Frost Dates for Clay, CA

Based on data from Lodi weather station, 17 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. February 9
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 5
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 February 22
First Fall Frost November 29

Hard Freeze (28°F)

Last Spring Hard Freeze January 12
First Fall Hard Freeze December 20
38.34°N, -121.16°W © OpenStreetMap

Growing Season

300 Days February 9 to December 5

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 9a

Avg. annual minimum: 20 to 25°F (−7 to −4°C)

Learn more

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

Csa Hot-Summer Mediterranean

Hot, dry summers and mild, wet winters. Classic Mediterranean climate ideal for grapes, olives, tomatoes, and herbs. Summer irrigation is usually necessary.

Köppen climate map

Temperature

30° 50° 70° 90°
48°
High: 57°F
Avg: 48°F
Low: 40°F
Jan
52°
High: 63°F
Avg: 52°F
Low: 42°F
Feb
57°
High: 69°F
Avg: 57°F
Low: 45°F
Mar
61°
High: 74°F
Avg: 61°F
Low: 47°F
Apr
67°
High: 81°F
Avg: 67°F
Low: 52°F
May
73°
High: 88°F
Avg: 73°F
Low: 57°F
Jun
76°
High: 92°F
Avg: 76°F
Low: 59°F
Jul
75°
High: 92°F
Avg: 75°F
Low: 58°F
Aug
72°
High: 89°F
Avg: 72°F
Low: 56°F
Sep
65°
High: 79°F
Avg: 65°F
Low: 50°F
Oct
54°
High: 65°F
Avg: 54°F
Low: 43°F
Nov
48°
High: 57°F
Avg: 48°F
Low: 39°F
Dec
32°F
Avg High Avg Temp Avg Low Light Frost (32°F)

Precipitation

0" 2" 4" 5.5"
4.9"
4.93"
Jan
4.9"
4.94"
Feb
5.3"
5.27"
Mar
4.7"
4.72"
Apr
2.3"
2.33"
May
0.0"
0.00"
Jun
0.0"
0.00"
Jul
0.0"
0.00"
Aug
0.0"
0.00"
Sep
2.2"
2.19"
Oct
4.6"
4.56"
Nov
5.5"
5.48"
Dec

Sunrise / Sunset

4a7a10a1p4p7p10pNoonJanFebMarAprMayJunJulAugSepOctNovDec9.5h10.5h11.5h13h14h14.5h14.5h13.5h12h11h10h9.5h
Jan: 7:11 AM – 4:49 PM · 9h 38m
Feb: 6:43 AM – 5:17 PM · 10h 35m
Mar: 6:09 AM – 5:51 PM · 11h 42m
Apr: 5:30 AM – 6:30 PM · 12h 60m
May: 4:58 AM – 7:02 PM · 14h 04m
Jun: 4:41 AM – 7:19 PM · 14h 38m
Jul: 4:48 AM – 7:12 PM · 14h 24m
Aug: 5:16 AM – 6:44 PM · 13h 29m
Sep: 5:53 AM – 6:07 PM · 12h 14m
Oct: 6:30 AM – 5:30 PM · 10h 59m
Nov: 7:03 AM – 4:57 PM · 9h 54m
Dec: 7:19 AM – 4:41 PM · 9h 22m
Daylight Longest: 14h 39m · Shortest: 9h 21m

Nearby Stations

Stockton Fire Stn 4, CA February 5 - December 8 Stockton Metro AP, CA February 6 - December 1 Camp Pardee, CA January 22 - December 17 Antioch Pumping Plt #3, CA January 12 - December 19 Tracy Pumping Plt, CA January 19 - December 10 Tracy Carbona, CA February 25 - November 26

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