May weather forecast
Colorado, USA

May ushers in a definitive spring feel across Colorado, with a substantial warming trend and an increase in rain rather than snow in the lower regions. In the Eastern Plains, temperatures typically range from 40°F (4.4°C) to 60°F (15.6°C), creating a comfortable and pleasant climate.

Cities like Boulder, nestled in the Front Range urban corridor, enjoy the emergence of green landscapes, blooming flowers, and more consistent spring weather. Yet, the higher elevations, particularly in the Rocky Mountains, might still experience snowfall, allowing ski resorts to operate into late spring.

Precipitation in May shifts predominantly to rain in the plains and lower elevations, nurturing the growth of vegetation. Thunderstorms may begin to occur, a characteristic weather pattern that continues into the summer months.

May represents a noticeable departure from the colder months, leaving behind the significant snowfall and frigid temperatures of winter. Even though the mountainous regions can still exhibit wintry conditions, the majority of the state enjoys the warmth and renewal that define the spring season. The transition from April's more erratic weather to May's steadier temperatures highlights the evolution towards summer in Colorado.

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• Denver - May »
  Thus, Denver's May weather is a dynamic blend of blue skies and warm days interspersed with refreshing bouts of soothing rainfall. 
 
 As Denver transitions into May, a marginal rise in the average high-temperature is observed, moving from 57.2°F (14°C) in April to a still refreshing 65.8°F (18.8°C). In Denver, during the entire year, snow falls for 43.5 days and aggregates up to 35.67" (906mm) of snow.
• Colorado Springs - May »
  Throughout the year, in Colorado Springs, there are 56.2 snowfall days, and 42.13" (1070mm) of snow is accumulated. During 2.8 snowfall days, in May, Colorado Springs aggregates 3.54" (90mm) of snow.
• Aurora - May »
  The month with the most rainfall in Aurora is May, when the rain falls for 13.3 days and typically aggregates up to 1.97" (50mm) of precipitation. The month with the most rainfall in Aurora, Colorado, is May, when the rain falls for 13.3 days and typically aggregates up to 1.97" (50mm) of precipitation.
• Fort Collins - May »
  In Fort Collins, during the entire year, snow falls for 21.2 days and aggregates up to 15.98" (406mm) of snow. During 1.1 snowfall days, in May, Fort Collins aggregates 1.22" (31mm) of snow.
• Boulder - May »
  The month with the most rainfall in Boulder is May, when the rain falls for 17.5 days and typically aggregates up to 2.48" (63mm) of precipitation. In Boulder, during May, the rain falls for 17.5 days and regularly aggregates up to 2.48" (63mm) of precipitation.
• Pueblo - May »
  On the last day of the month, in Pueblo sunrise is at 5:36 am and sunset at 8:15 pm MDT. In Pueblo, during May, the rain falls for 10.6 days and regularly aggregates up to 1.14" (29mm) of precipitation.
• Greeley - May »
  On the last day of the month, in Greeley sunrise is at 5:30 am and sunset at 8:22 pm MDT. May is the last month it regularly snows in Greeley, Colorado.
• Longmont - May »
  In Longmont in May, during 15 rainfall days, 1.69" (43mm) of precipitation is typically accumulated. During 1.3 snowfall days, in May, Longmont aggregates 1.42" (36mm) of snow.
• Grand Junction - May »
  On the first day of May in Grand Junction, sunrise is at 6:14 am and sunset at 8:07 pm. Grand Junction sees an increase in the average high-temperature with the arrival of May, moving from April's mild 58.6°F (14.8°C) to an agreeable 69.1°F (20.6°C).
• Broomfield - May »
  On the last day of the month, in Broomfield, sunrise is at 5:33 am and sunset at 8:22 pm MDT. During 1.6 snowfall days, in May, Broomfield aggregates 0.79" (20mm) of snow.
• Castle Rock - May »
  On the last day of the month, in Castle Rock sunrise is at 5:34 am and sunset at 8:19 pm MDT. In Castle Rock, in May, during 1.8 snowfall days, 3.46" (88mm) of snow is typically accumulated.
• Commerce City - May »
  In Commerce City, during May, the rain falls for 6.2 days and regularly aggregates up to 0.55" (14mm) of precipitation. During 0.8 snowfall days, in May, Commerce City aggregates 1.26" (32mm) of snow.