Helena Weather In January
The highest recorded temperature in January for Helena for the past 70 years was 63 degrees Fahrenheit, on January 7, 1902, while the regular high temperature is 30. The lowest documented temperature in January for Helena for the past 70 years was -42 registered on January 26, 1957, while the standard low daily temperature for the month is 10.
United States National Weather Service historical Helena January weather data indicates that on January 30, 1893, the measured high temperature did not exceed -33 degrees Fahrenheit, the lowest high measured in Helena in the past 70 years. The Weather Service additionally indicates that on January 18, 1922, the low for the day did not drop below 130 degrees, the highest low recorded in Helena in the last 70 years.
NWS data indicates that the daily high temperature in Helena on January First averages 29 degrees Fahrenheit and the high on the last day of January averages 28 degrees. The low recorded temperature in Helena on January First averages 11 degrees Fahrenheit and the low temperature on the final day of January averages 9 degrees.
Helena usually receives an average of 0.52 inches of precipitation during January. The most rain recorded in a single day, as shown by January Helena Weather data, was 0.62 inches on January 29, 1928. Helena averages 8.5 inches of snow in January. The most snow recorded in a single day in January was 9.3 inches on January 9, 1971.