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Monthly climate in Reforma, Mexico

Last updated: July 31, 2025

Under the Köppen–Geiger climate classification Reforma features a cold semi-arid climate (BSk). Temperatures typically range between 12 °C (54 °F) and 22 °C (71 °F) through the year, but rarely can drop to -7 °C (20 °F) or can rise to as high as 34 °C (94 °F). The average annual precipitation amounts to about 437 mm (17.2 inches) and receives 64 rainy days on the 1 mm (0.04 inches) threshold annually. Reforma enjoys an average of 3609 hours of sunshine throughout the year, and daylight varies from 10 hours 45 minutes to 13 hours 29 minutes per day.

Monthly average temperatures in Reforma, Mexico

The warmest months in Reforma are May, June and August, with daily mean temperatures ranging from 20 to 22 °C (68 - 71 °F) throughout the day. The coldest temperatures usually occur in January, February and December, when daily mean temperatures range from 12 to 15 °C (54 - 59 °F) throughout the day. On average each year, Reforma experiences 164 days above 25 °C (77.0 °F) and 2 days below 0 °C (32.0 °F).

Monthly average temperatures with daily means, minimums and maximums for period, average high and low temperatures in Reforma. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to June 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Maximum26°C
(79°F)		31°C
(88°F)		33°C
(91°F)		33°C
(91°F)		34°C
(94°F)		34°C
(93°F)		31°C
(87°F)		30°C
(87°F)		29°C
(84°F)		28°C
(83°F)		28°C
(82°F)		26°C
(79°F)
Mean maximum25°C
(77°F)		28°C
(82°F)		30°C
(86°F)		31°C
(88°F)		33°C
(91°F)		31°C
(89°F)		30°C
(86°F)		30°C
(86°F)		28°C
(83°F)		27°C
(82°F)		26°C
(80°F)		25°C
(77°F)
Average high20°C
(68°F)		23°C
(73°F)		26°C
(79°F)		28°C
(82°F)		29°C
(85°F)		27°C
(81°F)		26°C
(79°F)		26°C
(80°F)		24°C
(76°F)		24°C
(75°F)		22°C
(73°F)		21°C
(69°F)
Daily mean12°C
(54°F)		15°C
(59°F)		18°C
(64°F)		20°C
(68°F)		22°C
(71°F)		21°C
(69°F)		20°C
(68°F)		20°C
(68°F)		18°C
(66°F)		17°C
(64°F)		15°C
(59°F)		13°C
(55°F)
Average low6°C
(43°F)		8°C
(46°F)		10°C
(50°F)		12°C
(54°F)		14°C
(58°F)		15°C
(59°F)		14°C
(58°F)		14°C
(58°F)		14°C
(57°F)		12°C
(54°F)		9°C
(48°F)		6°C
(43°F)
Mean minimum0°C
(33°F)		2°C
(35°F)		5°C
(41°F)		7°C
(45°F)		10°C
(51°F)		13°C
(55°F)		12°C
(55°F)		13°C
(55°F)		11°C
(52°F)		8°C
(46°F)		3°C
(38°F)		-2°C
(29°F)
Minimum-1°C
(30°F)		0°C
(33°F)		1°C
(34°F)		6°C
(42°F)		8°C
(46°F)		10°C
(51°F)		12°C
(54°F)		11°C
(53°F)		9°C
(48°F)		4°C
(40°F)		-2°C
(30°F)		-7°C
(20°F)

Compare climate in Reforma with other places

Compare temperature, precipitation, sunshine, UV index in Reforma, Mexico with other places around the world.

Monthly average precipitation in Reforma, Mexico

Reforma usually has the most precipitation in June, July and September, with an average of 11 rainy days and 84 mm (3.3 inches) of precipitation per month. The driest months in Reforma are February, March and April. On average, 8 mm (0.3 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Reforma. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Average precipitation mm (inches)12 (0.5)8 (0.3)10 (0.4)6 (0.3)32 (1.2)79 (3.1)77 (3.0)55 (2.2)96 (3.8)39 (1.5)12 (0.5)11 (0.4)
Average precipitation days (≥ 1 mm)222261011713711

Monthly sunshine hours in Reforma, Mexico

The sunniest months in Reforma are May, July and August, when the sun shines an average of 10 hours 53 minutes a day. Least sunny months in Reforma: January, February and November receive an average of 8 hours 29 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Reforma. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Mean monthly sunshine hours224265311324346332333334296286274279
Mean daily daylight hours10h 54m11h 23m12h 1m12h 40m13h 13m13h 29m13h 20m12h 51m12h 14m11h 35m11h 2m10h 45m

Solar UV radiation in Reforma, Mexico

Reforma experiences the highest level of ultraviolet (UV) radiation in April, May and September, when the maximum UV index can reach values of 14 - 15, which corresponds to the Extreme category of sun exposure. January, November and December are in the Very High exposure category. In these months, the maximum values of the UV index do not exceed 10. For more detailed information, check out our hourly Reforma UV Index data.

Average daily maximum UV levels by month for Reforma. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2022 to January 2023.
 JanFebMarAprMayJunJulAugSepOctNovDec
UV Index (month maximum)8111415151414141412108