Colorado Annual Rainfall and Climate Data, see below for individual cities 

 Colorado Average Annual Precipitation

Colorado city precipitation totals

City

Avg Annual Precip

Avg Annual Snow

Avg # days of Precip

Avg # thunderstorm days

Avg # hail days Avg # severe thunderstorm watches per year Avg # tornado watches per year # of tornadoes reported in county, 1960-2010
Alamosa 7.25 32.5 68 42 6 0 0 12
Colorado Springs 17.40 41.8 91 51 5 3 8 77
Denver 15.81 60.3 89 39 4 2 4 13
Grand Junction 8.99 23.6 73 36 2 0 1 9
Pueblo 12.39 32.6 71 40 4 3 8 15
Colorado Annual Precipitation Average - 15.97 inches, 44th wettest state in the U.S.
Colorado Tornado Average - 24.7 per year, 10th most in the U.S.
Largest reported Tornado in Colorado from 1950-2011, 5/22/2008 - 1.760 yards / 1 mile wide
Date with highest number of reported Tornadoes in Colorado from 1950-2011,  May 29th - 46 tornadoes
Average time of occurrence of reported Tornadoes in Colorado from 1950-2011 - 3:58 pm
Colorado Annual Lightning Density - 5.0 flashes per square mile - 31st highest in U.S.
Record Driest year in Colorado from 1895-2012 - 2002, avg precipitation 10.10 inches 
Record Wettest year in Colorado from 1895-2012 - 1941, avg precipitation 21.95 inches
                   



Colorado Precipitation Data

  • Driest location ranked by lowest annual average precipitation: Center, south-central Colorado, 6.98"
  • Wettest location ranked by highest annual average precipitation: Wolf Creek Pass, southwestern Colorado, 47.46"
  • Snowiest location ranked by highest annual average snowfall: Wolf Creek Pass, southwestern Colorado, 435.6"
  • State precipitation record for 24 hours - Holly, southeastern Colorado, 6/17/1965, 11.08"
  • State precipitation record for 1 year - Ruby, central Colorado, 1897, 92.84"
  • State snowfall record for 24 hours - Silver Lake, north-central Colorado, 4/14-15/1921
  • State snow record for 1 season - Wolf Creek Pass, southern Colorado, 1978-1979, 838.0"
  • Wolf Creek Pass is the 9th snowiest location in the western United States with 435.6 inches of snow annually
  • On April 14-15, 1927, Freye's Ranch, Colorado received the current United States record of 62.0 inches of snow in 22 hours
  • On May 30-31, 1935, Cherry Creek, Colorado received the 16th highest 24-hour rainfall total in United States history with 24.0 inches of rain Denver receives 300 sunshine days a year - more annual hours of sun than San Diego, CA or Miami Beach, FL
Colorado temperature averages and extremes, Denver climate extremes/averages, precipitation and temperature data for all U.S. states
and Top 10 U.S. climate extremes
Data sources: National Climatic Data Center, Severe thunderstorm / tornado watch data period is 1999 - 2008, NOAA Storm Prediction Center, Tornado climate data -
NOAA Storm Prediction Center
, State lightning flash density average - 1997-2011, Vaisala
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