Frost Dates for Hart Mtn Refuge, OR

Elevation: 1712 m

Frost Dates

This location has year-round freezing temperatures.

42.55°N, -119.66°W © OpenStreetMap

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

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°
31°
High: 41°F
Avg: 31°F
Low: 22°F
Jan
32°
High: 42°F
Avg: 32°F
Low: 21°F
Feb
36°
High: 48°F
Avg: 36°F
Low: 25°F
Mar
41°
High: 53°F
Avg: 41°F
Low: 28°F
Apr
49°
High: 62°F
Avg: 49°F
Low: 35°F
May
56°
High: 72°F
Avg: 56°F
Low: 40°F
Jun
65°
High: 83°F
Avg: 65°F
Low: 47°F
Jul
64°
High: 83°F
Avg: 64°F
Low: 46°F
Aug
56°
High: 74°F
Avg: 56°F
Low: 39°F
Sep
46°
High: 61°F
Avg: 46°F
Low: 31°F
Oct
36°
High: 47°F
Avg: 36°F
Low: 24°F
Nov
29°
High: 39°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" 3" 3.6"
3.4"
3.41"
Jan
3.0"
2.98"
Feb
2.4"
2.39"
Mar
2.1"
2.10"
Apr
2.6"
2.58"
May
2.5"
2.49"
Jun
0.7"
0.70"
Jul
0.0"
0.00"
Aug
0.4"
0.40"
Sep
2.9"
2.92"
Oct
3.1"
3.10"
Nov
3.6"
3.56"
Dec

Sunrise / Sunset

4a7a10a1p4p7p10pNoonJanFebMarAprMayJunJulAugSepOctNovDec9h10.5h11.5h13h14.5h15h15h13.5h12.5h11h9.5h9h
Jan: 7:24 AM – 4:36 PM · 9h 13m
Feb: 6:50 AM – 5:10 PM · 10h 20m
Mar: 6:10 AM – 5:50 PM · 11h 39m
Apr: 5:25 AM – 6:35 PM · 13h 10m
May: 4:47 AM – 7:13 PM · 14h 26m
Jun: 4:27 AM – 7:33 PM · 15h 06m
Jul: 4:35 AM – 7:25 PM · 14h 50m
Aug: 5:08 AM – 6:52 PM · 13h 44m
Sep: 5:52 AM – 6:08 PM · 12h 16m
Oct: 6:36 AM – 5:24 PM · 10h 49m
Nov: 7:14 AM – 4:46 PM · 9h 31m
Dec: 7:33 AM – 4:27 PM · 8h 53m
Daylight Longest: 15h 08m · Shortest: 8h 52m

Nearby Stations

Alkali Lake, OR June 10 - September 14 Lakeview 2 Nnw, OR June 4 - September 17 Paisley, ORJune 6 - September 14 Denio 52 Wsw, NV June 13 - September 20 Bly 4 Se, ORJune 8 - September 17 O O Rch, ORJune 11 - September 6

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