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Monthly climate in Sterling, Colorado, United States

Last updated: May 6, 2024

Under the Köppen–Geiger climate classification Sterling features a cold semi-arid climate (BSk).Temperatures typically range between -1 °C (31 °F) and 25 °C (77 °F) through the year, but rarely can drop to -34 °C (-28 °F) or can rise to as high as 40 °C (105 °F).The average annual precipitation amounts to about 425 mm (16.7 inches) and receives 69 rainy days on the 1 mm (0.04 inches) threshold annually.Sterling enjoys an average of 3364 hours of sunshine throughout the year, and daylight varies from 9 hours 18 minutes to 15 hours 1 minutes per day.

Monthly average temperatures in Sterling, Colorado, United States §

The warmest months in Sterling are June, July and August, with daily mean temperatures ranging from 22 to 25 °C (72 - 77 °F) throughout the day. The coldest temperatures usually occur in January, February and December, when daily mean temperatures range from -1 to 2 °C (31 - 35 °F) throughout the day. On average each year, Sterling experiences 111 days above 25 °C (77.0 °F) and 118 days below 0 °C (32.0 °F).

Monthly average temperatures with daily means, minimums and maximums for period, average high and low temperatures in Sterling, 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 18°C
(66°F)		 26°C
(79°F)		 28°C
(83°F)		 34°C
(93°F)		 35°C
(96°F)		 39°C
(103°F)		 40°C
(105°F)		 38°C
(100°F)		 38°C
(102°F)		 30°C
(87°F)		 28°C
(82°F)		 23°C
(74°F)
Mean maximum 17°C
(63°F)		 22°C
(71°F)		 25°C
(78°F)		 30°C
(86°F)		 32°C
(91°F)		 35°C
(94°F)		 38°C
(102°F)		 36°C
(97°F)		 38°C
(100°F)		 29°C
(85°F)		 25°C
(77°F)		 19°C
(67°F)
Average high 7°C
(45°F)		 7°C
(44°F)		 14°C
(57°F)		 18°C
(64°F)		 21°C
(71°F)		 29°C
(85°F)		 32°C
(91°F)		 31°C
(88°F)		 28°C
(82°F)		 18°C
(64°F)		 14°C
(57°F)		 9°C
(48°F)
Daily mean 0°C
(33°F)		 -1°C
(31°F)		 6°C
(43°F)		 10°C
(50°F)		 15°C
(59°F)		 22°C
(72°F)		 25°C
(77°F)		 23°C
(74°F)		 20°C
(68°F)		 10°C
(50°F)		 6°C
(43°F)		 2°C
(35°F)
Average low -5°C
(23°F)		 -7°C
(20°F)		 -1°C
(31°F)		 2°C
(36°F)		 8°C
(47°F)		 15°C
(58°F)		 18°C
(64°F)		 16°C
(61°F)		 12°C
(55°F)		 3°C
(38°F)		 -1°C
(31°F)		 -4°C
(25°F)
Mean minimum -18°C
(-0°F)		 -20°C
(-3°F)		 -11°C
(13°F)		 -8°C
(19°F)		 1°C
(35°F)		 8°C
(46°F)		 12°C
(54°F)		 11°C
(52°F)		 4°C
(39°F)		 -8°C
(17°F)		 -10°C
(15°F)		 -14°C
(8°F)
Minimum -25°C
(-13°F)		 -34°C
(-28°F)		 -21°C
(-6°F)		 -12°C
(11°F)		 -1°C
(30°F)		 6°C
(43°F)		 9°C
(48°F)		 8°C
(47°F)		 1°C
(34°F)		 -16°C
(4°F)		 -20°C
(-3°F)		 -18°C
(-1°F)

Compare climate in Sterling with other places

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

Monthly average precipitation in Sterling, Colorado, United States §

Sterling usually has the most precipitation in March, April and May, with an average of 9 rainy days and 71 mm (2.8 inches) of precipitation per month.The driest months in Sterling are January, November and December. On average, 12 mm (0.5 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Sterling, 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) 10 (0.4) 16 (0.6) 56 (2.2) 52 (2.1) 105 (4.1) 42 (1.7) 41 (1.6) 28 (1.1) 25 (1.0) 25 (1.0) 15 (0.6) 10 (0.4)
Average precipitation days (≥ 1 mm) 2 4 7 8 12 7 9 5 4 5 4 2

Monthly sunshine hours in Sterling, Colorado, United States §

The sunniest months in Sterling are June, July and August, when the sun shines an average of 11 hours 41 minutes a day.Least sunny months in Sterling: January, February and December receive an average of 6 hours 57 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Sterling, 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 181 221 266 289 298 360 370 344 297 260 243 230
Mean daily daylight hours 9h 37m 10h 39m 11h 58m 13h 19m 14h 27m 15h 1m 14h 42m 13h 41m 12h 24m 11h 3m 9h 53m 9h 18m

Solar UV radiation in Sterling, Colorado, United States §

Sterling experiences the highest level of ultraviolet (UV) radiation in June, July and August, when the maximum UV index can reach values of 10 - 11, which corresponds to the Very High / 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 4. For more detailed information, check out our hourly Sterling UV Index data.

Average daily maximum UV levels by month for Sterling, 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) 3 5 7 9 10 11 11 10 9 6 4 3