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Monthly climate in Lamar, Colorado, United States

Last updated: March 2, 2024

Under the Köppen–Geiger climate classification Lamar features a cold semi-arid climate (BSk). Temperatures typically range between 1 °C (35 °F) and 27 °C (80 °F) through the year, but rarely can drop to -29 °C (-21 °F) or can rise to as high as 41 °C (107 °F). The average annual precipitation amounts to about 373 mm (14.7 inches) and receives 62 rainy days on the 1 mm (0.04 inches) threshold annually. Lamar enjoys an average of 3478 hours of sunshine throughout the year, and daylight varies from 9 hours 32 minutes to 14 hours 45 minutes per day.

Monthly average temperatures in Lamar, Colorado, United States §

The warmest months in Lamar are June, July and August, with daily mean temperatures ranging from 25 to 27 °C (77 - 80 °F) throughout the day. The coldest temperatures usually occur in January, February and December, when daily mean temperatures range from 1 to 3 °C (35 - 37 °F) throughout the day. On average each year, Lamar experiences 137 days above 25 °C (77.0 °F) and 106 days below 0 °C (32.0 °F).

Monthly average temperatures with daily means, minimums and maximums for period, average high and low temperatures in Lamar, 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 22°C
(73°F)		 30°C
(87°F)		 31°C
(89°F)		 34°C
(94°F)		 37°C
(100°F)		 40°C
(104°F)		 41°C
(107°F)		 40°C
(103°F)		 39°C
(103°F)		 34°C
(94°F)		 30°C
(86°F)		 23°C
(74°F)
Mean maximum 20°C
(68°F)		 25°C
(78°F)		 29°C
(85°F)		 32°C
(89°F)		 35°C
(95°F)		 38°C
(100°F)		 40°C
(105°F)		 38°C
(101°F)		 38°C
(101°F)		 32°C
(91°F)		 27°C
(81°F)		 21°C
(69°F)
Average high 9°C
(49°F)		 10°C
(50°F)		 17°C
(63°F)		 21°C
(70°F)		 25°C
(78°F)		 32°C
(90°F)		 34°C
(93°F)		 33°C
(91°F)		 30°C
(86°F)		 21°C
(70°F)		 16°C
(61°F)		 11°C
(52°F)
Daily mean 1°C
(35°F)		 2°C
(35°F)		 8°C
(48°F)		 13°C
(55°F)		 18°C
(64°F)		 25°C
(77°F)		 27°C
(80°F)		 25°C
(77°F)		 22°C
(72°F)		 13°C
(55°F)		 7°C
(45°F)		 3°C
(37°F)
Average low -5°C
(24°F)		 -5°C
(23°F)		 1°C
(34°F)		 5°C
(41°F)		 11°C
(51°F)		 17°C
(63°F)		 19°C
(67°F)		 18°C
(65°F)		 15°C
(59°F)		 5°C
(42°F)		 0°C
(33°F)		 -4°C
(25°F)
Mean minimum -16°C
(4°F)		 -16°C
(3°F)		 -8°C
(17°F)		 -5°C
(24°F)		 3°C
(37°F)		 11°C
(52°F)		 16°C
(60°F)		 14°C
(58°F)		 6°C
(44°F)		 -6°C
(22°F)		 -8°C
(19°F)		 -11°C
(12°F)
Minimum -20°C
(-4°F)		 -29°C
(-21°F)		 -17°C
(2°F)		 -8°C
(19°F)		 0°C
(33°F)		 8°C
(46°F)		 14°C
(58°F)		 12°C
(54°F)		 2°C
(36°F)		 -10°C
(14°F)		 -12°C
(11°F)		 -15°C
(6°F)

Compare climate in Lamar with other places

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

Monthly average precipitation in Lamar, Colorado, United States §

Lamar usually has the most precipitation in May, July and August, with an average of 9 rainy days and 55 mm (2.2 inches) of precipitation per month. The driest months in Lamar are February, November and December. On average, 12 mm (0.5 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Lamar, 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) 16 (0.6) 15 (0.6) 27 (1.1) 36 (1.4) 66 (2.6) 38 (1.5) 49 (1.9) 49 (1.9) 30 (1.2) 25 (1.0) 9 (0.4) 11 (0.4)
Average precipitation days (≥ 1 mm) 3 3 4 5 9 6 11 8 3 4 3 3

Monthly sunshine hours in Lamar, Colorado, United States §

The sunniest months in Lamar are June, July and August, when the sun shines an average of 11 hours 36 minutes a day. Least sunny months in Lamar: January, February and December receive an average of 7 hours 26 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Lamar, 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 189 239 283 301 329 357 366 343 300 266 253 248
Mean daily daylight hours 9h 50m 10h 47m 11h 59m 13h 12m 14h 14m 14h 45m 14h 28m 13h 33m 12h 22m 11h 9m 10h 5m 9h 32m

Solar UV radiation in Lamar, Colorado, United States §

Lamar experiences the highest level of ultraviolet (UV) radiation in June, July and August, when the maximum UV index can reach values of 11 - 12, which corresponds to the Extreme category of sun exposure. January, February 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 Lamar UV Index data.

Average daily maximum UV levels by month for Lamar, 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 5 8 10 11 12 12 11 10 7 5 3

Detailed Monthly Weather Insights for Lamar, Colorado, United States

Discover in-depth weather details for every month in Lamar. Click through the links below for comprehensive overviews of temperature trends, precipitation levels, sunshine hours, and solar UV radiation specifics. Whether planning a visit or simply curious about Lamar's climate nuances, these monthly breakdowns provide the information you need for an informed understanding of what to expect throughout the year.

Each link leads to a detailed account of the typical weather conditions for that month, providing both locals and tourists with vital information to plan their daily activities, wardrobe, and travel itineraries accordingly.