Grand Junction Weather In December
The highest recorded temperature in December for Grand Junction for the past 64 years was 67 degrees Fahrenheit, most recently registered on December 2, 1999, while the regular high temperature is 39. The lowest reported temperature in December for Grand Junction for the past 64 years was -13 measured on December 9, 1978, and the normal low daily temperature is 18.
United States NWS historical Grand Junction December Weather data records that on December 13, 1978, the high temperature did not exceed 5 degrees Fahrenheit, the lowest high measured in Grand Junction in the past 64 years. NWS weather data additionally shows that on December 5, 1966, the lowest recorded temperature on that day did not drop below 47 degrees, the highest low measured in Grand Junction in the last 64 years.
NWS data indicates that the daily high temperature in Grand Junction on December First averages 43 degrees Fahrenheit and the high on the last day of December averages 38 degrees. The average recorded low temperature in Grand Junction on December First is 23 degrees Fahrenheit and the average low on the last day of December is 17 degrees.
Grand Junction usually receives an average of 0.52 inches of rain during December. According to December Grand Junction Weather records, the most rain measured in a single day in December was 0.6 inches on December 21, 1963. Grand Junction receives an average of 4.8 inches of snow in December. The highest snowfall on a single day in December was 6.5 inches on December 7, 1978.