Frost Dates for Muscoy, CA

Based on data from Lake Arrowhead weather station, 11 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. May 5
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. November 2
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 18
First Fall Frost October 25

Hard Freeze (28°F)

Last Spring Hard Freeze April 11
First Fall Hard Freeze November 16
34.15°N, -117.34°W © OpenStreetMap

Growing Season

181 Days May 5 to November 2

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 7b

Avg. annual minimum: 5 to 10°F (−15 to −12°C)

Learn more

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

Csb Warm-Summer Mediterranean

Warm, dry summers and mild, wet winters. Similar to hot-summer Mediterranean but cooler. Great for a wide range of vegetables and fruit trees with moderate water needs.

Köppen climate map

Temperature

20° 40° 60° 80°
37°
High: 44°F
Avg: 37°F
Low: 29°F
Jan
37°
High: 45°F
Avg: 37°F
Low: 30°F
Feb
42°
High: 52°F
Avg: 42°F
Low: 32°F
Mar
48°
High: 60°F
Avg: 48°F
Low: 36°F
Apr
54°
High: 67°F
Avg: 54°F
Low: 41°F
May
63°
High: 76°F
Avg: 63°F
Low: 49°F
Jun
69°
High: 81°F
Avg: 69°F
Low: 57°F
Jul
70°
High: 82°F
Avg: 70°F
Low: 57°F
Aug
63°
High: 74°F
Avg: 63°F
Low: 52°F
Sep
53°
High: 63°F
Avg: 53°F
Low: 43°F
Oct
43°
High: 52°F
Avg: 43°F
Low: 34°F
Nov
36°
High: 43°F
Avg: 36°F
Low: 29°F
Dec
32°F
28°F
Avg High Avg Temp Avg Low Light Frost (32°F) Hard Frost (28°F)

Precipitation

0" 8" 16" 24" 28.7"
28.7"
28.73"
Jan
26.4"
26.44"
Feb
18.5"
18.48"
Mar
13.8"
13.80"
Apr
0.0"
0.00"
May
0.0"
0.00"
Jun
0.0"
0.00"
Jul
0.0"
0.00"
Aug
0.0"
0.00"
Sep
0.0"
0.00"
Oct
1.3"
1.31"
Nov
18.3"
18.25"
Dec

Sunrise / Sunset

4a7a10a1p4p7p10pNoonJanFebMarAprMayJunJulAugSepOctNovDec10h11h11.5h13h14h14.5h14h13.5h12h11h10h9.5h
Jan: 7:01 AM – 4:59 PM · 9h 57m
Feb: 6:37 AM – 5:23 PM · 10h 46m
Mar: 6:08 AM – 5:52 PM · 11h 45m
Apr: 5:34 AM – 6:26 PM · 12h 52m
May: 5:06 AM – 6:54 PM · 13h 47m
Jun: 4:52 AM – 7:08 PM · 14h 16m
Jul: 4:58 AM – 7:02 PM · 14h 05m
Aug: 5:22 AM – 6:38 PM · 13h 17m
Sep: 5:54 AM – 6:06 PM · 12h 12m
Oct: 6:26 AM – 5:34 PM · 11h 07m
Nov: 6:55 AM – 5:05 PM · 10h 11m
Dec: 7:08 AM – 4:52 PM · 9h 43m
Daylight Longest: 14h 17m · Shortest: 9h 43m

Nearby Stations

Hesperia 2e, CA February 28 - December 1 Redlands, CA January 27 - December 19 Big Bear Lake, CA May 27 - October 4 Victorville, CA March 18 - November 11 Riverside Citrus Exp, CA January 10 - January 2 Riverside Fire Stn 3, CA January 9 - December 25

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