Precipitation in San Pedro trails that of 93% of U.S. towns: 16 inches a year
The coldest hours of a January night bottom out at 20° on average. By July afternoons alone, it runs cooler than 64% of U.S. towns. Decade by decade the climate has edged up, 1.6° above 1901–2000. Garden chairs stay out from May to September, the months with highs of 72–84°.
A year in San Pedro at a glance
Each month’s typical high and low, and what it brings.
What stands out about San Pedro’s climate
Compared with towns across the U.S., with San Pedro’s place in New Mexico beside it.
What a year in San Pedro 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, 10 miles from the town’s center, 160 ft lower.
The 2023 USDA map puts San Pedro’s center in zone 7a: the coldest night of a typical winter, averaged over 1991–2020, reaches about 3°. 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 16 inches a year; July is the wettest month and February 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 Pedro
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 Pedro’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, July, August and September. 4.1 miles of trails are waiting.
Parks & trails →Of the yearly building losses FEMA expects in San Pedro from natural hazards, river flooding is the largest share (72%); heat waves, cold waves, winter storms and ice storms together are 3%. Normals are averages; the hazards page covers the extremes.
Natural hazards →San Pedro and its neighbors
Golden the hottest July afternoons (87°, 4° 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 San Pedro’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 Pedro, NM | 20° | 84° | 16" | 29" |
| Polson, MT | 20° | 83° | 19" | 34" |
| Cimarron Hills, CO | 18° | 85° | 17" | 33" |
| Deschutes River Woods, OR | 24° | 84° | 13" | 22" |
| Show Low, AZ | 19° | 86° | 15" | 19" |
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 San Pedro averaged 1.6° warmer than the 1900s. The biggest change is in March (+3.0°).
A bigger shift than in 68% 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 Pedro compares
Against 12,954 U.S. towns of 2,500 or more (one per 5 km climate cell), with San Pedro’s place among New Mexico’s.
San Pedro weather by month
Highs, lows and precipitation from NOAA’s grid at San Pedro’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 | 42° | 20° | 0.8" | 5.6" | 5 | 25° – 36° |
| February | 46° | 22° | 0.8" | 2.5" | 4 | 29° – 40° |
| March | 55° | 27° | 1.0" | 6.2" | 5 | 37° – 46° |
| April | 62° | 32° | 0.9" | 1.2" | 4 | 43° – 52° |
| May | 72° | 40° | 0.9" | 0.0" | 4 | 52° – 62° |
| June | 82° | 49° | 1.0" | 0.0" | 4 | 61° – 69° |
| July | 84° | 54° | 2.8" | 0.0" | 10 | 66° – 73° |
| August | 81° | 53° | 2.7" | 0.0" | 9 | 64° – 71° |
| September | 75° | 47° | 1.6" | 0.0" | 6 | 55° – 65° |
| October | 64° | 37° | 1.3" | 1.1" | 5 | 47° – 55° |
| November | 51° | 27° | 0.8" | 3.9" | 4 | 31° – 46° |
| December | 42° | 20° | 1.0" | 8.1" | 5 | 25° – 36° |
| Year | 63° | 36° | 15.5" | 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 31° to 46°. August is the most reliable, staying within 7°.
Where San Pedro’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 Pedro’s center.
- Snow: Golden, NM.
- Frost, freezing nights, 90° and 100° days, heating and cooling: Sandia Park, NM, 10 miles from the town’s center, 160 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 San Pedro’s climate
What is the weather like in San Pedro?
A typical July afternoon reaches 84°, a January night drops to 20°, and about 29 inches of snow falls in a normal winter. Colder January nights than 59% of U.S. towns; cooler July afternoons than 64% of U.S. towns.
How cold does it get in San Pedro 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 25°.
How much snow does San Pedro get?
About 29 inches in a normal winter at Golden, NM, most of it in December.
How hot does it get in San Pedro?
July, with a typical high of 84° and a low of 54°. About 8 days a year reach 90° (Sandia Park, NM).
When is the first and last frost in San Pedro?
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 Pedro in?
Zone 7a on the 2023 USDA Plant Hardiness Zone Map: the coldest night of a typical winter reaches about 3°.
What is the best time of year to visit San Pedro?
By one simple rule (highs of 62–84° and lows of 40° or more), May, June, July, August and September. The rule is ours, not NOAA’s; the month table has the numbers to judge by.
Is San Pedro getting warmer?
Yes: 1991–2020 averaged 1.6° warmer than 1901–2000 on NOAA’s grid. A bigger shift than 68% of U.S. towns.
Neighbors talk weather
Gardens, snow, and the best days of the year in San Pedro.
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.