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Monthly climate in Miles City, Montana, United States

Last updated: May 6, 2024

Under the Köppen–Geiger climate classification Miles City features a cold semi-arid climate (BSk).Temperatures typically range between -8 °C (18 °F) and 25 °C (77 °F) through the year, but rarely can drop to -36 °C (-32 °F) or can rise to as high as 41 °C (107 °F).The average annual precipitation amounts to about 365 mm (14.4 inches) and receives 68 rainy days on the 1 mm (0.04 inches) threshold annually.Miles City enjoys an average of 3170 hours of sunshine throughout the year, and daylight varies from 8 hours 38 minutes to 15 hours 43 minutes per day.

Monthly average temperatures in Miles City, Montana, United States §

The warmest months in Miles City are June, July and August, with daily mean temperatures ranging from 21 to 25 °C (69 - 77 °F) throughout the day. The coldest temperatures usually occur in January, February and December, when daily mean temperatures range from -8 to -3 °C (18 - 27 °F) throughout the day. On average each year, Miles City experiences 82 days above 25 °C (77.0 °F) and 143 days below 0 °C (32.0 °F).

Monthly average temperatures with daily means, minimums and maximums for period, average high and low temperatures in Miles City, Montana, 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)		 18°C
(65°F)		 23°C
(74°F)		 28°C
(82°F)		 33°C
(92°F)		 41°C
(105°F)		 41°C
(107°F)		 41°C
(106°F)		 37°C
(99°F)		 32°C
(90°F)		 24°C
(76°F)		 22°C
(72°F)
Mean maximum 9°C
(49°F)		 13°C
(55°F)		 20°C
(68°F)		 25°C
(78°F)		 31°C
(87°F)		 33°C
(92°F)		 38°C
(101°F)		 39°C
(102°F)		 35°C
(95°F)		 27°C
(80°F)		 19°C
(66°F)		 15°C
(59°F)
Average high -1°C
(31°F)		 -3°C
(28°F)		 7°C
(45°F)		 13°C
(55°F)		 20°C
(68°F)		 27°C
(81°F)		 32°C
(90°F)		 30°C
(87°F)		 24°C
(75°F)		 14°C
(57°F)		 7°C
(45°F)		 2°C
(36°F)
Daily mean -6°C
(22°F)		 -8°C
(18°F)		 1°C
(34°F)		 6°C
(44°F)		 13°C
(57°F)		 21°C
(69°F)		 25°C
(77°F)		 23°C
(73°F)		 17°C
(63°F)		 7°C
(46°F)		 2°C
(35°F)		 -3°C
(27°F)
Average low -10°C
(14°F)		 -13°C
(9°F)		 -5°C
(24°F)		 0°C
(33°F)		 7°C
(45°F)		 14°C
(57°F)		 17°C
(63°F)		 15°C
(60°F)		 10°C
(51°F)		 2°C
(35°F)		 -3°C
(26°F)		 -7°C
(19°F)
Mean minimum -27°C
(-17°F)		 -27°C
(-16°F)		 -17°C
(2°F)		 -10°C
(15°F)		 1°C
(34°F)		 8°C
(47°F)		 11°C
(52°F)		 9°C
(49°F)		 2°C
(36°F)		 -8°C
(18°F)		 -14°C
(8°F)		 -20°C
(-4°F)
Minimum -36°C
(-32°F)		 -33°C
(-27°F)		 -30°C
(-21°F)		 -19°C
(-1°F)		 -2°C
(30°F)		 7°C
(44°F)		 8°C
(46°F)		 8°C
(48°F)		 -0°C
(32°F)		 -16°C
(3°F)		 -19°C
(-2°F)		 -31°C
(-23°F)

Compare climate in Miles City with other places

Compare temperature, precipitation, sunshine, UV index in Miles City, Montana, United States with other places around the world.

Monthly average precipitation in Miles City, Montana, United States §

Miles City usually has the most precipitation in May, June and September, with an average of 7 rainy days and 48 mm (1.9 inches) of precipitation per month.The driest months in Miles City are January, November and December. On average, 16 mm (0.6 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Miles City, Montana, 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) 11 (0.5) 26 (1.0) 20 (0.8) 40 (1.6) 48 (1.9) 45 (1.8) 29 (1.1) 24 (0.9) 51 (2.0) 35 (1.4) 18 (0.7) 19 (0.7)
Average precipitation days (≥ 1 mm) 3 7 5 7 9 8 5 5 5 6 4 4

Monthly sunshine hours in Miles City, Montana, United States §

The sunniest months in Miles City are June, July and August, when the sun shines an average of 11 hours 58 minutes a day.Least sunny months in Miles City: January, February and December receive an average of 5 hours 55 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Miles City, Montana, 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 151 199 248 268 312 370 388 341 278 222 199 189
Mean daily daylight hours 9h 3m 10h 20m 11h 57m 13h 36m 15h 1m 15h 43m 15h 20m 14h 4m 12h 28m 10h 50m 9h 23m 8h 38m

Solar UV radiation in Miles City, Montana, United States §

Miles City experiences the highest level of ultraviolet (UV) radiation in April, June and July, 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 Miles City UV Index data.

Average daily maximum UV levels by month for Miles City, Montana, 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 9 9 10 10 9 8 5 3 2