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Monthly climate in Northglenn, Colorado, United States

Last updated: May 6, 2024

Under the Köppen–Geiger climate classification Northglenn features a humid continental climate (Dfb).Temperatures typically range between -2 °C (30 °F) and 23 °C (74 °F) through the year, but rarely can drop to -24 °C (-12 °F) or can rise to as high as 38 °C (100 °F).The average annual precipitation amounts to about 493 mm (19.4 inches) and receives 86 rainy days on the 1 mm (0.04 inches) threshold annually.Northglenn enjoys an average of 3515 hours of sunshine throughout the year, and daylight varies from 9 hours 22 minutes to 14 hours 56 minutes per day.

Monthly average temperatures in Northglenn, Colorado, United States §

The warmest months in Northglenn are June, July and August, with daily mean temperatures ranging from 20 to 23 °C (69 - 74 °F) throughout the day. The coldest temperatures usually occur in January, February and December, when daily mean temperatures range from -2 to 0 °C (30 - 33 °F) throughout the day. On average each year, Northglenn experiences 102 days above 25 °C (77.0 °F) and 130 days below 0 °C (32.0 °F).

Monthly average temperatures with daily means, minimums and maximums for period, average high and low temperatures in Northglenn, 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
(65°F)		 25°C
(77°F)		 27°C
(80°F)		 29°C
(85°F)		 31°C
(89°F)		 38°C
(100°F)		 37°C
(99°F)		 36°C
(97°F)		 37°C
(98°F)		 30°C
(86°F)		 25°C
(78°F)		 22°C
(71°F)
Mean maximum 15°C
(59°F)		 19°C
(66°F)		 23°C
(74°F)		 27°C
(81°F)		 30°C
(86°F)		 33°C
(91°F)		 36°C
(98°F)		 35°C
(95°F)		 36°C
(97°F)		 28°C
(83°F)		 23°C
(74°F)		 17°C
(63°F)
Average high 6°C
(43°F)		 6°C
(43°F)		 12°C
(54°F)		 17°C
(62°F)		 21°C
(69°F)		 28°C
(83°F)		 31°C
(88°F)		 30°C
(87°F)		 27°C
(82°F)		 17°C
(64°F)		 13°C
(55°F)		 8°C
(46°F)
Daily mean -1°C
(30°F)		 -2°C
(30°F)		 4°C
(40°F)		 9°C
(48°F)		 13°C
(56°F)		 20°C
(69°F)		 23°C
(74°F)		 22°C
(73°F)		 19°C
(66°F)		 9°C
(49°F)		 5°C
(40°F)		 0°C
(33°F)
Average low -7°C
(20°F)		 -8°C
(19°F)		 -2°C
(28°F)		 1°C
(35°F)		 6°C
(44°F)		 12°C
(55°F)		 16°C
(61°F)		 15°C
(59°F)		 11°C
(53°F)		 3°C
(37°F)		 -2°C
(29°F)		 -5°C
(23°F)
Mean minimum -18°C
(-1°F)		 -20°C
(-3°F)		 -13°C
(8°F)		 -8°C
(18°F)		 -1°C
(31°F)		 7°C
(45°F)		 12°C
(53°F)		 12°C
(54°F)		 4°C
(40°F)		 -11°C
(13°F)		 -10°C
(15°F)		 -14°C
(7°F)
Minimum -24°C
(-10°F)		 -24°C
(-12°F)		 -22°C
(-7°F)		 -13°C
(8°F)		 -6°C
(21°F)		 6°C
(42°F)		 11°C
(51°F)		 11°C
(52°F)		 -1°C
(31°F)		 -18°C
(-1°F)		 -14°C
(6°F)		 -19°C
(-2°F)

Compare climate in Northglenn with other places

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

Monthly average precipitation in Northglenn, Colorado, United States §

Northglenn usually has the most precipitation in March, April and May, with an average of 11 rainy days and 73 mm (2.9 inches) of precipitation per month.The driest months in Northglenn are January, November and December. On average, 20 mm (0.8 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Northglenn, 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) 21 (0.8) 27 (1.1) 55 (2.2) 56 (2.2) 109 (4.3) 46 (1.8) 35 (1.4) 41 (1.6) 28 (1.1) 37 (1.5) 24 (0.9) 14 (0.6)
Average precipitation days (≥ 1 mm) 4 7 9 10 14 9 8 7 5 6 4 3

Monthly sunshine hours in Northglenn, Colorado, United States §

The sunniest months in Northglenn are June, July and August, when the sun shines an average of 11 hours 59 minutes a day.Least sunny months in Northglenn: January, February and December receive an average of 7 hours 14 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Northglenn, 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 184 236 287 303 330 373 378 351 309 274 248 237
Mean daily daylight hours 9h 41m 10h 41m 11h 58m 13h 17m 14h 23m 14h 56m 14h 38m 13h 39m 12h 23m 11h 5m 9h 57m 9h 22m

Solar UV radiation in Northglenn, Colorado, United States §

Northglenn experiences the highest level of ultraviolet (UV) radiation in April, June and July, when the maximum UV index can reach values of 11 - 12, 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 Northglenn UV Index data.

Average daily maximum UV levels by month for Northglenn, 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 11 11 12 12 11 10 7 5 4