Frost Dates for Manassa, CO

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. May 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. September 21
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 June 2
First Fall Frost September 17

Hard Freeze (28°F / -2°C)

Last Spring Hard Freeze May 13
First Fall Hard Freeze September 29
37.17°N, -105.94°W © OpenStreetMap

Growing Season

116 Days May 28 to September 21

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 5a

Learn more

Temperature

0° 30° 60° 90°
20°
High: 35°
Avg: 20°
Low: 5°
Jan
27°
High: 41°
Avg: 27°
Low: 13°
Feb
37°
High: 53°
Avg: 37°
Low: 21°
Mar
44°
High: 60°
Avg: 44°
Low: 28°
Apr
53°
High: 69°
Avg: 53°
Low: 37°
May
61°
High: 79°
Avg: 61°
Low: 44°
Jun
65°
High: 81°
Avg: 65°
Low: 49°
Jul
63°
High: 79°
Avg: 63°
Low: 47°
Aug
57°
High: 73°
Avg: 57°
Low: 40°
Sep
46°
High: 63°
Avg: 46°
Low: 28°
Oct
33°
High: 49°
Avg: 33°
Low: 17°
Nov
21°
High: 36°
Avg: 21°
Low: 6°
Dec
32°F
28°F
Avg High Avg Temp Avg Low Light Frost (32°F) Hard Frost (28°F)

Precipitation

0" 1" 2" 2.8"
0.0"
0.00"
Jan
0.0"
0.00"
Feb
0.2"
0.20"
Mar
2.8"
2.79"
Apr
2.6"
2.60"
May
2.1"
2.10"
Jun
2.2"
2.24"
Jul
2.6"
2.65"
Aug
2.4"
2.40"
Sep
2.7"
2.73"
Oct
0.7"
0.72"
Nov
0.0"
0.00"
Dec

Sunrise / Sunset

4a7a10a1p4p7p10pNoonJanFebMarAprMayJunJulAugSepOctNovDec10h11h12h13h14h15h14h13h12h11h10h9h
Jan: 7:09 AM – 4:51 PM · 9h 43m
Feb: 6:41 AM – 5:19 PM · 10h 37m
Mar: 6:09 AM – 5:51 PM · 11h 43m
Apr: 5:31 AM – 6:29 PM · 12h 58m
May: 5:00 AM – 6:60 PM · 13h 60m
Jun: 4:44 AM – 7:16 PM · 14h 33m
Jul: 4:50 AM – 7:10 PM · 14h 19m
Aug: 5:17 AM – 6:43 PM · 13h 26m
Sep: 5:53 AM – 6:07 PM · 12h 13m
Oct: 6:29 AM – 5:31 PM · 11h 01m
Nov: 7:01 AM – 4:59 PM · 9h 58m
Dec: 7:16 AM – 4:44 PM · 9h 27m
Daylight Longest: 14h 34m · Shortest: 9h 26m

Nearby Stations

Waverly 1w, CO June 6 - September 15 Alamosa San Luis AP, CO June 7 - September 15 Alamosa 1e, CO May 30 - September 17 San Luis 1 S, CO May 31 - September 23 Blanca 4 Nw, CO May 25 - September 22 Monte Vista 2w, CO June 11 - September 13

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