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Monthly climate in Gallup, New Mexico, United States

Last updated: March 2, 2024

Under the Köppen–Geiger climate classification Gallup features a cold semi-arid climate (BSk). Temperatures typically range between -1 °C (31 °F) and 24 °C (75 °F) through the year, but rarely can drop to -21 °C (-6 °F) or can rise to as high as 36 °C (98 °F). The average annual precipitation amounts to about 260 mm (10.2 inches) and receives 53 rainy days on the 1 mm (0.04 inches) threshold annually. Gallup enjoys an average of 3617 hours of sunshine throughout the year, and daylight varies from 9 hours 46 minutes to 14 hours 30 minutes per day.

Monthly average temperatures in Gallup, New Mexico, United States §

The warmest months in Gallup are June, July and August, with daily mean temperatures ranging from 23 to 24 °C (73 - 75 °F) throughout the day. The coldest temperatures usually occur in January, February and December, when daily mean temperatures range from -1 to 2 °C (31 - 35 °F) throughout the day. On average each year, Gallup experiences 101 days above 25 °C (77.0 °F) and 108 days below 0 °C (32.0 °F).

Monthly average temperatures with daily means, minimums and maximums for period, average high and low temperatures in Gallup, New Mexico, United States. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to June 2022.
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Maximum 16°C
(60°F)		 18°C
(65°F)		 24°C
(75°F)		 27°C
(80°F)		 31°C
(87°F)		 35°C
(96°F)		 36°C
(98°F)		 34°C
(93°F)		 33°C
(92°F)		 29°C
(85°F)		 21°C
(69°F)		 15°C
(60°F)
Mean maximum 12°C
(54°F)		 14°C
(58°F)		 20°C
(69°F)		 25°C
(77°F)		 29°C
(84°F)		 32°C
(90°F)		 34°C
(94°F)		 33°C
(91°F)		 32°C
(89°F)		 26°C
(79°F)		 19°C
(67°F)		 13°C
(56°F)
Average high 5°C
(42°F)		 8°C
(47°F)		 13°C
(55°F)		 18°C
(65°F)		 23°C
(73°F)		 29°C
(85°F)		 30°C
(86°F)		 30°C
(85°F)		 26°C
(79°F)		 19°C
(67°F)		 13°C
(57°F)		 7°C
(45°F)
Daily mean -1°C
(31°F)		 2°C
(35°F)		 6°C
(43°F)		 12°C
(53°F)		 16°C
(61°F)		 23°C
(73°F)		 24°C
(75°F)		 23°C
(74°F)		 19°C
(67°F)		 12°C
(54°F)		 6°C
(44°F)		 1°C
(33°F)
Average low -6°C
(22°F)		 -4°C
(25°F)		 -0°C
(32°F)		 4°C
(39°F)		 8°C
(46°F)		 14°C
(58°F)		 17°C
(63°F)		 16°C
(61°F)		 12°C
(54°F)		 5°C
(41°F)		 -0°C
(32°F)		 -5°C
(24°F)
Mean minimum -17°C
(1°F)		 -12°C
(11°F)		 -9°C
(16°F)		 -5°C
(24°F)		 2°C
(35°F)		 7°C
(46°F)		 12°C
(55°F)		 13°C
(56°F)		 5°C
(41°F)		 -4°C
(24°F)		 -8°C
(18°F)		 -14°C
(8°F)
Minimum -21°C
(-6°F)		 -16°C
(3°F)		 -14°C
(6°F)		 -6°C
(21°F)		 -0°C
(32°F)		 5°C
(41°F)		 11°C
(52°F)		 11°C
(52°F)		 2°C
(35°F)		 -10°C
(14°F)		 -9°C
(16°F)		 -17°C
(3°F)

Compare climate in Gallup with other places

Compare temperature, precipitation, sunshine, UV index in Gallup, New Mexico, United States with other places around the world.

Monthly average precipitation in Gallup, New Mexico, United States §

Gallup usually has the most precipitation in February, March and July, with an average of 6 rainy days and 34 mm (1.3 inches) of precipitation per month. The driest months in Gallup are June, August and November. On average, 10 mm (0.4 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Gallup, New Mexico, United States. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to January 2022.
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Average precipitation mm (inches) 27 (1.1) 31 (1.2) 32 (1.3) 15 (0.6) 15 (0.6) 5 (0.2) 38 (1.5) 12 (0.5) 25 (1.0) 21 (0.8) 14 (0.5) 24 (1.0)
Average precipitation days (≥ 1 mm) 6 6 6 4 3 1 8 4 3 4 3 5

Monthly sunshine hours in Gallup, New Mexico, United States §

The sunniest months in Gallup are May, June and July, when the sun shines an average of 12 hours 3 minutes a day. Least sunny months in Gallup: January, February and December receive an average of 7 hours 19 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Gallup, New Mexico, United States. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2017 to January 2022.
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Mean monthly sunshine hours 191 238 295 329 363 373 372 351 313 290 261 236
Mean daily daylight hours 10h 2m 10h 53m 11h 59m 13h 6m 14h 3m 14h 30m 14h 15m 13h 25m 12h 20m 11h 14m 10h 15m 9h 46m

Solar UV radiation in Gallup, New Mexico, United States §

Gallup experiences the highest level of ultraviolet (UV) radiation in June, July and August, when the maximum UV index can reach values of 12 - 13, which corresponds to the Extreme category of sun exposure. January, November and December are in the Moderate / High exposure category. In these months, the maximum values of the UV index do not exceed 6. For more detailed information, check out our hourly Gallup UV Index data.

Average daily maximum UV levels by month for Gallup, New Mexico, United States. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2022 to January 2023.
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
UV Index (month maximum) 4 7 9 11 12 13 13 12 11 8 6 4

Detailed Monthly Weather Insights for Gallup, New Mexico, United States

Discover in-depth weather details for every month in Gallup. Click through the links below for comprehensive overviews of temperature trends, precipitation levels, sunshine hours, and solar UV radiation specifics. Whether planning a visit or simply curious about Gallup's climate nuances, these monthly breakdowns provide the information you need for an informed understanding of what to expect throughout the year.

Each link leads to a detailed account of the typical weather conditions for that month, providing both locals and tourists with vital information to plan their daily activities, wardrobe, and travel itineraries accordingly.