Canon School · Photo: Yolorose · CC BY-SA 3.0Brooks reaches 100° on about 22 days a year, more than 96% of U.S. towns
Deep winter brings January lows near 37°. The gap between a January night and a July afternoon is 59°. By precipitation alone, it ranks drier than 89% of U.S. towns. For walks and days out, the stretch from February to May and October to November brings highs of 62–82°.
A year in Brooks at a glance
Each month’s typical high and low, and what it brings.
What stands out about Brooks’ climate
Compared with towns across the U.S., with Brooks’ place in California beside it.
What a year in Brooks feels like
Typical highs and lows by season and by month, from NOAA’s 30-year normals.
About 266 frost-free days a year
In half of years the last 32° night comes by March 6 and the first by November 30. Frost and day counts come from NOAA’s station at Markley Cove, CA, 17 miles from the town’s center, 120 ft higher.
The 2023 USDA map puts Brooks’ center in zone 9a: the coldest night of a typical winter, averaged over 1991–2020, reaches about 25°. Plant labels use the zone; frost dates tell you when to plant.
Freezing nights by month
Average nights at or below 32°
90° days by month
Average days at 90° or more
About 22 inches of rain a year
December is the wettest month and July the driest. Rain falls on about 74 days a year. Snow is rare: about 0.0" in a normal year at Winters, CA, so most winters see none.
Rain + melted snow by month
Inches of water
Heating and cooling a home in Brooks
70% of the work is heating. Months averaging under 55° run from November through March.
Degree days add up how far each day’s average falls below (heating) or rises above (cooling) 65° over a year. NOAA normals at Markley Cove, CA.
Living with Brooks’ climate
What the numbers mean for a garden, a free afternoon and a bad-weather day.
266 frost-free days in zone 9a. The last frost comes by Mar 6 in half of years, so many gardeners wait a week or two past that to set out tomatoes. The first fall frost comes by Nov 30.
Months with highs of 62–84° and lows of 40° or more: February, March, April, May, October and November. 7.5 miles of trails are waiting.
Parks & trails →Of the yearly building losses FEMA expects in Brooks from natural hazards, drought is the largest share (42%); heat waves, cold waves, winter storms and ice storms together are 1%. Normals are averages; the hazards page covers the extremes.
Natural hazards →Brooks and similar climates
TownRatings has no climate map of the towns around Brooks yet.
Climates most like Brooks’, farther away
TownRatings’ own comparison of NOAA 1991–2020 normals, not a NOAA product: places of 5,000+ at least 150 miles away, one per state, closest on January low, July high, precipitation and snow.
| Town | Jan. low | July high | Precip. | Snow |
|---|---|---|---|---|
| Brooks, CA | 37° | 96° | 22" | 0.0" |
| Pearsall, TX | 41° | 97° | 24" | 0.0" |
| Corona de Tucson, AZ | 36° | 96° | 14" | 0.1" |
| Central Point, OR | 32° | 93° | 22" | 3.4" |
| Chaparral, NM | 31° | 95° | 9" | 0.0" |
Temperatures and precipitation come from NOAA’s 5 km grid; snow and day counts from the stations named on this page.
Warmer than it used to be
The last 30 years in Brooks averaged 1.5° warmer than the 1900s. The biggest change is in January (+2.2°).
A bigger shift than in 62% of U.S. towns.
Change by month
The two periods overlap (1991–2000 is in both), which makes the gap a little smaller than it would be between separate periods.
How Brooks compares
Against 12,954 U.S. towns of 2,500 or more (one per 5 km climate cell), with Brooks’ place among California’s.
Brooks weather by month
Highs, lows and precipitation from NOAA’s grid at Brooks’ center; snow, wet days and snow on the ground from Winters, CA. 1991–2020 normals.
| Month | High | Low | Rain + melt | Snow | Wet days | Snow on ground | 30-yr range |
|---|---|---|---|---|---|---|---|
| January | 58° | 37° | 4.4" | 0.0" | 15 | 0 | 44° – 54° |
| February | 62° | 40° | 4.3" | 0.0" | 12 | 0 | 46° – 56° |
| March | 67° | 42° | 3.2" | 0.0" | 10 | 0 | 48° – 61° |
| April | 73° | 45° | 1.4" | 0.0" | 6 | 0 | 53° – 64° |
| May | 82° | 51° | 0.8" | 0.0" | 4 | 0 | 58° – 74° |
| June | 90° | 57° | 0.2" | 0.0" | 1 | 0 | 68° – 77° |
| July | 96° | 59° | 0.0" | 0.0" | 0 | 0 | 74° – 81° |
| August | 95° | 58° | 0.0" | 0.0" | 0 | 0 | 73° – 80° |
| September | 90° | 55° | 0.1" | 0.0" | 1 | 0 | 69° – 76° |
| October | 80° | 49° | 0.9" | 0.0" | 3 | 0 | 61° – 70° |
| November | 66° | 41° | 2.1" | 0.0" | 8 | 0 | 47° – 59° |
| December | 58° | 37° | 4.4" | 0.0" | 13 | 0 | 43° – 51° |
| Year | 76° | 48° | 21.7" | 0.0" | 74 | 0 |
How much a month can swing
A normal is an average. May swings the most: from 1991 to 2020 its average ranged from 58° to 74°. September is the most reliable, staying within 7°.
Where Brooks’ numbers come from
Normals are 30-year averages, not a forecast. How TownRatings reads climate data →
- Temperatures and precipitation: NOAA’s gridded 1991–2020 normals for the 5 km cell at Brooks’ center.
- Snow: Winters, CA.
- Frost, freezing nights, 90° and 100° days, heating and cooling: Markley Cove, CA, 17 miles from the town’s center, 120 ft higher; the nearest station that passes our checks for distance, height and agreement with the grid.
- Growing zone: USDA Plant Hardiness Zone Map, 2023. USDA Agricultural Research Service and PRISM Group, Oregon State University, prism.oregonstate.edu/phzm, accessed 8 Oct 2026.
- Then and now: NOAA’s gridded normals for 1901–2000 at the same cell.
- Storms and extremes: FEMA National Risk Index (expected annual losses to buildings).
Common questions about Brooks’ climate
What is the weather like in Brooks?
A typical July afternoon reaches 96°, a January night drops to 37°, and snow is almost unheard of. Milder January nights than 84% of U.S. towns; hotter July afternoons than 96% of U.S. towns.
How cold does it get in Brooks in winter?
January nights average 37°. About 24 nights a year reach 32° or below. In the coldest January of the last 30 years the month averaged 44°.
How much snow does Brooks get?
About 0.0 inches in a normal winter at Winters, CA, so most winters see none.
How hot does it get in Brooks?
July, with a typical high of 96° and a low of 59°. About 91 days a year reach 90° and 22 reach 100° (Markley Cove, CA).
When is the first and last frost in Brooks?
In half of years the last spring frost (32°) comes by March 6 and the first fall frost by November 30, about 266 frost-free days, at Markley Cove, CA.
What growing zone is Brooks in?
Zone 9a on the 2023 USDA Plant Hardiness Zone Map: the coldest night of a typical winter reaches about 25°.
What is the best time of year to visit Brooks?
By one simple rule (highs of 62–84° and lows of 40° or more), February, March, April, May, October and November. The rule is ours, not NOAA’s; the month table has the numbers to judge by.
Is Brooks getting warmer?
Yes: 1991–2020 averaged 1.5° warmer than 1901–2000 on NOAA’s grid. A bigger shift than 62% of U.S. towns.
Neighbors talk weather
Gardens, snow, and the best days of the year in Brooks.
Source: NOAA NCEI U.S. Climate Normals, 1991–2020 and 1901–2000; USDA/PRISM 2023 hardiness zones; FEMA National Risk Index. Today’s forecast: National Weather Service.