TheClimateChanger

Eyeballing it, I think 98/61 looks like a Weathergami. Certainly not much population density there, either way. If it is a Weathergami, that would be 3 new combinations in 4 days with nearly 100 years of records.

Due to the unusual weather conditions, Weathergamis were observed on Friday (89F/49F) and Sunday (96F/58F). Saturday's 94F/53F apparently occurred on one other occasion. I suspect yesterday (98F/61F) must have been close to a Weathergami as well. Will have to keep an eye when that data is released later.

Very impressive stretch at Parkersburg, West Virginia, with new daily records set on 5 of the last 6 days. New record lows set last Wednesday through Friday, and new record highs each of the last two days. The high is likely to approach the record of 100F today, set in 1948, and may tie that value but breaking it is probably unlikely. Saturday was close to the record high [2F shy] and record low [4F], with 35-40F diurnal ranges common over the past week amplified by the extreme drought. Really easy to see the impact of the drought conditions. High temperatures for the summer are 3rd warmest of record, narrowly behind 1934 & 1936. But low temperatures are tied for 27th coolest with several other years.

KPIT is up to 91F again. Still suspect we'll make a run for hottest of the year, probably 93-95F range for the high temperature.

Not quite up to last year's historically high August heat indices in most places, but not far off. Here's Moline's highest heat index readings by hour in the month of August [1929-present]. The 10 a.m. reading of 100F is 5F shy of August 23, 2023.

Looking through the climate numbers for the day and one of the more notable readings was 97F at Traverse City. That was the highest reading there since June 30, 2018, when it reached 98F. It was the highest reading in the month of August since August 8, 2001, when it reached 98F. Furthermore, since 1968, there have only been two days in the month of August on which it was as warm or warmer than today's reading - August 2, 1988, when it reached 98F, and the aforementioned date in 2001.

Wasn't super unexpected to me, although admittedly the official forecast had mid 80s for Allegheny County today. I commented yesterday that it would likely be close to 90F today, based on a review of the models - most of which were showing upper 80s, with the HRRR in the low 90s - and upstream observations with widespread low to mid 90s the prior day. NWS has 92F at the airport each of the next two days... personally, Wednesday looks like the hottest day of the year to me on the short-range modeling. Not sure why the NWS is going so much lower than they did with the June heat wave - maybe concern about clouds and convection, I'm guessing? A number of models have mid to upper 90s for Wednesday, and upstream observations are supportive. 96F in New Philadelphia was a new record, and just 3F shy of the monthly record. Reached at least 98F at Parkersburg, W. Va. for the second straight daily record high, and only 3 or 4F shy of the monthly record. Regardless, if we do 90+ tomorrow, Wednesday and Friday, as per the official forecast, PIT would have 23 90+ days in meteorological summer. That would tie 1966, 1901 & 1884 for 12th most on record. Excluding the suspect 19th century data, only 2 met. summers had more 90+ days since 1900 - 1988 (37) and 1995 (26).

No need to wait now. Up to 90, as of the top of the hour.

Just wait until gets into the HRRR range.

Seems pretty unreasonable to me. There are 4 dates later in the season with 100F+, 3 of which were observed when the official observations were taken at Midway Airport: 101, on 9/1/1953; 101, on 9/2/1953; 100 on 9/7/1960; and 100 on 9/7/1939. Looks like the highest temperature observed at O'Hare Airport on or after today's date is 99F in 1960 & 1985: Not to say it can't happen, but it would almost be without historical precedent.

Is that the same mechanism by which the Saharan dust inhibits tropical storms? Warming aloft from absorbed solar radiation and modest cooling at the surface lowering the lapse rate and resulting in a more stable atmospheric profile?

Off topic, but one hell of a two-week period weatherwise there. Current forecast would suggest the high reaches at least 95F for six consecutive days, which would only be the 3rd time on record it reached 95 or better on 6 or more consecutive days there.

September's data on there hasn't been updated since 2021.

For the record, yes, that was indeed a weathergami at Parkersburg, WV yesterday. Edit: Actually that was Friday’s 89/49. Yesterday’s 94/53 allegedly occurred on two other dates.

On the drought, Zanesville still at 0.16" for the month with 6 days to go. If no rain falls this week, it would be the 5th driest of any month [driest in about 100 years] and easily the driest summer month there. Columbus still at 3rd driest summer [1930, only 0.05" less] and driest since 1933.

Looks like it could be close to 90 tomorrow. Tuesday and Wednesday may approach the hottest temperature of the summer. Wheeling reached 92F both yesterday and today. Zanesville was 94F today, and New Philadelphia reached 93F. Parkersburg had a record high of 96F today, after reaching record lows Wednesday through Friday in the mid to upper 40s. Actually, yesterday was pretty close to both the record high (missed by 2F) and record low (missed by 4F). I'm guessing that had to be a weathergami.

Probably many. There have been 7-day stretches entirely in the month of August in DC where the average maximum over that stretch was less than 70F. As recently as 1992, there was a 7-day stretch with an average maximum lower than yesterday's 76F.

I think he's ranking by unique values, which I've seen @bluewave do in the past. The poster corrected it to 10th place in a follow-up. If so, that's true. There's only 9 lower unique values on record - 67, 68, 69, 70, 71, 72, 73, 74 and 75. Although many of these lower values have been reached scores of times, including multiple times in many prior Augusts. So yes, ties for 10th lowest unique value max temperature, but lower maximum temperatures [between 67 & 75] have occurred on hundreds of dates in the month of August.

Ninth coldest what? I can't figure out what he's talking about. Does he mean the 9th coldest August 20th daily high at National Airport (1945-2024)? Because if that's what he means, even that's incorrect. It tied 1986 & 2000 for the 8th coldest high on August 20th since records were kept at the airport. In the entire threaded record, it ties 1986 & 2000 for 14th chilliest August 20th maximum temperature. It's nowhere near a monthly record. There have been well over 100 days with a max temperature at or below 71F in the month of August in the threaded record - probably several hundreds of days at or below 76F. Since records were kept at the airport (1945-present), it ties numerous other years for 99th coldest August maximum temperature. Where is 9th coldest all-time coming from?

Looks like it already hit 70 in the early hours today. Not sure if it gets back there this afternoon. If we get any sunny intervals, then I think it could hit 71-73F. But if stays overcast and drizzly, then it might hover in the upper 60s the remainder of the day.

Looks like some much-needed rain to hit parts of central and southeast Ohio over the weekend. Has been one of the driest summers on record to date in that part of the subforum, and it looks like dry weather returns after this weekend. Columbus, Ohio [4th driest to date] Zanesville, Ohio [5th driest to date] New Philadelphia, Ohio [driest on record - since 1948] Wheeling, West Virginia [driest on record]

Also, despite the recent cooldown, still in 8th place overall in the threaded record in terms of summer temps to date with only 2 warmer years since 1901 (1934 & 1949). Given the forecast for the next week or so, we will be dropping in these rankings. Pretty much a done deal - barring incredible heat at the end of the month - that we will finish below 1995, and probably even 2016. Edit: Actually looking at yesterday's 8-14 day outlook, CPC gives us slightly elevated odds for below normal continuing right into week 2 [August 22-28]. I do suspect we'll see at least one more heat wave at the tail end of August or in September.

The iPhone weather app would suggest we approach 70 for a high for a few days early next week. Doubt we get there though, as the NWS forecast is generally more moderate with mid 70s, which seems reasonable with the sunshine on Tuesday & Wednesday, and warm/muggy start on Monday. Otherwise, wildfire smoke has created more haze than I would have thought the last couple days. Didn't look too impressive on modeling but it's been hanging low in the atmosphere. Seems thicker up in New England.