Climate/Location

The Land of Cool Sunshine

The San Luis Valley's Alamosa County is located in South Central Colorado at an elevation of 7,544 feet. The Valley, roughly the size of Connecticut, is the largest alpine valley in the world. Surrounded by majestic peaks, the Sangre de Cristo's to the east and the San Juan's to the west, mountain vistas sculpt the horizon. The famous Rio Grande originates in the San Juan Mountains and flows through the San Luis Valley.

Number of Sunshine Days: 350
Average Summer Temperature: 65 degrees F
Average Winter Temperature: 14 degrees F
Average Annual Precipitation: 7.6 inches
Average Annual Snowfall: 41.7 inches

The climate of the San Luis Valley is marked by moderate summers and cold winters, light precipitation and much sunshine. In Alamosa, 80% of the annual precipitation occurs from April to October, most of it as scattered, light showers from thunderstorms that develop over the mountains and move into the valley during the afternoon. More than half of these thunderstorms occur during July and August.

Winter snow, which occurs mainly in frequent light falls, average less than 40 inches per year, with occasional falls as early as September or as late as May. A good snow cover will remain on the ground for several weeks during the coldest months. The growing season averages about 90 days in Alamosa, increasing to over 100 days in the areas north and west of the city. July and August are usually the only frost free months.

Upcoming Events

  • Fri, Sep 22 Astronomers of all levels are invited to attend this event at the Great Sand Dunes to share their time and telescopes, engaging the public with unique astronomy experiences!...

  • Sat, Sep 23 You can visit the Market every Saturday during the months of July through October. At the Alamosa Farmers' Market you can find fresh, local and regional produce, baked...

  • Sat, Sep 23 This event is Chalk Full of Family Fun! Artists can team up or go it alone to create Sidewalk Art at the Depot on the Corner of Sixth...

  • Sat, Sep 23 Form a team & share your energy at the 14th annual Stephanie L. Miner 5K walk and run. Join us as we walk, jog & run to celebrate...

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