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2 hours ago, wishcast_hater said:

This should piss some people off.  Yes its the driest on record, how far do our records go back? People make it like time began 100 to 150 years ago.  Is this normal, no but im certain it has happened before. Do I want rain, yes.  Do I want a lot of snow in winter? HeLL Yes.

Official records I guess, although I am under the assumption people have studied, tree rings, core samples etc.  to get a pretty good picture of weather before records were kept?

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Records:

Highs:

EWR:  81 (1963)
NYC: 82 (1963)
LGA: 79 (1963)
JFK: 78 (1963)


Lows:

EWR: 27 (1936)
NYC: 28 (1936)
LGA: 33 (1976)
JFK: 31 (1976)


Historical:

 

1764 - A "very remarkable storm of snow with high winds" produced 22 inches at Rutland in central Massachusetts. (David Ludlum)

1929 - A snowstorm dumped 27 inches upon Ishpeming, MI, in 24 hours to establish a state record. (David Ludlum)

1962 - An early season winter storm over New England blanketed northern Maine with 7 to 16 inches of snow, and southeastern New England with up to 3 inches of snow. Worcester MA received a record 4.7 inches of snow. (The Weather Channel)

1987 - Showers and thunderstorms produced locally heavy rain from Virginia to New York State. Fallen leaves made roads and sidewalks slick, and also clogged sewers. Rainfall totals of 1.55 inches at Newark NJ, 1.54 inches at Harrisburg PA, 1.27 inches at Scranton PA, and 1.22 inches at Atlantic City NJ, were records for the date. (The National Weather Summary)

1988 - Low pressure brought snow and gale force winds to the Great Lakes Region, and snow and high winds to the north central U.S. Winds gusted to 47 mph at Lansing MI, and reached 55 mph at Pierre SD. (The National Weather Summary) (Storm Data)

1989 - Wintry weather invaded the northwestern U.S. A storm crossing the Central Rockies produced up to 23 inches of snow in the mountains east of Salt Lake City UT. "Indian Summer" continued in the Lower Ohio Valley and the Upper Great Lakes Region. Afternoon highs of 71 degrees at Marquette MI and 72 degrees at Sault Ste Marie MI were records for the date. (The National Weather Summary) (Storm Data)

2006: An F1 tornado (waterspout) came ashore and caused significant damage on the west side of Apalachicola Florida. 

 

 

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5 hours ago, gravitylover said:

I finally have frost! This is the latest first frost I can remember here in the 28 years I've been here. It's weird though, all of the local stations stayed at or above 34°.

Because the temp is taken at around 5 feet above ground level, at least official temps are, and I doubt anyone has a weather station with the temp sensor at ground level. 

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2 hours ago, psv88 said:

36 this morning. Tonight we freeze 

Absolutely.  Dewpoint here is 23.  Whatever annuals that are left are toast tonight unless you are in a paved urban area or right next to a body of water.  Only spoiler in your area would be if a very light breeze from off the sound continues through the overnight and keeps temps up a bit however that seems unlikely.

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1 hour ago, IrishRob17 said:

Because the temp is taken at around 5 feet above ground level, at least official temps are, and I doubt anyone has a weather station with the temp sensor at ground level. 

How about rooftops with frost?

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50 minutes ago, IrishRob17 said:

The same idea applies, radiant heat loss, it's science. 

Wait, you just implied that the temperature at ground level is different than where it is officially observed, a few feet above the ground.  Then I asked what about frost that forms at higher levels even though the temperature is above freezing.  I understand radiant heat loss...

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16 minutes ago, Dark Star said:

Wait, you just implied that the temperature at ground level is different than where it is officially observed, a few feet above the ground.  Then I asked what about frost that forms at higher levels even though the temperature is above freezing.  I understand radiant heat loss...

So you asked a question about rooftop frost when the temp is above freezing when you already knew the answer. Ok, noted. 

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ISP tied the lowest October dew point on record at only 12°. The relative humidity was 2nd lowest at 17%. So places like the Pine Barrens can experience some strong radiational cooling tonight. 
 

MacArthur/ISP  MOSUNNY   57  12  17


https://mesonet.agron.iastate.edu/plotting/auto/?_wait=no&q=153&network=NY_ASOS&zstation=ISP&month=oct&sday=1027&eday=1231&var=min_dwpf&_r=t&dpi=100&_fmt=png

IMG_1692.thumb.png.0bea3345ec7c548d105afac428886651.png

IMG_1691.thumb.png.48f11776a1e882fda8247d5dc167ebc8.png

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Tomorrow will be another fair but chilly day. Temperatures will top out in the middle and upper 50s after starting in the 30s outside New York City and lower 40s in New York City. Afterward, it will warm up quickly early next week. The month could end with widespread temperatures well into the 70s.

Through today, New York City has seen just a trace of rainfall for October. The old record low figure through October 27 was 0.02" in 1947. At Philadelphia, rainfall has also been a trace. The prior record was 0.05", which was set in 1947. Today is Philadelphia's 29th consecutive day with no measurable precipitation. That ties the record streak of 29 days set during October 11 through November 8, 1874. That record will very likely be broken tomorrow.

Precipitation in the northern Mid-Atlantic region will likely remain below to much below normal through October. As a result, October monthly and all-time monthly record low precipitation amounts will likely be approached or broken in parts of the region.

Select October and Monthly Record Low Precipitation Amounts:

Allentown:
October: 0.15", 1963
Monthly: 0.09", May 1964
Period of Record: January 1912-Present

New York City:
October: 0.14", 1963
Monthly: 0.02", June 1949
Period of Record: January 1869-Present

Newark:
October: 0.21", 1963
Monthly: 0.07", June 1949
Period of Record: January 1893-Present

Philadelphia:
October: 0.09", 1924 and 1963
Monthly: 0.09:, October 1924 and October 1963
Period of Record: November 1871-Pesent

Trenton:
October: 0.05", 1963
Monthly: 0.05", October 1963
Period of Record: September 1865-Present

Wilmington, DE:
October: 0.05", 1924
Monthly: 0.05", October 1924
Period of Record: January 1894-Present

The NAO fell to a preliminary -2.751 on September 24th (all-time September record: -2.371, September 12, 1971). That was the 9th lowest value on record. La Niña winters following September cases where the NAO fell to -1.900 or below featured a predominantly positive NAO. The most recent such winters were 2016-2017 and 2022-2023. The mean temperatures for those winters in New York City were 39.3° and 41.0° respectively. The 1991-2020 normal value is 36.2°. A warmer outcome is favored by the October run of the C3S multi-model forecast for Winter 2024-2025.

The ENSO Region 1+2 anomaly was -0.1°C and the Region 3.4 anomaly was -0.3°C for the week centered around October 16. For the past six weeks, the ENSO Region 1+2 anomaly has averaged -0.30°C and the ENSO Region 3.4 anomaly has averaged -0.33°C. Neutral ENSO conditions will likely evolve into a La Niña event during the late fall.

The SOI was +13.54 today.

The preliminary Arctic Oscillation (AO) was +1.421 today.

Based on sensitivity analysis applied to the latest guidance, there is an implied near 100% probability that New York City will have a warmer than normal October (1991-2020 normal). October will likely finish with a mean temperature near 60.5° (2.6° above normal).

 

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45 minutes ago, lee59 said:

Some temperatures already dropping to the low and middle 40s. If it stays completely clear with light wind, should be lots of areas, outside the urban areas, with frost.

42 already. We going to frost 

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A top 10 warmest October for spots like JFK with the average high in 2nd place.

 

Time Series Summary for JFK INTERNATIONAL AIRPORT, NY - Month of Oct
Click column heading to sort ascending, click again to sort descending.
1 2017 71.0 0
2 2024 70.5 4
3 1971 70.2 0
4 2007 70.1 0
5 2021 69.9 0
6 1963 69.2 0
7 1995 69.0 0
8 1949 68.7 0
9 1984 68.6 0
10 1990 68.4 0

 

Time Series Summary for JFK INTERNATIONAL AIRPORT, NY - Month of Oct
Click column heading to sort ascending, click again to sort descending.
1 1971 63.5 0
2 2017 63.2 0
3 2021 63.0 0
- 2007 63.0 0
4 1984 61.7 0
5 1995 61.6 0
6 1990 61.3 0
7 2024 61.1 4
- 1949 61.1 0
8 1954 60.1 0
9 2013 60.0 0
10 1975 59.9 0
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50 / 26 off a low of 30 and the coolest for the next 7 - 10 days.   Mid / upper 60s a bit warmer tomorrow but more clouds Tue / Wed.  Wed upper 70s / near 80.  Thu upper near /  low 80s.   Mostly dry front Thu evening into Fri morning.  Brief cool down this coming weekend before more ridging and overall above normal into the 6th.  Next shot of rain with trough/front between 6 - 8.  Dry for the next week.

 

vis_nj_anim.gif

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