Photo: David Jordan at English Wikipedia · CC BY-SA 3.0Less rain and snow falls on Tres Pinos than on 93% of U.S. towns: 14 inches a year
The depth of winter brings overnight lows near 38°. Temperatures cover 50° across the year, low to high. Its January nights stay gentler than in 85% of U.S. towns. Keep the boiler serviced for the months from December to January, which average under 50°.
A year in Tres Pinos at a glance
Each month’s typical high and low, and what it brings.
What stands out about Tres Pinos’ climate
Compared with towns across the U.S., with Tres Pinos’ place in California beside it.
What a year in Tres Pinos feels like
Typical highs and lows by season and by month, from NOAA’s 30-year normals.
About 201 frost-free days a year
In half of years the last 32° night comes by April 14 and the first by November 2. Frost and day counts come from NOAA’s station at Paicines 4 W, CA, 6 miles from the town’s center, 280 ft higher.
The 2023 USDA map puts Tres Pinos’ center in zone 9a: the coldest night of a typical winter, averaged over 1991–2020, reaches about 24°. 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 14 inches of rain a year
January is the wettest month and July the driest. Rain falls on about 48 days a year. Snow is rare: about 0.1" in a normal year at Hollister 2, CA, so most winters see none.
Rain + melted snow by month
Inches of water
Heating and cooling a home in Tres Pinos
91% of the work is heating, so the furnace matters far more than the air conditioner. 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 Paicines 4 W, CA.
Living with Tres Pinos’ climate
What the numbers mean for a garden, a free afternoon and a bad-weather day.
201 frost-free days in zone 9a. The last frost comes by Apr 14 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 2.
Months with highs of 62–84° and lows of 40° or more: March, April, May, June, October and November. 3.0 miles of trails are waiting.
Parks & trails →Of the yearly building losses FEMA expects in Tres Pinos from natural hazards, wildfire is the largest share (30%); heat waves, cold waves, winter storms and ice storms together are 1%. Normals are averages; the hazards page covers the extremes.
Natural hazards →Tres Pinos and similar climates
TownRatings has no climate map of the towns around Tres Pinos yet.
Climates most like Tres Pinos’, 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 |
|---|---|---|---|---|
| Tres Pinos, CA | 38° | 85° | 14" | 0.1" |
| The Dalles, OR | 31° | 88° | 15" | 5.5" |
| Sierra Vista Southeast, AZ | 32° | 91° | 15" | 0.7" |
| Alpine, TX | 30° | 90° | 15" | 2.2" |
| Kennewick, WA | 29° | 90° | 8" | 2.0" |
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 Tres Pinos averaged 2.0° warmer than the 1900s. The biggest change is in January (+2.8°).
A bigger shift than in 88% 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 Tres Pinos compares
Against 12,954 U.S. towns of 2,500 or more (one per 5 km climate cell), with Tres Pinos’ place among California’s.
Tres Pinos weather by month
Highs, lows and precipitation from NOAA’s grid at Tres Pinos’ center; snow, wet days and snow on the ground from Hollister 2, CA. 1991–2020 normals.
| Month | High | Low | Rain + melt | Snow | Wet days | Snow on ground | 30-yr range |
|---|---|---|---|---|---|---|---|
| January | 60° | 38° | 3.1" | 0.0" | 8 | 0 | 45° – 54° |
| February | 62° | 40° | 2.8" | 0.0" | 10 | 0 | 47° – 56° |
| March | 66° | 42° | 2.4" | 0.0" | 7 | 0 | 48° – 60° |
| April | 70° | 44° | 1.1" | 0.0" | 5 | 0 | 54° – 61° |
| May | 76° | 48° | 0.5" | 0.0" | 2 | 0 | 58° – 67° |
| June | 82° | 52° | 0.1" | 0.0" | 1 | 0 | 63° – 69° |
| July | 85° | 56° | 0.0" | 0.0" | 0 | 0 | 67° – 74° |
| August | 86° | 55° | 0.0" | 0.0" | 0 | 0 | 67° – 74° |
| September | 84° | 53° | 0.0" | 0.0" | 0 | 0 | 65° – 72° |
| October | 78° | 47° | 0.6" | 0.0" | 3 | 0 | 60° – 67° |
| November | 67° | 41° | 1.4" | 0.0" | 5 | 0 | 48° – 59° |
| December | 59° | 36° | 2.5" | 0.1" | 7 | 0 | 44° – 52° |
| Year | 73° | 46° | 14.4" | 0.1" | 48 | 0 |
How much a month can swing
A normal is an average. March swings the most: from 1991 to 2020 its average ranged from 48° to 60°. June is the most reliable, staying within 7°.
Where Tres Pinos’ 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 Tres Pinos’ center.
- Snow: Hollister 2, CA.
- Frost, freezing nights, 90° and 100° days, heating and cooling: Paicines 4 W, CA, 6 miles from the town’s center, 280 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 Tres Pinos’ climate
What is the weather like in Tres Pinos?
A typical July afternoon reaches 85°, a January night drops to 38°, and snow is almost unheard of. Milder January nights than 85% of U.S. towns; hotter July afternoons than 51% of U.S. towns.
How cold does it get in Tres Pinos in winter?
December nights average 36°. About 65 nights a year reach 32° or below. In the coldest December of the last 30 years the month averaged 44°.
How much snow does Tres Pinos get?
About 0.1 inches in a normal winter at Hollister 2, CA, so most winters see none.
How hot does it get in Tres Pinos?
July, with a typical high of 85° and a low of 56°. About 36 days a year reach 90° and 4 reach 100° (Paicines 4 W, CA).
When is the first and last frost in Tres Pinos?
In half of years the last spring frost (32°) comes by April 14 and the first fall frost by November 2, about 201 frost-free days, at Paicines 4 W, CA.
What growing zone is Tres Pinos in?
Zone 9a on the 2023 USDA Plant Hardiness Zone Map: the coldest night of a typical winter reaches about 24°.
What is the best time of year to visit Tres Pinos?
By one simple rule (highs of 62–84° and lows of 40° or more), March, April, May, June, October and November. The rule is ours, not NOAA’s; the month table has the numbers to judge by.
Is Tres Pinos getting warmer?
Yes: 1991–2020 averaged 2.0° warmer than 1901–2000 on NOAA’s grid. A bigger shift than 88% of U.S. towns.
Neighbors talk weather
Gardens, snow, and the best days of the year in Tres Pinos.
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.