The weather has been unseasonably warm this week.
Just in the past five or six years, the city of McHenry saw record high temperatures for Christmas week.
“We’re well above normal. You know, it’s really not unprecedented to have this. You see some 50s, you know, a lot of times. It’s the length of it that is impressive, that we could only have five days in a row of 50 degrees or warmer, which is pretty impressive. You know, we’re not way, way above normal,” said meteorologist Kevin Donofrio from the National Weather Service in Romeoville.
On Monday, high temperatures in the city of McHenry reached near the 2006 record high of 52 for Dec. 23, at 50 degrees. The record low for Dec. 23 was minus 4 degrees, according to the National Weather Service.
In 2015, the record high for the city of McHenry on Dec. 24 was 57 degrees. For Christmas in 2014, it got a little cooler with a record high of 43 degrees, according to the NWS. On Tuesday this year, temperatures will reach 51 degrees. Expect a warmer Christmas with a high of 53 degrees. The city of McHenry will not see a white Christmas this year, as the low will be 41 degrees.
The warmer temperatures this week can be explained by the area being locked in high pressure and there isn’t a strong enough pressure to kick it out, Donofrio said. Areas of high pressure tend to bring clear, bright and nicer weather conditions, according to weather.com. The high pressure prevents the cold, warm, dry or moist air from moving into it. The Southwest’s warm winds have been moving in toward the area and haven’t shifted in days, so we are experiencing warmer weather, Donofrio said.