Monday, September 7, 2020

September

Happy Labor Day! 

It's a windy day here in the North Country, especially on Lake Champlain, where gusts will approach 50 mph at points during the day.

Before I take a brief look at some climatology in Vermont for September, I wanted to share a photo of a beautiful sunset that I took the other night - for me, views like this are quintessential Vermont.


September is one of my favorite months of the year. It is a very transitional month, marking the start of the school year for many, the start of fall, and the shift away from muggy and hot weather towards refreshing and cool air. With September having just started, I wanted to take a look at climate data from past Septembers for Burlington International Airport (BTV) in Burlington, VT.

At BTV, the mean high temperature in September is 70.4 °F. The graph below shows mean September high temperatures at BTV for all years since 1941.

(NOAA Regional Climate Centers/xmACIS)

As the red regression line shows, the mean of September daily high temperatures has been trending upwards, and they range from 64.9 °F in 1950 to 78.9 °F in 2015.

The mean low temperature in September at BTV is 50.1 °F. The following graph shows mean September low temperatures at BTV for all years dating back to 1941.

(NOAA Regional Climate Centers/xmACIS)

Similar to mean high temperatures for September, the mean of September daily low temperatures at BTV has been trending up. The lowest mean low temperature for September was 40.2 °F in 1963, and the highest was 56.4 °F in 2018.

One of my favorite parts of September in Vermont is the foliage that illuminates our state. Here is a photo that I took in Wilmington in southern Vermont a few years ago.


The colors can simply be incredible. By late September in northern Vermont, we can expect to near peak foliage. Hopefully, despite the dry summer that we had, the fall colors will show themselves fully this year.

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