Omaha's overnight lows have dropped to 10 degrees, wind chills have been brutal, a dusting of snow has fallen.
By your definition, has winter arrived?
According to the calendar, winter begins Dec. 21, when the solstice, and shortest day of the year, occurs.
For meteorological record-keeping, winter runs from Dec. 1 through the end of February.
For me, though, winter typically starts with the first good snow after Thanksgiving.
Conditions certainly have been wintry, which has allowed the Omaha metro area to check off a few winter benchmarks:
» First measurable snow. Thursday's flurries marked Omaha's first measurable snow of the year, according to the National Weather Service office in Valley. The National Weather Service defines measurable snow as one-tenth of an inch or greater. Eppley Airfield, the metro area's officials weather station, registered 0.4 inches of snow on Nov. 21.
» First full day with below freezing temperatures: On Saturday, Nov. 23, the high topped out at 22 degrees, making that the first full day when the thermometer didn't reach at least 32 degrees.
According to the weather service, Omaha was late for first measurable snow but relatively on time for its first freezing day.
The average date of the first measurable snow in Omaha is Nov. 9, and the average date for the first full day of below freezing weather is Nov. 20.
Typically by now, Omaha has had its first full inch of snow, too. The city's average first date for a snow depth of one inch or greater is Nov. 23.
Source: National Weather Service-Valley