chescowxman

It looks like our wettest couple of days are on tap since the 5.86" of rain that fell between August 6th and 10th. Models show between 1.25" to as much as 2.75" of potential rain. A cold front will sweep through tomorrow night and end the rain....some models hint at a brief change to snow before ending. These type of rain to snow scenarios rarely work out the way the models project. Either way it is much colder to close out the week before we moderate to close to normal over the weekend with the potential of more rain.

Temperatures will be mild through Wednesday before we turn sharply colder by Thursday morning. Rain will arrive later this morning and be over before the PM rush hour. Rain amounts today will be light with less than 0.25". Rain will return by later tomorrow afternoon and this rain will be more significant with over an inch of rain across the entire area. The rain could end as some snow showers by late Wednesday night.

Today will be our 1st above normal temperature day in the last 12 days. Most spots should touch the low 50's. Mild weather will continue till Wednesday night when we turn sharply colder again with high temperatures both Thursday and Friday potentially staying below freezing. Rain chances both tomorrow and again Tuesday night though Wednesday could bring the area between and 1" to 2" of needed rain.

Temperatures today will continue to be below normal for early December but will begin a moderating trend tomorrow that will peak on Wednesday before a return to colder weather to finish out the work week. Of note rain is likely both Monday afternoon into the evening and again Tuesday PM through Wednesday night. We could see as much at 1.50" inches of rain across the area.

Today will be our 10th straight below normal temperature day and the coldest day so far this young winter season. We start a nice moderating trend with temperatures rising to above normal levels by Sunday afternoon with high temperatures well into the 40's to near 50. Rain chances increase Monday night through Wednesday before possibly ending as a little snow on Wednesday night as we turn colder again.

Here in the Philly burbs of Chester County PA the 1st 5 days of December here in 2024 are off to the coldest start of the final calendar month since way back in 2002. That month in 2002 was also one of the 4 times we have enjoyed a White Christmas since Y2K. Could history repeat itself??

Following the frontal passage this morning any flurries or squalls will end. Temperatures will fall below freezing by late morning in most areas and continue to slowly fall into the 20's in most spots by 4pm. Winds could gust as high as 45mph and cause some power outages in the usual suspect spots (like mine). Tomorrow may be our first sub-freezing day of the season with highs not reaching freezing. We start a nice warming trend over the weekend that should last through mid-week before we chill down again by later next week. We may have several rain chances Monday through Wednesday.

We remain below normal through Saturday before a nice warmup gets underway on Sunday. Some snow flurries could develop later this evening. A strong cold front will sweep from west to east sometime just before rush hour tomorrow morning. Some spots could see a briefly heavy snow squall. Any squall could leave a quick coating to 1/2 inch of snow. Tomorrow will be very windy with temperatures falling from an early morning high just above freezing. Most spots will struggle to get above the freezing mark on Friday. Warmer with rain chances by next Monday morning's rush hour.

Below is some record climate data for Chester County PA since 1893 for the Month of December. Take a look at that delta between the average temperature during that warm recent December of 2015 vs. the record cold December back in 1989. Only a 27 degree average temperature difference!

Here in the Philly burbs of Chester County PA November 2024 ended with an overall average temperature across the County of 47.7 - this was the 19th warmest November since 1893 (see top 20 below). The coolest station was Warwick Park and the warmest was The Brandywine Regional Airport (KOQN) in West Chester.

A cold week ahead with well below normal temperatures across the area to start the first week of December. Mainly dry with the exception of a couple of light snow chances on Wednesday night and again on Saturday night.

Here in East Nantmeal we finished November as the 6th warmest November in the last 21 years at 47.7 degrees which is 3.2 degrees above normal. I will have the monthly climate summary for all reporting stations across the county later. We should open December with a colder than normal stretch with a couple of minor snow chances toward Thursday morning and again over the weekend.

There is always talk that it doesn't snow like it used to in "the old days". Welp - At least here in the philly burbs of Chester County we had quite a few relatively snowy "winters of a lifetime" since 2002-03....all of the yellow highlighted seasons are just since Y2K!! Very cyclical as always!

Here in East Nantmeal the low this morning of 24.4 degrees was our coldest reading since March 22nd when we reached 23 degrees. Today has a forecast to be our coldest high temperature (34 degrees) since the 34.3 degrees back on February 17th. We look to stay cold with below normal temperatures through the 1st 9 or 10 days of December before we should see a nice warming trend by mid-month. There could be a couple snow chances - the first chance on Wednesday night and maybe additional potential toward next weekend.

Chilly today but turning colder tomorrow with a reinforcing cold front later today. We could see a couple light snow flurries today. High temperatures both Saturday and Sunday are just a few degrees above freezing. Temperatures will remain well below normal all week with snow chances increasing by Wednesday night into Thursday morning with the approach of an Alberta Clipper system.