ChescoWx

Snow is starting to move into the County from the NW this morning. With the temperatures below freezing we could see some slick spots on area roads - be careful. Most spots will see at most about a half an inch of snow. We start a nice warmup tomorrow through the weekend...it should be dry tomorrow and Saturday before rain moves in on Sunday. Much colder again for next week. Records for today: High 75 (1998) / Low 1 (1926) / Rain 2.04" (1914) / Snow 8.0" (1959)

Snow is starting to move into the County from the NW this morning. With the temperatures below freezing we could see some slick spots on area roads - be careful. Most spots will see at most about a half an inch of snow. We start a nice warmup tomorrow through the weekend...it should be dry tomorrow and Saturday before rain moves in on Sunday. Much colder again for next week. Records for today: High 75 (1998) / Low 1 (1926) / Rain 2.04" (1914) / Snow 8.0" (1959)

That well respected Met JB says it will be rocking......

Non paved surfaces were briefly covered in the earlier heavier snow shower temp down to 34.3 following earlier 36.7

Things whitened up briefly during the earlier heavier snow shower - temp down to 34.3 following earlier 36.7

A few snow flurries are flying this AM across spots of the county. Mostly cloudy the rest of today with maybe some more snow showers tomorrow AM. Temperatures both today and Thursday will struggle to escape the 30's. We start warming by Friday with above normal temps through the weekend with rain likely by Sunday before a return to colder again by next week. Records for today: High 73 (1998) / Low 8 (1902) / Rain 1.47" (2013) / Snow 6.7" (1910)

A few snow flurries are flying this AM across spots of the county. Mostly cloudy the rest of today with maybe some more snow showers tomorrow AM. Temperatures both today and Thursday will struggle to escape the 30's. We start warming by Friday with above normal temps through the weekend with rain likely by Sunday before a return to colder again by next week. Records for today: High 73 (1998) / Low 8 (1902) / Rain 1.47" (2013) / Snow 6.7" (1910)

Below normal temps through Thursday before a nice warming trend over the weekend with rain again by Sunday before colder again next week. Records for today 75 (2001) / Low 10 (1926) / 3.27" (1993) / Snow 8.5" (2003)

Below normal temps through Thursday before a nice warming trend over the weekend with rain again by Sunday before colder again next week. Records for today 75 (2001) / Low 10 (1926) / 3.27" (1993) / Snow 8.5" (2003)

A pretty typical early December week with temperatures below normal early week to above normal by next weekend. The next chance of rain will not be till Sunday. Records for today: High 71 (1998) / Low 6 (1940) / Rain 1.54" (1900) / Snow 10.0" (1957)

A pretty typical early December week with temperatures below normal early week to above normal by next weekend. The next chance of rain will not be till Sunday. Records for today: High 71 (1998) / Low 6 (1940) / Rain 1.54" (1900) / Snow 10.0" (1957)

Since we are starting the first winter month I thought I would give you my annual attempt at a winter forecast for Chester County PA. Take this for what it is worth as the last 3 years I have done this have been totally and completely wrong! I will show you my methodology for the forecast below. You will see below that the fall season (September thru November) here in Chester County has overall since the 1890's shown a clear cooling pattern...however, during our current warming cycle since 1970 we have seen a clear warming pattern. Overall this Fall has averaged 54.9 degrees which is the 50th warmest Fall since 1894. I decided to use the surrounding 20 fall seasons using from the 30th warmest to the 70th warmest fall average temperatures. I compared those to the upcoming winter and came up with the following forecast base on our fall temperatures this year. Average Temperature will be 32.1 degrees this is 0.9 degrees below our 30 year average. Total snowfall will be between 28" to 37" our 30 year average is 36.3" in the county. I put a range here as the ranges for the analog years I used go from the 86.6" of snow we received in 2009-10 to as little as the 2.7" from just last year. For your coffee table conversation the annual average snowfall for Chicago IL is only a couple inches more than Chesco at 38"....who knew Chesco was almost as snowy as Chicago? So there it is! What do you think? How wrong will I be this year? Enjoy!

Since we are starting the first winter month I thought I would give you my annual attempt at a winter forecast for Chester County PA. Take this for what it is worth as the last 3 years I have done this have been totally and completely wrong! I will show you my methodology for the forecast below. You will see below that the fall season (September thru November) here in Chester County has overall since the 1890's shown a clear cooling pattern...however, during our current warming cycle since 1970 we have seen a clear warming pattern. Overall this Fall has averaged 54.9 degrees which is the 50th warmest Fall since 1894. I decided to use the surrounding 20 fall seasons using from the 30th warmest to the 70th warmest fall average temperatures. I compared those to the upcoming winter and came up with the following forecast base on our fall temperatures this year. Average Temperature will be 32.1 degrees this is 0.9 degrees below our 30 year average. Total snowfall will be between 28" to 37" our 30 year average is 36.3" in the county. I put a range here as the ranges for the analog years I used go from the 86.6" of snow we received in 2009-10 to as little as the 2.7" from just last year. For your coffee table conversation the annual average snowfall for Chicago IL is only a couple inches more than Chesco at 38"....who knew Chesco was almost as snowy as Chicago? So there it is! What do you think? How wrong will I be this year? Enjoy!

Some rain totals across the county since midnight - Glenmoore 0.89" / East Nantmeal Twp, 0.53" / Atglen 0.43" / Warwick Twp. 0.48" / West Brandywine Twp. 0.41" Most of the steady rain. Cloudy day with temperatures only rising a couple degrees from the near 50 degrees we are currently at across much of the area. We should have temps near normal for much of the week before rising a bit above normal by next weekend before colder again for next week. There is a slight chance of some snow flurries on Tuesday night but otherwise a mainly dry week. Records for today: High 69 (1998) / Low 9 (1976) / Rain 1.12" (1905) / Snow 5.2" (1907)

Some rain totals across the county since midnight - Glenmoore 0.89" / East Nantmeal Twp, 0.53" / Atglen 0.43" / Warwick Twp. 0.48" / West Brandywine Twp. 0.41" Most of the steady rain. Cloudy day with temperatures only rising a couple degrees from the near 50 degrees we are currently at across much of the area. We should have temps near normal for much of the week before rising a bit above normal by next weekend before colder again for next week. There is a slight chance of some snow flurries on Tuesday night but otherwise a mainly dry week. Records for today: High 69 (1998) / Low 9 (1976) / Rain 1.12" (1905) / Snow 5.2" (1907)

Today looks great for getting out there a putting up your Christmas Lights (I will). It will be mild with temperatures almost 10 degreees above normal in the upper 50's. Rain will move back in tonight toward midnight and last till early tomorrow afternoon. Colder air moves in starting Monday and will last through the week. Records for today: High 65 (1962) / Low 8 (1976) / Rain 1.13" (1986) / Snow 4.5" (1903)

Today looks great for getting out there a putting up your Christmas Lights (I will). It will be mild with temperatures almost 10 degreees above normal in the upper 50's. Rain will move back in tonight toward midnight and last till early tomorrow afternoon. Colder air moves in starting Monday and will last through the week. Records for today: High 65 (1962) / Low 8 (1976) / Rain 1.13" (1986) / Snow 4.5" (1903)

Large range of temps this morning across the county with lower spots down into the mid-20's while the ridge locations stayed above freezing. Today should be close to normal high temps for the first day of December before a milder than normal weekend followed by a return to below normal temps next week. It looks like rain will overspread the area from SW to NE over the 3pm hour today and be over by 1am Saturday morning. More showers by Sunday AM but we should see a drier PM before more showers at night. Records for today: High 70.9 (2006) / Low 7 (1967) / Rain 1.80" (1996) / Snow 0.5" (1907)

Large range of temps this morning across the county with lower spots down into the mid-20's while the ridge locations stayed above freezing. Today should be close to normal high temps for the first day of December before a milder than normal weekend followed by a return to below normal temps next week. It looks like rain will overspread the area from SW to NE over the 3pm hour today and be over by 1am Saturday morning. More showers by Sunday AM but we should see a drier PM before more showers at night. Records for today: High 70.9 (2006) / Low 7 (1967) / Rain 1.80" (1996) / Snow 0.5" (1907)

We finished November as our 4th below average temperature month in the last 7 months. This followed the above normal 1st 4 months of 2023. Of note through the first 11 months of the year our average temperature has been 54.6 degrees. This is the 10th coldest year in the last 20 years here in East Nantmeal and the 46th warmest November YTD since records began 130 years ago in 1894. The Top 10 warmest years through November Year to Date were:

We finished November as our 4th below average temperature month in the last 7 months. This followed the above normal 1st 4 months of 2023. Of note through the first 11 months of the year our average temperature has been 54.6 degrees. This is the 10th coldest year in the last 20 years here in East Nantmeal and the 46th warmest November YTD since records began 130 years ago in 1894. The Top 10 warmest years through November Year to Date were: