CLINTON — November 2018 was the coldest November in Clinton in 42 years, Jim Blaess, official weather observer for the National Weather Service, said Sunday.
The average mean temperature for the month was 7.9 degrees below normal.
Clinton saw an average mean temperature last month of 31.6 degrees, the coldest since November 1976, which had an average mean temperature of 30.9. The normal mean for November is 39.5.
"Eight degrees below normal is a lot to have," Blaess said. "Overall, November 2018 tied for the fifth-coldest going way back to 1878."
The month also produced a record 24-hour snowfall when 12.1 inches fell during Sunday and Monday, Nov. 25-26. The previous record for November was 9.3 inches, which fell Nov. 14-15, 1997.
“So now our monthly total for November is 15.1 inches, and that’s also a new record for November,” Blaess said. The previous record snowfall for November was 10.3 in 1997. The normal average snowfall for November is 1.6 inches.
The high temperature in Clinton for the month of November 2018 was 55 degrees, Blaess said. That high, recorded Nov. 1, was the coldest high temperature recorded in Clinton in November, according to records that date to 1891.
The old record was 56 degrees, recorded Nov. 20, 1992.
"And the National Weather Service told me... we've never had a blizzard warning in November until this November," Blaess said. The last blizzard warning for this area was Jan. 26, 2014.
"For December, we've already picked up an inch of precipitation in the first two days of the month, and it's already made this the 12th-wettest year on record with the rest of the month to go."
Normal precipitation for the year is 34.25 inches, Blaess said. "As of right now, we're at 45.83."
Normal precipitation for December is 1.82; Clinton has recorded 1.04 as of Sunday.
A 30-year average for December says we can expect 8.7 inches of snow and three days at zero degrees or below, said Blaess.
November 2018 was six to nine degrees below normal for the Quad-City area, according to the National Weather Service. Precipitation was between 1.5 inches below normal and one inch above normal. Snowfall ranged from one inch above normal to 18 inches above normal.
Below average temperatures are expected to continue this week.