Sunday, December 1, 2024

November Was Yet Another Warm Vermont Month In An Incredibly Warm Year So Far

The first day of November opened with a sky that
sort of suggested summer and some leaves still on
trees during this near record warm autumn
 As always, we flip the calendar to a new month, so we have the climate stats for the past month, which took us through November.  

It was another warm month. Burlington ended up with a mean temperature of 42.0 degrees. That barely put us in the top 10 list of warmest Novembers. We tied for 10th place on the list with 1975 and 1896.

Incredibly, that means eight months this year were among the top ten warmest on record. All four seasons in 2024 also scored in the top five warmest. 

You'd think that 2024 is a shoo-in for warmest year on record, which will beat the mark set just last year. However, it appears we're gearing up for a remarkably cold December, which might spoil that record. More on that in a bit.

Temperatures

Depending on where you were in Vermont, the month came out anywhere between about 2.5 and 4.5 degrees warmer than average. 

 No surprise, the warmth of November was statewide and consistent. The warmth was punctuated by two heat bursts in the first week of the month. Temperatures climbed as high as 80 degrees in Woodstock. That's only the second time I'm aware of that it reached 80 somewhere in Vermont during November. The other occasion was during a hot spell in 1950 that brought the temperature up to 81 degrees in Bellows Falls. 

It can get below zero across the state in November, but the coldest readings of the month were mostly in the teens above zero, with some places  not dipping below the 20s. 

Burlington's low for the month was a very mild 24 degrees. (That's a full nine degrees warmer than the coldest reading ever in October, never mind November.  Also in Burlington, every day got at least a little above freezing, a rarity for November. 

Only nine days during November in Burlington were regarded as cooler than normal. And remember, this is the "new normal" based on the average of the past 30 years, when climate change had already skewed weather records.  

Precipitation

The only snow of note in November came in the final
days of the month. Most of the time, it was too 
warm for snow. 
With all the talk of drought establishing itself in Vermont, November could have been worse. It was drier than normal statewide, but storms during the final ten days of the month helped a little. 

Soil conditions are still too dry, and we could use a wet winter and spring, but so far, we're mostly hanging in there. 

Most places in Vermont usually get between about 2.5 and three inches of rain and melted snow during a typical November. This year, we were short by about an inch. 

Burlington clocked in with 1.64 inches of November rain and snow. By my count, that was the 25th driest November out of the past 131 years of reliable records in Burlington.  

Southern Vermont had the worst trouble with a lack of rain early in the month. Drought officially took hold there, and rare for the season brush and forest fires vexed that section of the state well into mid-month. 

Recent rains and snows have finally erased that threat. 

Snowfall was light, with most places not seeing any real snow until Thanksgiving. The Champlain Valley missed out on that storm. Burlington only had 0.1 inches of snow in November, tying with 2004 as the second least snowiest November. (Least snowy, totally a trace is a five way tie).

The Thanksgiving storm left a few high elevations in southern and central Vermont with more snow than  normal for November, an exception to the low-snow rule for the month. 

Autumn, 2024

Meteorological autumn, defined as the period between September 1 and November 30, was the second warmest on record in Burlington. The average temperature for the three months was 53.6 degrees. Only the autumn of 2017 was warmer.   

After a remarkably warm year so far, the first half of
December in our neck of the woods is forecast
to be much colder than we're used to. 

We had such a warm autumn mostly because of the consistency of the warmth rather than many long record hot spells. September was Burlington fourth warmest; October was ninth warmest, and as mentioned November was ties for 10th warmest.

Seven of the ten warmest autumns in Burlington have occurred since 2011.

Incredibly, as I alluded to, each season in Burlington in 2024 was among the warmest seen since they started keeping track of these things back in the 1880s. 

Winter 2023-24 was the warmest, spring, 2024 was tied for second warmest, summer was third warmest, and autumn came in second. 

Makes you wonder if global warming is altering the kind of climate we're used to, huh?  Although, we might just have coming up what has become a rare interruption in our warming Green Mountain State surroundings. 

Long Warmth Ending

Arguably, I can't remember any extended periods of cold than normal weather in Vermont since late autumn and early winter of 2019. (We have had brief excursions into record or near record cold since them, but those have only lasted a few days at most).

Forecasters and long range models are consistent in suggesting we could be about to have a December unlike anything we've seen in at least a quarter century. No guarantees on that, but it's possible.

Most Decembers have been normal to warm over the past few decades, but a persistent weather pattern seems to be setting up that would keep blasts of Arctic air coming at us. We almost guarantee the first half of December will be noticeably colder than normal, with some days being really cold. 

The signals are mixed on what would happen in the second half of December. But if it stays cold, 2023 might well end up keeping its position as Burlington's hottest year. 

The chilly December race is on! 


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