Millerton reaches 100° on about 47 days a year, more than all but 155 U.S. towns
Deep winter brings January lows near 39°. Precipitation peaks in January and eases off in August. Its yearly precipitation falls short of 93% of U.S. towns. From March to May and October to November, highs of 66–83° make it easy to spend the day outdoors.
A year in Millerton at a glance
Each month’s typical high and low, and what it brings.
What stands out about Millerton’s climate
Compared with towns across the U.S., with Millerton’s place in California beside it.
What a year in Millerton feels like
Typical highs and lows by season and by month, from NOAA’s 30-year normals.
About 262 frost-free days a year
In half of years the last 32° night comes by March 9 and the first by December 1. Frost and day counts come from NOAA’s station at Friant Government Camp, CA, 2.7 miles from the town’s center, 290 ft lower.
The 2023 USDA map puts Millerton’s center in zone 9b: the coldest night of a typical winter, averaged over 1991–2020, reaches about 28°. 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 15 inches of rain a year
January is the wettest month and August the driest. Rain falls on about 56 days a year. Snow is rare: about 0.0" in a normal year at Friant Government Camp, CA, so most winters see none.
Rain + melted snow by month
Inches of water
Heating and cooling a home in Millerton
61% of the work is heating. Months averaging under 55° run from November through February.
Degree days add up how far each day’s average falls below (heating) or rises above (cooling) 65° over a year. NOAA normals at Friant Government Camp, CA.
Living with Millerton’s climate
What the numbers mean for a garden, a free afternoon and a bad-weather day.
262 frost-free days in zone 9b. The last frost comes by Mar 9 in half of years, so many gardeners wait a week or two past that to set out tomatoes. The first fall frost comes by Dec 1.
Months with highs of 62–84° and lows of 40° or more: March, April, May, October and November. 8.8 miles of trails are waiting.
Parks & trails →Of the yearly building losses FEMA expects in Millerton from natural hazards, wildfire is the largest share (62%); heat waves, cold waves, winter storms and ice storms together are 1%. Normals are averages; the hazards page covers the extremes.
Natural hazards →Millerton and similar climates
TownRatings has no climate map of the towns around Millerton yet.
Climates most like Millerton’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 |
|---|---|---|---|---|
| Millerton, CA | 39° | 98° | 15" | 0.0" |
| Rincon Valley, AZ | 36° | 98° | 13" | 0.1" |
| Eagle Pass, TX | 41° | 98° | 19" | 0.0" |
| Ivins, UT | 32° | 100° | 11" | 1.2" |
| Anthony, NM | 31° | 96° | 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 Millerton averaged 1.9° warmer than the 1900s. The biggest change is in January (+2.8°).
A bigger shift than in 87% 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 Millerton compares
Against 12,954 U.S. towns of 2,500 or more (one per 5 km climate cell), with Millerton’s place among California’s.
Millerton weather by month
Highs, lows and precipitation from NOAA’s grid at Millerton’s center; snow, wet days and snow on the ground from Friant Government Camp, CA. 1991–2020 normals.
| Month | High | Low | Rain + melt | Snow | Wet days | Snow on ground | 30-yr range |
|---|---|---|---|---|---|---|---|
| January | 56° | 39° | 3.2" | 0.0" | 10 | 0 | 42° – 53° |
| February | 61° | 41° | 2.6" | 0.0" | 9 | 0 | 47° – 56° |
| March | 67° | 44° | 2.7" | 0.0" | 8 | 0 | 48° – 62° |
| April | 73° | 46° | 1.3" | 0.0" | 5 | 0 | 55° – 64° |
| May | 83° | 53° | 0.6" | 0.0" | 3 | 0 | 59° – 76° |
| June | 92° | 59° | 0.2" | 0.0" | 1 | 0 | 69° – 80° |
| July | 98° | 65° | 0.0" | 0.0" | 0 | 0 | 78° – 85° |
| August | 97° | 64° | 0.0" | 0.0" | 0 | 0 | 77° – 84° |
| September | 91° | 59° | 0.1" | 0.0" | 1 | 0 | 71° – 79° |
| October | 80° | 51° | 0.8" | 0.0" | 3 | 0 | 62° – 70° |
| November | 66° | 43° | 1.4" | 0.0" | 6 | 0 | 47° – 59° |
| December | 56° | 38° | 2.5" | 0.0" | 9 | 0 | 43° – 50° |
| Year | 77° | 50° | 15.4" | 0.0" | 56 | 0 |
How much a month can swing
A normal is an average. May swings the most: from 1991 to 2020 its average ranged from 59° to 76°. December is the most reliable, staying within 7°.
Where Millerton’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 Millerton’s center.
- Snow: Friant Government Camp, CA.
- Frost, freezing nights, 90° and 100° days, heating and cooling: Friant Government Camp, CA, 2.7 miles from the town’s center, 290 ft lower; 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 Millerton’s climate
What is the weather like in Millerton?
A typical July afternoon reaches 98°, a January night drops to 39°, and snow is almost unheard of. Milder January nights than 86% of U.S. towns; hotter July afternoons than all but 187 U.S. towns.
How cold does it get in Millerton in winter?
December nights average 38°. About 17 nights a year reach 32° or below. In the coldest December of the last 30 years the month averaged 43°.
How much snow does Millerton get?
About 0.0 inches in a normal winter at Friant Government Camp, CA, so most winters see none.
How hot does it get in Millerton?
July, with a typical high of 98° and a low of 65°. About 118 days a year reach 90° and 47 reach 100° (Friant Government Camp, CA).
When is the first and last frost in Millerton?
In half of years the last spring frost (32°) comes by March 9 and the first fall frost by December 1, about 262 frost-free days, at Friant Government Camp, CA.
What growing zone is Millerton in?
Zone 9b on the 2023 USDA Plant Hardiness Zone Map: the coldest night of a typical winter reaches about 28°.
What is the best time of year to visit Millerton?
By one simple rule (highs of 62–84° and lows of 40° or more), March, April, May, October and November. The rule is ours, not NOAA’s; the month table has the numbers to judge by.
Is Millerton getting warmer?
Yes: 1991–2020 averaged 1.9° warmer than 1901–2000 on NOAA’s grid. A bigger shift than 87% of U.S. towns.
Neighbors talk weather
Gardens, snow, and the best days of the year in Millerton.
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.