"
Jun
1.8"
1.81"
Jul
2.5"
2.52"
Aug
3.6"
3.58"
Sep
4.3"
4.31"
Oct
4.8"
4.81"
Nov
5.2"
5.21"
Dec

Sunrise / Sunset

4a7a10a1p4p7p10pNoonJanFebMarAprMayJunJulAugSepOctNovDec9h10h12h13h15h16h15h14h12h11h9h8h
Jan: 7:36 AM – 4:24 PM · 8h 49m
Feb: 6:57 AM – 5:03 PM · 10h 06m
Mar: 6:12 AM – 5:48 PM · 11h 37m
Apr: 5:20 AM – 6:40 PM · 13h 20m
May: 4:37 AM – 7:23 PM · 14h 46m
Jun: 4:13 AM – 7:47 PM · 15h 33m
Jul: 4:23 AM – 7:37 PM · 15h 14m
Aug: 5:01 AM – 6:59 PM · 13h 58m
Sep: 5:51 AM – 6:09 PM · 12h 18m
Oct: 6:41 AM – 5:19 PM · 10h 39m
Nov: 7:25 AM – 4:35 PM · 9h 11m
Dec: 7:47 AM – 4:13 PM · 8h 27m
Daylight Longest: 15h 35m · Shortest: 8h 25m

Nearby Stations

Fenn Rs, IDApril 26 - October 20 Kooskia 5 Sse, ID April 30 - October 11 Kamiah, IDApril 29 - October 5 Elk City 1ne, ID Pierce, IDJune 3 - September 7 Grangeville, IDMay 9 - October 3

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