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

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000
CXUS55 KBOU 011211
CLMDEN

CLIMATE REPORT
NATIONAL WEATHER SERVICE
BOULDER, CO
500 AM MST SUN DEC 1 2013

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

...THE DENVER CO CLIMATE SUMMARY FOR THE MONTH OF NOVEMBER 2013...

CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1872 TO 2013

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            71   11/13        79      -8       77  11/07
LOWEST             12   11/21       -18      30       13  11/11
AVG. MAXIMUM     55.1              52.1     3.0     58.4
AVG. MINIMUM     26.7              24.5     2.2     28.5
MEAN             40.9              38.3     2.6     43.5
DAYS MAX >= 90      0               0.0     0.0        0
DAYS MAX <= 32      2               2.3    -0.3        0
DAYS MIN <= 32     25              23.4     1.6       19
DAYS MIN <= 0       0               0.6    -0.6        0

PRECIPITATION (INCHES)
RECORD
 MAXIMUM         3.21   1946
 MINIMUM            T   1899
                        1901
                        1949
TOTALS           0.27              0.61   -0.34     0.27
DAILY AVG.       0.01              0.02   -0.01     0.01
DAYS >= .01         3               4.7    -1.7        1
DAYS >= .10         1               1.6    -0.6        1
DAYS >= .50         0               0.0     0.0        0
DAYS >= 1.00        0               0.0     0.0        0
GREATEST
 24 HR. TOTAL    0.23   11/21 TO 11/21           11/10 TO 11/10
                        11/20 TO 11/21                    11/09 TO 11/10
                        11/21 TO 11/21                    11/10 TO 11/10
 STORM TOTAL       MM                                 MM
 (MM/DD(HH))            MM                    11/10(00) TO 11/10(00)
                                                 11/10(00) TO 11/10(00)0
                                                 11/10(00) TO 11/10(00)0

SNOWFALL (INCHES)
RECORDS
 TOTAL             MM   MM
TOTALS            2.0               8.7

DEGREE_DAYS
HEATING TOTAL     715               801     -86      638
 SINCE 7/1       1323              1382     -59     1195
COOLING TOTAL       0                 0       0        0
 SINCE 1/1        999               769     230     1236

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

WIND (MPH)
AVERAGE WIND SPEED              9.0
RESULTANT WIND SPEED/DIRECTION   3/203
HIGHEST WIND SPEED/DIRECTION    31/040    DATE  11/20
HIGHEST GUST SPEED/DIRECTION    45/150    DATE  11/02

SKY COVER
POSSIBLE SUNSHINE (PERCENT)   MM
AVERAGE SKY COVER           0.50
NUMBER OF DAYS FAIR            8
NUMBER OF DAYS PC             18
NUMBER OF DAYS CLOUDY          4

AVERAGE RH (PERCENT)     50

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

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

...NOVEMBER 2013 ABOVE NORMAL TEMPERATURES/BELOW NORMAL
PRECIPITATION...

NOVEMBER 2013 WAS AN UNEVENTFUL MONTH FOR WEATHER WITH ABOVE NORMAL
TEMPERATURES AND BELOW NORMAL PRECIPITATION. TWENTY TWO OUT THE
THIRTY DAYS IN THE MONTH HAD ABOVE NORMAL TEMPERATURES...WITH ONLY
ONE DAY HAVING MEASURABLE SNOWFALL. A WEAK COLD FRONT BROUGHT BELOW
NORMAL TEMPERATURES TO DENVER ON THE FIRST...WITH ABOVE NORMAL
TEMPERATURES ON THE 2ND AND 3RD. BY THE 4TH...COLDER TEMPERATURES
RETURNED ALONG WITH SOME LIGHT SNOW BEHIND A COLD FRONT.  THE BELOW
NORMAL TEMPERATURES LINGERED THROUGH THE 6TH. UPPER LEVEL HIGH
PRESSURE RE-ESTABLISHED OVER COLORADO ON THE 8TH AND PERSISTED
THROUGH THE 13TH. THIS PATTERN BROUGHT ABOVE NORMAL TEMPERATURES TO
THE COLORADO FRONT RANGE THROUGH THE PERIOD. THE MAXIMUM TEMPERATURE
OF 71 DEGREES ON THE 13TH WAS THE WARMEST DAY OF THE MONTH. A BROAD
UPPER LEVEL TROUGH OF LOW PRESSURE DEVELOPED OVER THE NORTHERN AND
AND CENTRAL ROCKY MOUNTAIN STATES ON THE 14TH...AND REMAINED OVER
THE REGION THROUGH THE 18TH. WHILE THAT TROUGH BROUGHT SOME COOLING
TO FRONT RANGE...TEMPERATURES STILL REMAINED AT ABOVE NORMAL VALUES
THROUGH THE PERIOD. ON THE 21ST...AN ARCTIC COLD FRONT BROUGHT SNOW
AND MUCH COLDER TEMPERATURES TO NORTHEASTERN COLORADO. THE HIGH
TEMPERATURE IN DENVER ON THE 21ST ONLY MANAGED TO REACH 25
DEGREES...WHICH WAS THE COLDEST DAY OF THE MONTH. BELOW NORMAL
TEMPERATURES CONTINUED THROUGH THE 25TH. MILD AND DRY WEATHER
RETURNED TO NORTH CENTRAL AND NORTHEASTERN COLORADO THE LAST FEW
DAYS OF THE MONTH AS UPPER LEVEL HIGH PRESSURE BUILT OVER THE AREA.

TEMPERATURES:

THE AVERAGE TEMPERATURE FOR THE MONTH OF NOVEMBER WAS 40.9 DEGREES F
WHICH WAS 2.6 DEGREES ABOVE 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.

THERE WERE TWO DAYS IN WHICH THE DAYTIME HIGH TEMPERATURE DID NOT
EXCEED 32 DEGREES F...AND NO DAYS IN WHICH THE LOW TEMPERATURE
DROPPED BELOW ZERO. THE HIGHEST TEMPERATURE OF THE MONTH WAS 71
DEGREES WHICH OCCURRED ON THE 13TH...AND THE COLDEST TEMPERATURE OF
THE MONTH WAS 12 DEGREES ON THE MORNING OF THE 21TH.

PRECIPITATION:

PRECIPITATION FOR THE MONTH OF NOVEMBER WAS 0.27 INCHES...WHICH IS
0.34 INCHES BELOW THE NORMAL 0F 0.61 INCHES. 0.23 INCHES OF
PRECIPITATION FELL ON THE 21ST WHICH IS THE GREATEST DAILY AMOUNT
FOR THE MONTH.

TOP FIVE WETTEST NOVEMBERS:

PRECIPITATION   YEAR

3.21 INCHES     1946 2.67 INCHES     1991 2.63 INCHES     1983 1.95
INCHES     1922 1.93 INCHES     1886

TOP FIVE DRIEST NOVEMBERS:

TRACE 1899 TRACE 1901 TRACE 1949 0.01 INCHES 1939 0.03 INCHES 1917

SNOW:

2.0 INCHES OF SNOW WAS RECORDED DURING THE MONTH...WITH ALL OF IT
FALLING ON THE 21ST. FIVE OTHER DAYS DURING THE MONTH RECORDED A
TRACE OF SNOWFALL.

TOP FIVE SNOWIEST NOVEMBERS:

42.6 INCHES 1946 29.6 INCHES 1991 29.3 INCHES 1983 23.1 INCHES 1928
23.1 INCHES 1929

THERE WERE NO DAYS IN WHICH THUNDER WAS OBSERVED AT DENVER
INTERNATIONAL AIRPORT...AND ONE DAY WITH DENSE FOG WITH A VISIBILITY
AT OR BELOW 1/4 MILE DURING THE MONTH. A PEAK WIND OF 45 MPH FROM A
SOUTHEASTERLY DIRECTION WAS RECORDED ON THE 2ND.
$$



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