Frost Dates for West Modesto, CA

Based on data from Modesto City Co AP weather station, 5 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. January 31
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 10
First Fall Frost November 29

Hard Freeze (28°F)

Last Spring Hard Freeze January 8
First Fall Hard Freeze December 21
37.62°N, -121.04°W © OpenStreetMap

Growing Season

309 Days January 31 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 9b

Avg. annual minimum: 25 to 30°F (−4 to −1°C)

Learn more

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

BSk Cold Semi-Arid (Steppe)

Cool to cold with low rainfall and wide temperature swings. Common in the western Great Plains and central Asia. Short growing seasons benefit from season extension techniques.

Köppen climate map

Temperature

30° 50° 70° 90°
47°
High: 56°F
Avg: 47°F
Low: 39°F
Jan
52°
High: 62°F
Avg: 52°F
Low: 42°F
Feb
57°
High: 68°F
Avg: 57°F
Low: 45°F
Mar
61°
High: 74°F
Avg: 61°F
Low: 48°F
Apr
68°
High: 82°F
Avg: 68°F
Low: 54°F
May
75°
High: 90°F
Avg: 75°F
Low: 59°F
Jun
79°
High: 95°F
Avg: 79°F
Low: 63°F
Jul
78°
High: 94°F
Avg: 78°F
Low: 62°F
Aug
74°
High: 89°F
Avg: 74°F
Low: 59°F
Sep
65°
High: 79°F
Avg: 65°F
Low: 52°F
Oct
54°
High: 66°F
Avg: 54°F
Low: 43°F
Nov
47°
High: 56°F
Avg: 47°F
Low: 39°F
Dec
32°F
Avg High Avg Temp Avg Low Light Frost (32°F)

Precipitation

0" 2" 4" 4.6"
4.6"
4.60"
Jan
4.0"
3.97"
Feb
3.8"
3.76"
Mar
3.4"
3.40"
Apr
1.4"
1.35"
May
0.0"
0.00"
Jun
0.0"
0.00"
Jul
0.0"
0.00"
Aug
0.0"
0.00"
Sep
0.6"
0.56"
Oct
3.1"
3.06"
Nov
4.6"
4.63"
Dec

Sunrise / Sunset

4a7a10a1p4p7p10pNoonJanFebMarAprMayJunJulAugSepOctNovDec9.5h10.5h11.5h13h14h14.5h14.5h13.5h12h11h10h9.5h
Jan: 7:10 AM – 4:50 PM · 9h 40m
Feb: 6:42 AM – 5:18 PM · 10h 36m
Mar: 6:09 AM – 5:51 PM · 11h 43m
Apr: 5:31 AM – 6:29 PM · 12h 59m
May: 4:59 AM – 7:01 PM · 14h 02m
Jun: 4:42 AM – 7:18 PM · 14h 35m
Jul: 4:49 AM – 7:11 PM · 14h 22m
Aug: 5:16 AM – 6:44 PM · 13h 27m
Sep: 5:53 AM – 6:07 PM · 12h 14m
Oct: 6:30 AM – 5:30 PM · 11h 00m
Nov: 7:02 AM – 4:58 PM · 9h 56m
Dec: 7:18 AM – 4:42 PM · 9h 25m
Daylight Longest: 14h 36m · Shortest: 9h 24m

Nearby Stations

Turlock #2, CA January 6 - December 20 Tracy Carbona, CA February 25 - November 26 Stockton Metro AP, CA February 6 - December 1 Newman, CA February 26 - November 29 Merced 23 Wsw, CA March 28 - November 14 Stockton Fire Stn 4, CA February 5 - December 8

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