Frost Dates for Newhalem, WA

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 2
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. November 14
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 9
First Fall Frost November 7

Hard Freeze (28°F / -2°C)

Last Spring Hard Freeze March 2
First Fall Hard Freeze December 4
48.68°N, -121.24°W © OpenStreetMap

Growing Season

226 Days April 2 to November 14

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 8b

Learn more

Temperature

30° 50° 70°
36°
High: 40°
Avg: 36°
Low: 32°
Jan
38°
High: 44°
Avg: 38°
Low: 33°
Feb
42°
High: 49°
Avg: 42°
Low: 35°
Mar
49°
High: 58°
Avg: 49°
Low: 40°
Apr
56°
High: 67°
Avg: 56°
Low: 46°
May
60°
High: 70°
Avg: 60°
Low: 50°
Jun
66°
High: 78°
Avg: 66°
Low: 54°
Jul
67°
High: 79°
Avg: 67°
Low: 54°
Aug
61°
High: 71°
Avg: 61°
Low: 50°
Sep
50°
High: 57°
Avg: 50°
Low: 44°
Oct
41°
High: 45°
Avg: 41°
Low: 37°
Nov
36°
High: 40°
Avg: 36°
Low: 33°
Dec
32°F
Avg High Avg Temp Avg Low Light Frost (32°F)

Precipitation

0" 4" 8" 12" 13.2"
12.5"
12.54"
Jan
9.0"
9.01"
Feb
7.8"
7.83"
Mar
5.4"
5.41"
Apr
4.1"
4.13"
May
3.3"
3.30"
Jun
3.6"
3.57"
Jul
4.0"
4.03"
Aug
5.0"
4.97"
Sep
9.0"
9.02"
Oct
12.4"
12.40"
Nov
13.2"
13.15"
Dec

Sunrise / Sunset

4a7a10a1p4p7p10pNoonJanFebMarAprMayJunJulAugSepOctNovDec8h10h12h13h15h16h16h14h12h11h9h8h
Jan: 7:45 AM – 4:15 PM · 8h 30m
Feb: 7:02 AM – 4:58 PM · 9h 55m
Mar: 6:13 AM – 5:47 PM · 11h 34m
Apr: 5:17 AM – 6:43 PM · 13h 27m
May: 4:29 AM – 7:31 PM · 15h 02m
Jun: 4:03 AM – 7:57 PM · 15h 55m
Jul: 4:13 AM – 7:47 PM · 15h 33m
Aug: 4:55 AM – 7:05 PM · 14h 10m
Sep: 5:50 AM – 6:10 PM · 12h 20m
Oct: 6:44 AM – 5:16 PM · 10h 31m
Nov: 7:33 AM – 4:27 PM · 8h 54m
Dec: 7:58 AM – 4:02 PM · 8h 05m
Daylight Longest: 15h 56m · Shortest: 8h 04m

Nearby Stations

Diablo Dam, WA April 10 - November 1 Ross Dam, WAApril 8 - November 10 Darrington 21 Nne, WA April 16 - October 25 Upper Baker Dam, WA April 24 - October 29 Concrete Ppl Fish Stn, WA March 28 - November 14 Stehekin 4 Nw, WA April 27 - October 17

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