Frost Dates for Los Alamos, NM

Elevation: 2263 m

Frost Dates

Last Spring Frost (50%) A 50% chance that the last spring frost has already passed by this date. Most gardeners use this as their primary planting guide. May 2
First Fall Frost (50%) A 50% chance that the first fall frost has occurred by this date. Plan to harvest or protect tender plants before this date. October 12

30% Probability

Only 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 9
First Fall Frost October 6

Hard Freeze (28°F)

Last Spring Hard Freeze April 20
First Fall Hard Freeze October 23
35.86°N, 106.32°W © OpenStreetMap

Growing Season

163 Days May 2 to October 12

USDA Hardiness Zone

Hardiness 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 7a

Avg. annual minimum: 0 to 5°F

Learn more

Köppen Climate

The Köppen climate classification system categorizes climates based on temperature and precipitation patterns.
Dfb Warm-Summer Continental

Warm summers and cold, snowy winters. A shorter growing season than hot-summer continental. Hardy vegetables, root crops, and cool-season greens do well. Season extension is valuable.

Köppen climate map

Temperature

Avg High Avg Temp Avg Low Light Frost (32°F) Hard Frost (28°F)
Temperature table
Average monthly temperatures (°F)
Month Avg High Avg Temp Avg Low
January40°30°21°
February45°34°24°
March53°42°30°
April61°48°35°
May70°57°44°
June81°67°54°
July83°70°57°
August80°67°55°
September74°62°49°
October63°51°38°
November50°39°28°
December40°31°21°

Precipitation

Precipitation table
Average monthly precipitation (inches)
MonthPrecipitation
January2.4
February2.3
March2.8
April2.2
May2.8
June2.5
July3.1
August3.6
September3.5
October3.8
November3.2
December2.8

Sunrise / Sunset

Daylight Mountain Time (MT) Longest: 14h 26m · Shortest: 9h 34m
Sunrise and sunset table
Sunrise, sunset, and daylight on the 15th of each month (Mountain Time (MT))
Month Sunrise Sunset Daylight
January7:20 AM5:09 PM9h 49m
February6:59 AM5:41 PM10h 41m
March7:23 AM7:07 PM11h 44m
April6:38 AM7:33 PM12h 55m
May6:05 AM7:58 PM13h 54m
June5:53 AM8:18 PM14h 25m
July6:05 AM8:17 PM14h 12m
August6:29 AM7:50 PM13h 22m
September6:53 AM7:06 PM12h 13m
October7:19 AM6:22 PM11h 04m
November6:49 AM4:52 PM10h 04m
December7:14 AM4:48 PM9h 35m

Nearby Stations

Los Alamos 13 W, NM June 10 - September 13 Cochiti Dam, NM April 26 - October 21 Espanola, NMMay 11 - October 6 Jemez Springs, NM May 9 - October 11 Santa Fe Co Muni AP, NM May 4 - October 15 Alcalde, NMMay 10 - October 4

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