BucksCO_PA

Impressive chill this morning at several locations for your neighbors to the west. Trenton - 45 degrees, 1 shy of the record from 1932 ABE - 42 degrees, 2nd lowest for the date behind 39 also in 1932 MPO - 34 degrees, 3rd lowest for the date & the coolest since 32 degrees in 1944

Green icons are locations just reading ozone, the other ones are reading both PM2.5 & ozone. Issue is obviously the PM2.5 pollutant.

PA, NJ & NY among 11 states & DC that did not record a single severe weather report for May.

Great call from over a month ago for little if any heat thru at least the middle of May if I remember correctly. All the Mt. Holly PA & NJ locations are solidly below average at this point in the month. Locally & at nearby TTN only one 80 day since 4/14. Now if we could pull off a dry / cool couplet during one of the summer months that would really be something. Speaking of dry. PHL is currently sitting at a paltry 0.24" of precip for the month. The driest May on record is 0.47" in 1964. The last time PHL recorded any driest month on record was FEB 2002 (0.55"). Additionally should we strike out on the weekend rain opportunity you're looking at one of the driest months on record at any time of year: 0.09" - OCT 1963 0.09" - OCT 1924 0.11" - JUN 1949 0.20" - SEP 1884 0.21" - SEP 2005 0.21" - JUN 1964 0.25" - DEC 1955 0.30" - OCT 1892 0.32" - NOV 1976 0.36" - SEP 1906

You need to hang out next to the Newark ASOS, somehow they managed 60 degrees yesterday. You know you have a problem when it's 2-3 degrees too warm in what should be uniform conditions.

From a hydrologic standpoint there hasn't been an official basin wide drought in the Delaware River Basin region since 2002. A drought emergency was issued for lower basin in late Sept 2010 however less than a week later the area received 4-8" of rain & that emergency was subsequently lifted the following month. In the twenty years prior to the 2001-2002 drought the Delaware River Basin Commission issued drought warnings / emergencies on 6 occasions. Actual droughts were common during the 80's, 90's & the early 2000's until the fall 2002 El Nino when the faucet opened up. Any dry periods since then have been short lived. Locally 4.09" for the 3 day event & 6.39" for the month of April.

5/21/1992: Indian Mills, NJ High 88 / Low 28 Millville, NJ High 82 / Low 30 ACY (Pomona, NJ) high 84 / Low 28

Overall totals for all months

so over the previous 47 yrs. back to 1975 there was 1 tornado recorded in NJ during the month of April, yesterday there were 4

Here's a chart for counties served by the Mt Holly Forecast Office, recent uptick for sure especially for the immediate Philly metro area. Current with yesterday's 5 tornadoes.

did you have the screen name Grothar at one time?

1/4 record high minimum temp: PHL - 57 (1950) NYC - 59 (1950) JAN record high minimum temp: PHL - 60 (1/8/1998) NYC - 59 (1/4/1950)

Yep, daytime highs for 12/25/1980 was even colder than 12/25/1983. As cold as it was during the DEC 1983 outbreak by 12/28 both PHL & NYC were in the mid 50's with over an inch of rain from a healthy clipper so those situations also occurred in the past. Wasted or unproductive cold is not unique to this day & age. Regarding snow for Christmas 1980 that actually fell on the afternoon of Christmas Eve, 2-3" from NE Philly up thru CNJ to New Brunswick. PHL was rain & metro NYC looks to be a little less with around an inch. So a white Christmas that year for many outside NYC & PHL which are only listed as T's.

NYC on 12/25/1980 recorded a midnight high of 20 degrees, by 4:00am the temp had fallen into the single digits & would remain there for the remainder of the day. The afternoon high was only 5, maybe 6, degrees. Same deal for Philly, midnight high of 24 & an afternoon high of only 8 degrees. Christmas eve this year was really impressive given the recent warming trends but with that being said Christmas day 1980 & 1983 still say hold my beer.

Garbage in, garbage out

OMG the tree canopy the tree canopy.....meanwhile the other side of the river Lol

& the Doctor who's been the NJ Climatologist for 30 yrs. Unfortunately what's clearly obvious here is the warmers are just a bad at separating their personal bias as the deniers. OMG the tree canopy the tree canopy yet they bury their heads in the sand when it comes to the garbage coming out of Newark.

Combo sensor & the location is not suitable??? When you have numerous days like today in which day time temps are 4-5 degrees warmer compared to the immediate Newark area consensus then something's clearly wrong. 1-2 degree errors you deal with since that's not out of tolerance however 4-5 degrees renders the location useless as a frame of reference for the immediate metro area. A retired professional from NYC indicated there have been concerns with the sensor location being abnormally dry. After a run of some very wet July's Newark if off to a bone dry start this month, is this exacerbating the situation??? In any event I'll hitch my wagon to the Dr. that's been the NJ State Climatologist for the past 30 yrs. He has been in contact with Brookhaven ad nauseum regarding Newark.

These type of post are useless given the actual high for the immediate Newark area was closer to 95 degrees. The temp error was horrendous yesterday during the peak afternoon heating. Whether sensor error, location or combo of both the end result is embarrassing at this point. The average day time error over the past 28 days was +2.7 degrees on 6/29. That figure today is now +3.3 degrees so more recent 4-5 degrees errors are showing as yesterday's graph supports.

Philadelphia and Central Park haven't recorded 100 degrees since 7/18/2012. Since that date the max temp at both locations is 98 degrees. Triple digits are not easy especially with significant increase in precip & humidity. The sensor at PHL is currently reading 1-2 too warm therefore they have a better than average shot this summer.

https://weather.gladstonefamily.net/site/KNYC Recent temp analysis over the past year does not support this narrative. In actuality the daytime high temps at Central Park when compared to surrounding stations are solidly within the ASOS target in terms of mean error & SD. Over the past 28 days the average day time temp error at Central Park is only 0.3 degrees too cool. The issue, if there really is one, would be the night time average error running solidly cool however that's not far fetched considering the comparison to many highly urbanized sensors vs. the heavily wooded park array. 52 week day time trends are consistent You posted a 9yr old pic of the Central Park ASOS from 2013 showing the surrounding vegetation, it should be noted that despite that growth they had no problems recording triple digits during 2010-2012 including a 104 & 103 day. Very comparable to the triple digit readings at PHL & LGA during that time. Now when you cross the Hudson you really encounter a site that currently has significant day time temp issues on the warm side. I would think the warm bias at Newark is so obvious even Stevie Wonder could see it but apparently that's not the case..... The same data & charts for Newark, in this case the day time temps over the past 14 are well outside the ASOS target. Significant warm average day time temp error. The is how you turn 92 into 96 degrees LOL. Over the past 28 days the day time error is a ridiculous 2.7 degrees too warm which is so bad you have the unacceptable error range note. Finally the 52 week trend, something sure changed during the winter however the sensor has reverted back to it's customary nuking of day time temps.

TTN.. -0.8 ABE.. -2.5 MPO.. -1.5 ACY.. -0.7 N. Brunswick.. 0.0 Newark is reflective of a sensor in the middle of miles of concrete & PHL has been running 1-2 degrees warm since last fall. Vast majority of the region is not represented by those positive departures.

Most lightning detection I've seen on the sensor I've had for the past year & half.

1.93" this morning, monsoon between 8:30-9:00 dropped over an inch Big dump in Bucks County just west of Trenton.

During 1992 the highest temps of year (tied & outright) at Allentown, Newark, Central Park. Islip & JFK occurred in May. At PHL & LGA only one day, 7/14 was hotter than the May max.