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Monthly climate in Terry, Montana, United States

Last updated: May 6, 2024

Under the Köppen–Geiger climate classification Terry features a cold semi-arid climate (BSk).Temperatures typically range between -9 °C (16 °F) and 24 °C (76 °F) through the year, but rarely can drop to -37 °C (-34 °F) or can rise to as high as 41 °C (106 °F).The average annual precipitation amounts to about 371 mm (14.6 inches) and receives 64 rainy days on the 1 mm (0.04 inches) threshold annually.Terry enjoys an average of 3159 hours of sunshine throughout the year, and daylight varies from 8 hours 35 minutes to 15 hours 47 minutes per day.

Monthly average temperatures in Terry, Montana, United States §

The warmest months in Terry are June, July and August, with daily mean temperatures ranging from 20 to 24 °C (69 - 76 °F) throughout the day. The coldest temperatures usually occur in January, February and December, when daily mean temperatures range from -9 to -4 °C (16 - 26 °F) throughout the day. On average each year, Terry experiences 80 days above 25 °C (77.0 °F) and 147 days below 0 °C (32.0 °F).

Monthly average temperatures with daily means, minimums and maximums for period, average high and low temperatures in Terry, 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 11°C
(52°F)		 16°C
(61°F)		 22°C
(73°F)		 28°C
(82°F)		 33°C
(92°F)		 39°C
(103°F)		 41°C
(106°F)		 41°C
(105°F)		 36°C
(98°F)		 32°C
(90°F)		 23°C
(74°F)		 22°C
(71°F)
Mean maximum 9°C
(48°F)		 11°C
(52°F)		 19°C
(66°F)		 24°C
(76°F)		 30°C
(87°F)		 33°C
(91°F)		 38°C
(100°F)		 38°C
(102°F)		 34°C
(94°F)		 26°C
(79°F)		 18°C
(64°F)		 14°C
(58°F)
Average high -1°C
(30°F)		 -3°C
(26°F)		 7°C
(44°F)		 12°C
(54°F)		 19°C
(67°F)		 27°C
(81°F)		 31°C
(89°F)		 30°C
(86°F)		 23°C
(74°F)		 13°C
(56°F)		 6°C
(44°F)		 2°C
(35°F)
Daily mean -6°C
(21°F)		 -9°C
(16°F)		 1°C
(33°F)		 6°C
(43°F)		 13°C
(56°F)		 20°C
(69°F)		 24°C
(76°F)		 22°C
(73°F)		 16°C
(62°F)		 7°C
(45°F)		 1°C
(34°F)		 -4°C
(26°F)
Average low -11°C
(13°F)		 -14°C
(8°F)		 -5°C
(23°F)		 -0°C
(32°F)		 7°C
(45°F)		 13°C
(56°F)		 17°C
(63°F)		 15°C
(59°F)		 10°C
(50°F)		 1°C
(35°F)		 -4°C
(25°F)		 -8°C
(18°F)
Mean minimum -28°C
(-18°F)		 -27°C
(-17°F)		 -18°C
(0°F)		 -10°C
(14°F)		 0°C
(32°F)		 8°C
(47°F)		 11°C
(51°F)		 9°C
(48°F)		 2°C
(35°F)		 -8°C
(17°F)		 -14°C
(7°F)		 -21°C
(-5°F)
Minimum -37°C
(-34°F)		 -35°C
(-31°F)		 -29°C
(-20°F)		 -18°C
(1°F)		 -3°C
(28°F)		 7°C
(45°F)		 8°C
(46°F)		 8°C
(47°F)		 -1°C
(30°F)		 -16°C
(3°F)		 -19°C
(-1°F)		 -30°C
(-22°F)

Compare climate in Terry with other places

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

Monthly average precipitation in Terry, Montana, United States §

Terry usually has the most precipitation in May, June and September, with an average of 7 rainy days and 51 mm (2.0 inches) of precipitation per month.The driest months in Terry are January, March and November. On average, 15 mm (0.6 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Terry, 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 (0.4) 24 (0.9) 17 (0.7) 36 (1.4) 53 (2.1) 46 (1.8) 32 (1.2) 29 (1.1) 55 (2.2) 35 (1.4) 17 (0.7) 17 (0.7)
Average precipitation days (≥ 1 mm) 3 6 4 7 9 8 4 5 5 5 4 4

Monthly sunshine hours in Terry, Montana, United States §

The sunniest months in Terry are June, July and August, when the sun shines an average of 11 hours 58 minutes a day.Least sunny months in Terry: January, November and December receive an average of 5 hours 44 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Terry, 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 150 196 247 271 314 371 387 341 275 224 194 183
Mean daily daylight hours 9h 0m 10h 19m 11h 57m 13h 37m 15h 3m 15h 47m 15h 23m 14h 6m 12h 29m 10h 49m 9h 21m 8h 35m

Solar UV radiation in Terry, Montana, United States §

Terry 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 Terry UV Index data.

Average daily maximum UV levels by month for Terry, 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