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Monthly climate in Mertzon, Texas, United States

Last updated: May 6, 2024

Under the Köppen–Geiger climate classification Mertzon features a hot semi-arid climate (BSh).Temperatures typically range between 8 °C (47 °F) and 29 °C (84 °F) through the year, but rarely can drop to -15 °C (4 °F) or can rise to as high as 42 °C (107 °F).The average annual precipitation amounts to about 533 mm (21.0 inches) and receives 62 rainy days on the 1 mm (0.04 inches) threshold annually.Mertzon enjoys an average of 3355 hours of sunshine throughout the year, and daylight varies from 10 hours 8 minutes to 14 hours 8 minutes per day.

Monthly average temperatures in Mertzon, Texas, United States §

The warmest months in Mertzon are June, July and August, with daily mean temperatures ranging from 27 to 29 °C (82 - 84 °F) throughout the day. The coldest temperatures usually occur in January, February and December, when daily mean temperatures range from 8 to 10 °C (47 - 51 °F) throughout the day. On average each year, Mertzon experiences 182 days above 25 °C (77.0 °F) and 25 days below 0 °C (32.0 °F).

Monthly average temperatures with daily means, minimums and maximums for period, average high and low temperatures in Mertzon, Texas, 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 26°C
(79°F)		 32°C
(89°F)		 32°C
(90°F)		 37°C
(99°F)		 40°C
(105°F)		 40°C
(105°F)		 42°C
(107°F)		 41°C
(105°F)		 38°C
(101°F)		 37°C
(98°F)		 31°C
(89°F)		 28°C
(83°F)
Mean maximum 24°C
(76°F)		 27°C
(82°F)		 31°C
(88°F)		 35°C
(94°F)		 37°C
(99°F)		 38°C
(100°F)		 39°C
(103°F)		 38°C
(101°F)		 37°C
(98°F)		 33°C
(92°F)		 29°C
(84°F)		 26°C
(79°F)
Average high 15°C
(60°F)		 17°C
(63°F)		 23°C
(73°F)		 26°C
(79°F)		 30°C
(87°F)		 33°C
(92°F)		 35°C
(95°F)		 34°C
(94°F)		 31°C
(88°F)		 26°C
(79°F)		 20°C
(69°F)		 17°C
(64°F)
Daily mean 8°C
(47°F)		 10°C
(50°F)		 16°C
(61°F)		 19°C
(67°F)		 24°C
(76°F)		 27°C
(82°F)		 29°C
(84°F)		 29°C
(84°F)		 25°C
(78°F)		 20°C
(67°F)		 14°C
(57°F)		 10°C
(51°F)
Average low 2°C
(37°F)		 4°C
(39°F)		 10°C
(49°F)		 13°C
(55°F)		 18°C
(64°F)		 21°C
(71°F)		 23°C
(74°F)		 23°C
(74°F)		 20°C
(67°F)		 14°C
(57°F)		 8°C
(46°F)		 4°C
(40°F)
Mean minimum -7°C
(20°F)		 -6°C
(21°F)		 -1°C
(31°F)		 4°C
(39°F)		 10°C
(50°F)		 18°C
(64°F)		 20°C
(68°F)		 19°C
(66°F)		 13°C
(55°F)		 2°C
(35°F)		 -1°C
(30°F)		 -2°C
(28°F)
Minimum -10°C
(14°F)		 -15°C
(4°F)		 -7°C
(20°F)		 2°C
(36°F)		 6°C
(43°F)		 15°C
(59°F)		 16°C
(61°F)		 15°C
(59°F)		 7°C
(44°F)		 -2°C
(28°F)		 -5°C
(24°F)		 -4°C
(25°F)

Compare climate in Mertzon with other places

Compare temperature, precipitation, sunshine, UV index in Mertzon, Texas, United States with other places around the world.

Monthly average precipitation in Mertzon, Texas, United States §

Mertzon usually has the most precipitation in May, September and October, with an average of 7 rainy days and 79 mm (3.1 inches) of precipitation per month.The driest months in Mertzon are January, February and July. On average, 21 mm (0.8 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Mertzon, Texas, 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) 23 (0.9) 22 (0.9) 48 (1.9) 49 (1.9) 106 (4.2) 49 (1.9) 19 (0.7) 35 (1.4) 79 (3.1) 52 (2.1) 26 (1.0) 24 (0.9)
Average precipitation days (≥ 1 mm) 3 3 6 6 11 7 5 6 5 5 2 3

Monthly sunshine hours in Mertzon, Texas, United States §

The sunniest months in Mertzon are June, July and August, when the sun shines an average of 11 hours 25 minutes a day.Least sunny months in Mertzon: January, February and December receive an average of 7 hours 4 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Mertzon, Texas, 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 193 205 258 280 318 341 367 342 288 268 246 245
Mean daily daylight hours 10h 21m 11h 4m 12h 0m 12h 57m 13h 44m 14h 8m 13h 55m 13h 13m 12h 18m 11h 21m 10h 32m 10h 8m

Solar UV radiation in Mertzon, Texas, United States §

Mertzon experiences the highest level of ultraviolet (UV) radiation in May, July and August, when the maximum UV index can reach values of 12 - 12, 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 Mertzon UV Index data.

Average daily maximum UV levels by month for Mertzon, Texas, 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) 5 7 9 11 12 12 12 12 11 8 6 5