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Monthly climate in Montezuma, Iowa, United States

Last updated: May 6, 2024

Under the Köppen–Geiger climate classification Montezuma features a humid continental climate (Dfa).Temperatures typically range between -5 °C (23 °F) and 25 °C (77 °F) through the year, but rarely can drop to -31 °C (-24 °F) or can rise to as high as 37 °C (98 °F).The average annual precipitation amounts to about 1021 mm (40.2 inches) and receives 106 rainy days on the 1 mm (0.04 inches) threshold annually.Montezuma enjoys an average of 3030 hours of sunshine throughout the year, and daylight varies from 9 hours 12 minutes to 15 hours 7 minutes per day.

Monthly average temperatures in Montezuma, Iowa, United States §

The warmest months in Montezuma are June, July and August, with daily mean temperatures ranging from 23 to 25 °C (74 - 77 °F) throughout the day. The coldest temperatures usually occur in January, February and December, when daily mean temperatures range from -5 to 0 °C (23 - 31 °F) throughout the day. On average each year, Montezuma experiences 97 days above 25 °C (77.0 °F) and 118 days below 0 °C (32.0 °F).

Monthly average temperatures with daily means, minimums and maximums for period, average high and low temperatures in Montezuma, Iowa, 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 13°C
(57°F)		 22°C
(72°F)		 23°C
(73°F)		 29°C
(85°F)		 35°C
(95°F)		 37°C
(98°F)		 35°C
(96°F)		 36°C
(97°F)		 33°C
(92°F)		 31°C
(88°F)		 24°C
(75°F)		 23°C
(73°F)
Mean maximum 11°C
(52°F)		 15°C
(58°F)		 20°C
(69°F)		 27°C
(80°F)		 32°C
(90°F)		 34°C
(93°F)		 34°C
(94°F)		 33°C
(92°F)		 32°C
(90°F)		 30°C
(86°F)		 19°C
(66°F)		 17°C
(63°F)
Average high -1°C
(30°F)		 1°C
(33°F)		 9°C
(49°F)		 15°C
(60°F)		 22°C
(72°F)		 28°C
(83°F)		 29°C
(85°F)		 28°C
(83°F)		 26°C
(79°F)		 17°C
(62°F)		 9°C
(48°F)		 4°C
(40°F)
Daily mean -5°C
(23°F)		 -4°C
(24°F)		 4°C
(40°F)		 10°C
(50°F)		 17°C
(63°F)		 23°C
(74°F)		 25°C
(77°F)		 23°C
(74°F)		 20°C
(68°F)		 12°C
(53°F)		 4°C
(39°F)		 -0°C
(31°F)
Average low -9°C
(15°F)		 -9°C
(16°F)		 -0°C
(32°F)		 4°C
(40°F)		 12°C
(54°F)		 18°C
(65°F)		 20°C
(68°F)		 18°C
(64°F)		 15°C
(58°F)		 7°C
(45°F)		 -1°C
(30°F)		 -5°C
(23°F)
Mean minimum -24°C
(-11°F)		 -22°C
(-8°F)		 -12°C
(10°F)		 -6°C
(22°F)		 4°C
(40°F)		 12°C
(54°F)		 15°C
(59°F)		 12°C
(54°F)		 7°C
(45°F)		 -3°C
(27°F)		 -11°C
(12°F)		 -15°C
(5°F)
Minimum -31°C
(-23°F)		 -31°C
(-24°F)		 -22°C
(-7°F)		 -10°C
(14°F)		 1°C
(34°F)		 9°C
(49°F)		 13°C
(56°F)		 11°C
(52°F)		 5°C
(40°F)		 -5°C
(24°F)		 -17°C
(2°F)		 -22°C
(-8°F)

Compare climate in Montezuma with other places

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

Monthly average precipitation in Montezuma, Iowa, United States §

Montezuma usually has the most precipitation in May, June and October, with an average of 12 rainy days and 142 mm (5.6 inches) of precipitation per month.The driest months in Montezuma are January, November and December. On average, 46 mm (1.8 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Montezuma, Iowa, 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) 46 (1.8) 51 (2.0) 84 (3.3) 75 (3.0) 162 (6.4) 129 (5.1) 68 (2.7) 58 (2.3) 122 (4.8) 134 (5.3) 50 (2.0) 42 (1.7)
Average precipitation days (≥ 1 mm) 7 8 9 10 15 10 8 7 9 12 6 5

Monthly sunshine hours in Montezuma, Iowa, United States §

The sunniest months in Montezuma are June, July and August, when the sun shines an average of 11 hours 24 minutes a day.Least sunny months in Montezuma: January, February and December receive an average of 5 hours 48 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Montezuma, Iowa, 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 134 188 225 252 265 341 371 335 276 224 207 204
Mean daily daylight hours 9h 32m 10h 36m 11h 58m 13h 21m 14h 32m 15h 7m 14h 48m 13h 45m 12h 25m 11h 1m 9h 49m 9h 12m

Solar UV radiation in Montezuma, Iowa, United States §

Montezuma experiences the highest level of ultraviolet (UV) radiation in June, July and August, when the maximum UV index can reach values of 9 - 11, which corresponds to the Very High / Extreme category of sun exposure.January, November and December are in the Moderate exposure category. In these months, the maximum values of the UV index do not exceed 4. For more detailed information, check out our hourly Montezuma UV Index data.

Average daily maximum UV levels by month for Montezuma, Iowa, 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) 3 5 6 8 9 11 10 9 8 6 4 3