July 2025 Discussion-OBS - seasonable summer variability

[LibertyBell]

37 minutes ago, Sundog said:

I have 96/76 feels like 110F

Lovely 

if it doesn't make it to 100 the pain isn't worth it.

[lee59]

92/69 here

[SACRUS]

 

 

1PM Round up -- only stations reporting, comical.

EWR: 97
TEB: 97
New Brnswck: 93

[LibertyBell]

1 minute ago, SACRUS said:

 

 

1PM Round up -- only stations reporting, comical.

EWR: 97
TEB: 97
New Brnswck: 93

lol you should have seen the NOAA assistant director during his interview trying to make it seem the budget cuts won't have an effect

[bluewave]

1 hour ago, Roger Smith said:

Interesting about the extended Newark data, can somebody have a look and give an idea of lowest temperatures in Jan 1857 and Feb 1855? Also hottest of 1854 and 1868? I think these could prove to be the extremes to be added to NYC span.

It’s interesting that none of those great Arctic outbreaks of the 1800s could rival February 1934 at Newark. Was the only -14° low temperature and the coldest month at 18.6° since 1843. The only time Newark may have been colder was back in January 1780 when there was a -16° report in NYC.

Time Series Summary for NEWARK LIBERTY INTL AP, NJ - Dec through Feb Lowest Temperatures 
Click column heading to sort ascending, click again to sort descending.

1	1933-1934	-14	0
2	1917-1918	-13	2
-	1865-1866	-13	11
-	1858-1859	-13	11
3	1872-1873	-12	9
-	1856-1857	-12	7
4	1903-1904	-10	0
5	1898-1899	-9	5
6	1984-1985	-8	0
-	1860-1861	-8	5
-	1854-1855	-8	8
-	1851-1852	-8	5
7	1981-1982	-7	0
-	1942-1943	-7	0
-	1880-1881	-7	9
-	1855-1856	-7	6
8	1911-1912	-6	1
9	1913-1914	-5	1
-	1895-1896	-5	4

 

Time Series Summary for NEWARK LIBERTY INTL AP, NJ - Coldest Month of Jan
Click column heading to sort ascending, click again to sort descending.

1	1918	20.1	3
2	1977	20.9	0
3	1857	21.1	5
4	1893	21.5	3
5	1865	21.7	8
6	1904	21.8	0
7	1856	22.3	2
8	1912	22.9	0
-	1867	22.9	0
9	1920	23.0	11
10	1884	23.5	11
-	1875	23.5	4

 

Time Series Summary for NEWARK LIBERTY INTL AP, NJ - Coldest Month of Feb
Click column heading to sort ascending, click again to sort descending.

1	1934	18.6	0
2	1868	21.3	4
3	2015	22.6	0
4	1875	22.7	2
5	1907	22.8	4
6	1905	23.2	0
7	1979	23.5	0
8	1901	23.9	0
-	1885	23.9	7
9	1904	24.0	0
10	1936	24.4	0

 

 

 

[SACRUS]

1 minute ago, LibertyBell said:

lol you should have seen the NOAA assistant director during his interview trying to make it seem the budget cuts won't have an effect

There were issues last year, especially at JFK and BLM.  Today is a whole other level.

[SACRUS]

1 minute ago, bluewave said:

It’s interesting that none of those great Arctic outbreaks of the 1800s could rival February 1934. It’s the only -14° low temperature there. It’s also the coldest month at 18.6° since 1843. The only time Newark may have been colder was back in January 1780 when there was a -16° report around NY Harbor.

Time Series Summary for NEWARK LIBERTY INTL AP, NJ - Dec through Feb Lowest Temperatures 
Click column heading to sort ascending, click again to sort descending.

1	1933-1934	-14	0
2	1917-1918	-13	2
-	1865-1866	-13	11
-	1858-1859	-13	11
3	1872-1873	-12	9
-	1856-1857	-12	7
4	1903-1904	-10	0
5	1898-1899	-9	5
6	1984-1985	-8	0
-	1860-1861	-8	5
-	1854-1855	-8	8
-	1851-1852	-8	5
7	1981-1982	-7	0
-	1942-1943	-7	0
-	1880-1881	-7	9
-	1855-1856	-7	6
8	1911-1912	-6	1
9	1913-1914	-5	1
-	1895-1896	-5	4

 

Time Series Summary for NEWARK LIBERTY INTL AP, NJ - Coldest Month of Jan
Click column heading to sort ascending, click again to sort descending.

1	1918	20.1	3
2	1977	20.9	0
3	1857	21.1	5
4	1893	21.5	3
5	1865	21.7	8
6	1904	21.8	0
7	1856	22.3	2
8	1912	22.9	0
-	1867	22.9	0
9	1920	23.0	11
10	1884	23.5	11
-	1875	23.5	4

 

Time Series Summary for NEWARK LIBERTY INTL AP, NJ - Coldest Month of Feb
Click column heading to sort ascending, click again to sort descending.

1	1934	18.6	0
2	1868	21.3	4
3	2015	22.6	0
4	1875	22.7	2
5	1907	22.8	4
6	1905	23.2	0
7	1979	23.5	0
8	1901	23.9	0
-	1885	23.9	7
9	1904	24.0	0
10	1936	24.4	0

Surpised 1976 didnt make that list.

[SACRUS]

7 minutes ago, SACRUS said:

 

 

1PM Round up -- only stations reporting, comical.

EWR: 97
TEB: 97
New Brnswck: 93

 

 

EWR: 97
TEB: 97
LGA: 95
New Brnswck: 93
ACY: 93
PHL: 92
NYC: 92
TTN: 92
BLM: // No data nearest is 92
JFK: 91
ISP: 89

[LibertyBell]

7 minutes ago, bluewave said:

It’s interesting that none of those great Arctic outbreaks of the 1800s could rival February 1934. It’s the only -14° low temperature there. It’s also the coldest month at 18.6° since 1843. The only time Newark may have been colder was back in January 1780 when there was a -16° report around NY Harbor.

Time Series Summary for NEWARK LIBERTY INTL AP, NJ - Dec through Feb Lowest Temperatures 
Click column heading to sort ascending, click again to sort descending.

1	1933-1934	-14	0
2	1917-1918	-13	2
-	1865-1866	-13	11
-	1858-1859	-13	11
3	1872-1873	-12	9
-	1856-1857	-12	7
4	1903-1904	-10	0
5	1898-1899	-9	5
6	1984-1985	-8	0
-	1860-1861	-8	5
-	1854-1855	-8	8
-	1851-1852	-8	5
7	1981-1982	-7	0
-	1942-1943	-7	0
-	1880-1881	-7	9
-	1855-1856	-7	6
8	1911-1912	-6	1
9	1913-1914	-5	1
-	1895-1896	-5	4

 

Time Series Summary for NEWARK LIBERTY INTL AP, NJ - Coldest Month of Jan
Click column heading to sort ascending, click again to sort descending.

1	1918	20.1	3
2	1977	20.9	0
3	1857	21.1	5
4	1893	21.5	3
5	1865	21.7	8
6	1904	21.8	0
7	1856	22.3	2
8	1912	22.9	0
-	1867	22.9	0
9	1920	23.0	11
10	1884	23.5	11
-	1875	23.5	4

 

Time Series Summary for NEWARK LIBERTY INTL AP, NJ - Coldest Month of Feb
Click column heading to sort ascending, click again to sort descending.

1	1934	18.6	0
2	1868	21.3	4
3	2015	22.6	0
4	1875	22.7	2
5	1907	22.8	4
6	1905	23.2	0
7	1979	23.5	0
8	1901	23.9	0
-	1885	23.9	7
9	1904	24.0	0
10	1936	24.4	0

 

 

The 1780s were the coldest and snowiest time in our history, because of that Icelandic volcano, Laki.  I read that NYC reached -16 (only one degree colder than it was in February 1934) and that we had over 100 inches of snow throughout the area.

 

[LibertyBell]

9 minutes ago, bluewave said:

It’s interesting that none of those great Arctic outbreaks of the 1800s could rival February 1934. Was the only -14° low temperature and the coldest month at 18.6° since 1843. The only time Newark may have been colder was back in January 1780 when there was a -16° report in NYC.

Time Series Summary for NEWARK LIBERTY INTL AP, NJ - Dec through Feb Lowest Temperatures 
Click column heading to sort ascending, click again to sort descending.

1	1933-1934	-14	0
2	1917-1918	-13	2
-	1865-1866	-13	11
-	1858-1859	-13	11
3	1872-1873	-12	9
-	1856-1857	-12	7
4	1903-1904	-10	0
5	1898-1899	-9	5
6	1984-1985	-8	0
-	1860-1861	-8	5
-	1854-1855	-8	8
-	1851-1852	-8	5
7	1981-1982	-7	0
-	1942-1943	-7	0
-	1880-1881	-7	9
-	1855-1856	-7	6
8	1911-1912	-6	1
9	1913-1914	-5	1
-	1895-1896	-5	4

 

Time Series Summary for NEWARK LIBERTY INTL AP, NJ - Coldest Month of Jan
Click column heading to sort ascending, click again to sort descending.

1	1918	20.1	3
2	1977	20.9	0
3	1857	21.1	5
4	1893	21.5	3
5	1865	21.7	8
6	1904	21.8	0
7	1856	22.3	2
8	1912	22.9	0
-	1867	22.9	0
9	1920	23.0	11
10	1884	23.5	11
-	1875	23.5	4

 

Time Series Summary for NEWARK LIBERTY INTL AP, NJ - Coldest Month of Feb
Click column heading to sort ascending, click again to sort descending.

1	1934	18.6	0
2	1868	21.3	4
3	2015	22.6	0
4	1875	22.7	2
5	1907	22.8	4
6	1905	23.2	0
7	1979	23.5	0
8	1901	23.9	0
-	1885	23.9	7
9	1904	24.0	0
10	1936	24.4	0

 

 

 

The 1980s were well represented on that list, it makes me think the Central Park sensor has been faulty for a long time.  Somehow they never got below -2 since the 1940s.

[jm1220]

8 minutes ago, LibertyBell said:

The 1780s were the coldest and snowiest time in our history, because of that Icelandic volcano, Laki.  I read that NYC reached -16 (only one degree colder than it was in February 1934) and that we had over 100 inches of snow throughout the area.

 

And Winter 1779-1780 is when the Continental Army was stationed at Morristown I believe where hundreds died from hypothermia. It was even worse than the previous winter at Valley Forge which is better known. 

[dWave]

3 hours ago, LibertyBell said:

wow it shows that even low to mid 90s can be deadly, the length of that heatwave might be what made it so deadly.

It's not on the list of longest NYC heatwaves though.

 

Why was that heatwave in 1972 more deadly than the two longer and more extreme heatwaves in 1999 though?  1999 was second only to 1953 in heatwave length and extremes.

 

 Overnight lows matter too. Consistently staying 75+, I assume with high humidity, takes a toll. Remember AC was less widespread then as well. The lack of any time for the human body to recover overnight from the heat increases the risk.

Over an extended period, days with a high low split like 98/68 can be easer to handle then 93/79 for example. Especially in urban areas, as the official temp may not fully capture real world experience inside baking apartment buildings etc. I think a lot of the precautions put in place now to deal with heat became more widespread after the deadly Chicago heat wave. Local govts issuing heat emergencies outside of the NWS warning system, cooling centers etc.

[Snowlover11]

cooking! 95F feeling like 106.

[doncat]

95/75  whew!

[weathermedic]

95/78 HI 111 at my station

[winterwarlock]

94/79/110

[LibertyBell]

14 minutes ago, dWave said:

 Overnight lows matter too. Consistently staying 75+, I assume with high humidity, takes a toll. Remember AC was less widespread then as well. The lack of any time for the human body to recover overnight from the heat increases the risk.

Over an extended period, days with a high low split like 98/68 can be easer to handle then 93/79 for example. Especially in urban areas, as the official temp may not fully capture real world experience inside baking apartment buildings etc. I think a lot of the precautions put in place now to deal with heat became more widespread after the deadly Chicago heat wave. Local govts issuing heat emergencies outside of the NWS warning system, cooling centers etc.

Yes, it's probably why 1,500 NYers died during the 1896 10 day heatwave.

That was before they even had electricity, I can't imagine what that was like.

 

[LibertyBell]

Just now, winterwarlock said:

94/79/110

it's made it to 95 here and tied July 8th!!

[LibertyBell]

3 minutes ago, weathermedic said:

95/78 HI 111 at my station

Yep no sea breeze 95 for both of us on the south shore!!

[LibertyBell]

19 minutes ago, jm1220 said:

And Winter 1779-1780 is when the Continental Army was stationed at Morristown I believe where hundreds died from hypothermia. It was even worse than the previous winter at Valley Forge which is better known. 

Yes, Washington's diary records a lot of the big snowstorms of that winter from Morristown!  Maybe we have annual weather records from Morristown going back even further than Newark?

[weathermedic]

[LibertyBell]

43 minutes ago, bluewave said:

It’s interesting that none of those great Arctic outbreaks of the 1800s could rival February 1934 at Newark. Was the only -14° low temperature and the coldest month at 18.6° since 1843. The only time Newark may have been colder was back in January 1780 when there was a -16° report in NYC.

Time Series Summary for NEWARK LIBERTY INTL AP, NJ - Dec through Feb Lowest Temperatures 
Click column heading to sort ascending, click again to sort descending.

1	1933-1934	-14	0
2	1917-1918	-13	2
-	1865-1866	-13	11
-	1858-1859	-13	11
3	1872-1873	-12	9
-	1856-1857	-12	7
4	1903-1904	-10	0
5	1898-1899	-9	5
6	1984-1985	-8	0
-	1860-1861	-8	5
-	1854-1855	-8	8
-	1851-1852	-8	5
7	1981-1982	-7	0
-	1942-1943	-7	0
-	1880-1881	-7	9
-	1855-1856	-7	6
8	1911-1912	-6	1
9	1913-1914	-5	1
-	1895-1896	-5	4

 

Time Series Summary for NEWARK LIBERTY INTL AP, NJ - Coldest Month of Jan
Click column heading to sort ascending, click again to sort descending.

1	1918	20.1	3
2	1977	20.9	0
3	1857	21.1	5
4	1893	21.5	3
5	1865	21.7	8
6	1904	21.8	0
7	1856	22.3	2
8	1912	22.9	0
-	1867	22.9	0
9	1920	23.0	11
10	1884	23.5	11
-	1875	23.5	4

 

Time Series Summary for NEWARK LIBERTY INTL AP, NJ - Coldest Month of Feb
Click column heading to sort ascending, click again to sort descending.

1	1934	18.6	0
2	1868	21.3	4
3	2015	22.6	0
4	1875	22.7	2
5	1907	22.8	4
6	1905	23.2	0
7	1979	23.5	0
8	1901	23.9	0
-	1885	23.9	7
9	1904	24.0	0
10	1936	24.4	0

 

 

 

Chris do you have the dailies for the big 10 day heatwave in 1896 from Newark's perspective or is Central Park the only surviving dataset from that deadly heatwave that killed 1,500 in the city?

 

[Sundog]

Wow I'm at 98/76 HI 113F. 

There are other nearby stations corroborating these numbers. 

[SI Mailman]

96/78/114

Glad the mail is light today, cause I don’t want to be out in this any longer than I have to be

[LibertyBell]

6 minutes ago, Sundog said:

Wow I'm at 98/76 HI 113F. 

There are other nearby stations corroborating these numbers. 

I'm at 95.1 it's around the same temperature it was here on July 8th, my 4th 95+ of the season.

[Sundog]

Damn @ag3 is 100/77 with a HI of 117F!

[SACRUS]

 

 

Storms have breached the Jersey border

 

 

[LibertyBell]

On 7/21/2025 at 9:28 AM, SACRUS said:

Estimating Central park would be able to get to 100 if EWR: was 105 and LGA was 103 for Friday.  Based off recent years highs (2019, 21, 22, 24,25).

Not going to get there slim chance.

How many times has EWR hit 105 in their entire history? I know they did it twice in 1993 -- it was their previous highest temperature ever recorded.

I think when EWR hits 105, all 4 official sites around the city hit at least 100 -- EWR, NYC, LGA AND JFK ?  Every time it happened?

 

[LoboLeader1]

96F/DP 73/RH/49%. 

Severe Thunderstorm Watch until 9PM this evening.

 

 

[SACRUS]

 

 

2PM Round up Heat is on
 

 

TEB: 98
EWR: 97
LGA: 96
PHL: 95
NYC: 94
ACY: 94
New Brnswck: 94
JFK: 93
BLM: 93
TTN: 93
ISP: 91