Thanksgiving Day Historic Weather and Climatology

*Reposted from 2013, updated through 2015.

Normals *1981-2010
High: 48
Low: 33
Mean: 40.5
Precipitation: 0.11″
Snowfall: 0.1″

Top 10 Coldest Highs
1. 1930: 12
2. 1936: 26
3. 1880, 1903, 1905: 27
4. 1938: 28
5. 1892, 1898: 29
6. 1881: 30
7. 1945, 2002, 2013: 32
8. 1886, 1889, 1890, 1929, 1958: 33
9. 1882, 1885, 1901, 2014: 34
10. 1912, 1947, 1956, 1982, 2000: 35

Top 10 Coldest Lows
1. 1930: 3
2. 1930, 2005: 15
3. 1929, 1984: 16
4. 2000: 17
5. 1880, 1881, 1892, 1894, 1958: 18
6. 1901, 1905, 2002: 19
7. 1898, 1936, 1938, 1950, 1982, 1989, 1996: 20
8. 1911, 1956, 2013: 21
9. 1882, 1886, 1912, 1945: 22
10. 1994, 2008: 23

Top 10 Warmest Highs
1. 1896: 70
2. 2015: 65
3. 1915, 1940: 64
4. 1879, 1908, 1981, 2007, 2012: 63
5. 1966, 1968, 1973, 1979: 62
6. 1918, 1941: 61
7. 1914, 1927, 1983: 60
8. 1933: 59
9. 1899, 1957: 58
10. 1921, 1943, 1990, 2010: 57

Top 10 Warmest Lows
1. 1979: 53
2. 1896: 52
3. 1940: 51
4. 1957: 49
5. 1879: 48
6. 1934, 1966, 2015: 47
7. 1968: 46
8. 1913, 1933, 1978, 1990, 2003: 43
9. 1899, 1927, 1961: 42
10. 1908, 1951, 1987, 1991, 1998: 41

Top 10 Wettest
1. 2010: 1.76″
2. 1961: 1.58″
3. 1968: 1.22″
4. 1990: 0.71″
5. 1921, 1925: 0.70″
6. 1926: 0.69″
7. 1980: 0.65″
8. 1887: 0.60″
9. 1957: 0.59″
10. 1951: 0.49″

Top 10 Snowiest
1. 1880: 3.2″
2. 1950: 1.1″
3. 1938: 0.8″
4. 1959: 0.7″
5. 1889: 0.4″
6. 1945, 1957: 0.3″
7. 1890, 1954, 2005: 0.2″
8. 1953, 2004: 0.1″
9. Multiple: Trace
10. Multiple: 0


Most Snow on the Ground

1959: 1″
2013: 1″
Trace: Multiple

March 7-8, 2008- Columbus’ Greatest Snowstorm

**Originally posted on 12/29/12.
On the eve of the anniversary of Columbus’ biggest snowstorm, I thought I would repost this. Makes you appreciate just how mild and uneventful Winter 2015-2016 has been, doesn’t it?

More than one week prior to the Blizzard of 2008, models had been hinting at a significant storm somewhere in the eastern US. Initially, models took the storm up the East Coast, but as the storm neared, models moved it further and further west and settled upon a track just west/just along the spine of the Appalachians. The track waffled for days, but never strayed far from the Appalachian track. Because the storm was originating near the Gulf of Mexico, models were showing the storm pulling vast amounts of moisture north into cold air over the Ohio Valley. Simply put, the track and conditions were being forecast to be perfect for a significant Ohio snowstorm.

Local forecasters, however, weren’t buying it… at least not at first. Four days before the storm, neither the NWS nor the television forecasters were calling for a significant event. The winter of 2007-08 had brought several storm busts, and none of them seemed ready to buy into another one. So right up to 24-36 hours before the event began, forecasters were calling for 6″ maximum north and west of the I-71 corridor with a mix along the corridor and mostly rain to the south and east. So, right up until the end, many Ohioans were led to believe that this would be a large, but still a run-of-the-mill, snow event.

My personal account of the storm:

On Thursday, March 6th, I worked a 12-hour day at my store. Customers were talking about forecasts of 4-8″, which in central Ohio is significant in and of itself. We typically get one or two 6″ storms, but rarely up to 8″ and almost never more than that. In fact, in all of Columbus history, there have been less than a dozen snow events that broke double digits. Still, in the talking there were whispers that the storm would be more significant. By Thursday night when I arrived home, I discovered the radar was lit up over the South with a growing area of precipitation heading north. Temperatures had already cooled into the low 30s as a cold front had moved through during the day. Forecasts had changed late in the afternoon, and there were many calls of 6-10″ along I-71 by Sunday.

Friday, March 7th was my day off, and I woke up before 8am in the excitement and inticipation of the impending snow. The radar was showing returns north of the Ohio River then and it was already snowing in Cincinnati. Finally, at 9:05am, flurries began to fall and quickly intensified to a steady, windblown snow. A 9:30, I left the house to go to the store. By the time I reached it, the snow had turned heavy and was accumulating quickly. Visibility had dropped to a 1/4 mile at times and many roads were already snowcovered by the time I reached home.

The snow continued throughout the day and forecasts kept changing, finally settling on 10-15″ along the I-71 corridor with little to no mixing. Meanwhile, the snow continued into the evening and overnight hours of the 7th. Although it did lighten somewhat towards midnight, it never completely stopped. By midnight, in any case, 5-7″ had fallen throughout Columbus and central Ohio, which set a daily record.

Saturday, March 8th dawned very wintry. By dawn, no less than 10″ was on the ground and the snow was continuing to fall heavily. Overnight, blizzard warnings had gone up for all of the NWS Wilmington forecast zone as winds were expected to increase during the day. Winds were generally sustained near 20mph in the morning and increased during the late morning/early afternoon. Heavy snow and winds combined to create total whiteout conditions at times, and every county along I-71 from Cincinatti to Cleveland went under a level 2 or level 3 snow emergency.

At 11am, I went for a walk in the snow. It was still falling heavily and roads were nearly impassable with deep snow. Cars in some cases were buried in snow.

By 2pm, a break in the snowfall came as the low moved to the east of Ohio. When it moved into New York, wraparound snow moved back into the area for 3-4 more hours before ending by 6:30pm Saturday afternoon. The sun even poked through the clouds as it set, producing a very picturesque and beautiful winter scene. A fitting end to the day.

All in all, it was a record setting snowstorm all across the state. Columbus’ 20.5″ of snowfall, including 15.5″ on Saturday alone, was the greatest snowstorm of all time for the city. It also established the greatest 24-hour snowfall and the greatest snow depth ever recorded at 18″. No part of the state was spared, as all major cities except Toledo had 10″ or more. Drifts of 5-7 feet deep were reported in many areas.

The storm also brought some areas of the state to record territory in total seasonal snowfall.

Incidentally, 30 years and 2 months prior, the Great Blizzard of 1978 struck. It is somewhat of note that Ohio’s greatest blizzards on record occurred during the “8″ years. 1918, 1978, and now 2008.

The first image below is a model snow depth forecast ending on March 9th. The second is a photo of the heavy snow in Columbus during the evening of the 7th.
Forecasted snowfall-March 5, 2008
382008_1.gif

Here are some videos during the storm.
Dayton Area
https://youtu.be/sEJ5diRfP88
Cleveland Area
https://www.youtube.com/watch?v=pxS60SYXn24
Columbus
https://www.youtube.com/watch?v=EpgKmawafwk

Worst Winters of All Time?

As summer slowly approaches its inevitable end, thoughts of winter have started to creep into our minds. The last two winters seemed particularly harsh, and questions were often asked as to their historic status as well as whether another bad winter was on the way. Ask any older person in Ohio, and the winters between 1976 and 1979 will often come up. But do they really deserve their reputations? To find out, I came up with a ranking system for meteorological winter only- December through February. Here was the criteria:

Temperature: # of 32 or Below Highs, # of 32 or Below Lows, # of 0 or Below Highs, # of 0 or Below Lows: Each earned the winter a point for each day that featured these conditions.
# of 60 or Above Highs and # of 50 or Above Lows meant a point was removed for each occurrence.

Precipitation: # of Days with Measurable Snowfall, # of 1″+ Snow Days, # of 2.5″+ Snow Days, # of 5″+ Snow Days, # of 10″+ Snow Days as well as # of Measurable Precipitation Days all counted as 1 point for each occurrence.

I then added the temperature and precipitation points together to come up with a ranking for how miserable each winter really was.

Here are the 30 worst winters of all time and their total points.

1. 1976-1977: 240
2. 1977-1978: 238
3. 1969-1970: 230
4. 2002-2003: 228
5. 1978-1979: 226
6. 1880-1881: 225
7. 1917-1918: 223
8. 1935-1936: 220
9. 2013-2014: 219
10. 1892-1893, 1962-1963: 218
11. 1909-1910: 217
12. 1995-1996, 2009-2010: 208
13. 2010-2011: 207
14. 1903-1904: 204
15. 1981-1982: 202
16. 1911-1912, 1963-1964: 197
17. 1886-1887, 1919-1920: 196
18. 1904-1905: 195
19. 1984-1985: 194
20. 1916-1917: 193
21. 1894-1895: 191
22. 1883-1884: 189
23. 2000-2001: 188
24. 1947-1948, 1961-1962: 187
25. 1993-1994: 186
26. 1884-1885, 1939-1940: 185
27. 1983-1984, 1987-1988: 183
28. 1902-1903, 2014-2015: 182
29. 1954-1955: 180
30. 1878-1879, 1882-1883, 1960-1961, 1985-1986, 2003-2004, 2008-2009: 179

Do any of these surprise you? Both 2013-2014 and 2014-2015 are in the top 30 worst, but only 2013-2014 is in the top 10. In fact, other recent winters like 2000-2001, 2002-2003, 2009-2010 and 2010-2011 are all ranked worse than last winter. There have been a surprising number of recent winters in the top 30, however. There have been 8 total since 2000. No other similar time frame has produced as many.

And here are the 30 best winters (if you like warm, snowless, dry winters, that is).

1. 1931-1932: 74
2. 1889-1890: 75
3. 1879-1880: 86
4. 1997-1998: 102
5. 1881-1882, 1943-1944: 111
6. 2001-2002: 112
7. 1996-1997: 115
8. 1948-1949, 1953-1954: 118
9. 1941-1942, 1982-1983: 120
10. 1918-1919: 122
11. 1936-1937: 123
12. 1932-1933, 1991-1992: 124
13. 1930-1931: 125
14. 1905-1906, 1972-1973: 126
15. 1949-1950: 128
16. 1897-1898, 1986-1987: 129
17. 2011-2012: 130
18. 1938-1939: 131
19. 1937-1938: 134
20. 1908-1909, 1920-1921, 2005-2006: 135
21. 1924-1925: 137
22. 1896-1897: 138
23. 1927-1928, 1929-1930, 1940-1941, 1990-1991: 139
24. 1952-1953: 140
25. 1921-1922, 1945-1946, 1998-1999: 141
26. 1988-1989: 143
27. 1891-1892: 144
28. 1946-1947, 1971-1972: 145
29. 1912-1913, 1934-1935: 147
30. 1923-1924, 1992-1993: 148

Look how many of the warmest/least snowy occur between 1920 and 1945. Historically, this period had the fewest number of cold and/or snowy winters on record of any such 25-year period.

And what about winter 2015-2016? Well, that remains to be seen. However, the developing strong El Nino suggests a warmer than average winter. However, factors such as its position (west or east-based) as well as the PDO could throw some wrenches into that standard El Nino forecast. Either way, it will likely not be a top 30 worst.

Winter 2014-2015: A Look Back- November 2014

While it’s still possible to get snow into April, winter is essentially over for one more year. For the second year in a row, winter was colder and snowier than normal, so let’s look at the monthly play-by-play as well as the final stats.

November 2014
First, a reminder of November normals.
High: 52.6
Low: 36.1
Mean: 44.4
Precipitation: 3.20″
Snowfall: 0.9″
Snow Depth: 0.0″

November 2014 Average High: 45.7
1878-2014 Ranking: 10th Coldest
Departure from Normal: -6.9

November 2014 Average Low: 30.0
1878-2014 Ranking: 6th Coldest
Departure from Normal: -6.1

November 2014 Mean Temperature: 37.8
1878-2014 Ranking: 7th Coldest
Departure from Normal: -6.6

Coldest November 2014 High: 19 on the 18th
1878-2014 Ranking: 5th Coldest
The 19 recorded on the 18th was the record coldest high ever recorded for the date, beating the previous 1903 record by a full 7 degrees!
Other near record low highs:
33 on the 17th. 3rd coldest daily high for the date.
27 on the 21st. 3rd coldest daily high for the date.

Coldest November 2014 Low: 12 on the 18th.
1878-2014 Ranking: 8th Coldest
The 12 recorded on the 18th was the 2nd coldest low ever recorded for the date.
Other near record lows:
13 on the 19th. 2nd coldest low for the date.
14 on the 21st. 2nd coldest low for the date.

Number of Highs 32 Degrees or Below: 4
1878-2014 Rank: 5th Highest

Number of Lows 32 Degrees or Below: 19
1878-2014 Rank: 4th Highest

November 2014 was clearly very cold historically, coming in as a top 10 coldest ever.

The month overall was rather dry, with just 1.46″ of precipitation, which was 1.74″ below normal. This was the 22nd driest November since 1878.

November 2014 Precipitation Days: 20
1″+ Daily Precipitation Days: 0
0.5″+ Daily Precipitation Days: 0
0.25″+ Daily Precipitation Days: 3

Snowfall, despite the dry month, came in at a bit above normal, at 4.1″. Still, this was the 15th snowiest November on record, as the graph shows.

Greatest November 2014 Daily Snowfall: 3.8″ on the 17th.
1878-2014 Rank: 10th Greatest
The 3.8″ on the 17th was also the 2nd highest total for the date.

Snowfall Days: 9
1″+ Snowfall Days: 1
2.5″+ Snowfall Days: 1
5″+ Snowfall Days: 0

Greatest Daily Snow Depth: 3″ on the 18th and 19th.
Average Monthly Snow Depth: 0.4″

Questions Answered: Columbus Snowfall By Season

I get *tons* of searches for Columbus snowfall history, and while I’m still building up individual monthly records in this regard, here are the season snowfall totals for every season since 1878-79.



style="display:inline-block;width:336px;height:280px"
data-ad-client="ca-pub-4864697986057597"
data-ad-slot="6970906667">