Hoosier Posted November 27, 2015 Share Posted November 27, 2015 This month is going to end up with a rather unusual combination of being significantly warmer than average, yet snowy, for a number of areas. Here are some warm, snowy Novembers for Chicago...criteria I used was at least 2" of snow (November avg for Chicago is 1.2") AND temps more than 1 degree above average. Not many years on the list. Add your city of choice if you'd like. November 1975: 10.8", +6.8F November 1953: 7.6", +4.1F November 2004: 5.1", +3.4F November 1941: 5.2", +2.9F November 1927: 4.9", +2.9F November 1954: 5.7", +2.2F November 1978: 7.1", +2.1F November 1906: 2.8", +1.5F November 2015 stands at 11.2", +3.6F as of the 25th. Link to comment Share on other sites More sharing options...
michsnowfreak Posted November 27, 2015 Share Posted November 27, 2015 For Detroit I also used Novembers with 2"+ snow (avg 1.4") AND departures of +1F or warmer. very small list. For continuity I will use departures based off 1981-2010 normals. The list is small as it, and these are using very generous perameters for "warm & snowy". Nov. 1902: 5.1", +5.4F Nov. 1913: 3.6", +2.1F Nov. 1927: 3.8", +2.0F Nov. 1938: 2.7", +1.2F Nov. 1953: 3.0", +3.0F Nov. 1958: 4.5", +1.4F Nov. 1964: 2.6", +3.4F Nov. 1975: 6.5", +5.3F Nov. 2005: 4.3", +1.7F Nov. 2015: 6.2", +4.5F thru 11/26 When I look at a more realistic combo of warm and snowy (4"+ AND +2F+)....list is nearly nonexistent Nov. 1902: 5.1", +5.4F Nov. 1975: 6.5", +5.3F Nov. 2015: 6.2", +4.5F thru 11/26 Link to comment Share on other sites More sharing options...
DAFF Posted November 27, 2015 Share Posted November 27, 2015 More anomalies heading into the winter season.... interesting. Can't wait for the next set. Link to comment Share on other sites More sharing options...
Geos Posted November 27, 2015 Share Posted November 27, 2015 Just goes to show everyone, you can have a mild winter month (or in this case autumn month) and still get above normal snowfall. Link to comment Share on other sites More sharing options...
Powerball Posted November 27, 2015 Share Posted November 27, 2015 For Detroit I also used Novembers with 2"+ snow (avg 1.4") AND departures of +1F or warmer. very small list. For continuity I will use departures based off 1981-2010 normals. The list is small as it, and these are using very generous perameters for "warm & snowy". Nov. 1902: 5.1", +5.4F Nov. 1913: 3.6", +2.1F Nov. 1927: 3.8", +2.0F Nov. 1938: 2.7", +1.2F Nov. 1953: 3.0", +3.0F Nov. 1958: 4.5", +1.4F Nov. 1964: 2.6", +3.4F Nov. 1975: 6.5", +5.3F Nov. 2005: 4.3", +1.7F Nov. 2015: 6.2", +4.5F thru 11/26 When I look at a more realistic combo of warm and snowy (4"+ AND +2F+)....list is nearly nonexistent Nov. 1902: 5.1", +5.4F Nov. 1975: 6.5", +5.3F Nov. 2015: 6.2", +4.5F thru 11/26 I'm not sure what it shows for Chicago, but for Detroit, most of those combined warm / snowy Novembers also gave way to winters with average / above average snowfall. EDIT: And what's even more crazy is that of the top 10 warmest Novembers that were snowy (1902 and 1975), 1975 was a strong La Nina. On the flip side though, 1902 was also a strong El Nino (51.3" total for the season succeeding a top 20 coldest Summer). Link to comment Share on other sites More sharing options...
michsnowfreak Posted November 27, 2015 Share Posted November 27, 2015 Just goes to show everyone, you can have a mild winter month (or in this case autumn month) and still get above normal snowfall.I can find TONS of mild winter months with above normal snow and cold winter months with below normal snow. But it's crazy how rare the combination we have experienced in November 2015 is! Link to comment Share on other sites More sharing options...
michsnowfreak Posted November 27, 2015 Share Posted November 27, 2015 I'm not sure what it shows for Chicago, but for Detroit, most of those combined warm / snowy Novembers also gave way to winters with average / above average snowfall. EDIT: And what's even more crazy is that of the top 10 warmest Novembers that were snowy (1902 and 1975), 1975 was a strong La Nina. On the flip side though, 1902 was also a strong El Nino (51.3" total for the season succeeding a top 20 coldest Summer). Nice research! Always good to have someone else research the stats too ☺ Link to comment Share on other sites More sharing options...
Hoosier Posted November 27, 2015 Author Share Posted November 27, 2015 I'm not sure what it shows for Chicago, but for Detroit, most of those combined warm / snowy Novembers also gave way to winters with average / above average snowfall. EDIT: And what's even more crazy is that of the top 10 warmest Novembers that were snowy (1902 and 1975), 1975 was a strong La Nina. On the flip side though, 1902 was also a strong El Nino (51.3" total for the season succeeding a top 20 coldest Summer). Out of the 8 years I posted for Chicago, it's an even split as far as above/below average snowfall for winter. Link to comment Share on other sites More sharing options...
buckeye Posted November 27, 2015 Share Posted November 27, 2015 A single quick-hitting, (albeit major), event encompassing a relatively narrow geographic swath is probably not going to hold too much weight as far as climo analogs. Something like this is much more anecdotal. Link to comment Share on other sites More sharing options...
michsnowfreak Posted November 27, 2015 Share Posted November 27, 2015 A single quick-hitting, (albeit major), event encompassing a relatively narrow geographic swath is probably not going to hold too much weight as far as climo analogs. Something like this is much more anecdotal.I agree....though I hold the same mindset about strong ninos in general because it's such a small sample size with wildly varying results. Link to comment Share on other sites More sharing options...
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