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Monthly climate in White Sulphur Springs, Montana, United States

Last updated: May 6, 2024

Under the Köppen–Geiger climate classification White Sulphur Springs features a cold semi-arid climate (BSk).Temperatures typically range between -10 °C (15 °F) and 19 °C (66 °F) through the year, but rarely can drop to -34 °C (-29 °F) or can rise to as high as 34 °C (93 °F).The average annual precipitation amounts to about 508 mm (20.0 inches) and receives 109 rainy days on the 1 mm (0.04 inches) threshold annually.White Sulphur Springs enjoys an average of 3122 hours of sunshine throughout the year, and daylight varies from 8 hours 37 minutes to 15 hours 45 minutes per day.

Monthly average temperatures in White Sulphur Springs, Montana, United States §

The warmest months in White Sulphur Springs are June, July and August, with daily mean temperatures ranging from 14 to 19 °C (57 - 66 °F) throughout the day. The coldest temperatures usually occur in January, February and December, when daily mean temperatures range from -10 to -8 °C (15 - 17 °F) throughout the day. On average each year, White Sulphur Springs experiences 44 days above 25 °C (77.0 °F) and 192 days below 0 °C (32.0 °F).

Monthly average temperatures with daily means, minimums and maximums for period, average high and low temperatures in White Sulphur Springs, 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 2°C
(37°F)		 7°C
(45°F)		 14°C
(58°F)		 21°C
(70°F)		 25°C
(78°F)		 32°C
(90°F)		 34°C
(93°F)		 34°C
(93°F)		 32°C
(89°F)		 25°C
(77°F)		 17°C
(63°F)		 13°C
(56°F)
Mean maximum 2°C
(35°F)		 5°C
(41°F)		 10°C
(51°F)		 19°C
(66°F)		 23°C
(73°F)		 27°C
(80°F)		 32°C
(89°F)		 32°C
(90°F)		 30°C
(85°F)		 20°C
(68°F)		 10°C
(51°F)		 5°C
(42°F)
Average high -5°C
(24°F)		 -5°C
(23°F)		 3°C
(37°F)		 7°C
(45°F)		 14°C
(58°F)		 20°C
(69°F)		 26°C
(80°F)		 25°C
(78°F)		 19°C
(67°F)		 9°C
(48°F)		 2°C
(35°F)		 -4°C
(26°F)
Daily mean -9°C
(16°F)		 -10°C
(15°F)		 -2°C
(28°F)		 1°C
(35°F)		 8°C
(47°F)		 14°C
(57°F)		 19°C
(66°F)		 18°C
(64°F)		 12°C
(55°F)		 3°C
(38°F)		 -3°C
(26°F)		 -8°C
(17°F)
Average low -13°C
(8°F)		 -14°C
(7°F)		 -7°C
(19°F)		 -4°C
(25°F)		 2°C
(36°F)		 7°C
(45°F)		 10°C
(50°F)		 9°C
(49°F)		 5°C
(42°F)		 -3°C
(28°F)		 -9°C
(17°F)		 -14°C
(8°F)
Mean minimum -26°C
(-14°F)		 -27°C
(-17°F)		 -20°C
(-3°F)		 -15°C
(6°F)		 -5°C
(23°F)		 0°C
(33°F)		 4°C
(39°F)		 4°C
(39°F)		 -2°C
(28°F)		 -15°C
(6°F)		 -19°C
(-2°F)		 -24°C
(-11°F)
Minimum -29°C
(-20°F)		 -34°C
(-29°F)		 -28°C
(-17°F)		 -24°C
(-11°F)		 -8°C
(18°F)		 -1°C
(31°F)		 1°C
(34°F)		 1°C
(35°F)		 -4°C
(25°F)		 -25°C
(-13°F)		 -25°C
(-12°F)		 -27°C
(-16°F)

Compare climate in White Sulphur Springs with other places

Compare temperature, precipitation, sunshine, UV index in White Sulphur Springs, Montana, United States with other places around the world.

Monthly average precipitation in White Sulphur Springs, Montana, United States §

White Sulphur Springs usually has the most precipitation in April, May and June, with an average of 12 rainy days and 69 mm (2.7 inches) of precipitation per month.The driest months in White Sulphur Springs are January, July and August. On average, 23 mm (0.9 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in White Sulphur Springs, 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) 25 (1.0) 52 (2.0) 30 (1.2) 63 (2.5) 72 (2.8) 72 (2.8) 20 (0.8) 25 (1.0) 39 (1.5) 40 (1.6) 37 (1.4) 33 (1.3)
Average precipitation days (≥ 1 mm) 6 13 9 13 14 9 5 5 6 11 9 9

Monthly sunshine hours in White Sulphur Springs, Montana, United States §

The sunniest months in White Sulphur Springs are June, July and August, when the sun shines an average of 11 hours 51 minutes a day.Least sunny months in White Sulphur Springs: January, February and December receive an average of 5 hours 28 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in White Sulphur Springs, 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 147 176 263 273 307 350 392 346 272 231 185 173
Mean daily daylight hours 9h 2m 10h 20m 11h 57m 13h 37m 15h 2m 15h 45m 15h 21m 14h 4m 12h 28m 10h 49m 9h 22m 8h 37m

Solar UV radiation in White Sulphur Springs, Montana, United States §

White Sulphur Springs 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 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 White Sulphur Springs UV Index data.

Average daily maximum UV levels by month for White Sulphur Springs, 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) 3 4 6 8 9 11 10 9 8 5 3 2