Tag Archives: Climatology

Weather History

November 9th – 15th – This week in Denver weather history

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November 9th - 15th - This week in Denver weather history.
November 9th - 15th - This week in Denver weather history.

Plenty of snow and wind dominate a look back at the Denver weather calendar for this week in weather history – November 9th to the 15th. 

PUBLIC INFORMATION STATEMENT
NATIONAL WEATHER SERVICE DENVER CO
645 PM MST SAT NOV 08 2008

…THIS WEEK IN METRO DENVER WEATHER HISTORY…

8-9   IN 1897…WEST WINDS WERE SUSTAINED TO 45 MPH WITH GUSTS
        AS HIGH AS 50 MPH IN THE CITY.
      IN 1919…POST-FRONTAL HEAVY SNOWFALL TOTALED 8.4 INCHES OVER
        DOWNTOWN DENVER.  MOST OF THE SNOW…6.6 INCHES…FELL ON THE
        9TH.  NORTH WINDS WERE SUSTAINED TO 26 MPH WITH GUSTS TO
        30 MPH ON THE 8TH.
      IN 1950…A MAJOR WINTER STORM DUMPED 10.4 INCHES OF SNOW AT
        STAPLETON AIRPORT WITH THE MOST SNOW…7.8 INCHES…FALLING
        ON THE 8TH.  EAST WINDS GUSTED TO 31 MPH AT STAPLETON
        AIRPORT ON THE 8TH.  SNOWFALL TOTALED 8.2 INCHES IN
        DOWNTOWN DENVER.
      IN 1958…STRONG WINDS CAUSED SOME DAMAGE IN BOULDER.  WEST-
        NORTHWEST WINDS GUSTED TO 40 MPH AT STAPLETON AIRPORT ON
        THE 8TH.
      IN 1975…HEAVY SNOWFALL HIT METRO DENVER.  SNOWFALL AT
        STAPLETON INTERNATIONAL AIRPORT TOTALED 8.0 INCHES AND
        EAST WINDS GUSTED TO 21 MPH.  POWER OUTAGES CAUSED BY THE
        STORM AFFECTED OVER 10 THOUSAND PEOPLE IN METRO DENVER.  IN
        THE FOOTHILLS WEST OF DENVER…10 TO 15 INCHES OF SNOW FELL.
        THE STORM PRODUCED THE GREATEST 24-HOUR PRECIPITATION…1.29
        INCHES…EVER RECORDED DURING THE MONTH OF NOVEMBER IN THE
        CITY.
Continue reading November 9th – 15th – This week in Denver weather history →

Thornton Weather

Crazy September weather – Cooler with huge temperature swings

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If you have been thinking that the weather this month has been a bit odd you are right!  It was pointed out to me by a reader recently just how much things have been out of kilter.  If you look at the table below you will see what we mean.

Date Normal High Official High * Departure
From Normal		 Difference From
Previous Day
08/31 82 91 +9 +2
09/01 82 85 +3 -6
09/02 82 63 -19 -22
09/03 81 75 -6 12
09/04 81 74 -7 -1
09/05 81 54 -27 -20
09/06 80 68 -12 14
09/07 80 79 -1 11
09/08 80 52 -18 -27
09/09 79 86 +7 34
09/10 79 80 +1 -6
09/11 79 63 -16 -17
09/12 79 61 -18 -2
09/13 78 74 -4 13
09/14 78 62 -16 -12
09/15 78 73 -5 11
09/16 77 80 +3 7
09/17 77 81 +4 1
09/18 77 79 +2 -2
09/19 76 76 0 -3
09/20 76 79 +3 3
09/21 76 77 +1 -2
09/22 75 87 +12 10

As you can see, we have had eight days thus far in September with temperatures 10 degrees or more above or below normal.  Seven of those eight were below normal, six of those were 15 or more degrees cooler than usual.  We had one day, the 5th, when we the mercury only climbed to 54 degrees – a whopping 27 degrees below what we would normally expect. 

That in and of itself is noteworthy but also notice the temperature swings from day to day.  12 days we have had temperature swings of 10 degrees or more.  Four of those days had swings of 20 degrees or more!  On the 8th we dropped 27 degrees from the previous day and were 18 degrees below normal.  We then followed that up on the 9th by climbing 34 degrees above what we had on the 8th and were 7 degrees above normal. 

Now that is some weird weather and if you feel like things have been going up and down – you are right! 

Special thanks to David Canfield of Thornton for accumulating the data and bringing this to our attention!

Colorado Weather, Thornton Weather

August Preview – Summer coming to an end

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August 2008 Weather PreviewAs summer vacations wind down and families prepare to send kids back to school in August, Colorado weather also starts to settle down.  The chances for severe weather decrease markedly during August and by the end of the month daytime temperatures are dropping quite a bit as well.  For more information on what to expect in August, click here to view our August 2008 Preview.

Editor’s note:  Somehow we forgot to post the July 2008 preview last month and we apologize for our error.  Should you wish to read it, it is posted here.