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Monthly climate in Merrillan, Wisconsin, United States

Last updated: March 2, 2024

Under the Köppen–Geiger climate classification Merrillan features a humid continental climate (Dfb). Temperatures typically range between -8 °C (18 °F) and 22 °C (73 °F) through the year, but rarely can drop to -34 °C (-29 °F) or can rise to as high as 35 °C (94 °F). The average annual precipitation amounts to about 1067 mm (42.0 inches) and receives 118 rainy days on the 1 mm (0.04 inches) threshold annually. Merrillan enjoys an average of 2856 hours of sunshine throughout the year, and daylight varies from 8 hours 52 minutes to 15 hours 28 minutes per day.

Monthly average temperatures in Merrillan, Wisconsin, United States §

The warmest months in Merrillan are June, July and August, with daily mean temperatures ranging from 20 to 22 °C (69 - 73 °F) throughout the day. The coldest temperatures usually occur in January, February and December, when daily mean temperatures range from -8 to -4 °C (18 - 25 °F) throughout the day. On average each year, Merrillan experiences 64 days above 25 °C (77.0 °F) and 139 days below 0 °C (32.0 °F).

Monthly average temperatures with daily means, minimums and maximums for period, average high and low temperatures in Merrillan, Wisconsin, 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 8°C
(47°F)		 16°C
(61°F)		 19°C
(67°F)		 28°C
(83°F)		 35°C
(94°F)		 34°C
(94°F)		 33°C
(91°F)		 33°C
(91°F)		 33°C
(92°F)		 28°C
(82°F)		 23°C
(73°F)		 16°C
(61°F)
Mean maximum 5°C
(42°F)		 10°C
(50°F)		 16°C
(61°F)		 23°C
(74°F)		 31°C
(88°F)		 32°C
(90°F)		 32°C
(90°F)		 31°C
(88°F)		 30°C
(86°F)		 26°C
(79°F)		 15°C
(60°F)		 11°C
(53°F)
Average high -4°C
(25°F)		 -2°C
(28°F)		 6°C
(42°F)		 11°C
(53°F)		 20°C
(68°F)		 25°C
(78°F)		 27°C
(81°F)		 26°C
(78°F)		 22°C
(73°F)		 14°C
(57°F)		 5°C
(41°F)		 -0°C
(32°F)
Daily mean -8°C
(18°F)		 -7°C
(19°F)		 1°C
(34°F)		 6°C
(44°F)		 15°C
(58°F)		 20°C
(69°F)		 22°C
(73°F)		 20°C
(69°F)		 17°C
(63°F)		 9°C
(49°F)		 1°C
(34°F)		 -4°C
(25°F)
Average low -12°C
(10°F)		 -13°C
(9°F)		 -3°C
(26°F)		 1°C
(35°F)		 9°C
(49°F)		 15°C
(60°F)		 18°C
(64°F)		 15°C
(60°F)		 12°C
(54°F)		 5°C
(42°F)		 -3°C
(27°F)		 -8°C
(18°F)
Mean minimum -27°C
(-16°F)		 -26°C
(-15°F)		 -16°C
(3°F)		 -8°C
(18°F)		 1°C
(35°F)		 10°C
(51°F)		 13°C
(56°F)		 10°C
(50°F)		 5°C
(41°F)		 -3°C
(26°F)		 -12°C
(12°F)		 -21°C
(-6°F)
Minimum -32°C
(-26°F)		 -34°C
(-29°F)		 -25°C
(-14°F)		 -16°C
(3°F)		 -1°C
(31°F)		 7°C
(45°F)		 12°C
(54°F)		 9°C
(48°F)		 1°C
(34°F)		 -6°C
(21°F)		 -16°C
(4°F)		 -31°C
(-23°F)

Compare climate in Merrillan with other places

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

Monthly average precipitation in Merrillan, Wisconsin, United States §

Merrillan usually has the most precipitation in May, June and August, with an average of 12 rainy days and 134 mm (5.3 inches) of precipitation per month. The driest months in Merrillan are January, February and December. On average, 45 mm (1.8 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Merrillan, Wisconsin, 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) 33 (1.3) 52 (2.1) 56 (2.2) 95 (3.8) 130 (5.1) 135 (5.3) 112 (4.4) 136 (5.4) 97 (3.8) 119 (4.7) 53 (2.1) 50 (2.0)
Average precipitation days (≥ 1 mm) 6 8 8 12 13 13 10 12 10 12 6 8

Monthly sunshine hours in Merrillan, Wisconsin, United States §

The sunniest months in Merrillan are June, July and August, when the sun shines an average of 10 hours 56 minutes a day. Least sunny months in Merrillan: January, November and December receive an average of 5 hours 3 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Merrillan, Wisconsin, 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 118 197 233 230 272 331 357 318 254 194 183 163
Mean daily daylight hours 9h 15m 10h 27m 11h 57m 13h 30m 14h 48m 15h 28m 15h 6m 13h 56m 12h 27m 10h 55m 9h 34m 8h 52m

Solar UV radiation in Merrillan, Wisconsin, United States §

Merrillan experiences the highest level of ultraviolet (UV) radiation in June, July and August, when the maximum UV index can reach values of 9 - 10, which corresponds to the Very High category of sun exposure. January, November and December are in the Low / Moderate exposure category. In these months, the maximum values of the UV index do not exceed 3. For more detailed information, check out our hourly Merrillan UV Index data.

Average daily maximum UV levels by month for Merrillan, Wisconsin, 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) 2 4 5 8 8 10 10 9 7 5 3 2

Detailed Monthly Weather Insights for Merrillan, Wisconsin, United States

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