Frost Dates for Redwood Shores, CA

Based on data from Redwood City 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. January 17
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 12
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 31
First Fall Frost December 4

Hard Freeze (28°F)

Last Spring Hard Freeze December 31
First Fall Hard Freeze December 26
37.53°N, -122.25°W © OpenStreetMap

Growing Season

330 Days January 17 to December 12

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

40° 60° 80°
50°
High: 59°F
Avg: 50°F
Low: 41°F
Jan
52°
High: 62°F
Avg: 52°F
Low: 43°F
Feb
55°
High: 65°F
Avg: 55°F
Low: 45°F
Mar
58°
High: 69°F
Avg: 58°F
Low: 47°F
Apr
62°
High: 73°F
Avg: 62°F
Low: 50°F
May
66°
High: 79°F
Avg: 66°F
Low: 54°F
Jun
69°
High: 81°F
Avg: 69°F
Low: 57°F
Jul
69°
High: 81°F
Avg: 69°F
Low: 57°F
Aug
67°
High: 79°F
Avg: 67°F
Low: 54°F
Sep
62°
High: 75°F
Avg: 62°F
Low: 50°F
Oct
54°
High: 65°F
Avg: 54°F
Low: 44°F
Nov
49°
High: 59°F
Avg: 49°F
Low: 40°F
Dec
Avg High Avg Temp Avg Low

Precipitation

0" 2" 4" 6" 6.7"
6.7"
6.71"
Jan
6.5"
6.52"
Feb
5.9"
5.91"
Mar
3.9"
3.90"
Apr
0.8"
0.80"
May
0.0"
0.00"
Jun
0.0"
0.00"
Jul
0.0"
0.00"
Aug
0.0"
0.00"
Sep
1.2"
1.16"
Oct
4.8"
4.83"
Nov
6.5"
6.52"
Dec

Sunrise / Sunset

4a7a10a1p4p7p10pNoonJanFebMarAprMayJunJulAugSepOctNovDec9.5h10.5h11.5h13h14h14.5h14.5h13.5h12h11h10h9.5h
Jan: 7:09 AM – 4:51 PM · 9h 41m
Feb: 6:42 AM – 5:18 PM · 10h 37m
Mar: 6:09 AM – 5:51 PM · 11h 43m
Apr: 5:31 AM – 6:29 PM · 12h 58m
May: 4:60 AM – 7:00 PM · 14h 01m
Jun: 4:43 AM – 7:17 PM · 14h 34m
Jul: 4:50 AM – 7:10 PM · 14h 21m
Aug: 5:17 AM – 6:43 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: 7:17 AM – 4:43 PM · 9h 25m
Daylight Longest: 14h 35m · Shortest: 9h 25m

Nearby Stations

Woodside Fire Stn 1, CA February 25 - November 25 Palo Alto, CA February 1 - December 7 Half Moon Bay, CA February 6 - December 17 Moffett Federal Airfield, CA January 6 - December 23 Newark, CAJanuary 1 - December 27 Skyline Ridge Preserve, CA March 21 - December 15

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