October weather forecast
Colorado, USA

October in Colorado brings a distinct autumnal feel, with temperatures continuing to drop and landscapes transforming with vibrant fall colors. In the Front Range urban corridor, temperatures often range from 40°F (4.4°C) to 65°F (18.3°C), providing crisp and cool weather.

The mountains of Colorado become a spectacle, with aspen trees displaying brilliant shades of gold and orange. Hiking and outdoor exploration remain popular, though visitors must be prepared for more unpredictable weather.

Snow becomes a more common occurrence in October, particularly in higher elevations. While not yet substantial enough to support winter sports in most areas, the snow adds a fresh dimension to the scenic beauty.

Rainfall in the lower regions becomes more sporadic, and the once frequent summer thunderstorms are now a rarity. The weather tends to be drier, complemented by the clear and sunny skies typical of Colorado's autumn.

In the Eastern Plains, harvest activities are in full swing, and the agricultural areas reflect the seasonal changes. The contrast between warm days and cooler nights becomes more pronounced, reflecting the diurnal temperature variations that are characteristic of the state's semi-arid regions.

October's weather encapsulates the heart of fall in Colorado, with cooler temperatures, diminishing rainfall, and the onset of snow in the mountains. The shift from the dynamic summer pattern to the more stable, serene conditions of autumn is complete, offering a tranquil and visually stunning environment that is emblematic of Colorado's seasonal diversity.

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• Denver - October »
  Thus, October in Denver becomes a blend of fall aesthetics interrupted by early winter snow showers. 
 The shift into October brings a noticeable decrease in the average high-temperature, falling from a moderately hot 76.6°F (24.8°C) in September to an enjoyable 61.3°F (16.3°C). In Denver during October, the rain falls for 6.1 days and regularly aggregates up to 0.79" (20mm) of precipitation.
• Colorado Springs - October »
  In Colorado Springs, during October, the rain falls for 7.4 days and regularly aggregates up to 1.1" (28mm) of precipitation. In Colorado Springs, in October, during 3.4 snowfall days, 3.31" (84mm) of snow is typically accumulated.
• Aurora - October »
  In Aurora, in October, during 7.3 rainfall days, 0.79" (20mm) of precipitation is typically accumulated. On the first day of October in Aurora, sunrise is at 6:56 am and sunset at 6:41 pm.
• Fort Collins - October »
  In Fort Collins, in October, it is raining for 3.6 days, with typically 0.43" (11mm) of accumulated precipitation. In Fort Collins, in October, it is raining for 3.6 days, with typically 0.43" (11mm) of accumulated precipitation.
• Boulder - October »
  On the first day of October in Boulder, sunrise is at 6:58 am and sunset at 6:42 pm. In Boulder, in October, during 7 rainfall days, 0.91" (23mm) of precipitation is typically accumulated.
• Pueblo - October »
  On the last day of October, in Pueblo sunrise is at 7:24 am and sunset at 5:59 pm MDT. On the first day of October in Pueblo, sunrise is at 6:54 am and sunset at 6:40 pm.
• Greeley - October »
  In Greeley, during October, the rain falls for 3.8 days and regularly aggregates up to 0.47" (12mm) of precipitation. On the first day of October in Greeley, sunrise is at 6:56 am and sunset at 6:40 pm.
• Longmont - October »
  In Longmont during October, the rain falls for 5.9 days and regularly aggregates up to 0.67" (17mm) of precipitation. In Longmont in October, it is raining for 5.9 days, with typically 0.67" (17mm) of accumulated precipitation.
• Grand Junction - October »
  In Grand Junction, in October, it is raining for 7.4 days, with typically 0.94" (24mm) of accumulated precipitation. On the first day of October in Grand Junction, sunrise is at 7:10 am and sunset at 6:56 pm.
• Broomfield - October »
  In Broomfield, during October, the rain falls for 4.8 days and regularly aggregates up to 0.35" (9mm) of precipitation. In Broomfield, during October, the rain falls for 4.8 days and regularly aggregates up to 0.35" (9mm) of precipitation.
• Castle Rock - October »
  In Castle Rock in October, during 5.2 rainfall days, 0.87" (22mm) of precipitation is typically accumulated. In Castle Rock during October, the rain falls for 5.2 days and regularly aggregates up to 0.87" (22mm) of precipitation.
• Commerce City - October »
  On the first day of October in Commerce City, sunrise is at 6:56 am and sunset at 6:41 pm. In Commerce City, in October, it is raining for 2.3 days, with typically 0.24" (6mm) of accumulated precipitation.