Photo: John Phelan · CC BY 3.0Precipitation in San Antonito trails that of 92% of U.S. towns: 17 inches a year
January mornings start at about 20°. Winter nights are cold: in January they are colder than in 60% of U.S. towns. March has warmed most since 1901–2000, part of a 1.7° rise. For walks and days out, May, June, August and September bring highs of 73–83°.
A year in San Antonito at a glance
Each month’s typical high and low, and what it brings.
What stands out about San Antonito’s climate
Compared with towns across the U.S., with San Antonito’s place in New Mexico beside it.
What a year in San Antonito feels like
Typical highs and lows by season and by month, from NOAA’s 30-year normals.
About 152 frost-free days a year
In half of years the last 32° night comes by May 9 and the first by October 9. Frost and day counts come from NOAA’s station at Sandia Park, NM, 4 miles from the town’s center, 110 ft higher.
The 2023 USDA map puts San Antonito’s center in zone 7a: the coldest night of a typical winter, averaged over 1991–2020, reaches about 4°. 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 29 inches of snow a winter
Snow, measured at Golden, NM, falls mostly in December. Precipitation (rain plus melted snow) adds up to 17 inches a year; July is the wettest month and May the driest. Rain or snow falls on about 62 days a year.
Rain + melted snow by month
Inches of water
Snowfall by month
Inches of snow
Heating and cooling a home in San Antonito
95% of the work is heating, so the furnace matters far more than the air conditioner. Months averaging under 55° run from October through April.
Degree days add up how far each day’s average falls below (heating) or rises above (cooling) 65° over a year. NOAA normals at Sandia Park, NM.
Living with San Antonito’s climate
What the numbers mean for a garden, a free afternoon and a bad-weather day.
152 frost-free days in zone 7a. The last frost comes by May 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 Oct 9.
Months with highs of 62–84° and lows of 40° or more: May, June, August and September. 2.3 miles of trails are waiting.
Parks & trails →Of the yearly building losses FEMA expects in San Antonito from natural hazards, river flooding is the largest share (55%); heat waves, cold waves, winter storms and ice storms together are 4%. Normals are averages; the hazards page covers the extremes.
Natural hazards →San Antonito and similar climates
TownRatings has no climate map of the towns around San Antonito yet.
Climates most like San Antonito’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 |
|---|---|---|---|---|
| San Antonito, NM | 20° | 85° | 17" | 29" |
| Cimarron Hills, CO | 18° | 85° | 17" | 33" |
| Polson, MT | 20° | 83° | 19" | 34" |
| Show Low, AZ | 19° | 86° | 15" | 19" |
| Deschutes River Woods, OR | 24° | 84° | 13" | 22" |
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 San Antonito averaged 1.7° warmer than the 1900s. The biggest change is in March (+3.0°).
A bigger shift than in 75% 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 San Antonito compares
Against 12,954 U.S. towns of 2,500 or more (one per 5 km climate cell), with San Antonito’s place among New Mexico’s.
San Antonito weather by month
Highs, lows and precipitation from NOAA’s grid at San Antonito’s center; snow, wet days and snow on the ground from Golden, NM. 1991–2020 normals.
| Month | High | Low | Rain + melt | Snow | Wet days | 30-yr range |
|---|---|---|---|---|---|---|
| January | 43° | 20° | 1.2" | 5.6" | 5 | 26° – 37° |
| February | 47° | 23° | 1.2" | 2.5" | 4 | 30° – 40° |
| March | 56° | 28° | 1.2" | 6.2" | 5 | 38° – 47° |
| April | 63° | 33° | 0.8" | 1.2" | 4 | 44° – 53° |
| May | 73° | 41° | 0.8" | 0.0" | 4 | 52° – 62° |
| June | 83° | 50° | 0.8" | 0.0" | 4 | 62° – 70° |
| July | 85° | 55° | 3.0" | 0.0" | 10 | 66° – 74° |
| August | 82° | 53° | 2.7" | 0.0" | 9 | 65° – 72° |
| September | 76° | 47° | 1.5" | 0.0" | 6 | 56° – 65° |
| October | 65° | 37° | 1.4" | 1.1" | 5 | 48° – 56° |
| November | 52° | 27° | 1.0" | 3.9" | 4 | 32° – 47° |
| December | 43° | 20° | 1.5" | 8.1" | 5 | 26° – 37° |
| Year | 64° | 36° | 16.9" | 28.6" | 62 |
How much a month can swing
A normal is an average. November swings the most: from 1991 to 2020 its average ranged from 32° to 47°. August is the most reliable, staying within 7°.
Where San Antonito’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 San Antonito’s center.
- Snow: Golden, NM.
- Frost, freezing nights, 90° and 100° days, heating and cooling: Sandia Park, NM, 4 miles from the town’s center, 110 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 San Antonito’s climate
What is the weather like in San Antonito?
A typical July afternoon reaches 85°, a January night drops to 20°, and about 29 inches of snow falls in a normal winter. Colder January nights than 60% of U.S. towns; cooler July afternoons than 55% of U.S. towns.
How cold does it get in San Antonito in winter?
January nights average 20°. About 171 nights a year reach 32° or below and 3 reach 0° or below. In the coldest January of the last 30 years the month averaged 26°.
How much snow does San Antonito get?
About 29 inches in a normal winter at Golden, NM, most of it in December.
How hot does it get in San Antonito?
July, with a typical high of 85° and a low of 55°. About 8 days a year reach 90° (Sandia Park, NM).
When is the first and last frost in San Antonito?
In half of years the last spring frost (32°) comes by May 9 and the first fall frost by October 9, about 152 frost-free days, at Sandia Park, NM.
What growing zone is San Antonito in?
Zone 7a on the 2023 USDA Plant Hardiness Zone Map: the coldest night of a typical winter reaches about 4°.
What is the best time of year to visit San Antonito?
By one simple rule (highs of 62–84° and lows of 40° or more), May, June, August and September. The rule is ours, not NOAA’s; the month table has the numbers to judge by.
Is San Antonito getting warmer?
Yes: 1991–2020 averaged 1.7° warmer than 1901–2000 on NOAA’s grid. A bigger shift than 75% of U.S. towns.
Neighbors talk weather
Gardens, snow, and the best days of the year in San Antonito.
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.