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Does a Cold November Mean a Cold Winter Ahead?
Does a Cold November Mean a Cold Winter Ahead?
Nov 26, 2024 5:42 AM

At a Glance

In the Midwest and Northeast, cold Novembers are correlated with cold winters (December to February).Several cities east of the Rockies were having one of their 10 coldest Novembers on record as of Monday.Our updated winter outlook will be released Thursday.

The first half of November has been dominated by record-shattering arctic blasts in the central and eastern United States, but does a cold November give any indication of how temperatures will be in December, January and February?

According to research by , climatologist at the University of Alaska Fairbanks, the answer is yes.

Brettschneider compiled , which illustrates the relationship between November temperatures and December to February temperatures.

Areas in yellow or light purple have a moderate to strong relationship, meaning colder than average Novembers tend to be followed by colder than average winters and warmer than average Novembers tend to be followed by warmer than average winters (positive correlations).

The colored contours on the map indicate a strong positive correlation (light purple), moderate positive correlation (yellow), weak positive correlation (light brown) and little/no correlation (gray) between November temperatures and December to February temperatures.

(Dr. Brian Brettschneider)

Moderate to strong relationships exist across parts of the upper Midwest, Great Lakes, Ohio Valley, Tennessee Valley and Northeast, Brettschneider's map shows.

As residents of those regions are well aware, November has been quite cold so far, and hundreds of additional record-cold temperatures for mid-November are in jeopardy through Thursday.

(MORE: Arctic Cold Surge Will Shatter Records Through Thursday)

The first 11 days of this month were among the 10 coldest Nov. 1-11 periods on record in , according to the Southeast Regional Climate Center. This includes Chicago (third coldest), Detroit (sixth coldest), Little Rock, Arkansas (sixth coldest), Minneapolis-St. Paul (sixth coldest), Buffalo, New York (seventh coldest), Pittsburgh (seventh coldest) and Cincinnati (eighth coldest).

Much of California and southern portions of Arizona, New Mexico and Texas are other places that have moderate to strong relationships between November temperatures and December to February temperatures. In general, those areas have been near or slightly above average so far in November.

The rest of the country – including most of the Great Plains and Rockies–doesn't have much of a correlation between temperatures in November and those during the heart of winter.

So will the Midwest and Northeast remain colder than average this winter while the West and Southwest stay relatively mild? Brettschneider's research says that's more likely than not to be the case, based on temperatures averaged over many years.

, chief meteorologist at The Weather Company, an Business, agrees with Brettschneider.

"There is pretty good evidence of correlation between November patterns and December to February aggregate patterns, both via temperature correlations and via correlations between various teleconnections, like the Arctic Oscillation and North Atlantic Oscillation," Crawford said in an email.

However, not every winter follows long-term averages, and there are many other factors at play in the atmosphere that can influence temperatures across the U.S.

(MORE: These Cities Had Their Most Miserable Start to Winter, and It's Not Officially Winter Yet)

An updated winter outlook from The Weather Company will be released Thursday on weather.com.

It should also be noted that there is "" between November snowfall and December to February snowfall, Brettschneider tweeted.

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