La Union, NM climate
La Union has mild winters and hot summers, with very little rain. A typical July afternoon reaches 96°, a January night drops to 32°, and about 2 inches of snow falls in a normal winter.
NOAA 1991-2020 climate normals Updated once a decadeWhat a year in La Union feels like
Winter
Spring
Summer
Fall
La Union weather by month
Average highs, lows, rain and snow for every month, from NOAA’s 1991–2020 normals.
| Month | High | Low | Rain + melt | Snow | Wet days | Snow on ground | 30-yr range |
|---|---|---|---|---|---|---|---|
| January | 59° | 32° | 0.5" | 0.3" | 3 | 0 | 41° – 49° |
| February | 65° | 36° | 0.4" | 0.2" | 3 | 0 | 45° – 55° |
| March | 72° | 42° | 0.2" | 0 | 2 | 0 | 53° – 63° |
| April | 80° | 49° | 0.1" | 0 | 2 | 0 | 59° – 69° |
| May | 89° | 58° | 0.3" | 0 | 2 | 0 | 70° – 77° |
| June | 97° | 67° | 0.6" | 0 | 3 | 0 | 78° – 86° |
| July | 96° | 71° | 2.1" | 0 | 8 | 0 | 78° – 88° |
| August | 94° | 69° | 1.6" | 0 | 7 | 0 | 78° – 87° |
| September | 89° | 63° | 1.5" | 0 | 6 | 0 | 70° – 79° |
| October | 80° | 50° | 0.7" | 0.1" | 5 | 0 | 62° – 70° |
| November | 68° | 39° | 0.5" | 0.2" | 2 | 0 | 47° – 60° |
| December | 58° | 31° | 0.6" | 1.2" | 3 | 0 | 40° – 49° |
| Year | 79° | 50° | 9.0" | 2.0" | 45 | 1 |
“Wet days” have at least 0.01" of rain or melted snow. “Snow on ground” counts days with 1" or more. The 30-year range is the coldest and warmest that month’s average temperature got between 1991 and 2020.
Rain and snow in La Union
La Union gets 9 inches of rain and melted snow a year. July is the wettest month and April the driest. Rain or snow falls on about 45 days a year.
About 231 frost-free days a year
In half of years the last 32° night comes by March 23 and the first one by November 11. That leaves about 231 frost-free days for gardens, longer than 86% of U.S. towns.
Heating and cooling a home in La Union
Engineers use “degree days” to estimate how hard a furnace or air conditioner works. In La Union, 57% of that work is heating and 43% is cooling.
Degree days measure how far each day’s average temperature falls below or rises above 65°, added up over a year. Source: NOAA station normals.
How La Union compares
Compared with every U.S. town and city on TownTapestry, each counted once.
Warmer than it used to be
The last 30 years in La Union averaged 1.8° warmer than the 1900s. The biggest change is in March (+2.7°). The shift is larger than in 88% of U.S. towns.
Change by month1991–2020 average minus 1901–2000 average, at La Union’s spot on NOAA’s grid
How much a month can swing
A normal is an average, and real years wander around it. November swings the most: between 1991 and 2020 its average temperature ranged from 47° to 60°. June is the most reliable, staying within 8°.
Common questions about La Union’s climate
What is the coldest month in La Union?
December, with a typical high of 58° and a low of 31°.
What is the hottest month in La Union?
June, with a typical high of 97° and a low of 67°. About 107 days a year reach 90°.
How much snow does La Union get?
About 2 inches in a normal winter, most of it in December.
When is the first frost in La Union?
In half of years the first 32° night comes by November 11, and the last spring frost by March 23.
What is the rainiest month in La Union?
July, with 2.1 inches of rain and melted snow. The year totals 9 inches.
Temperatures and rainfall come from NOAA’s gridded climate normals for La Union itself (about a 3-mile square). Snow, frost dates and day counts come from NOAA’s weather station at Santa Teresa Airport, NM (6 mi) away. Normals are 30-year averages, not a forecast. Source: NOAA NCEI U.S. Climate Normals, 1991–2020 and 1901–2000.