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Monthly climate in Basalt, Colorado, United States

Last updated: May 6, 2024

Under the Köppen–Geiger climate classification Basalt features a subarctic climate (Dfc).Temperatures typically range between -9 °C (17 °F) and 16 °C (60 °F) through the year, but rarely can drop to -31 °C (-24 °F) or can rise to as high as 28 °C (82 °F).The average annual precipitation amounts to about 687 mm (27.0 inches) and receives 125 rainy days on the 1 mm (0.04 inches) threshold annually.Basalt enjoys an average of 3557 hours of sunshine throughout the year, and daylight varies from 9 hours 25 minutes to 14 hours 53 minutes per day.

Monthly average temperatures in Basalt, Colorado, United States §

The warmest months in Basalt are June, July and August, with daily mean temperatures ranging from 12 to 16 °C (53 - 60 °F) throughout the day. The coldest temperatures usually occur in January, February and December, when daily mean temperatures range from -9 to -7 °C (17 - 20 °F) throughout the day. On average each year, Basalt experiences 12 days above 25 °C (77.0 °F) and 227 days below 0 °C (32.0 °F).

Monthly average temperatures with daily means, minimums and maximums for period, average high and low temperatures in Basalt, Colorado, 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 7°C
(44°F)		 11°C
(52°F)		 12°C
(54°F)		 13°C
(56°F)		 22°C
(71°F)		 28°C
(82°F)		 28°C
(82°F)		 27°C
(81°F)		 26°C
(80°F)		 21°C
(70°F)		 14°C
(57°F)		 9°C
(48°F)
Mean maximum 4°C
(40°F)		 6°C
(43°F)		 10°C
(50°F)		 13°C
(55°F)		 17°C
(64°F)		 23°C
(73°F)		 27°C
(81°F)		 26°C
(79°F)		 25°C
(78°F)		 18°C
(65°F)		 10°C
(50°F)		 6°C
(44°F)
Average high -2°C
(29°F)		 -1°C
(30°F)		 3°C
(38°F)		 6°C
(43°F)		 11°C
(52°F)		 20°C
(67°F)		 23°C
(74°F)		 23°C
(73°F)		 19°C
(66°F)		 9°C
(49°F)		 4°C
(39°F)		 -1°C
(30°F)
Daily mean -8°C
(18°F)		 -7°C
(20°F)		 -2°C
(28°F)		 0°C
(33°F)		 4°C
(40°F)		 12°C
(53°F)		 16°C
(60°F)		 15°C
(59°F)		 11°C
(52°F)		 2°C
(36°F)		 -4°C
(24°F)		 -9°C
(17°F)
Average low -13°C
(8°F)		 -12°C
(11°F)		 -8°C
(19°F)		 -5°C
(23°F)		 -2°C
(28°F)		 3°C
(37°F)		 8°C
(46°F)		 7°C
(44°F)		 3°C
(38°F)		 -5°C
(24°F)		 -12°C
(10°F)		 -15°C
(5°F)
Mean minimum -23°C
(-8°F)		 -21°C
(-6°F)		 -17°C
(2°F)		 -14°C
(7°F)		 -7°C
(19°F)		 -3°C
(28°F)		 2°C
(36°F)		 3°C
(37°F)		 -4°C
(25°F)		 -21°C
(-5°F)		 -26°C
(-14°F)		 -25°C
(-14°F)
Minimum -24°C
(-11°F)		 -24°C
(-10°F)		 -20°C
(-4°F)		 -17°C
(1°F)		 -11°C
(12°F)		 -5°C
(23°F)		 -0°C
(32°F)		 1°C
(34°F)		 -7°C
(19°F)		 -31°C
(-24°F)		 -27°C
(-16°F)		 -29°C
(-20°F)

Compare climate in Basalt with other places

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

Monthly average precipitation in Basalt, Colorado, United States §

Basalt usually has the most precipitation in February, March and December, with an average of 13 rainy days and 78 mm (3.1 inches) of precipitation per month.The driest months in Basalt are June, August and September. On average, 33 mm (1.3 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Basalt, Colorado, 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) 61 (2.4) 81 (3.2) 85 (3.3) 66 (2.6) 61 (2.4) 32 (1.3) 46 (1.8) 30 (1.2) 35 (1.4) 67 (2.6) 53 (2.1) 69 (2.7)
Average precipitation days (≥ 1 mm) 11 15 14 13 11 6 10 7 7 10 9 12

Monthly sunshine hours in Basalt, Colorado, United States §

The sunniest months in Basalt are May, June and July, when the sun shines an average of 12 hours 21 minutes a day.Least sunny months in Basalt: January, February and December receive an average of 6 hours 42 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Basalt, Colorado, 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 168 221 285 319 365 384 387 360 317 283 242 219
Mean daily daylight hours 9h 44m 10h 43m 11h 58m 13h 16m 14h 20m 14h 53m 14h 35m 13h 37m 12h 23m 11h 6m 9h 59m 9h 25m

Solar UV radiation in Basalt, Colorado, United States §

Basalt experiences the highest level of ultraviolet (UV) radiation in May, June and July, when the maximum UV index can reach values of 13 - 14, which corresponds to the 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 5. For more detailed information, check out our hourly Basalt UV Index data.

Average daily maximum UV levels by month for Basalt, Colorado, 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) 4 6 9 12 13 14 13 12 10 7 5 4