Cross Mountain’s winters are milder and less snowy than most of the U.S.
A typical July afternoon reaches 94°, a January night drops to 40°, and snow is almost unheard of.
A year in Cross Mountain at a glance
Each month’s typical high and low, and what it brings.
What stands out about Cross Mountain’s climate
Compared with towns across the U.S., with Cross Mountain’s place in Texas beside it.
What a year in Cross Mountain feels like
Typical highs and lows by season and by month, from NOAA’s 30-year normals.
About 243 frost-free days a year
In half of years the last 32° night comes by March 15 and the first by November 13. Frost and day counts come from NOAA’s station at Boerne, TX, 11 miles from the town’s center, 130 ft higher.
The 2023 USDA map puts Cross Mountain’s center in zone 8b: the coldest night of a typical winter, averaged over 1991–2020, reaches about 19°. 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 33 inches of rain a year
May is the wettest month and February the driest. Rain falls on about 81 days a year. Snow is rare: about 0.2" in a normal year at San Antonio International Airport, so most winters see none.
Rain + melted snow by month
Inches of water
Heating and cooling a home in Cross Mountain
44% of the work is heating, so air conditioning is the bigger bill. Months averaging under 55°: December and January.
Degree days add up how far each day’s average falls below (heating) or rises above (cooling) 65° over a year. NOAA normals at Boerne, TX.
Living with Cross Mountain’s climate
What the numbers mean for a garden, a free afternoon and a bad-weather day.
243 frost-free days in zone 8b. The last frost comes by Mar 15 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 13.
Months with highs of 62–84° and lows of 40° or more: January, February, March, April, October, November and December. 1.8 miles of trails are waiting.
Parks & trails →Of the yearly building losses FEMA expects in Cross Mountain from natural hazards, river flooding is the largest share (67%); heat waves, cold waves, winter storms and ice storms together are 6%. Normals are averages; the hazards page covers the extremes.
Natural hazards →Cross Mountain and its neighbors
San Antonio the hottest July afternoons (95°, 1° 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 Cross Mountain’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 |
|---|---|---|---|---|
| Cross Mountain, TX | 40° | 94° | 33" | 0.2" |
| Jackson, CA | 38° | 94° | 30" | 0.0" |
| Grants Pass, OR | 34° | 90° | 33" | 0.9" |
| Lone Grove, OK | 31° | 94° | 39" | 2.7" |
| Lugoff, SC | 33° | 92° | 43" | 0.4" |
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 Cross Mountain averaged 1.0° warmer than the 1900s. The biggest change is in February (+1.9°).
A smaller shift than in 81% 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 Cross Mountain compares
Against 12,954 U.S. towns of 2,500 or more (one per 5 km climate cell), with Cross Mountain’s place among Texas’.
Cross Mountain weather by month
Highs, lows and precipitation from NOAA’s grid at Cross Mountain’s center; snow, wet days and snow on the ground from San Antonio International Airport. 1991–2020 normals.
| Month | High | Low | Rain + melt | Snow | Wet days | Snow on ground | 30-yr range |
|---|---|---|---|---|---|---|---|
| January | 63° | 40° | 2.1" | 0.0" | 7 | 0 | 47° – 57° |
| February | 67° | 44° | 1.9" | 0.1" | 7 | 0 | 48° – 63° |
| March | 73° | 51° | 2.6" | 0.0" | 9 | 0 | 55° – 67° |
| April | 80° | 57° | 2.5" | 0.0" | 6 | 0 | 63° – 74° |
| May | 86° | 65° | 4.4" | 0.0" | 8 | 0 | 71° – 79° |
| June | 91° | 71° | 3.5" | 0.0" | 7 | 0 | 77° – 85° |
| July | 94° | 73° | 2.3" | 0.0" | 5 | 0 | 78° – 87° |
| August | 95° | 72° | 2.5" | 0.0" | 5 | 0 | 79° – 88° |
| September | 89° | 67° | 3.8" | 0.0" | 7 | 0 | 75° – 84° |
| October | 81° | 58° | 3.6" | 0.0" | 6 | 0 | 67° – 75° |
| November | 71° | 49° | 2.4" | 0.0" | 6 | 0 | 54° – 65° |
| December | 64° | 41° | 1.9" | 0.1" | 7 | 0 | 46° – 56° |
| Year | 79° | 57° | 33.4" | 0.2" | 81 | 0 |
How much a month can swing
A normal is an average. February swings the most: from 1991 to 2020 its average ranged from 48° to 63°. May is the most reliable, staying within 8°.
Where Cross Mountain’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 Cross Mountain’s center.
- Snow: San Antonio International Airport.
- Frost, freezing nights, 90° and 100° days, heating and cooling: Boerne, TX, 11 miles from the town’s center, 130 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 Cross Mountain’s climate
What is the weather like in Cross Mountain?
A typical July afternoon reaches 94°, a January night drops to 40°, and snow is almost unheard of. Milder January nights than 89% of U.S. towns; hotter July afternoons than 93% of U.S. towns.
How cold does it get in Cross Mountain in winter?
January nights average 40°. About 40 nights a year reach 32° or below. In the coldest January of the last 30 years the month averaged 47°.
How much snow does Cross Mountain get?
About 0.2 inches in a normal winter at San Antonio International Airport, so most winters see none.
How hot does it get in Cross Mountain?
July, with a typical high of 94° and a low of 73°. About 95 days a year reach 90° and 5 reach 100° (Boerne, TX).
When is the first and last frost in Cross Mountain?
In half of years the last spring frost (32°) comes by March 15 and the first fall frost by November 13, about 243 frost-free days, at Boerne, TX.
What growing zone is Cross Mountain in?
Zone 8b on the 2023 USDA Plant Hardiness Zone Map: the coldest night of a typical winter reaches about 19°.
What is the best time of year to visit Cross Mountain?
By one simple rule (highs of 62–84° and lows of 40° or more), January, February, March, April, October, November and December. The rule is ours, not NOAA’s; the month table has the numbers to judge by.
Is Cross Mountain getting warmer?
Yes: 1991–2020 averaged 1.0° warmer than 1901–2000 on NOAA’s grid. A smaller shift than 81% of U.S. towns.
Neighbors talk weather
Gardens, snow, and the best days of the year in Cross Mountain.
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.