Photo: Biochemistry2016 · CC BY-SA 4.0West Carson’s winters are milder and less snowy than most of the U.S.
A typical July afternoon reaches 78°, a January night drops to 48°, and snow is almost unheard of.
A year in West Carson at a glance
Each month’s typical high and low, and what it brings.
What stands out about West Carson’s climate
Compared with towns across the U.S., with West Carson’s place in California beside it.
What a year in West Carson feels like
Typical highs and lows by season and by month, from NOAA’s 30-year normals.
Frost is rare
Frost and day counts come from NOAA’s station at Torrance Airport, 3 miles from the town’s center, at about the same height.
The 2023 USDA map puts West Carson’s center in zone 10b: the coldest night of a typical winter, averaged over 1991–2020, reaches about 36°. Plant labels use the zone; frost dates tell you when to plant.
90° days by month
Average days at 90° or more
About 12 inches of rain a year
February is the wettest month and July the driest. Rain falls on about 28 days a year. Snow is rare: about 0.0" in a normal year at Palos Verdes Es Fc43d, CA, so most winters see none.
Rain + melted snow by month
Inches of water
Heating and cooling a home in West Carson
68% of the work is heating. No month averages under 55°.
Degree days add up how far each day’s average falls below (heating) or rises above (cooling) 65° over a year. NOAA normals at Torrance Airport.
Living with West Carson’s climate
What the numbers mean for a garden, a free afternoon and a bad-weather day.
Zone 10b. Frost comes about 1 winter in 9, so tender plants can often stay out through winter.
Months with highs of 62–84° and lows of 40° or more: January, February, March, April, May, June, July, August, September, October, November and December. 0.7 miles of trails are waiting.
Parks & trails →Of the yearly building losses FEMA expects in West Carson from natural hazards, earthquakes are the largest share (52%). Normals are averages; the hazards page covers the extremes.
Natural hazards →West Carson and its neighbors
Carson the hottest July afternoons (80°, 2° warmer). Differences under a degree are within what the 5 km grid can tell apart. Tap a town to see its climate.
Climates most like West Carson’s, 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 |
|---|---|---|---|---|
| West Carson, CA | 48° | 78° | 12" | 0.0" |
| Makawao, HI | 53° | 75° | 23" | 0.0" |
| Sequim, WA | 34° | 71° | 18" | 1.4" |
| Winston, OR | 37° | 86° | 33" | 0.0" |
| Alpine, TX | 30° | 90° | 15" | 2.2" |
Temperatures and rain come from NOAA’s 5 km grid, so each town gets its own value. Snow and frost-free days come from the nearest weather station, so neighbors often share them.
Warmer than it used to be
The last 30 years in West Carson averaged 2.2° warmer than the 1900s. The biggest change is in January (+3.1°).
A bigger shift than in 95% 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 West Carson compares
Against 12,954 U.S. towns of 2,500 or more (one per 5 km climate cell), with West Carson’s place among California’s.
West Carson weather by month
Highs, lows and precipitation from NOAA’s grid at West Carson’s center; snow, wet days and snow on the ground from Palos Verdes Es Fc43d, CA. 1991–2020 normals.
| Month | High | Low | Rain + melt | Snow | Wet days | Snow on ground | 30-yr range |
|---|---|---|---|---|---|---|---|
| January | 67° | 48° | 2.9" | 0.0" | 6 | 0 | 55° – 63° |
| February | 67° | 49° | 3.3" | 0.0" | 5 | 0 | 53° – 63° |
| March | 68° | 51° | 1.9" | 0.0" | 4 | 0 | 54° – 66° |
| April | 71° | 53° | 0.6" | 0.0" | 2 | 0 | 58° – 66° |
| May | 71° | 56° | 0.2" | 0.0" | 1 | 0 | 61° – 69° |
| June | 74° | 59° | 0.0" | 0.0" | 0 | 0 | 64° – 70° |
| July | 78° | 63° | 0.0" | 0.0" | 1 | 0 | 67° – 75° |
| August | 80° | 63° | 0.0" | 0.0" | 0 | 0 | 69° – 75° |
| September | 79° | 62° | 0.1" | 0.0" | 0 | 0 | 67° – 76° |
| October | 76° | 58° | 0.5" | 0.0" | 1 | 0 | 63° – 74° |
| November | 72° | 52° | 0.8" | 0.0" | 3 | 0 | 56° – 65° |
| December | 67° | 48° | 2.0" | 0.0" | 4 | 0 | 55° – 61° |
| Year | 72° | 55° | 12.2" | 0.0" | 28 | 0 |
How much a month can swing
A normal is an average. March swings the most: from 1991 to 2020 its average ranged from 54° to 66°. December is the most reliable, staying within 6°.
Where West Carson’s 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 West Carson’s center.
- Snow: Palos Verdes Es Fc43d, CA.
- Frost, freezing nights, 90° and 100° days, heating and cooling: Torrance Airport, 3 miles from the town’s center, at about the same height; 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 West Carson’s climate
What is the weather like in West Carson?
A typical July afternoon reaches 78°, a January night drops to 48°, and snow is almost unheard of. Milder January nights than 96% of U.S. towns; cooler July afternoons than 96% of U.S. towns.
How cold does it get in West Carson in winter?
December nights average 48°. A night at 32° or below comes in only some winters (0.6 a year on average). In the coldest December of the last 30 years the month averaged 55°.
How much snow does West Carson get?
About 0.0 inches in a normal winter at Palos Verdes Es Fc43d, CA, so most winters see none.
How hot does it get in West Carson?
July, with a typical high of 78° and a low of 63°. About 6 days a year reach 90° (Torrance Airport).
When is the first and last frost in West Carson?
Most years have no frost at all: a 32° night comes in about 11% of winters at Torrance Airport, usually in December or January.
What growing zone is West Carson in?
Zone 10b on the 2023 USDA Plant Hardiness Zone Map: the coldest night of a typical winter reaches about 36°.
What is the best time of year to visit West Carson?
By one simple rule (highs of 62–84° and lows of 40° or more), January, February, March, April, May, June, July, August, September, October, November and December. The rule is ours, not NOAA’s; the month table has the numbers to judge by.
Is West Carson getting warmer?
Yes: 1991–2020 averaged 2.2° warmer than 1901–2000 on NOAA’s grid. A bigger shift than 95% of U.S. towns.
Neighbors talk weather
Gardens, snow, and the best days of the year in West Carson.
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.