TheClimateChanger

About as warm as it gets for this time of the day in the month of November. The 3 am, 4 am, and 5 am readings at PIT tied the warmest ever observed during those hours in the month of November.

Same here. Remember filling up all the pumpkin bags with all of the fallen leaves in the weeks prior to Halloween.

So far, I'd say I am doing pretty well with the prediction. The mean low temperature at Cleveland for the first 4 years of the 2020s is 4F above zero. That is solidly Zone 7A, bordering Zone 7B. Other climate locations in northeast Ohio: Akron, 4F; Mansfield, 1F; Youngstown, -1F. Nearby Erie, PA is at 5F.

I predicted this decades ago.

Pittsburgh's also a lot warmer than people think. 25F is the record low at Athens, Georgia, and only 3F below the record for Tallahassee, Florida.

It looks like they have snowfall records back to 1874 on xmACIS2. A trace was also observed in 1874 & 1875. 1874 1875

2020 was very close. Officially, picked up 0.5" on the 2nd, but it fell on the night of the 1st, but after 1 am EDT. I had about an inch that morning at my house. There was very little, if any, snow the remainder of November. But December 1, 2020 opened up with a big storm - officially, 6.8" but more than that north of the airport and city.

Heavy snow here. Ground is covered.

With a chance of snow later on today, figured I'd take a look at Halloween snowfall climatology. Only one year with measurable snowfall (1993), and it was a doozy. However, there have been 10 years in which at least a trace of snowfall was recorded (out of 128 years for which snowfall data is said to be available for October 31). So snowflakes [and/or ice pellets] at some point on Halloween aren't super rare, occurring on average once every 12.8 years historically. Although should snowflakes [and/or ice pellets] be observed today, it would be the third time in the past 12 years. And if we do manage to accumulate a dusting before 1 am EDT, it would be only the second time on record for accumulating snowfall on 10-31.

Some of the 2.6" appears to have fallen yesterday, so it won't all be attributed to the 31st (snowfall was shown as missing from yesterday's climate report). Depending on how much fell yesterday, it will still be second or third highest daily total.

Very impressive swing. From a monthly record high of 92F on the 1st, to a daily record snow depth of 2" on the 31st.

Same analysis at Caribou, ME (CAR) [records dating to January 1939]. There's more of all records with the considerably shorter POR, but same story. 2020 was particularly extreme in both measures compared to other recent years. In 2020, almost one out of every ten days was among the 3 warmest. Here are the number of days at CAR with a high among the top 3 warmest on record, since 2020: 2020: 34 2021: 29 2022: 25 2023: 10 (so far) Here are the number of days at BTV with a low among the top 3 coldest on record, since 2020: 2020: 14 2021: 3 2022: 4 2023: 4 (so far)

Here are the number of days at BTV with a high among the top 3 warmest on record, since 2020: 2020: 25 2021: 21 2022: 21 2023: 17 (so far) Here are the number of days at BTV with a low among the top 3 coldest on record, since 2020: 2020: 2 2021: 0 2022: 0 2023: 1 (so far)

I don't know how this myth has started that I don't give equal time to record cold. Why in the world would I post about a Texas cold snap in a New England subforum? Regardless, to show the folly in this accusation, let's shift back to New England and look at Burlington, Vermont (BTV) on ThreadEx. So far, just this year, there have been 17 days where the maximum temperature has been among the 3 highest of record [dating to 1883]. January 1: 51, 2nd warmest February 10: 45, 3rd warmest [tie] February 15: 57, record warmest February 16: 56, record warmest April 13: 88, record warmest April 14: 77, 3rd warmest April 15: 85, record warmest April 16: 83, 3rd warmest June 1: 96, record warmest June 2: 91, record warmest September 4: 90, 3rd warrmest [tie] September 5: 90, 2nd warmest [tie] September 6: 92, record warmest October 3: 84, record warmest October 4: 86, record warmest *monthly record* October 5: 83, record warmest October 27: 73, 2nd warmest [tie] By comparison, since 1/1/2020 (so nearly 4 full years), there have been only three days in which the low temperature was among the three coldest readings. May 18, 2023: 29, record coldest [tie] September 19, 2020: 34, 3rd coldest [tie] October 31, 2020: 20, 3rd coldest [tie] It's very difficult to give equal time to two things when only one of them occurs with any sort of regularity.

Yesterday was the latest calendar day on record on which the temperature climbed to 30C/86F at Dulles, beating the prior mark by one week. If this pattern had set in a few days later, could have reached or exceeded a monthly record high for the second time in 3 months.

Very impressive heat in Cleveland yesterday. The high of 78 and low of 65 were both the highest on record (tie for the maximum temperature). More notably, the low of 65F has never been exceeded later in the calendar year and only matched twice - November 2, 2016 & incredibly on December 3, 1982. The mean temperature of 71.5F has been exceeded only once later in the calendar year (72.5F, on 11-1-1950) and matched once (11-2-2016). Needless to say, yesterday was about as warm as it gets for this time of the calendar year.

And yet people will complain I don't give the same energy to record cold. Go to ThreadEx and do a Ctrl-F search for 2023, 2022, 2021, and 2020. MKE has not only not had a record low since 2019, it hasn't had a daily low temperature among the bottom three lowest since 2019. Even record/near record low maxima have been exceptionally sparse, with only one tied record since 2019 (2/14/2021): 2023: none; 2022: 39F on 4/27, tied one or more prior years for 3rd coldest, and 2F on 12/23 was second coldest; 2021: 10F on 2/13 was 3rd coldest; and 3F on 2/14 tied 1943 for coldest on record; 2020: 41F on 5/8 was 2nd coldest.

The 82F at MKE was the latest in the year for to reach that temperature, but only just barely. On 10/23, there were two days recorded at 84F (1963 & 1899). Daily record highs drop fairly quickly this time of the year, but there have been 5 later 80+ readings: 81F, on 10/26/1963; 80F, on 10/26/1927; 81F, on 10/27/1927; 81F, on 10/29/1937; and 80F, on 10/31/1950. As you can see from those dates, it was the latest 80F+ reading at MKE since 1963.

Not bad. Looking at ThreadEx, there have only been 3 warmer days later in the year (84, 10/26/1963; 85, 10/30/1950, and 84, 10/31/1950) and one additional 83F reading (10/27/1927). For that matter, there have only been 8 days at or above 80+F after October 24th in recorded history. It was also the latest 80F+ reading at Chicago since 1999, when it reached 80F on 10/28. If this had occurred about a week later, we could have seen a third consecutive month start off with notable warmth. But it looks like November will buck that trend and start off on a chilly note.

Wow, 70 degrees at Burke Lakefront Airport in Cleveland, as of 7 am.

As we head towards winter, it's a good time to review the snowfall history at Pittsburgh. These are all based on single calendar day figures, not 24-hour totals which can span two days or storm totals, for that matter, which can span 2 or even more days. Obviously, the bad thing about this approach is it misses storms spanning multiple days, such as February 5-6, 2010, with a total of 21.1" of snow. There have been 87 calendar days with at least 6.0" of snow; 50 with at least 8.0" of snow; 26 with at least 10.0" of snow; 11 with at least 12.0" of snow; 5 with at least 14.0" of snow; 4 with at least 16.0" of snow; and 2 with at least 18.0" or more of snow. The most snow observed in a calendar day is 23.6" of snow, on March 13, 1993. The second most snow observed in a calendar day is 22.0" of snow, on December 17, 1890. Those are the only 2 calendar days with greater than 1-1/2 feet of snow.

131 calendar days of 7.0"+ snowfall. The most in a calendar year was 6, in 1881.

Wow, I was looking at calendar days with at least 7.0 inches of snowfall and I was surprised at how poorly Columbus, Ohio fares in that department. In the threaded history for the city (1884-present), there have only been 17 calendar days with at least 7.0 inches of snow at Columbus. By comparison, Tri Cities, TN has had 19 in its threaded history, which only dates to 1937. Louisville, KY has had 32 days. Lexington, KY has had 26 days. Cincinnati has had 19 such days. Charleston, WV has had 43 days (since 1903). Clarksburg, WV had 38 such days between 1922 and 1998 [no snowfall records since]. Morgantown, WV - with no snowfall records since 1998 - has had 53 days. Richmond, VA has had 37 such days. Washington, DC 49 days. Knoxville, TN 25 days. Even Raleigh-Durham, NC 25 days. Charlotte, NC 18 days. Chattanooga, TN has had one fewer - at 16 days. Nearby Zanesville - with no snowfall records since at least the late 1990s - has had 27 days. Indianapolis has had 33, nearly twice as many. St, Louis has had 35 - more than twice as many. Even Little Rock, Arkansas and Tulsa, Oklahoma match Columbus's 17 days of 7"+ snowfall. Lubbock, Texas has had 19, while Amarillo, Texas does incredibly well on this metric with 46 such days. Who would think RDU and Charlotte have had more 7"+ calendar days than Columbus, and Little Rock and Tulsa the same number of such days?