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Pittsburgh, Pa Summer 2024 Thread.


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20 minutes ago, TheClimateChanger said:

Wasn’t sure we’d get there today with the cloud cover, but it did reach 90F already. Might be about done though with thickening clouds and even some scattered thundershowers popping.

Still going, now it’s been up to at least 91 for the 4th day in a row. On that note, the only other summer where Pittsburgh International had a 3+ day streak of 91+ in each of the three summer months was…. 1988.

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000
SXUS71 KPBZ 300559
RERPIT

RECORD EVENT REPORT
NATIONAL WEATHER SERVICE PITTSBURGH PA
159 AM EDT FRI AUG 30 2024

...RECORD WARM MINIMUM TEMPERATURE SET AT PITTSBURGH PA...

THE LOW TEMPERATURE AT PITTSBURGH PA YESTERDAY, AUGUST 29TH 2024, 
WAS 74 DEGREES. THIS IS THE WARMEST MINIMUM TEMPERATURE RECORDED ON 
AUGUST 29TH. THE PREVIOUS RECORD OF 73 DEGREES WAS SET IN 1928. 

$$

WM

 

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21 minutes ago, Ahoff said:

Another one.  Has officially hit 90.

 

Going into September, hopefully, this is the last 90 degree day of the year.

Would think an outside shot tomorrow depending on frontal timing, but unlikely especially with the airport being west. I hope we don’t see 90 in September but it’s hard to rule out.

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Haven't looked at this in a little while, but the recent heat wave locked up a top 10 warmest summer at Pittsburgh. Have to suspect that today and tomorrow will raise the August mean sufficiently to result in an increase of at least 0.1F in the summer mean, which would result in a tie or just ahead of 2016 for 8th place overall. Since 1901, only 2016, 1995 & 1934 were hotter in the threaded record [of course, the latter being when the station was still downtown].

image.png.3cd817f746a27b0f698bcbf5e6e11ed2.png

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7 minutes ago, TheClimateChanger said:

Haven't looked at this in a little while, but the recent heat wave locked up a top 10 warmest summer at Pittsburgh. Have to suspect that today and tomorrow will raise the August mean sufficiently to result in an increase of at least 0.1F in the summer mean, which would result in a tie or just ahead of 2016 for 8th place overall. Since 1901, only 2016, 1995 & 1934 were hotter in the threaded record [of course, the latter being when the station was still downtown].

image.png.3cd817f746a27b0f698bcbf5e6e11ed2.png

For those keeping score, this comes on the heel of the warmest spring and fourth warmest winter on record.

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21 minutes ago, TheClimateChanger said:

For those keeping score, this comes on the heel of the warmest spring and fourth warmest winter on record.

Still sitting in 2nd, just behind 1880 for warmest YTD on record and over a degree ahead of 2012, which was the warmest YTD at the airport through 8/29. Remarkably, we are running almost a full 3 degrees ahead of 2023 through 8/29, which is currently the warmest full year on record at the airport.

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On 8/30/2024 at 4:47 PM, TheClimateChanger said:

Haven't looked at this in a little while, but the recent heat wave locked up a top 10 warmest summer at Pittsburgh. Have to suspect that today and tomorrow will raise the August mean sufficiently to result in an increase of at least 0.1F in the summer mean, which would result in a tie or just ahead of 2016 for 8th place overall. Since 1901, only 2016, 1995 & 1934 were hotter in the threaded record [of course, the latter being when the station was still downtown].

image.png.3cd817f746a27b0f698bcbf5e6e11ed2.png

It did indeed tick up to eighth place in the final rankings, albeit just barely. I was thinking it would get a bit warmer yesterday.

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Some numbers from elsewhere in the PBZ County Warning Area:

It was 5th warmest in the threaded record at Morgantown, among years with sufficient data (1892 is missing the entire month of June):

image.png.4b2874b1619a7bef2576b50092bbcaa8.png

It was 2nd warmest in the threaded record at Wheeling [no data for 1954-1997]:

image.png.54453b12ab9639ee529f3c3f79057ebf.png

15th warmest at Zanesville. Most of the warmer summers were prior to the airport site opening.

image.png.3948dabcf534b319aeda708666bea73e.png

Shorter period of record sites:

6th warmest (of 65 years) at New Philadelphia:

image.png.4ee3a19000412ab4c48d04e7fa613e42.png

Warmest summer on record at DuBois (out of 59 years):

image.png.706cb496b604fd0bbb7eeaaa2a10f2c6.png

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Precipitation wasn't particularly noteworthy at PIT, MGW, and DUJ.  Somewhat below the median at the first two, but actually somewhat wetter than usual at DUJ. However, this summer was one of the driest on record in parts of southeast Ohio and northern West Virginia.

At Zanesville, only 0.17" of rain fell in August, which was easily the driest August of record and the 5th driest of any month [1546 months of record] and the driest of any month in about 100 years:

image.png.2b958c967f249dffcb5f8a68a175fc10.png

Driest summer on record at Wheeling, and by a significant margin. Was sitting at 3.66" just a couple days ago. 1879 is missing the entire months of June and July, and 1953 is missing data for the final 17 days of August. 2020 is the closest with full data.

image.png.b59c16ce5de419ee09127cd689c11dc9.png

2nd driest at Zanesville, among years with full data [2002 was drier]. 1948 is missing June and July, and thus should be tossed from the ranking. 1930 is missing scattered data. Sometimes blank data [for no precipitation] is interpreted as missing data, so it may be a legitimate number. There was a significant drought that summer in the region. Third driest if you include 1930.

image.png.dfe40ee6533c1fdb8818116d2461e856.png

Easily the driest on record in the shorter POR at New Philadelphia:

image.png.d30dcd85533421e863f6386717ec357b.png

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September looks to start on a comfortable note, as indicated by @ChalkHillSnowNut.

The final CPC outlook for September issued yesterday shows equal chances for above, below and near normal temperatures and precipitation. Although parts of the region (north of I-80) are slightly favored for drier than normal conditions. Also odds are somewhat elevated for below normal temperatures just to the east of the mountains.

Perhaps our best opportunity for a below normal month since last summer, although with this look [heat and dryness to our west], you have to wonder if there won't be at least one abnormal warm spell later in the month that might keep things on the warm side in the end.

Temperatures

off15_temp.gif

 

Precipitation

off15_prcp.gif

 

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16 minutes ago, TheClimateChanger said:

September looks to start on a comfortable note, as indicated by @ChalkHillSnowNut.

The final CPC outlook for September issued yesterday shows equal chances for above, below and near normal temperatures and precipitation. Although parts of the region (north of I-80) are slightly favored for drier than normal conditions. Also odds are somewhat elevated for below normal temperatures just to the east of the mountains.

Perhaps our best opportunity for a below normal month since last summer, although with this look [heat and dryness to our west], you have to wonder if there won't be at least one abnormal warm spell later in the month that might keep things on the warm side in the end.

Temperatures

off15_temp.gif

 

Precipitation

off15_prcp.gif

 

2017 comes to mind. Here was the CPC outlook for that above-normal September. Oof.

512ED14E-75AA-4316-8C2E-C89696265028.jpeg.9c1de808dd52d448489f47d442ab11fb.jpeg

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On 8/30/2024 at 5:21 PM, TimB said:

Still sitting in 2nd, just behind 1880 for warmest YTD on record and over a degree ahead of 2012, which was the warmest YTD at the airport through 8/29. Remarkably, we are running almost a full 3 degrees ahead of 2023 through 8/29, which is currently the warmest full year on record at the airport.

We might do it. We may break the annual temperature record if the CPC's fall outlook is accurate. Even with the warm bias in the 19th century data, it still used to get cold at times. Because it's not actually normal to go through a whole year without at least one cold month.

Fall 1880 looks like this compared to 1991-2020 normals: September +1.1F; October +0.1F; November -6.9F, and December was -7F. Just a couple of decades ago, this would have been unthinkable.

image.png.42912b3a100a3c5595593d67c24c335c.png

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7 minutes ago, TheClimateChanger said:

We might do it. We may break the annual temperature record if the CPC's fall outlook is accurate. Even with the warm bias in the 19th century data, it still used to get cold at times. Because it's not actually normal to go through a whole year without at least one cold month.

Fall 1880 looks like this compared to 1991-2020 normals: September +1.1F; October +0.1F; November -6.9F, and December was -7F. Just a couple of decades ago, this would have been unthinkable.

image.png.42912b3a100a3c5595593d67c24c335c.png

Nevermind. I guess it got so cold in 1880 that it fell way behind. 1921 is the year to beat at 55.4F. We currently have +0.5F on it.  The rest of the year in 1921 was +5.9F, +0.7F, +2.1F, +0.3F, relative to 1991-2020 normals. Or about 2.2/2.3F above normal. Since the year is 2/3rd of the way through, 2024 could finish about 0.75F +/- cooler the rest of the way and still tie for the record. So we'd need to run roughly +1.5F, more or less, above the normal for the last 4 months, which is not too much to ask.

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On 9/1/2024 at 10:30 AM, TheClimateChanger said:

Overall, CPC forecasts a warmer than normal fall, with no strong signal for precipitation in our region.

I'll take a warm-ish dry fall any year. Really no use for below average temperatures until mid November. I know statistically getting a below average month recently is not an easy task and that's more the point you are making here. From an enjoyment of the season perspective though nothing wrong with mid 70s, low humidity and nights in the 40s imho.

My mind is starting to wonder into the "what will winter be like" thoughts now that we hit September. Looks like La-Nina will be in place. Given all the hype about last winter and all the great "looks", without much scientific backing I'd still give it equal chances of being snowier this winter than last (which isn't a high bar lol).

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33 minutes ago, RitualOfTheTrout said:

I'll take a warm-ish dry fall any year. Really no use for below average temperatures until mid November. I know statistically getting a below average month recently is not an easy task and that's more the point you are making here. From an enjoyment of the season perspective though nothing wrong with mid 70s, low humidity and nights in the 40s imho.

My mind is starting to wonder into the "what will winter be like" thoughts now that we hit September. Looks like La-Nina will be in place. Given all the hype about last winter and all the great "looks", without much scientific backing I'd still give it equal chances of being snowier this winter than last (which isn't a high bar lol).

Maybe someone needs to get an autumn/fall thread going, now that we are into the month of September?

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