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Monthly climate in Frenchtown, Montana, United States

Last updated: May 6, 2024

Under the Köppen–Geiger climate classification Frenchtown features a humid continental climate (Dfb).Temperatures typically range between -6 °C (22 °F) and 19 °C (67 °F) through the year, but rarely can drop to -32 °C (-24 °F) or can rise to as high as 37 °C (99 °F).The average annual precipitation amounts to about 763 mm (30.1 inches) and receives 147 rainy days on the 1 mm (0.04 inches) threshold annually.Frenchtown enjoys an average of 2910 hours of sunshine throughout the year, and daylight varies from 8 hours 33 minutes to 15 hours 49 minutes per day.

Monthly average temperatures in Frenchtown, Montana, United States §

The warmest months in Frenchtown are June, July and August, with daily mean temperatures ranging from 14 to 19 °C (58 - 67 °F) throughout the day. The coldest temperatures usually occur in January, February and December, when daily mean temperatures range from -6 to -3 °C (22 - 26 °F) throughout the day. On average each year, Frenchtown experiences 48 days above 25 °C (77.0 °F) and 172 days below 0 °C (32.0 °F).

Monthly average temperatures with daily means, minimums and maximums for period, average high and low temperatures in Frenchtown, 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 6°C
(44°F)		 13°C
(55°F)		 17°C
(63°F)		 23°C
(74°F)		 28°C
(83°F)		 36°C
(96°F)		 36°C
(97°F)		 37°C
(99°F)		 32°C
(90°F)		 25°C
(78°F)		 14°C
(58°F)		 14°C
(57°F)
Mean maximum 5°C
(41°F)		 8°C
(46°F)		 13°C
(55°F)		 19°C
(66°F)		 25°C
(77°F)		 27°C
(81°F)		 34°C
(93°F)		 34°C
(94°F)		 30°C
(87°F)		 21°C
(70°F)		 12°C
(53°F)		 8°C
(47°F)
Average high -1°C
(31°F)		 -2°C
(29°F)		 5°C
(41°F)		 9°C
(48°F)		 15°C
(60°F)		 20°C
(69°F)		 27°C
(82°F)		 26°C
(80°F)		 20°C
(68°F)		 10°C
(51°F)		 4°C
(39°F)		 0°C
(32°F)
Daily mean -4°C
(24°F)		 -6°C
(22°F)		 -0°C
(32°F)		 3°C
(38°F)		 9°C
(49°F)		 14°C
(58°F)		 19°C
(67°F)		 19°C
(66°F)		 13°C
(55°F)		 5°C
(41°F)		 -0°C
(32°F)		 -3°C
(26°F)
Average low -8°C
(18°F)		 -10°C
(14°F)		 -5°C
(24°F)		 -2°C
(29°F)		 3°C
(38°F)		 8°C
(46°F)		 11°C
(52°F)		 10°C
(51°F)		 6°C
(43°F)		 -1°C
(31°F)		 -4°C
(25°F)		 -7°C
(20°F)
Mean minimum -19°C
(-2°F)		 -24°C
(-11°F)		 -15°C
(6°F)		 -8°C
(19°F)		 -3°C
(26°F)		 1°C
(34°F)		 5°C
(42°F)		 5°C
(41°F)		 -1°C
(30°F)		 -11°C
(13°F)		 -12°C
(11°F)		 -18°C
(0°F)
Minimum -28°C
(-19°F)		 -32°C
(-24°F)		 -25°C
(-12°F)		 -11°C
(12°F)		 -5°C
(23°F)		 -0°C
(32°F)		 2°C
(36°F)		 4°C
(39°F)		 -4°C
(25°F)		 -22°C
(-7°F)		 -15°C
(5°F)		 -25°C
(-14°F)

Compare climate in Frenchtown with other places

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

Monthly average precipitation in Frenchtown, Montana, United States §

Frenchtown usually has the most precipitation in February, April and May, with an average of 17 rainy days and 90 mm (3.5 inches) of precipitation per month.The driest months in Frenchtown are July, August and September. On average, 30 mm (1.2 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Frenchtown, 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) 51 (2.0) 103 (4.1) 61 (2.4) 80 (3.2) 85 (3.4) 75 (3.0) 22 (0.9) 29 (1.2) 38 (1.5) 72 (2.8) 73 (2.9) 72 (2.9)
Average precipitation days (≥ 1 mm) 11 19 15 16 16 12 5 5 7 12 14 15

Monthly sunshine hours in Frenchtown, Montana, United States §

The sunniest months in Frenchtown are June, July and August, when the sun shines an average of 12 hours 1 minutes a day.Least sunny months in Frenchtown: January, February and December receive an average of 4 hours 0 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Frenchtown, 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 107 132 229 256 311 344 407 354 276 216 150 123
Mean daily daylight hours 8h 59m 10h 18m 11h 57m 13h 38m 15h 5m 15h 49m 15h 24m 14h 6m 12h 29m 10h 48m 9h 19m 8h 33m

Solar UV radiation in Frenchtown, Montana, United States §

Frenchtown experiences the highest level of ultraviolet (UV) radiation in May, 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 Frenchtown UV Index data.

Average daily maximum UV levels by month for Frenchtown, 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 6 7 9 9 10 9 7 5 3 2