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March 2023


Rjay
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The last 2 days of March are averaging   42degs.(35/50) or -6.

Month to date is    44.7[+2.3].       March should end at    44.5[+1.7].

Reached 55 here yesterday.

Today:    44-48, wind nw.- breezy, m. sunny, 37 tomorrow AM.

31*(51%RH) here at 7am{was 47 at midnight}.     32* at 8:30am.         35* at 11am.        38* at 1pm.      40* at 2pm.        43* at 3pm.       46* at 4pm.      48* at 4:30pm.      Reached 49* at 5pm.      44* at 8pm.

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25 minutes ago, CIK62 said:

The last 2 days of March are averaging   42degs.(35/50) or -6.

Month to date is    44.7[+2.3].       March should end at    44.5[+1.7].

Reached 55 here yesterday.

Today:    44-48, wind nw.- breezy, m. sunny, 37 tomorrow AM.

31*(51%RH) here at 7am{was 47 at midnight}.

The last days of March keep trending colder than originally predicted?

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1 hour ago, donsutherland1 said:

Morning thoughts…

Today will be partly sunny, blustery and unseasonably cold. High temperatures will reach the middle and upper 40s in most of the region. Likely high temperatures around the region include:

New York City (Central Park): 52°

Newark: 49°

Philadelphia: 48°

Tomorrow will turn milder but showers will likely arrive. 

Normals:

New York City: 30-Year: 54.9°; 15-Year: 55.1°

Newark: 30-Year: 55.8°; 15-Year: 56.6°

Philadelphia: 30-Year: 58.0°; 15-Year: 58.7°

Don are you confident about that 52 at Central Park?...I was thinking more like 46-47.

 

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2 hours ago, SnoSki14 said:

What a winter out west. Even as we enter April there's still strong troughs digging deep into CA. 

Incredibly persistent pattern. 

30F this morning. Maybe 2-3 more freezes left and that's it until Oct/Nov. 

Super El Niño precipitation amounts with a strong La Niña -PDO and -PNA. Breaking 1983 super El Niño records for snowpack in Utah. Close to super El Niño 1973, 1983, 1998 rain in San Francisco. Almost a super -PNA pattern since December.


ED6B0351-489A-4B9A-89E6-D907CE93ABF8.gif.b7362cdc16969c6e840202add0751e8a.gif

 

 

Time Series Summary for SAN FRANCISCO DOWNTOWN, CA
Click column heading to sort ascending, click again to sort descending.
Rank
Ending Date
Total Precipitation Oct 1 to Mar 30
Missing Count
1 1862-03-30 47.73 0
2 1890-03-30 43.33 3
3 1998-03-30 39.76 0
4 1868-03-30 36.23 0
5 1878-03-30 33.93 0
6 1973-03-30 33.67 0
7 1983-03-30 33.50 0
8 1850-03-30 32.64 0
9 2023-03-30 32.30 1
10 1867-03-30 32.15 0

 

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Snow showers and even a brief gusty snow squall around mid-night.  Coated the grass / deck but just briefly.    Entered into the record as a Trace.

Last flakes of the season.  Onward toward heat and humidity but hopefully no drought conditions for the Summer.  El-Nino looks to kick into high gear per some of the guidance by late Summer and into the Fall.

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1 hour ago, bluewave said:

Super El Niño precipitation amounts with a strong La Niña -PDO and -PNA. Breaking 1983 super El Niño records for snowpack in Utah. Close to super El Niño 1973, 1983, 1998 rain in San Francisco. Almost a super -PNA pattern since December.


ED6B0351-489A-4B9A-89E6-D907CE93ABF8.gif.b7362cdc16969c6e840202add0751e8a.gif

 

 

Time Series Summary for SAN FRANCISCO DOWNTOWN, CA
Click column heading to sort ascending, click again to sort descending.
Rank
Ending Date
Total Precipitation Oct 1 to Mar 30
Missing Count
1 1862-03-30 47.73 0
2 1890-03-30 43.33 3
3 1998-03-30 39.76 0
4 1868-03-30 36.23 0
5 1878-03-30 33.93 0
6 1973-03-30 33.67 0
7 1983-03-30 33.50 0
8 1850-03-30 32.64 0
9 2023-03-30 32.30 1
10 1867-03-30 32.15 0

 

it makes you wonder what the pattern will actually be once there is an actual el nino, let alone a strong one.

 

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NYC is currently tied with 2012 for the warmest January 1st-March 30th period on record.

Click column heading to sort ascending, click again to sort descending.
Rank
Ending Date
Mean Avg Temperature Jan 1 to Mar 30
Missing Count
1 2023-03-30 43.1 1
- 2012-03-30 43.1 0
3 2020-03-30 42.4 0
4 1990-03-30 42.1 0
5 1998-03-30 41.7 0
6 2002-03-30 41.4 0
7 2016-03-30 40.2 0
8 1949-03-30 40.0 0
9 2006-03-30 39.8 0
- 1991-03-30 39.8 0
11 1953-03-30 39.7 0
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15 minutes ago, TWCCraig said:

NYC is currently tied with 2012 for the warmest January 1st-March 30th period on record.

Click column heading to sort ascending, click again to sort descending.
Rank
Ending Date
Mean Avg Temperature Jan 1 to Mar 30
Missing Count
1 2023-03-30 43.1 1
- 2012-03-30 43.1 0
3 2020-03-30 42.4 0
4 1990-03-30 42.1 0
5 1998-03-30 41.7 0
6 2002-03-30 41.4 0
7 2016-03-30 40.2 0
8 1949-03-30 40.0 0
9 2006-03-30 39.8 0
- 1991-03-30 39.8 0
11 1953-03-30 39.7 0

what year ended up the warmest overall?  2012 was pretty hot-- it was in that marvelous string of hot summers

 

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3 hours ago, Brian5671 said:

Have to with the expanded playoffs.   WS goes into Nov.  Someday there will be a MINN-DEN WS that has multiple snowouts

Interestingly enough, the Yankees could have probably hosted 81 games at the Stadium this winter with about the same amount of weather related cancellations as they do in a typical season.

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18 minutes ago, TWCCraig said:

NYC is currently tied with 2012 for the warmest January 1st-March 30th period on record.

Click column heading to sort ascending, click again to sort descending.
Rank
Ending Date
Mean Avg Temperature Jan 1 to Mar 30
Missing Count
1 2023-03-30 43.1 1
- 2012-03-30 43.1 0
3 2020-03-30 42.4 0
4 1990-03-30 42.1 0
5 1998-03-30 41.7 0
6 2002-03-30 41.4 0
7 2016-03-30 40.2 0
8 1949-03-30 40.0 0
9 2006-03-30 39.8 0
- 1991-03-30 39.8 0
11 1953-03-30 39.7 0

In this list, the years with scorching summers are 2012, 2002, 1991, 1953.  1953 had our longest heat wave on record (late August into September) with multiple days above 100 and the highest September temperature (102) on record. 1991 was the first year with 39 90+ days at NYC, that was tied 2 years later in 1993.

 

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6 minutes ago, coastalplainsnowman said:

Interestingly enough, the Yankees could have probably hosted 81 games at the Stadium this winter with about the same amount of weather related cancellations as they do in a typical season.

Yep our winter was really like an extended autumn...

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@bluewave posted this table:

Time Series Summary for SAN FRANCISCO DOWNTOWN, CA
Click column heading to sort ascending, click again to sort descending.
Rank
Ending Date
Total Precipitation Oct 1 to Mar 30
Missing Count
1 1862-03-30 47.73 0
2 1890-03-30 43.33 3
3 1998-03-30 39.76 0
4 1868-03-30 36.23 0
5 1878-03-30 33.93 0
6 1973-03-30 33.67 0
7 1983-03-30 33.50 0
8 1850-03-30 32.64 0
9 2023-03-30 32.30 1
10 1867-03-30 32.15 0

---------------------------------

 I have some additional observations regarding this table of highest SF 10/1-3/31 precip amounts based on Eric Webb's ENSO tables that go back to 1850:

- In addition to the super-strong El Niños of 1997-8, 1982-3, and 1972-3 being listed, there's also 1877-8 in there at #5. That's intuitive since it also was a super-strong El Niño, even stronger than the four since 1972-3 being that it peaked at +2.9. So, 4 of the wettest 7 were super-strong El Niños.

- But 2023-4 wasn't the only La Niña in this top 10 wettest list. The 2nd wettest, 1889-90, was La Niña. Not just that it was La Niña, it dipped to -1.4 making it at the time the strongest La Niña since at least 1849-50 and significantly stronger than the current one.

- Also, the 8th wettest (1849-50) was a La Niña that dipped to -1.2.

- So, in addition to the intuitive four super-strong El Niños being in there, almost as many somewhat counterintuitive non-weak La Niñas (3) also made the top 10.

---------------------

Eric Webb's ENSO tables (these go back to 1850):

https://www.webberweather.com/ensemble-oceanic-nino-index.html

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1 hour ago, GaWx said:

@bluewave posted this table:

Time Series Summary for SAN FRANCISCO DOWNTOWN, CA
Click column heading to sort ascending, click again to sort descending.
Rank
Ending Date
Total Precipitation Oct 1 to Mar 30
Missing Count
1 1862-03-30 47.73 0
2 1890-03-30 43.33 3
3 1998-03-30 39.76 0
4 1868-03-30 36.23 0
5 1878-03-30 33.93 0
6 1973-03-30 33.67 0
7 1983-03-30 33.50 0
8 1850-03-30 32.64 0
9 2023-03-30 32.30 1
10 1867-03-30 32.15 0

---------------------------------

 I have some additional observations regarding this table of highest SF 10/1-3/31 precip amounts based on Eric Webb's ENSO tables that go back to 1850:

- In addition to the super-strong El Niños of 1997-8, 1982-3, and 1972-3 being listed, there's also 1877-8 in there at #5. That's intuitive since it also was a super-strong El Niño, even stronger than the four since 1972-3 being that it peaked at +2.9. So, 4 of the wettest 7 were super-strong El Niños.

- But 2023-4 wasn't the only La Niña in this top 10 wettest list. The 2nd wettest, 1889-90, was La Niña. Not just that it was La Niña, it dipped to -1.4 making it at the time the strongest La Niña since at least 1849-50 and significantly stronger than the current one.

- Also, the 8th wettest (1849-50) was a La Niña that dipped to -1.2.

- So, in addition to the intuitive four super-strong El Niños being in there, almost as many somewhat counterintuitive non-weak La Niñas (3) also made the top 10.

---------------------

Eric Webb's ENSO tables (these go back to 1850):

https://www.webberweather.com/ensemble-oceanic-nino-index.html

Those Nina’s must have been way negative PNA ones like this season where the trough and storms were deep enough to slam into CA. 

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16 minutes ago, jm1220 said:

Those Nina’s must have been way negative PNA ones like this season where the trough and storms were deep enough to slam into CA. 

 Do you or does anyone else know where to find PNA or PDO data for individual months covering 1850-1899?

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