Climatological Report (Monthly)
Issued by NWS Denver/Boulder, CO

Home | Current Version | Previous Version | Graphics & Text | Print | Product List | Glossary Off
Versions: 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29

000
CXUS55 KBOU 011719
CLMDEN

DENCLMDEN 000
TTAA00 KBOU 010844


CLIMATE REPORT
NATIONAL WEATHER SERVICE BOULDER, CO
144 AM MST MON DEC 1 2014

...................................

...THE DENVER CO CLIMATE SUMMARY FOR THE MONTH OF NOVEMBER 2014...

CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1872 TO 2014

WEATHER         OBSERVED          NORMAL  DEPART  LAST YEAR`S
                 VALUE   DATE(S)  VALUE   FROM    VALUE  DATE(S)
                                          NORMAL
................................................................
TEMPERATURE (F)
RECORD
 HIGH              80   11/08/2006
 LOW              -18   11/29/1877
HIGHEST            72   11/29        73       7       71  11/13
                        11/01
LOWEST            -14   11/13         6      -8       12  11/21
AVG. MAXIMUM     50.6              52.1    -1.5     55.1
AVG. MINIMUM     21.8              24.5    -2.7     26.7
MEAN             36.2              38.3    -2.1     40.9
DAYS MAX >= 90      0               0.0     0.0        0
DAYS MAX <= 32      5               2.3     2.7        2
DAYS MIN <= 32     22              23.4    -1.4       25
DAYS MIN <= 0       4               0.6     3.4        0

PRECIPITATION (INCHES)
RECORD
 MAXIMUM         3.21   1946
 MINIMUM            T   1899
                        1901
                        1949
TOTALS           0.76              0.61    0.15     0.27
DAILY AVG.       0.03              0.02    0.01     0.01
DAYS >= .01         6               4.7     1.3        3
DAYS >= .10         3               1.6     1.4        1
DAYS >= .50         0               0.0     0.0        0
DAYS >= 1.00        0               0.0     0.0        0
GREATEST
 24 HR. TOTAL    0.30   11/03 TO 11/03           11/21 TO 11/21

SNOWFALL (INCHES)
RECORDS
 TOTAL           42.6   1946
TOTALS            4.0               8.7

DEGREE_DAYS
HEATING TOTAL     857               801      56      715
 SINCE 7/1       1254              1382    -128     1323
COOLING TOTAL       0                 0       0        0
 SINCE 1/1        701               769     -68      999

FREEZE DATES
RECORD
 EARLIEST     09/08/1962
 LATEST       06/08/2007
EARLIEST                        10/07
LATEST                          05/05
..................................................

WIND (MPH)
AVERAGE WIND SPEED              10.1
RESULTANT WIND SPEED/DIRECTION   3/228
HIGHEST WIND SPEED/DIRECTION    43/040    DATE  11/10
HIGHEST GUST SPEED/DIRECTION    54/040    DATE  11/10

SKY COVER
POSSIBLE SUNSHINE (PERCENT)   MM
AVERAGE SKY COVER           0.60
NUMBER OF DAYS FAIR            4
NUMBER OF DAYS PC             21
NUMBER OF DAYS CLOUDY          5

AVERAGE RH (PERCENT)     53

WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM              1     MIXED PRECIP               1
HEAVY RAIN                1     RAIN                       2
LIGHT RAIN                2     FREEZING RAIN              0
LT FREEZING RAIN          0     HAIL                       0
HEAVY SNOW                1     SNOW                       3
LIGHT SNOW                7     SLEET                      0
FOG                       8     FOG W/VIS <= 1/4 MILE      1
HAZE                      5

-  INDICATES NEGATIVE NUMBERS.
R  INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T  INDICATES TRACE AMOUNT.

.....NOVEMBER 2014 COLDER AND SLIGHTLY WETTER THAN NORMAL.....

A LARGE UPPER LEVEL RIDGE OF HIGH PRESSURE CENTERED OVER THE CENTRAL
UNITED STATES...BROUGHT ABOVE NORMAL TEMPERATURES AND DRY WEATHER TO
NORTH CENTRAL AND NORTHEASTERN COLORADO THE FIRST TWO DAYS OF THE
MONTH. AN UPPER LEVEL TROUGH OF LOW PRESSURE AND ASSOCIATED COLD
FRONT BROUGHT COLDER TEMPERATURES AND PRECIPITATION TO THE FRONT
RANGE OF COLORADO ON THE 3RD. ALMOST A THIRD OF AN INCH OF
PRECIPITATION FELL AT DENVER INTERNATIONAL AIRPORT...WITH ONLY A
TRACE OF SNOWFALL MEASURED. DENVER EXPERIENCED ABOVE NORMAL
TEMPERATURES FROM THE 4TH THROUGH THE 9TH AS UPPER LEVEL HIGH
PRESSURE DOMINATED THE ROCKY MOUNTAIN REGION. ON THE 10TH...AN
ARCTIC COLD FRONT ASSOCIATED WITH A DEEP UPPER LEVEL STORM SYSTEM
OVER THE NORTHERN ROCKIES BLASTED INTO NORTHEASTERN COLORADO. THE
TEMPERATURE IN DENVER DROPPED FROM THE MID 60`S INTO THE TEENS
WITHIN A FEW HOURS AFTER THE FRONTAL PASSAGE. THE ARCTIC AIRMASS
REMAINED ENTRENCHED OVER THE REGION...WITH HIGH TEMPERATURES FAILING
TO MAKE IT INTO THE TEENS FROM THE 11TH THROUGH THE 13TH. THIS IS
THE FIRST TIME...SINCE RECORDS HAVE BEEN TAKEN IN DENVER SINCE
1872...THAT THERE WERE THREE CONSECUTIVE DAYS WITH MAX TEMPERATURES
BELOW 20 DEGREES F IN THE MONTH OF NOVEMBER. IN ADDITION TO THE VERY
COLD WEATHER...DENVER INTERNATIONAL AIRPORT MEASURED 2.1 INCHES OF
SNOWFALL...WHICH WAS THE FIRST MEASURABLE SNOWFALL FOR THE SEASON.
BELOW NORMAL TEMPERATURES LINGERED OVER NORTHEASTERN COLORADO
THROUGH THE 17TH...AS A BROAD UPPER LEVEL TROUGH OF LOW PRESSURE
COVERED MUCH OF THE UNITED STATES. THE UPPER TROUGH MOVED EAST OF
COLORADO ON THE 18TH...WITH A GRADUAL WARMING TREND THROUGH THE
22ND. ANOTHER UPPER LEVEL STORM SYSTEM BROUGHT COOLER TEMPERATURES
AND VERY LIGHT SNOW TO DENVER FROM THE 23RD THROUGH THE 26TH. EVEN
WITH THE DOWNTURN OF TEMPERATURE ON THE 30TH...THE MONTH ENDED ON A
WARM NOTE WITH TEMPERATURES BEING MUCH ABOVE AVERAGE

TEMPERATURES:

THE AVERAGE TEMPERATURE AT DENVER INTERNATIONAL AIRPORT FOR THE
MONTH OF NOVEMBER WAS 36.2 DEGREES F WHICH WAS 2.1 DEGREES BELOW
NORMAL. NOVEMBER OF 1949 WAS THE WARMEST NOVEMBER ON RECORD...WITH
AN AVERAGE TEMPERATURE OF 50.9 DEGREES F.  THE COLDEST NOVEMBER ON
RECORD WAS 22.0 DEGREES F WAY BACK IN 1880. THAT WAS THE SAME YEAR
THAT JAMES A. GARFIELD WAS ELECTED PRESIDENT OF THE UNITED STATES.
THERE WERE 5 DAYS IN WHICH THE TEMPERATURE DID NOT EXCEED 32 DEGREES
F...AND 4 DAYS WITH LOW TEMPERATURES AT OR BELOW ZERO DEGREES F. THE
HIGHEST TEMPERATURE OF THE MONTH WAS 72 DEGREES WHICH OCCURRED ON
THE 1ST AND THE 29TH. THE COLDEST TEMPERATURE OF THE MONTH WAS 14
DEGREES BELOW ZERO ON THE MORNING OF THE 13TH.

DAILY RECORDS:

DATE      TEMPERATURE    TYPE OF RECORD    OLD RECORD   YEAR LAST SET

NOV  9TH  45 DEGREES     RECORD HIGH MIN   43 DEGREES       1934
NOV 11TH  16 DEGREES     RECORD LOW MAX    19 DEGREES       1916
NOV 12TH   6 DEGREES     RECORD LOW MAX     9 DEGREES       1916
NOV 12TH -13 DEGREES     RECORD LOW        -4 DEGREES       1882
NOV 13TH -14 DEGREES     RECORD LOW        -3 DEGREES       1916

PRECIPITATION:

PRECIPITATION FOR THE MONTH OF NOVEMBER AT DENVER INTERNATIONAL
AIRPORT WAS 0.76 INCHES...WHICH IS 0.15 INCHES ABOVE THE NORMAL OF
0.61 INCHES. THERE WERE 6 DAYS WITH MEASURABLE PRECIPITATION. ON THE
29TH...0.30 INCHES OF PRECIPITATION FELL WHICH IS THE GREATEST DAILY
AMOUNT FOR THE MONTH.

TEN WETTEST NOVEMBER`S IN DENVER WEATHER HISTORY SINCE 1872:

3.21 INCHES 1946
2.67 INCHES 1991
2.63 INCHES 1983
1.95 INCHES 1922
1.93 INCHES 1886
1.88 INCHES 1975
1.74 INCHES 1908
1.69 INCHES 1972
1.68 INCHES 1881
1.66 INCHES 1979

TEN DRIEST NOVEMBER PRECIPITATION AMOUNTS IN DENVER
WEATHER HISTORY SINCE 1872:

 T   INCHES 1899, 1901, 1949
0.01 INCHES 1939
0.03 INCHES 1917
0.04 INCHES 1904, 1905
0.05 INCHES 2003
0.07 INCHES 1903
0.08 INCHES 1874, 1920
0.10 INCHES 1996
0.14 INCHES 1924
0.15 INCHES 1989

SNOW:

4.0 INCHES OF SNOW WAS MEASURED AT DENVER INTERNATIONAL AIRPORT
DURING THE MONTH. THE IS 4.7 INCHES BELOW THE NORMAL OF 8.7 INCHES.
ON THE 12TH...2.1 INCHES OF SNOW WAS MEASURED WHICH IS THE GREATEST
DAILY SNOWFALL FOR THE MONTH.

TEN GREATEST MONTHLY NOVEMBER SNOWFALL AMOUNTS
IN DENVER WEATHER HISTORY SINCE 1872:

42.6 INCHES 1946
29.6 INCHES 1991
29.3 INCHES 1983
23.1 INCHES 1928, 1929
22.9 INCHES 1908
22.3 INCHES 1979
21.3 INCHES 1956
20.1 INCHES 1992
19.4 INCHES 1972
17.4 INCHES 1993

TEN LEAST MONTHLY NOVEMBER SNOWFALL AMOUNTS
IN DENVER WEATHER HISTORY SINCE 1872:

0.0 INCHES 1949
T   INCHES 1884, 1899, 1901, 1905, 1917, 1939
0.3 INCHES 1883
0.5 INCHES 1885
0.8 INCHES 1900
0.9 INCHES 1896
1.0 INCHES 2005
1.3 INCHES 1910
1.4 INCHES 1971
1.5 INCHES 1903, 2010

THERE WAS ONLY 1 DAY IN WHICH THUNDER WAS OBSERVED AT DENVER
INTERNATIONAL AIRPORT. THERE WERE NO DAYS WITH HAIL AND 1 DAY WITH
DENSE FOG WITH A VISIBILITY AT OR BELOW 1/4 MILE DURING THE MONTH.
A PEAK WIND OF 54 MPH FROM A NORTHEASTERLY DIRECTION WAS RECORDED
ON THE 1OTH.

$$



USA.gov is the U.S. government's official web portal to all federal, state and local government web resources and services.