Frost Dates for Lemon Grove, CA

Based on data from El Cajon weather station, 7 miles away

Elevation: 446 ft

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. January 6
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. December 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 January 21
First Fall Frost December 12

Hard Freeze (28°F)

Last Spring Hard Freeze December 31
First Fall Hard Freeze December 30
32.74°N, -117.03°W © OpenStreetMap

Growing Season

350 Days January 6 to December 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 10a

Avg. annual minimum: 30 to 35°F (−1 to 2°C)

Learn more

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

BSh Hot Semi-Arid (Steppe)

Hot with low but not negligible rainfall. Less extreme than true desert. Dryland farming techniques and drought-tolerant varieties work well. Mulching and water conservation are key.

Köppen climate map

Temperature

40° 60° 80°
56°
High: 69°F
Avg: 56°F
Low: 43°F
Jan
57°
High: 69°F
Avg: 57°F
Low: 44°F
Feb
60°
High: 71°F
Avg: 60°F
Low: 48°F
Mar
63°
High: 75°F
Avg: 63°F
Low: 51°F
Apr
66°
High: 76°F
Avg: 66°F
Low: 56°F
May
70°
High: 81°F
Avg: 70°F
Low: 59°F
Jun
75°
High: 86°F
Avg: 75°F
Low: 63°F
Jul
77°
High: 89°F
Avg: 77°F
Low: 65°F
Aug
75°
High: 87°F
Avg: 75°F
Low: 62°F
Sep
68°
High: 81°F
Avg: 68°F
Low: 56°F
Oct
61°
High: 75°F
Avg: 61°F
Low: 47°F
Nov
55°
High: 69°F
Avg: 55°F
Low: 42°F
Dec
Avg High Avg Temp Avg Low

Precipitation

0" 2" 4" 6" 7.3"
7.3"
7.34"
Jan
5.2"
5.18"
Feb
5.2"
5.15"
Mar
2.7"
2.69"
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
3.0"
3.02"
Nov
6.6"
6.59"
Dec

Sunrise / Sunset

4a7a10a1p4p7p10pNoonJanFebMarAprMayJunJulAugSepOctNovDec10h11h12h13h13.5h14h14h13h12h11h10.5h10h
Jan: 6:55 AM – 4:59 PM · 10h 04m
Feb: 6:37 AM – 5:27 PM · 10h 50m
Mar: 7:05 AM – 6:50 PM · 11h 45m
Apr: 6:23 AM – 7:12 PM · 12h 49m
May: 5:53 AM – 7:35 PM · 13h 41m
Jun: 5:43 AM – 7:52 PM · 14h 09m
Jul: 5:54 AM – 7:52 PM · 13h 58m
Aug: 6:16 AM – 7:28 PM · 13h 13m
Sep: 6:36 AM – 6:48 PM · 12h 11m
Oct: 6:58 AM – 6:08 PM · 11h 10m
Nov: 6:25 AM – 4:41 PM · 10h 17m
Dec: 6:48 AM – 4:39 PM · 9h 51m
Daylight Pacific Time (PT) Longest: 14h 10m · Shortest: 9h 50m

Nearby Stations

El Capitan Dam, CA March 19 - December 8 Alpine, CA February 12 - December 24 San Diego Montgomery Fld, CA San Diego Miramar Nas, CA Chula Vista, CA Ramona Fire Dept, CA March 4 - December 4

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