Santa Margarita Ranchhouse · Photo: SeasideOside · CC BY-SA 4.0Camp Pendleton Mainside’s winters are milder and less snowy than most of the U.S.
A typical July afternoon reaches 82°, a January night drops to 47°, and snow is almost unheard of.
A year in Camp Pendleton Mainside at a glance
Each month’s typical high and low, and what it brings.
What stands out about Camp Pendleton Mainside’s climate
Compared with towns across the U.S., with Camp Pendleton Mainside’s place in California beside it.
What a year in Camp Pendleton Mainside 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 Vista, CA, 7 miles from the town’s center, 210 ft higher.
The 2023 USDA map puts Camp Pendleton Mainside’s center in zone 10a: the coldest night of a typical winter, averaged over 1991–2020, reaches about 32°. 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 12 inches of rain a year
February is the wettest month and August the driest. Rain falls on about 41 days a year. Snow is rare: about 0.0" in a normal year at Escondido #2, CA, so most winters see none.
Rain + melted snow by month
Inches of water
Heating and cooling a home in Camp Pendleton Mainside
67% 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 Vista, CA.
Living with Camp Pendleton Mainside’s climate
What the numbers mean for a garden, a free afternoon and a bad-weather day.
Zone 10a. Frost comes about 1 winter in 3, 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.
Parks & trails →Of the yearly building losses FEMA expects in Camp Pendleton Mainside from natural hazards, wildfire is the largest share (54%); heat waves, cold waves, winter storms and ice storms together are 1%. Normals are averages; the hazards page covers the extremes.
Natural hazards →Camp Pendleton Mainside and similar climates
TownRatings has no climate map of the towns around Camp Pendleton Mainside yet.
Climates most like Camp Pendleton Mainside’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 |
|---|---|---|---|---|
| Camp Pendleton Mainside, CA | 47° | 82° | 12" | 0.0" |
| Makawao, HI | 53° | 75° | 23" | 0.0" |
| The Dalles, OR | 31° | 88° | 15" | 5.5" |
| Sierra Vista Southeast, AZ | 32° | 91° | 15" | 0.7" |
| Alpine, TX | 30° | 90° | 15" | 2.2" |
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 Camp Pendleton Mainside averaged 1.8° warmer than the 1900s. The biggest change is in January (+2.8°).
A bigger shift than in 79% 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 Camp Pendleton Mainside compares
Against 12,954 U.S. towns of 2,500 or more (one per 5 km climate cell), with Camp Pendleton Mainside’s place among California’s.
Camp Pendleton Mainside weather by month
Highs, lows and precipitation from NOAA’s grid at Camp Pendleton Mainside’s center; snow, wet days and snow on the ground from Escondido #2, CA. 1991–2020 normals.
| Month | High | Low | Rain + melt | Snow | Wet days | Snow on ground | 30-yr range |
|---|---|---|---|---|---|---|---|
| January | 68° | 47° | 2.6" | 0.0" | 6 | 0 | 54° – 62° |
| February | 67° | 47° | 2.9" | 0.0" | 7 | 0 | 52° – 64° |
| March | 69° | 49° | 1.7" | 0.0" | 6 | 0 | 54° – 65° |
| April | 71° | 51° | 0.8" | 0.0" | 4 | 0 | 57° – 65° |
| May | 73° | 55° | 0.3" | 0.0" | 3 | 0 | 60° – 69° |
| June | 77° | 58° | 0.1" | 0.0" | 1 | 0 | 65° – 71° |
| July | 82° | 62° | 0.1" | 0.0" | 1 | 0 | 69° – 78° |
| August | 84° | 63° | 0.0" | 0.0" | 0 | 0 | 71° – 76° |
| September | 83° | 61° | 0.1" | 0.0" | 1 | 0 | 69° – 76° |
| October | 78° | 56° | 0.5" | 0.0" | 2 | 0 | 63° – 73° |
| November | 73° | 50° | 0.9" | 0.0" | 4 | 0 | 56° – 65° |
| December | 67° | 46° | 1.8" | 0.0" | 6 | 0 | 54° – 61° |
| Year | 74° | 54° | 11.7" | 0.0" | 41 | 0 |
How much a month can swing
A normal is an average. February swings the most: from 1991 to 2020 its average ranged from 52° to 64°. August is the most reliable, staying within 6°.
Where Camp Pendleton Mainside’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 Camp Pendleton Mainside’s center.
- Snow: Escondido #2, CA.
- Frost, freezing nights, 90° and 100° days, heating and cooling: Vista, CA, 7 miles from the town’s center, 210 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 Camp Pendleton Mainside’s climate
What is the weather like in Camp Pendleton Mainside?
A typical July afternoon reaches 82°, a January night drops to 47°, and snow is almost unheard of. Milder January nights than 95% of U.S. towns; cooler July afternoons than 84% of U.S. towns.
How cold does it get in Camp Pendleton Mainside in winter?
December nights average 46°. About 1 nights a year reach 32° or below. In the coldest December of the last 30 years the month averaged 54°.
How much snow does Camp Pendleton Mainside get?
About 0.0 inches in a normal winter at Escondido #2, CA, so most winters see none.
How hot does it get in Camp Pendleton Mainside?
July, with a typical high of 82° and a low of 62°. About 19 days a year reach 90° and 1 reach 100° (Vista, CA).
When is the first and last frost in Camp Pendleton Mainside?
Most years have no frost at all: a 32° night comes in about 35% of winters at Vista, CA, usually in December or January.
What growing zone is Camp Pendleton Mainside in?
Zone 10a on the 2023 USDA Plant Hardiness Zone Map: the coldest night of a typical winter reaches about 32°.
What is the best time of year to visit Camp Pendleton Mainside?
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 Camp Pendleton Mainside getting warmer?
Yes: 1991–2020 averaged 1.8° warmer than 1901–2000 on NOAA’s grid. A bigger shift than 79% of U.S. towns.
Neighbors talk weather
Gardens, snow, and the best days of the year in Camp Pendleton Mainside.
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.