Flagstaff Weather In January
The highest recorded temperature in January for Flagstaff for the past 61 years was 66 degrees Fahrenheit, most recently measured on January 18, 1971, and the typical high is 43. The lowest measured temperature in Flagstaff for the last 61 years in January was -30 most recently registered on January 23, 1937, while the regular low temperature for a given day during the month is 16.
According to National Weather Service historical Flagstaff January Weather data, on January 12, 1963, the high temperature did not exceed 5 degrees Fahrenheit, the lowest high measured in Flagstaff in the past 61 years. The Weather Service additionally indicates that on January 2, 1997, the low for the day did not drop below 41 degrees, the highest low recorded in Flagstaff in the last 61 years.
Weather Service historical data shows that the average daily high temperature in Flagstaff on January First is 40 degrees Fahrenheit and the average high on the last day of January is 43 degrees. The daily low temperature in Flagstaff on January First averages 14 degrees Fahrenheit and the low on the last day of January averages 15 degrees.
Flagstaff usually receives an average of 2.18 inches of precipitation during January. The most precipitation measured in a single day, as indicated by January Flagstaff Weather data, was 2.8 inches on January 28, 1895. Flagstaff averages 21 inches of snow in January. The highest snowfall measured in a single day in January was 28 inches on January 16, 1895.