ChescoWx

The Chester County record high for today is 90 degrees set back in 1976 with the record low of 24 from 1928. Record rainfall is the 1.32" from 1991. So far this month we are averaging exactly 1 degree below normal.

We hit freezing again this morning for the 95th and possibly last time this season in Chester County. Warming from now through early next week before a change to below normal temps again to both finish out April and as we open up May across the County.

We ended up with 2.19" of rain with 1.79" yesterday - that sets a new daily rainfall record for the 18th breaking the old mark of 1.43" back in 1924. Also some snow showers this AM

We have tied the record for coldest April 18th max temp here in Chester County...equaling the previous cold max of 45 set back in 2003 with records back to 1894! Also we continue with a mix of rain and wet snow with a temp at 37.9

Continuing to see quite a few reports on my Chester County page and via email from my website of snow falling in spots over 650 feet here in Western Chester County. Continues to rain steadily here in East Nantmeal with frequent mangled snowflakes at 685 ft ASL. Temp at 38.5

A few wet snowflakes mixed with some rain here in NW Chester County - temp 43.7

1983

We did reach a morning low of 30 degrees here in East Nantmeal this morning - our 1st freezing temperature since back on March 30th. As mentioned today is the average date of our last freeze in the highers spots of Western Chester County. The record high for today is 95 back in 1896; with the record low being the 21 degree reading on 1928. Record rain is 1.43" in 1924. Largest snow was 0.3" on this date that began the largest late season snow in Chester County history...when over the 3 days ending on April 20, 1983 we received 6.7" of snow here in Chester County. Snow began at 1120pm on the 17th and continued until the early AM on the 20th. Kind of unusual with a late season snow such as this...was the NWS COOP observer reported localized drifting of the snow with the strong winds and most schools in the area were closed.

The record high for today is 95 set back in 1896 - the record low is 20 degrees from this date in 1928. We do have a Freeze warning up for Western Chester County and a Freeze watch for Eastern Chesco. Of interest tomorrow the 18th is the average date of our last freeze here in Chesco...we shall see.

Today marks the start of the earliest heat wave (at least 3 consecutive 90+ days) in Chester County PA history. As on this date way back in 1896 the National Weather Service coop observers across Coatesville, West Chester and Phoenixville recorded high temperatures exceeding the 90 degree mark starting on the 16th at Coatesville and the 17th at both West Chester and Phoenixville. The heat wave lasted till the 19th across all locations. The next earliest heat wave would not occur across Chester County until April 17, 1976.

The record high today is 86 set in 1967 and the record Chester County low is 24 from back on this date in 1981. Record rain was the 1.71" that fell in 1925.

With today's 1st 60+ day of April we are tied for the 2nd latest date in Aprll Chesco weather history to record our 1st 60+ day. Tied with 1896 and 1938 which also recorded their first such day on the 12th day of the month.

With today's high of only 47.2 here in NW Chester County this is the latest we have gone into any April without a 60 degree reading in the last 61 years! In 1961 the 1st such day was on the 14th of the month - that was also the latest in history for our first 60 degree reading in April.

The record high today is 86 set back in 1922 with the record low of 23 recorded on this date back in 1985. Our largest April snowstorm began on this date at 10am on April 10, 1894 and continued until ending at 230pm on April 12th. By that time 29.2" of snow had fallen. Of note temperatures never fell below freezing the entire time during that historic snowstorm. During the snowfall temps stayed between 33 and 34 degrees so you know it was a very heavy wet snow.

Indeed....when I tell locals we average the same annual snowfall as Chicago or Providence RI they are surprised - they know it snows a lot more here compared to philly or south jersey but....still they are surprised

20.5" for the season here in East Nantmeal - which is about 16" below our annual seasonal fall in the western philly burbs. Largest was the 5.8" on Jan 28/29 and the 4.3" on both March 12th and January 7th.

Record Chester County high temperature today is 86 degrees in 1922 the record low is 22 in 1896. Record rain is 2.23" back in 1906 with the daily record snow being the 6.0" of snow on this date back in 1916. Since last evening another 0.26" of rain has fallen.

Happy Phillies Opening Day (This should be a local holiday!!) Storm Total - 2.91" Tues (0.12") Wed (0.99") and Thurs (1.80")

Of note this is the latest we have gone in April without a 60 degree reading in Chester County in 33 years since way back in 1990! This is only the 11th time since 1894 we have gone this deep into April without a 60 degree reading.

1.04" of rain so far today with more on the way this evening. We are now above normal rainfall for the season - year to date = 12.27" normal thru today 12.24" - the Tempest is only at 0.81" so far with the VP at 0.94" today....

Record high for today is 88 degrees back in 2010 and the record low is 20.0 set in 1982. Record rain is 1.16" in 1930 and the record snow is 2.6" in 1990

Total storm rainfall through 7am for East Nantmeal Township 0.96" with 0.84" since midnight. Now up to 91% of normal year to date rainfall through today 11.08" (12.16") Record high today is 86 degrees back in 1942 - record low is 15 degrees from 1982. It also snowed 3.4" on this date in 1982.

The record high for Today was 84 back in 1910 - the record low temperature was 21.0 in 1995

On this date in 2018 - I recorded 2.5" of snow in East Nantmeal with a temp that never fell below freezing. High of 44.3 Low of 33.0