Gallup, NM climate
Gallup has chilly, snowy winters and warm summers, with very little rain. A typical July afternoon reaches 88°, a January night drops to 17°, and about 34 inches of snow falls in a normal winter.
NOAA 1991-2020 climate normals Updated once a decadeWhat a year in Gallup feels like
Winter
Spring
Summer
Fall
Gallup 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 | 45° | 17° | 0.8" | 6.3" | 6 | 8 | 25° – 37° |
| February | 49° | 20° | 0.6" | 5.9" | 6 | 3 | 30° – 41° |
| March | 58° | 26° | 0.6" | 4.4" | 5 | 1 | 36° – 46° |
| April | 65° | 31° | 0.4" | 2.3" | 4 | 1 | 43° – 53° |
| May | 74° | 39° | 0.5" | 1.1" | 4 | 0 | 52° – 60° |
| June | 86° | 47° | 0.4" | 0 | 3 | 0 | 62° – 71° |
| July | 88° | 56° | 1.5" | 0 | 10 | 0 | 68° – 75° |
| August | 85° | 55° | 1.7" | 0 | 11 | 0 | 67° – 74° |
| September | 79° | 46° | 1.2" | 0 | 7 | 0 | 58° – 66° |
| October | 68° | 34° | 1.0" | 1.5" | 6 | 0 | 48° – 56° |
| November | 55° | 23° | 0.7" | 4.5" | 5 | 2 | 32° – 46° |
| December | 45° | 16° | 0.7" | 7.8" | 6 | 8 | 24° – 37° |
| Year | 66° | 34° | 10.1" | 33.8" | 73 | 23 |
“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 Gallup
Gallup gets 10 inches of rain and melted snow a year. August is the wettest month and June the driest. Rain or snow falls on about 73 days a year. Snow covers the ground about 23 days of the year.
About 119 frost-free days a year
In half of years the last 32° night comes by May 31 and the first one by September 28. That leaves about 119 frost-free days for gardens, shorter than 97% of U.S. towns.
Heating and cooling a home in Gallup
Engineers use “degree days” to estimate how hard a furnace or air conditioner works. In Gallup, 93% of that work is heating and 7% is cooling, so the furnace matters far more than the air conditioner.
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.
Gallup and its neighbors
Gallup borders 3 towns with climate data. January nights across them vary by 2.0°. Catalpa Canyon has the coldest January nights (17°) and Sundance the hottest July afternoons (88°). Gallup’s January low is 17° and its July high 88°.
Temperatures and rain come from NOAA’s 5 km grid, so each town gets its own value.
How Gallup 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 Gallup averaged 1.4° warmer than the 1900s. The biggest change is in March (+2.8°). The shift is larger than in 67% of U.S. towns.
Change by month1991–2020 average minus 1901–2000 average, at Gallup’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 32° to 46°. August is the most reliable, staying within 7°.
Common questions about Gallup’s climate
What is the coldest month in Gallup?
December, with a typical high of 45° and a low of 16°.
What is the hottest month in Gallup?
July, with a typical high of 88° and a low of 56°. About 35 days a year reach 90°.
How much snow does Gallup get?
About 34 inches in a normal winter, most of it in December.
When is the first frost in Gallup?
In half of years the first 32° night comes by September 28, and the last spring frost by May 31.
What is the rainiest month in Gallup?
August, with 1.7 inches of rain and melted snow. The year totals 10 inches.
Temperatures and rainfall come from NOAA’s gridded climate normals for Gallup itself (about a 3-mile square). Snow, frost dates and day counts come from NOAA’s weather station at Gallup Municipal Airport, NM (3 mi) away. Normals are 30-year averages, not a forecast. Source: NOAA NCEI U.S. Climate Normals, 1991–2020 and 1901–2000.