Frost Dates for Montrose, CO

Based on data from Montrose #2 weather station, 1 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. April 28
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 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 May 3
First Fall Frost October 7

Hard Freeze (28°F)

Last Spring Hard Freeze April 14
First Fall Hard Freeze October 24
38.48°N, -107.88°W © OpenStreetMap

Growing Season

169 Days April 28 to October 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 6b

Avg. annual minimum: −5 to 0°F (−21 to −18°C)

Learn more

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

BSk Cold Semi-Arid (Steppe)

Cool to cold with low rainfall and wide temperature swings. Common in the western Great Plains and central Asia. Short growing seasons benefit from season extension techniques.

Köppen climate map

Temperature

10° 40° 70° 100°
29°
High: 40°F
Avg: 29°F
Low: 18°F
Jan
35°
High: 46°F
Avg: 35°F
Low: 23°F
Feb
44°
High: 57°F
Avg: 44°F
Low: 30°F
Mar
50°
High: 64°F
Avg: 50°F
Low: 37°F
Apr
60°
High: 74°F
Avg: 60°F
Low: 45°F
May
69°
High: 86°F
Avg: 69°F
Low: 53°F
Jun
75°
High: 90°F
Avg: 75°F
Low: 59°F
Jul
72°
High: 87°F
Avg: 72°F
Low: 58°F
Aug
64°
High: 79°F
Avg: 64°F
Low: 49°F
Sep
52°
High: 67°F
Avg: 52°F
Low: 37°F
Oct
40°
High: 52°F
Avg: 40°F
Low: 27°F
Nov
29°
High: 41°F
Avg: 29°F
Low: 18°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"
2.1"
2.10"
Jan
1.9"
1.90"
Feb
2.5"
2.48"
Mar
2.1"
2.14"
Apr
2.7"
2.68"
May
2.6"
2.56"
Jun
2.2"
2.21"
Jul
2.7"
2.67"
Aug
3.4"
3.40"
Sep
3.6"
3.61"
Oct
2.8"
2.79"
Nov
2.6"
2.65"
Dec

Sunrise / Sunset

4a7a10a1p4p7p10pNoonJanFebMarAprMayJunJulAugSepOctNovDec9.5h10.5h11.5h13h14h14.5h14.5h13.5h12h11h10h9.5h
Jan: 7:12 AM – 4:48 PM · 9h 36m
Feb: 6:43 AM – 5:17 PM · 10h 33m
Mar: 6:09 AM – 5:51 PM · 11h 42m
Apr: 5:30 AM – 6:30 PM · 13h 01m
May: 4:57 AM – 7:03 PM · 14h 06m
Jun: 4:40 AM – 7:20 PM · 14h 40m
Jul: 4:47 AM – 7:13 PM · 14h 26m
Aug: 5:15 AM – 6:45 PM · 13h 30m
Sep: 5:53 AM – 6:07 PM · 12h 14m
Oct: 6:31 AM – 5:29 PM · 10h 58m
Nov: 7:04 AM – 4:56 PM · 9h 52m
Dec: 7:20 AM – 4:40 PM · 9h 20m
Daylight Longest: 14h 41m · Shortest: 9h 19m

Nearby Stations

Montrose Rgnl AP, CO May 2 - October 8 Montrose 11 Ene, CO May 20 - October 1 Black Canyon Of The Gunnison, CO May 23 - October 1 Cimarron, CO June 20 - September 10 Delta 3e, COMay 1 - October 7 Ridgway, COJune 11 - September 13

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