Weather By Day

August Weather In Grand Junction  
August Grand Junction Weather
Record High: 103°F
Normal High: 90°F
Normal Low: 60°F
Record Low: 40°F
Avg Monthly Rain: 0.84"
Rec 1 Day Rain: 0.99"

Grand Junction Weather In August

The hottest August day in Grand Junction for the past 64 years was 103 degrees Fahrenheit, on August 2, 2000, while the mean high temperature is 90. The lowest measured temperature in Grand Junction for the last 64 years in August was 40 most recently encountered on August 28, 1963, and the normal low daily temperature is 60.

United States NWS historical Grand Junction August Weather data records that on August 25, 1987, the high temperature did not exceed 68 degrees Fahrenheit, the lowest high measured in Grand Junction in the past 64 years. Weather Service records also indicate that on August 3, 2000, the low temperature for the day was not measured below 74 degrees, the highest low measured in Grand Junction in the last 64 years.

Historical weather data accumulated by the National Weather Service shows that the average daily high temperature in Grand Junction on August First is 92 degrees Fahrenheit and the average high on the last day of August is 87 degrees. The average daily low temperature in Grand Junction on August First is 63 degrees Fahrenheit and the average low on the last day of August is 59 degrees.

Grand Junction usually receives an average of 0.84 inches of rain during the month. The most rain recorded in a single day, as shown by August Grand Junction Weather data, was 0.99 inches on August 27, 1963.