Frost Dates for Saratoga, CA

Based on data from Los Gatos weather station, 4 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 2
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 6
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 17
First Fall Frost November 28

Hard Freeze (28°F)

Last Spring Hard Freeze January 1
First Fall Hard Freeze December 19
37.26°N, -122.02°W © OpenStreetMap

Growing Season

308 Days February 2 to December 6

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.

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

30° 50° 70° 90°
49°
High: 59°F
Avg: 49°F
Low: 40°F
Jan
52°
High: 62°F
Avg: 52°F
Low: 41°F
Feb
55°
High: 66°F
Avg: 55°F
Low: 43°F
Mar
58°
High: 70°F
Avg: 58°F
Low: 45°F
Apr
63°
High: 76°F
Avg: 63°F
Low: 49°F
May
67°
High: 82°F
Avg: 67°F
Low: 53°F
Jun
70°
High: 85°F
Avg: 70°F
Low: 56°F
Jul
70°
High: 85°F
Avg: 70°F
Low: 56°F
Aug
68°
High: 83°F
Avg: 68°F
Low: 54°F
Sep
62°
High: 76°F
Avg: 62°F
Low: 49°F
Oct
54°
High: 65°F
Avg: 54°F
Low: 43°F
Nov
49°
High: 58°F
Avg: 49°F
Low: 40°F
Dec
32°F
Avg High Avg Temp Avg Low Light Frost (32°F)

Precipitation

0" 2" 4" 6" 7.6"
7.3"
7.28"
Jan
6.6"
6.61"
Feb
6.4"
6.36"
Mar
4.5"
4.55"
Apr
0.9"
0.86"
May
0.0"
0.00"
Jun
0.0"
0.00"
Jul
0.0"
0.00"
Aug
0.0"
0.00"
Sep
1.3"
1.30"
Oct
5.0"
5.05"
Nov
7.6"
7.61"
Dec

Sunrise / Sunset

4a7a10a1p4p7p10pNoonJanFebMarAprMayJunJulAugSepOctNovDec9.5h10.5h11.5h13h14h14.5h14.5h13.5h12h11h10h9.5h
Jan: 7:09 AM – 4:51 PM · 9h 42m
Feb: 6:41 AM – 5:19 PM · 10h 37m
Mar: 6:09 AM – 5:51 PM · 11h 43m
Apr: 5:31 AM – 6:29 PM · 12h 58m
May: 5:00 AM – 6:60 PM · 13h 60m
Jun: 4:44 AM – 7:16 PM · 14h 33m
Jul: 4:50 AM – 7:10 PM · 14h 19m
Aug: 5:17 AM – 6:43 PM · 13h 26m
Sep: 5:53 AM – 6:07 PM · 12h 13m
Oct: 6:30 AM – 5:30 PM · 11h 01m
Nov: 7:01 AM – 4:59 PM · 9h 58m
Dec: 7:17 AM – 4:43 PM · 9h 27m
Daylight Longest: 14h 34m · Shortest: 9h 26m

Nearby Stations

San Jose, CA January 2 - December 25 San Jose, CA January 12 - December 22 Ben Lomond #4, CA March 25 - November 11 Moffett Federal Airfield, CA January 6 - December 23 Skyline Ridge Preserve, CA March 21 - December 15 Santa Cruz, CA January 29 - December 13

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