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Pittsburgh Summer? 2025


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Revisiting June, finished at 73.1F at PIT, which, as noted, was the warmest since observations have been taken at the airport, and tied for 11th warmest overall.

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Elsewhere across the region, it tied for 4th warmest in the Morgantown area threaded record. It should be noted there is no data for 1943, which appears to have been a very warm month. 1934, which holds the top spot in both the Pittsburgh and Wheeling station threads, is tied for 15th place with 1949 & 2014 (72.6F) in the Morgantown threaded record.

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Dubois, with a shorter POR, finished tied for 4th warmest with 1976. A little skeptical of the ranking for 1976, seeing as that is said to have been the coldest summer on record at PIT, but that's what the official data shows. The record of 69.2F was set just last year.

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Wheeling finished tied with last year for 7th warmest June. There's a pretty big gap in the records here between 1953 and 1998; however, there really only appear to be a few candidate Junes for inclusion on this list in that time frame (1967, 1994, perhaps 1991). Another 0.1F would have raised this year to 4th warmest, as there is currently a 3-way tie for 4th place (1952, 1949, 1921) at 72.9F.

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New Philadelphia, Ohio, another short POR site, finished as 2nd warmest behind 2016. Yes, those 2016 readings were coming in quite high there relative to most places.

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Overall, it was a wet June regionwide, most notably at Morgantown (see below). The 8.65" of rainfall there was good for 4th place overall, with records dating all the way back to 1872 [albeit with some gaps]! 1939 must have been insanely wet. Most other climate sites generally finished between about 12th and 25th place in the ranking of wettest Junes.

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I suspect some areas outside of the official observations, especially in far southwest Pennsylvania and portions of West Virginia, saw 10" or more of rainfall this month.

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It's also the half-way point for 2025. Through the first 6 months, PIT is running 3.8F cooler than last year's record-breaking pace. Still well above the long-term mean, checking in at 33th place in the threaded record (9th at the airport, tied with 1953 - the first full year of records at PIT).

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Similar story at Morgantown. The mean temperature of 50.5F ties for 22nd warmest and is 3.4F cooler than last year's record-pace. This list includes only years with less than 30 missing days.

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Wheeling is currently tied for 11th warmest with 2016, despite a 3.3F dropoff from last year. This ranking is obviously aided by the lengthy gap in the records, as years like 1990, 1991 and 1998 would certainly be in the mix otherwise (perhaps some from the late 80s as well). Also, no temperature records prior to 1900.

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Additionally, the average hourly dewpoint was highest on record for the month of June (since 1945). While the heading indicates Pittsburgh International (PIT), the years prior to 1953 are from hourly observations taken at present-day Allegheny County Airport, as Pittsburgh International Airport did not exist until 1952 [when it was known as the Greater Pittsburgh Airport]. The average hourly dewpoint for the month of June is 57.7F, so last month was nearly 6F higher than the long-term mean.

network:PA_ASOS::station:PIT::season:jun

Top 3, per the .csv file:

2025, 63.548F

1949, 63.546F

2005, 63.166F

 

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21 minutes ago, TheClimateChanger said:

Additionally, the average hourly dewpoint was highest on record for the month of June (since 1945). While the heading indicates Pittsburgh International (PIT), the years prior to 1953 are from hourly observations taken at present-day Allegheny County Airport, as Pittsburgh International Airport did not exist until 1952 [when it was known as the Greater Pittsburgh Airport].

network:PA_ASOS::station:PIT::season:jun

Top 3, per the .csv file:

2025, 63.548F

1949, 63.546F

2005, 63.166F

 

This was also the case at MGW, based on data since 1949 [no data 1955-1972]. Obviously, some bad/missing data for 1979 as well.

network:WV_ASOS::station:MGW::season:jun

Top 3:

2025, 64.468F

1981: 64.238F

2018: 63.248F

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2 hours ago, TheClimateChanger said:

Additionally, the average hourly dewpoint was highest on record for the month of June (since 1945). While the heading indicates Pittsburgh International (PIT), the years prior to 1953 are from hourly observations taken at present-day Allegheny County Airport, as Pittsburgh International Airport did not exist until 1952 [when it was known as the Greater Pittsburgh Airport]. The average hourly dewpoint for the month of June is 57.7F, so last month was nearly 6F higher than the long-term mean.

network:PA_ASOS::station:PIT::season:jun

Top 3, per the .csv file:

2025, 63.548F

1949, 63.546F

2005, 63.166F

 

I believe this.  It has been terribly humid.

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