Dave’s Discussion – Weather 11/13/15

It’s Friday the 13th!   Yes, that day a lot of us think that spooky or wild stuff happens on.   For fun, I thought it would be cool to go back and look at the climatology of Friday the 13ths since 2000.   Yes, I said for fun 🙂

So first off, today is the 27th Friday the 13th since 2000.  Since today is not in the books yet, we will not include today in the data, so we will call it 26 Friday 13ths, with the most (3) in February, June, and July.   The least have occurred in November, with only 1 complete, and today being the 2nd time it has happened since 2000.

On that note, the next time we have a Friday, November 13th will be in 2020.

Ok, I point out how the 13th is spread along each month because there is no normal temperature for Friday the 13th.

However, since 2000, the average high has been 63 and the average low has been 44.   Those are both about slightly above normal (+.2 for high, +1 for low)

The warmest Friday 13th, (since 2000) occurred on 8/13/2010, when it hit 91.

The coldest Friday 13th, (since 2000) occurred this year, in February when it dropped to 4.

When you compare with the normal for each individual date, the most above normal day in the past 15 years was back on 1/13/06 when the high was 26 above normal and the low was 24 above normal.

On the flip side, the coldest day compared to normal again was in February of this year, when we were 14 below normal for the high and 21 below for the low.

Since 2000, Friday the 13ths have produced highs in the

  • 90s – 2 times
  • 80s – 5 times
  • 70s – 4 times
  • 60s – 6 times
  • 50s – 2 times
  • 40s – 2 times
  • 30s – 2 times
  • 20s – 3 times

Since 2000, Friday the 13th has produced below freezing temperatures 6 times, but not any below 0.

We have also not had a lot of snow on Friday the 13th, with a total of 2.2″ falling since 2000, most of that one day (1/13/12)

Rainfall has occurred on about 30% of the days, with the heaviest in the last 15 years being on 6/13/03 when we picked up 2.71″ of rain.

Check out below the stats for Friday 13ths from 2000 to now, and just make sure to stay away from black cats and ladders 🙂

 

Date High Low Dep High Dep Low11-13 pic Rain Snow
10/13/2000 73 41 7 -5
4/13/2001 66 50 3 8
7/13/2001 82 55 3 11
9/13/2002 86 52 8 -6
12/13/2002 36 34 -5 7 0.46
6/13/2003 79 64 -2 3 2.71
2/13/2004 28 24 -12 -1 T T
8/13/2004 67 56 -17 -9
5/13/2005 83 46 11 5 0.26
1/13/2006 62 46 26 24 0.23
10/13/2006 55 33 -11 -13
7/13/2007 78 60 -7 -6 T
6/13/2008 90 69 9 8 0.57
2/13/2009 44 29 4 4
3/13/2009 47 23 3 9
11/13/2009 65 33 11 4
8/13/2010 91 69 7 4
5/13/2011 83 65 11 14 T
1/13/2012 21 17 -15 -5 0.09 2
4/13/2012 66 39 3 -3
7/13/2012 84 69 -1 3
9/13/2013 66 52 -12 -6
12/13/2013 34 15 -7 -12 0.02 0.2
6/13/2014 77 61 -4 0 T
2/13/2015 26 4 -14 -21
3/13/2015 56 42 6 10 0.48

 

 

 

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