Frost Dates for Brookdale, CA
Based on data from Ben Lomond #4 weather station, 2 miles away
Elevation: 443 ft
Frost Dates
Last Spring Frost (50%) A 50% chance that the last spring frost has already passed by this date. Most gardeners use this as their primary planting guide.
March 25
First Fall Frost (50%) A 50% chance that the first fall frost has occurred by this date. Plan to harvest or protect tender plants before this date.
November 11
30% Probability
Only 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
April 4
First Fall Frost
November 1
Hard Freeze (28°F)
Last Spring Hard Freeze
February 6
First Fall Hard Freeze
December 4
Growing Season
231 Days
March 25 to November 11
USDA Hardiness Zone
Hardiness 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
Köppen Climate
The 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.
Temperature
30°
50°
70°
90°
Avg High
Avg Temp
Avg Low
Light Frost (32°F)
Temperature table
| Month | Avg High | Avg Temp | Avg Low |
|---|---|---|---|
| January | 65° | 51° | 37° |
| February | 67° | 53° | 39° |
| March | 71° | 56° | 41° |
| April | 75° | 58° | 42° |
| May | 80° | 63° | 46° |
| June | 86° | 67° | 49° |
| July | 88° | 70° | 51° |
| August | 90° | 70° | 51° |
| September | 89° | 69° | 49° |
| October | 83° | 64° | 44° |
| November | 71° | 55° | 40° |
| December | 64° | 50° | 37° |
Precipitation
0"
4"
8"
12"
13.5"
Precipitation table
| Month | Precipitation |
|---|---|
| January | 13.5 |
| February | 12.9 |
| March | 10.5 |
| April | 6.4 |
| May | 3.8 |
| June | 0.0 |
| July | 0.0 |
| August | 0.0 |
| September | 0.0 |
| October | 4.2 |
| November | 9.1 |
| December | 12.7 |
Sunrise / Sunset
Daylight
Pacific Time (PT)
Longest: 14h 33m · Shortest: 9h 27m
Sunrise and sunset table
| Month | Sunrise | Sunset | Daylight |
|---|---|---|---|
| January | 7:26 AM | 5:09 PM | 9h 43m |
| February | 7:04 AM | 5:42 PM | 10h 38m |
| March | 7:27 AM | 7:09 PM | 11h 43m |
| April | 6:40 AM | 7:37 PM | 12h 58m |
| May | 6:05 AM | 8:04 PM | 13h 59m |
| June | 5:52 AM | 8:25 PM | 14h 32m |
| July | 6:05 AM | 8:23 PM | 14h 19m |
| August | 6:30 AM | 7:55 PM | 13h 25m |
| September | 6:56 AM | 7:10 PM | 12h 13m |
| October | 7:23 AM | 6:24 PM | 11h 01m |
| November | 6:54 AM | 4:53 PM | 9h 58m |
| December | 7:20 AM | 4:48 PM | 9h 28m |
Nearby Stations
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