Ottawa Blizzard Posted March 10, 2012 Share Posted March 10, 2012 I've noticed that March 1945 was exceptionally warm in Ontario, and I'm presuming the NE and Midwest US as well, with temperatures close to to the mid 70s by mid month. It looks like it could be the record to beat, and that we could actually do that this year. May 1945 turned out quite cool and wet from what I can see. Does anyone here have more information about the spring of 1945? Link to comment Share on other sites More sharing options...
donsutherland1 Posted March 10, 2012 Share Posted March 10, 2012 I've noticed that March 1945 was exceptionally warm in Ontario, and I'm presuming the NE and Midwest US as well, with temperatures close to to the mid 70s by mid month. It looks like it could be the record to beat, and that we could actually do that this year. May 1945 turned out quite cool and wet from what I can see. Does anyone here have more information about the spring of 1945? For most eastern North American cities with long temperature records i.e., Toronto, Ottawa, New York, Philadelphia, March 1945 may be out of reach. The March 15-31, 1945 period was historically warm. The exceptional to historic warmth was remarkably sustained. It should be noted that March 1921 was warmest in Philly. Link to comment Share on other sites More sharing options...
Roger Smith Posted March 10, 2012 Share Posted March 10, 2012 The warmth in 1945 continued to about April 13th then a much colder regime developed. Toronto had a trace of snow on June 1st, the latest such report on record (1840 to present), and some daily highs in southern Ontario around or below 50F in the first few days of June (a notable cold spell that began in late May). March 1946 was just about as warm as March 1945 and had the all-time monthly record for Toronto (80 F) which may have been eclipsed in recent years. The warm spell in mid-March of 1990 is also a historic anomaly that produced such noteworthy records as 82 F at Rochester, NY. I can recall seeing a backyard thermometer reading well into the 70s F with snow still melting in the shade (near Peterborough ON) during that 1990 warm spell. Link to comment Share on other sites More sharing options...
RodneyS Posted March 10, 2012 Share Posted March 10, 2012 For most eastern North American cities with long temperature records i.e., Toronto, Ottawa, New York, Philadelphia, March 1945 may be out of reach. The March 15-31, 1945 period was historically warm. The exceptional to historic warmth was remarkably sustained. March 1945 in Washington, DC averaged a record 56.2 degrees versus the recent (1981-2010) normal of 46.9 degrees. So, it will be a difficult record to beat, but not totally out of reach based upon current projections. Link to comment Share on other sites More sharing options...
uncle W Posted March 11, 2012 Share Posted March 11, 2012 Mar 45 and 46... Link to comment Share on other sites More sharing options...
Ellinwood Posted March 11, 2012 Share Posted March 11, 2012 Mar 45 and 46... Bring it on... Link to comment Share on other sites More sharing options...
donsutherland1 Posted March 11, 2012 Share Posted March 11, 2012 Here are some highlights from March 1945 in New York City: Mean temperature: 51.1° (2nd highest: 49.8°, 1946; 3rd highest: 48.4°, 1921) Standardized mean temperature: 2.596 standard deviations above the 1869-2011 mean (99.74th percentile) 3/15-31 timeframe: Average high: 69.3° Average low: 48.2° Mean: 58.7° 3/25-31 timeframe: Average high: 73.6° Average low: 53.4° Mean: 63.5° Highest: 86°, 3/29 (still the all-time monthly record) Highs: 80° or above: 3 Highs: 70° or above: 7 Highs: 60° or above: 16 Highs: 50° or below: 11 Lowest maximum temperature: 40°, 3/22 Lowest: 26°, 3/8 Lows: Below 30°: 1 Lows: 32° or below: 5 Lows: Below 40°: 8 Lows: 50° or above: 6 Highest minimum temperature: 60°, 3/29 Link to comment Share on other sites More sharing options...
ORH_wxman Posted March 11, 2012 Share Posted March 11, 2012 March 1945 is the warmest on record in ORH with a mean temperature of 44.9F versus the 1981-2010 average of 34.3F. The warmth continued into April 1945 with the 3rd warmest April on record but then flipped to very cold in May where even 1.5" of snow fell in May 1945. Link to comment Share on other sites More sharing options...
Ottawa Blizzard Posted March 11, 2012 Author Share Posted March 11, 2012 While I take anything JB says with a pinch of salt now, it's interesting that he's calling for a cold May. Link to comment Share on other sites More sharing options...
donsutherland1 Posted March 11, 2012 Share Posted March 11, 2012 More on the extreme warmth of March 1945 in NYC... The March mean temperature was 2.596 standard deviations above the historic mean. The only months comparable or more extreme were: February 1934 April 1874 April 1875 May 1917 June 1881 June 1903 August 1927 August 1980 September 1871 October 1888 November 1873 December 1876 December 1917 The most extreme month was April 1874. The mean temperature of 41.1° was 3.347 standard deviations below the historic mean. It should be noted that the warming that has occurred since then has raised the historic mean, widening the deviation of the cold readings. For example, if one used the data prior to 1950, the comparable or more extreme cases would be: February 1934 April 1874 June 1903 August 1980 April 1874 would still be the most extreme month, with a deviation from the pre-1950 historic mean of 3.115 standard deviations. March 1945 would have been 2.705 standard deviations above the pre-1950 historic mean. August 1980 would have been 3.110 standard deviations above the historic pre-1950 mean. Link to comment Share on other sites More sharing options...
Snowstorms Posted March 11, 2012 Share Posted March 11, 2012 Hmm....there does seem to be incredible warmth coming and its about time, I had enough of this horrid Winter. Bring on the warmth, haha. In Toronto, here's a list of the warmest March's on record since 1840. Year High Low Avg 1945 51.4F 34.8F 43.1F 1946: 51.0F 34.8F 42.9F 2010: 48.5F 31.1F 39.9F 2000: 47.8F 41.7F 35.6F 1910: 47.5F 30.0F 38.8F 1921: 47.1F 30.0F 38.6F 1903: 46.6F 32.7F 39.7F Normals: 39.3F 23F 31.2F Thru Mar. 7 at YYZ; High: 41.9F Low: 23.0F Avg: 32.5F Only two years since 1946 have come close to the near record warmth those years. The warmest daily high temp remains at 78F at YYZ set back in 1945 and then in 1946, another day featured a high of 78F, LOL. Overall it seems like March 1885 was the one if not the top coldest march on record across the East. Lets see what happens this month. Link to comment Share on other sites More sharing options...
Amped Posted March 11, 2012 Share Posted March 11, 2012 Amzing how warm it has been in the GL and Nrn Plains this year. Ninas are usually cold in those areas. Link to comment Share on other sites More sharing options...
Ottawa Blizzard Posted March 11, 2012 Author Share Posted March 11, 2012 Hmm....there does seem to be incredible warmth coming and its about time, I had enough of this horrid Winter. Bring on the warmth, haha. In Toronto, here's a list of the warmest March's on record since 1840. Year High Low Avg 1945 51.4F 34.8F 43.1F 1946: 51.0F 34.8F 42.9F 2010: 48.5F 31.1F 39.9F 2000: 47.8F 41.7F 35.6F 1910: 47.5F 30.0F 38.8F 1921: 47.1F 30.0F 38.6F 1903: 46.6F 32.7F 39.7F Normals: 39.3F 23F 31.2F Thru Mar. 7 at YYZ; High: 41.9F Low: 23.0F Avg: 32.5F Only two years since 1946 have come close to the near record warmth those years. The warmest daily high temp remains at 78F at YYZ set back in 1945 and then in 1946, another day featured a high of 78F, LOL. Overall it seems like March 1885 was the one if not the top coldest march on record across the East. Lets see what happens this month. I have a feeling we're going to break the record this year. This seems to be the year for breaking warm records in eastern North America. Link to comment Share on other sites More sharing options...
Ellinwood Posted March 12, 2012 Share Posted March 12, 2012 Looking back... Here's a little more detailed look at March 1945 and 1946 compared to the 1981-2010 normals using a balanced color scale with 2F increments: Link to comment Share on other sites More sharing options...
bluewave Posted March 12, 2012 Share Posted March 12, 2012 It will be interesting to see how high the monthly departure goes in a place like Chicago. Currently Chicago is running +7.4 on the month with the heart of the impressive warmth ahead of them. These 7 day running departures are about as warm a print off the models that you will see this time of year. From the NWS site in Chicago, it looks like they will need a +10.8 to beat both 1910 and 1945 for the warmest March on record. http://www.crh.noaa....r_temp_rankings Link to comment Share on other sites More sharing options...
michsnowfreak Posted March 12, 2012 Share Posted March 12, 2012 DTX did a writeup on March 1945. Was an incredible month, and came after a frigid winter. http://www.crh.noaa.gov/dtx/march.php Link to comment Share on other sites More sharing options...
Chinook Posted March 20, 2012 Share Posted March 20, 2012 Here is the temperature departure from normal plot from Feb 18th to March 18th. Looks like these 30 days have seen a very broad 6 to 9F above normal with some areas more than 9F above normal. That is insane. Here in Colorado, about 4F above normal in this time frame. Link to comment Share on other sites More sharing options...
Harry Posted March 20, 2012 Share Posted March 20, 2012 Here is the temperature departure from normal plot from Feb 18th to March 18th. Looks like these 30 days have seen a very broad 6 to 9F above normal with some areas more than 9F above normal. That is insane. Here in Colorado, about 4F above normal in this time frame. Yep.. Looks like March 1945 is about to go down and or already has in some cases. This is the kind of stuff i live for. Thus the extremes!! Link to comment Share on other sites More sharing options...
Justin Posted March 20, 2012 Share Posted March 20, 2012 Currently for the quad cities metro area we are at 50.4F monthly avg at MLI if my math is correct which ranks us as the warmest March on record through the first 19 days this month. #1 is 1910 at 49.8 then 1945 at 49.4- I think... was looking at the records night so I don't remember if I have the years transposed or not. But in any event I think, barring some late month cold snap, we got this record all but locked up. Link to comment Share on other sites More sharing options...
The_Global_Warmer Posted March 21, 2012 Share Posted March 21, 2012 That is VS the 1981-2010 climo. Holy smokes. Based on the models, this one is gonna take the cake. Once the 20-23rd is added in, then again the 25th-29th, its gonna be close to this at the final numbers. With the west actually warming quite a bit. Link to comment Share on other sites More sharing options...
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