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Monthly climate in Anamosa, Iowa, United States

Last updated: March 2, 2024

Under the Köppen–Geiger climate classification Anamosa features a humid continental climate (Dfa). Temperatures typically range between -6 °C (21 °F) and 24 °C (76 °F) through the year, but rarely can drop to -34 °C (-28 °F) or can rise to as high as 36 °C (96 °F). The average annual precipitation amounts to about 1049 mm (41.3 inches) and receives 113 rainy days on the 1 mm (0.04 inches) threshold annually. Anamosa enjoys an average of 2931 hours of sunshine throughout the year, and daylight varies from 9 hours 8 minutes to 15 hours 11 minutes per day.

Monthly average temperatures in Anamosa, Iowa, United States §

The warmest months in Anamosa are June, July and August, with daily mean temperatures ranging from 22 to 24 °C (72 - 76 °F) throughout the day. The coldest temperatures usually occur in January, February and December, when daily mean temperatures range from -6 to -1 °C (21 - 30 °F) throughout the day. On average each year, Anamosa experiences 88 days above 25 °C (77.0 °F) and 122 days below 0 °C (32.0 °F).

Monthly average temperatures with daily means, minimums and maximums for period, average high and low temperatures in Anamosa, 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 12°C
(54°F)		 22°C
(71°F)		 23°C
(74°F)		 28°C
(83°F)		 34°C
(94°F)		 35°C
(95°F)		 36°C
(96°F)		 34°C
(93°F)		 33°C
(92°F)		 31°C
(88°F)		 23°C
(74°F)		 22°C
(71°F)
Mean maximum 8°C
(47°F)		 13°C
(56°F)		 19°C
(67°F)		 26°C
(79°F)		 31°C
(89°F)		 33°C
(91°F)		 33°C
(92°F)		 32°C
(90°F)		 32°C
(89°F)		 30°C
(86°F)		 18°C
(64°F)		 16°C
(60°F)
Average high -2°C
(28°F)		 -0°C
(32°F)		 8°C
(47°F)		 14°C
(58°F)		 21°C
(71°F)		 27°C
(82°F)		 29°C
(84°F)		 27°C
(82°F)		 25°C
(77°F)		 16°C
(62°F)		 8°C
(46°F)		 4°C
(39°F)
Daily mean -6°C
(21°F)		 -5°C
(23°F)		 3°C
(38°F)		 9°C
(48°F)		 16°C
(62°F)		 23°C
(73°F)		 24°C
(76°F)		 22°C
(72°F)		 19°C
(67°F)		 11°C
(53°F)		 3°C
(38°F)		 -1°C
(30°F)
Average low -10°C
(14°F)		 -10°C
(15°F)		 -1°C
(30°F)		 3°C
(38°F)		 11°C
(53°F)		 17°C
(63°F)		 19°C
(67°F)		 17°C
(62°F)		 14°C
(57°F)		 7°C
(44°F)		 -2°C
(29°F)		 -5°C
(23°F)
Mean minimum -25°C
(-13°F)		 -24°C
(-10°F)		 -14°C
(7°F)		 -6°C
(22°F)		 3°C
(37°F)		 12°C
(53°F)		 14°C
(57°F)		 12°C
(53°F)		 6°C
(43°F)		 -3°C
(26°F)		 -11°C
(13°F)		 -15°C
(5°F)
Minimum -33°C
(-26°F)		 -34°C
(-28°F)		 -24°C
(-10°F)		 -10°C
(14°F)		 -1°C
(31°F)		 9°C
(48°F)		 12°C
(54°F)		 11°C
(51°F)		 2°C
(36°F)		 -6°C
(22°F)		 -16°C
(3°F)		 -22°C
(-8°F)

Compare climate in Anamosa with other places

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

Monthly average precipitation in Anamosa, Iowa, United States §

Anamosa usually has the most precipitation in May, September and October, with an average of 12 rainy days and 134 mm (5.3 inches) of precipitation per month. The driest months in Anamosa are January, November and December. On average, 48 mm (1.9 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Anamosa, 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) 48 (1.9) 59 (2.3) 73 (2.9) 84 (3.3) 143 (5.6) 120 (4.7) 79 (3.1) 88 (3.5) 130 (5.1) 130 (5.1) 49 (1.9) 46 (1.8)
Average precipitation days (≥ 1 mm) 8 8 8 11 15 10 10 10 10 11 7 5

Monthly sunshine hours in Anamosa, Iowa, United States §

The sunniest months in Anamosa are June, July and August, when the sun shines an average of 11 hours 2 minutes a day. Least sunny months in Anamosa: January, February and December receive an average of 5 hours 38 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Anamosa, 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 131 187 224 237 256 328 359 327 270 212 200 194
Mean daily daylight hours 9h 29m 10h 35m 11h 58m 13h 23m 14h 35m 15h 11m 14h 51m 13h 47m 12h 25m 11h 0m 9h 46m 9h 8m

Solar UV radiation in Anamosa, Iowa, United States §

Anamosa 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 Anamosa UV Index data.

Average daily maximum UV levels by month for Anamosa, 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

Detailed Monthly Weather Insights for Anamosa, Iowa, United States

Discover in-depth weather details for every month in Anamosa. 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 Anamosa'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.