Frost Dates for Lamar Rs, WY

Elevation: 2004 m

Frost Dates

This location has year-round freezing temperatures.

44.90°N, -110.23°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 4a

Avg. annual minimum: −30 to −25°F

Learn more

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

Dfc Subarctic

Short, cool summers and long, very cold winters. Growing seasons of 3–4 months require fast-maturing varieties. Root vegetables, potatoes, and cold-hardy greens are the most reliable.

Köppen climate map

Temperature

0° 30° 60° 90°
14°
High: 27°F
Avg: 14°F
Low: 1°F
Jan
18°
High: 31°F
Avg: 18°F
Low: 5°F
Feb
27°
High: 41°F
Avg: 27°F
Low: 13°F
Mar
37°
High: 50°F
Avg: 37°F
Low: 24°F
Apr
46°
High: 60°F
Avg: 46°F
Low: 32°F
May
53°
High: 69°F
Avg: 53°F
Low: 37°F
Jun
62°
High: 82°F
Avg: 62°F
Low: 42°F
Jul
60°
High: 80°F
Avg: 60°F
Low: 39°F
Aug
52°
High: 71°F
Avg: 52°F
Low: 33°F
Sep
40°
High: 54°F
Avg: 40°F
Low: 26°F
Oct
25°
High: 38°F
Avg: 25°F
Low: 13°F
Nov
15°
High: 27°F
Avg: 15°F
Low: 3°F
Dec
32°F
28°F
Avg High Avg Temp Avg Low Light Frost (32°F) Hard Frost (28°F)

Precipitation

0" 1" 2" 3.0"
1.9"
1.86"
Jan
1.5"
1.51"
Feb
1.8"
1.76"
Mar
2.6"
2.61"
Apr
3.0"
2.99"
May
2.4"
2.40"
Jun
2.2"
2.17"
Jul
2.2"
2.17"
Aug
2.2"
2.23"
Sep
2.5"
2.48"
Oct
2.1"
2.11"
Nov
1.7"
1.71"
Dec

Sunrise / Sunset

4a7a10a1p4p7p10pNoonJanFebMarAprMayJunJulAugSepOctNovDec9h10h11.5h13.5h14.5h15.5h15h14h12.5h10.5h9.5h8.5h
Jan: 7:31 AM – 4:29 PM · 8h 57m
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 39m
Jun: 4:18 AM – 7:42 PM · 15h 23m
Jul: 4:27 AM – 7:33 PM · 15h 05m
Aug: 5:03 AM – 6:57 PM · 13h 53m
Sep: 5:51 AM – 6:09 PM · 12h 18m
Oct: 6:39 AM – 5:21 PM · 10h 42m
Nov: 7:21 AM – 4:39 PM · 9h 18m
Dec: 7:42 AM – 4:18 PM · 8h 36m
Daylight Longest: 15h 25m · Shortest: 8h 35m

Nearby Stations

Tower Falls, WY Cooke City 2 W, MT Silver Gate, MT Yellowstone Park Mammoth, WY June 3 - September 14 Lake Yellowstone, WY Gardiner, MTMay 21 - September 27

Plan Your Garden with Planter

Now that you know your frost dates, use Planter to plan your veggie garden! Planter is an easy drag-and-drop garden planner with personalized planting schedules.

Try Planter For Free

Available everywhere: iOS, Android, web, and more!

Planter app garden planner preview