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Monthly climate in Lewistown, Missouri, United States

Last updated: March 2, 2024

Under the Köppen–Geiger climate classification Lewistown features a humid continental climate (Dfa). Temperatures typically range between -2 °C (29 °F) and 26 °C (79 °F) through the year, but rarely can drop to -27 °C (-17 °F) or can rise to as high as 36 °C (97 °F). The average annual precipitation amounts to about 1085 mm (42.7 inches) and receives 112 rainy days on the 1 mm (0.04 inches) threshold annually. Lewistown enjoys an average of 2985 hours of sunshine throughout the year, and daylight varies from 9 hours 21 minutes to 14 hours 57 minutes per day.

Monthly average temperatures in Lewistown, Missouri, United States §

The warmest months in Lewistown are June, July and August, with daily mean temperatures ranging from 24 to 26 °C (76 - 79 °F) throughout the day. The coldest temperatures usually occur in January, February and December, when daily mean temperatures range from -2 to 2 °C (29 - 36 °F) throughout the day. On average each year, Lewistown experiences 112 days above 25 °C (77.0 °F) and 93 days below 0 °C (32.0 °F).

Monthly average temperatures with daily means, minimums and maximums for period, average high and low temperatures in Lewistown, Missouri, 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 16°C
(61°F)		 24°C
(75°F)		 25°C
(77°F)		 29°C
(85°F)		 35°C
(95°F)		 36°C
(97°F)		 36°C
(97°F)		 36°C
(97°F)		 35°C
(95°F)		 33°C
(91°F)		 24°C
(75°F)		 23°C
(74°F)
Mean maximum 14°C
(57°F)		 18°C
(64°F)		 22°C
(71°F)		 28°C
(84°F)		 33°C
(91°F)		 34°C
(93°F)		 35°C
(96°F)		 34°C
(94°F)		 33°C
(92°F)		 31°C
(88°F)		 20°C
(68°F)		 19°C
(66°F)
Average high 2°C
(36°F)		 5°C
(40°F)		 12°C
(53°F)		 17°C
(63°F)		 24°C
(75°F)		 29°C
(85°F)		 31°C
(88°F)		 29°C
(85°F)		 27°C
(81°F)		 19°C
(66°F)		 11°C
(51°F)		 7°C
(45°F)
Daily mean -2°C
(29°F)		 -1°C
(31°F)		 7°C
(44°F)		 11°C
(53°F)		 18°C
(66°F)		 24°C
(76°F)		 26°C
(79°F)		 24°C
(76°F)		 21°C
(71°F)		 14°C
(57°F)		 5°C
(42°F)		 2°C
(36°F)
Average low -6°C
(21°F)		 -6°C
(22°F)		 2°C
(36°F)		 6°C
(43°F)		 14°C
(57°F)		 19°C
(67°F)		 21°C
(70°F)		 19°C
(66°F)		 16°C
(61°F)		 9°C
(48°F)		 1°C
(33°F)		 -2°C
(28°F)
Mean minimum -20°C
(-3°F)		 -19°C
(-3°F)		 -10°C
(15°F)		 -3°C
(27°F)		 5°C
(41°F)		 14°C
(57°F)		 16°C
(61°F)		 13°C
(56°F)		 8°C
(46°F)		 -2°C
(29°F)		 -9°C
(16°F)		 -12°C
(10°F)
Minimum -27°C
(-16°F)		 -27°C
(-17°F)		 -17°C
(2°F)		 -8°C
(18°F)		 2°C
(35°F)		 10°C
(51°F)		 15°C
(59°F)		 12°C
(54°F)		 5°C
(41°F)		 -5°C
(23°F)		 -15°C
(6°F)		 -20°C
(-4°F)

Compare climate in Lewistown with other places

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

Monthly average precipitation in Lewistown, Missouri, United States §

Lewistown usually has the most precipitation in March, May and October, with an average of 12 rainy days and 135 mm (5.3 inches) of precipitation per month. The driest months in Lewistown are February, November and December. On average, 50 mm (2.0 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Lewistown, Missouri, 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) 59 (2.3) 57 (2.2) 115 (4.5) 100 (4.0) 177 (7.0) 105 (4.1) 91 (3.6) 93 (3.7) 81 (3.2) 114 (4.5) 52 (2.1) 41 (1.6)
Average precipitation days (≥ 1 mm) 7 10 11 11 15 9 9 9 7 11 8 5

Monthly sunshine hours in Lewistown, Missouri, United States §

The sunniest months in Lewistown are June, July and August, when the sun shines an average of 11 hours 5 minutes a day. Least sunny months in Lewistown: 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 Lewistown, Missouri, 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 124 181 211 245 276 332 354 333 282 228 207 206
Mean daily daylight hours 9h 40m 10h 41m 11h 58m 13h 17m 14h 24m 14h 57m 14h 39m 13h 40m 12h 23m 11h 5m 9h 56m 9h 21m

Solar UV radiation in Lewistown, Missouri, United States §

Lewistown experiences the highest level of ultraviolet (UV) radiation in May, June and August, when the maximum UV index can reach values of 10 - 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 Lewistown UV Index data.

Average daily maximum UV levels by month for Lewistown, Missouri, 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 7 9 10 11 10 10 8 6 4 3

Detailed Monthly Weather Insights for Lewistown, Missouri, United States

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