Historic Record of Early Season Cold




early season cold

With temperatures predicted to fall to near freezing for the first time this week for the fall season, I thought it might be interesting to take a look at the incidence of early season cold, and the average on when it tends to arrive.

Here are the earliest dates on record for the following:

Temperatures Below 40 and Temperature Range of Observed Dates
1. 8/29/1965: 39
2. 9/8/1951: 39
3. 9/9/1883: 39
4. 9/13/1964: 38
5. 9/14/1902, 9/14/1923, 9/14/1953, 19/14/1975: 38-39
6. 9/17/1959: 37
7. 9/20/1896, 9/20/1956, 9/20/1962: 37-39
8. 9/21/1889, 9/21/1897, 9/21/1991: 37-38
9. 9/22/1918, 9/22/1974, 9/22/1976, 9/22/1995: 37-38
10. 9/23/1885, 9/23/1913, 9/23/1963, 9/23/1967, 9/23/1981, 9/23/1989: 35-39

Average Date of First Under-40 Temp By Decade (1878-2014)
2010s: October 11th
2000s: October 8th
1990s: October 2nd
1980s: September 30th
1970s: October 1st
1960s: September 25th
1950s: September 25th
1940s: September 30th
1930s: October 11th
1920s: October 2nd
1910s: October 9th
1900s: October 5th
1890s: October 1st
1880s: October 2nd
1870s: October 1st

Highs Below 32
1. 10/30/1917: 32
2. 11/3/1951, 11/3/1966: 28-29
3. 11/4/1991: 27
4. 11/6/1967: 31
5. 11/7/1971: 31
6. 11/8/1976: 32
7. 11/10/1913: 27
8. 11/12/1920, 11/12/1921, 11/12/1932: 30-32
9. 11/13/1911, 11/13/1919, 11/13/1986, 11/13/1996: 25-32
10. 11/15/1880, 11/15/1893, 11/15/1916, 11/15/1933, 11/15/1940, 11/15/1969: 24-32

Average Date of First 32 or Below High By Decade
2010s: December 4th
2000s: December 2nd
1990s: December 7th
1980s: November 28th
1970s: November 29th
1960s: November 23rd
1950s: November 26th
1940s: December 2nd
1930s: November 27th
1920s: November 28th
1910s: November 22nd
1900s: November 30th
1890s: November 25th
1880s: November 30th
1870s: December 4th

Lows Below 32
1. 9/21/1962: 31
2. 9/29/1961: 32
3. 9/30/1888, 9/30/163: 31-32
4. 10/1/1899: 30
5. 10/2/1886, 10/2/1908, 10/2/1974: 31-32
6. 10/3/1975, 10/3/1981, 10/3/2003: 32
7. 10/4/1952, 10/4/1987: 29-32
8. 10/5/1965, 10/5/1968: 31-32
9. 10/6/1892, 10/6/1964, 10/6/1980, 10/6/1988: 30-31
10. 10/7/1889, 10/7/1935: 30-31

Average Date of First 32 or Below Low By Decade
2010s: October 24th
2000s: October 26th
1990s: October 22nd
1980s: October 17th
1970s: October 17th
1960s: October 8th
1950s: October 22nd
1940s: November 3rd
1930s: October 24th
1920s: October 28th
1910s: October 31st
1900s: October 24th
1890s: October 20th
1880s: October 20th
1870s: October 26th




The 1901 Mega Cold Front



1901 mega cold front

The 1901 mega cold front was a massive wake-up call after a relatively tranquil, if not cool, fall. Temperatures through November and early December 1901 had been persistently below normal. 24 days in November had been below normal, and but for a few days very early in December, this pattern continued. However, beginning on December 11th, temperatures began to rise ahead of an approaching weather system. By the 13th, temperatures reached record highs in Columbus when they spiked at 65 degrees. The following day started equally warm with a record high of 65. However, a change was coming.

To the northwest of Ohio, temperatures were plunging rapidly as a deep, cold high pressure system was being pulled south. Dispatch headlines warned of the record-breaking cold.

A powerful cold front would move through late on the 14th, and temperatures began to plummet. By midnight, the temperature had dropped all the way down to just 14 degrees, a single day drop of 51 degrees! A driving rain accompanied the frontal passage, but quickly changed over to heavy snow that accumulated 3″-5″ across the area.

On the 15th, the temperature continued to fall, albeit more slowly, and by midnight the reading was -4. This mega-cold front had produced a 69-degree total drop in Columbus, which made it one of the strongest cold fronts ever to move through the Ohio region.

The weather map on December 14, 1901, as the front began pushing through Ohio.

The front would bring a major pattern change. Every day from the 15th-21st featured highs in the teens, which set many daily low maximum records, some of which still stand more than 100 years later.

The winter of 1901-02 was generally cold and snowy in the Ohio Valley, but no future front that winter would come close to December 14-15th of 1901.

To view more local and current weather, visit: Wilmington National Weather Service
And for more historic December records, check out: December Weather Records