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Extreme cold February 2015


Rainman

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Detroit finished at 14.1, an amazing -14 departure, which is actually a larger departure than Morch. 5th coldest month ever over 140 years.

 

Important to note that Morch is only a smaller departure when using the 1980-2010 normals which are rather warm.  When compared against a 100 year average or a period-of-record average, Morch is still the king of ridiculousness.

 

I illustrate.

 

Morch

Observed: 50.7

140 year normal: 35.1

Departure: +15.6

 

February 2015

Observed: 14.1

140 year Normal: 26.0

Departure:  -11.9

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Detroit finished at 14.1, an amazing -14 departure, which is actually a larger departure than Morch. 5th coldest month ever over 140 years.

Toledo finished at 15.9F below average, with an average monthly temperature of 12.4. This is a significantly higher departure from average compared to the "hot" March 2012, which was +13.3F. In my spreadsheet of Toledo monthly departures from average, only three other months have a double-digit departure from average, including the cold February 2014, the hot March 2012, and the mild January 2006. Toledo had the snowiest February ever. The -19F recorded this month was 1 degree away from Toledo's all time coldest temperature of -20F.

 

http://www.fortcollins.salsite.com/Temp_Toledo1.png

--

[TEMPERATURE DATA]      [PRECIPITATION DATA]      AVERAGE MONTHLY: 12.4   TOTAL FOR MONTH:   1.57    DPTR FM NORMAL: -15.9   DPTR FM NORMAL:   -0.50   HIGHEST:    46 ON  8      LOWEST:    -19 ON 20                                                       SNOW, ICE PELLETS, HAIL                           TOTAL MONTH:  25.3 INCHES  
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This link from DTX on Feb...

 

http://www.crh.noaa.gov/images/dtx/web/Feb15Cold.pdf

 

Our Feb was a typical Feb in Edmunton, Alberta cold-wise.

 

Detroit records date to 1874.

 

Coldest Febs on record

1.) 12.2F - 1875

2.) 14.1F - 2015

3.) 14.8F - 1934

4.) 16.0F - 1936

5.) 16.1F - 1904

 

Coldest all-time Months on record

1.) 12.2F - Feb 1875

2.) 12.8F - Jan 1977

3.) 13.1F - Jan 1912

4.) 13.2F - Jan 1918

5.) 14.1F - Feb 2015

 

This Feb also made 2014-15 the 20th coldest winter on record, in spite of the mild December. Winter 2013-14 was the 8th coldest on record, and prior to this, a winter hadnt made the top 20 coldest since 1981-82.

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I dug up some additional stats that I included in the writeup about the winter and February. Pretty incredible that after December was +4.3, Chicago still finished up -3.5 for the winter. http://www.crh.noaa.gov/news/display_cmsstory.php?wfo=lot&storyid=107096&source=0

Sent from my SM-G900V

January 1912 at RFD makes my brain hurt. I can't even imagine that.
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CLE had a monthly departure of -16.2. I think that might take the prize as the largest negative departure station. Who would have thought that this winter would have ended up much colder than last?

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CLE had a monthly departure of -16.2. I think that might take the prize as the largest negative departure station. Who would have thought that this winter would have ended up much colder than last?

 

At KOZW we had an average of 17F last winter and 21F this winter. December really crapped it up.

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Toledo finished at 15.9F below average, with an average monthly temperature of 12.4. This is a significantly higher departure from average compared to the "hot" March 2012, which was +13.3F. In my spreadsheet of Toledo monthly departures from average, only three other months have a double-digit departure from average, including the cold February 2014, the hot March 2012, and the mild January 2006. Toledo had the snowiest February ever. The -19F recorded this month was 1 degree away from Toledo's all time coldest temperature of -20F.

http://www.fortcollins.salsite.com/Temp_Toledo1.png

--

[TEMPERATURE DATA]      [PRECIPITATION DATA]      

AVERAGE MONTHLY: 12.4   TOTAL FOR MONTH:   1.57    
DPTR FM NORMAL: -15.9   DPTR FM NORMAL:   -0.50   
HIGHEST:    46 ON  8      
LOWEST:    -19 ON 20                               
                        SNOW, ICE PELLETS, HAIL   
                        TOTAL MONTH:  25.3 INCHES

It's been a hell of a 28 days that's for sure. The snowpack of these last two winters has been something truly to remember as well. This years wasn't as deep but the bitter cold kept it around forever

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DTW fell to 0F this morning, breaking the record low of 2F from 1901. This is Detroit's 7th record low since Feb 16th (18 days)! (6 record lows, 1 record low max temp....im not even counting record low daily mean temps in that). Since records go to 1874, I cant recall such a blitz of record temps outside of Mar 2012 & Feb/Mar 2015. Not even close actually.

 

Remember the days when it seemed like we could never get a single record low? Well we have now broken 16 record low temps the  last two winters a Detroit! 2013-14 saw 8 (5 rec lows, 3 rec low maxes) and 2014-15 saw 8 as well (7 rec lows, 1 rec low max).

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Im sure its more of NCDC's typical "quality control" :rolleyes:

 

Regardless, super impressive.

 

This was every climate sites coldest Feb since 1875. I would love for NCDC to tell us which February(s) since 1895 were colder if 2015 wasnt the coldest.

 

You can look it up at this link: http://www.ncdc.noaa.gov/cag/. According to NCDC, February 1904 with a mean temperature of 11.6F is the coldest for SE Lower Michigan. February 2015 was #2 at 12.2F.

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You can look it up at this link: http://www.ncdc.noaa.gov/cag/. According to NCDC, February 1904 with a mean temperature of 11.6F is the coldest for SE Lower Michigan. February 2015 was #2 at 12.2F.

The link doesnt work for me.

 

I wonder how they calculate that? The only station in SE MI that reported in 1904 was Detroit, and it was 2 degrees warmer in Feb 1904 than Feb 2015.

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