Frost Dates for Silverton, CO

Frost Dates

This location has year-round freezing temperatures.

37.81°N, -107.66°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 4b

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Temperature

-10° 20° 50° 80°
14°
High: 34°
Avg: 14°
Low: -6°
Jan
17°
High: 36°
Avg: 17°
Low: -3°
Feb
24°
High: 43°
Avg: 24°
Low: 6°
Mar
33°
High: 48°
Avg: 33°
Low: 17°
Apr
42°
High: 58°
Avg: 42°
Low: 25°
May
51°
High: 70°
Avg: 51°
Low: 31°
Jun
57°
High: 75°
Avg: 57°
Low: 38°
Jul
55°
High: 72°
Avg: 55°
Low: 37°
Aug
48°
High: 66°
Avg: 48°
Low: 30°
Sep
38°
High: 55°
Avg: 38°
Low: 20°
Oct
25°
High: 43°
Avg: 25°
Low: 7°
Nov
14°
High: 34°
Avg: 14°
Low: -5°
Dec
32°F
28°F
Avg High Avg Temp Avg Low Light Frost (32°F) Hard Frost (28°F)

Precipitation

0" 2" 4" 4.6"
4.0"
3.99"
Jan
3.8"
3.77"
Feb
4.6"
4.57"
Mar
3.5"
3.51"
Apr
3.1"
3.06"
May
2.5"
2.52"
Jun
3.1"
3.11"
Jul
3.4"
3.38"
Aug
4.6"
4.58"
Sep
4.2"
4.18"
Oct
3.9"
3.90"
Nov
4.3"
4.29"
Dec

Sunrise / Sunset

4a7a10a1p4p7p10pNoonJanFebMarAprMayJunJulAugSepOctNovDec10h11h12h13h14h15h14h13h12h11h10h9h
Jan: 7:10 AM – 4:50 PM · 9h 39m
Feb: 6:42 AM – 5:18 PM · 10h 36m
Mar: 6:09 AM – 5:51 PM · 11h 42m
Apr: 5:30 AM – 6:30 PM · 12h 59m
May: 4:59 AM – 7:01 PM · 14h 02m
Jun: 4:42 AM – 7:18 PM · 14h 36m
Jul: 4:49 AM – 7:11 PM · 14h 23m
Aug: 5:16 AM – 6:44 PM · 13h 28m
Sep: 5:53 AM – 6:07 PM · 12h 14m
Oct: 6:30 AM – 5:30 PM · 10h 60m
Nov: 7:03 AM – 4:57 PM · 9h 55m
Dec: 7:18 AM – 4:42 PM · 9h 24m
Daylight Longest: 14h 37m · Shortest: 9h 23m

Nearby Stations

Ouray, COMay 17 - October 1 Telluride 4wnw, CO Ouray #2, COMay 18 - October 4 Rio Grande Rsvr, CO June 15 - September 11 Ridgway, COJune 11 - September 13 Lake City, CO June 8 - September 17

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