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

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095
CXUS55 KBOU 011329
CLMDEN

CLIMATE REPORT
NATIONAL WEATHER SERVICE DENVER/BOULDER CO
729 AM MDT SAT JUL 1 2017

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

...THE DENVER CO CLIMATE SUMMARY FOR THE MONTH OF JUNE 2017...

CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1872 TO 2017

WEATHER         OBSERVED          NORMAL  DEPART  LAST YEAR`S
                 VALUE   DATE(S)  VALUE   FROM    VALUE  DATE(S)
                                          NORMAL
................................................................
TEMPERATURE (F)
RECORD
 HIGH             105   06/26/2012
                        06/25/2012
  LOW              30   06/02/1951

HIGHEST            99   06/20        96       3       98  06/21
LOWEST             42   06/13        42       0       49  06/02
AVG. MAXIMUM     85.5              82.4     3.1     85.5
AVG. MINIMUM     53.6              52.3     1.3     56.2
MEAN             69.5              67.4     2.1     70.8
DAYS MAX >= 90      9               7.9     1.1       12
DAYS MAX <= 32      0               0.0     0.0        0
DAYS MIN <= 32      0               0.0     0.0        0
DAYS MIN <= 0       0               0.0     0.0        0

PRECIPITATION (INCHES)
RECORD
 MAXIMUM         4.96   1882
 MINIMUM            T   1890
TOTALS           0.33              1.98   -1.65     1.62
DAILY AVG.       0.01              0.07   -0.06     0.05
DAYS >= .01         5               8.4    -3.4        7
DAYS >= .10         2               4.6    -2.6        4
DAYS >= .50         0               1.4    -1.4        1
DAYS >= 1.00        0               0.3    -0.3        0
GREATEST
 24 HR. TOTAL    0.13   06/29 TO 06/29           06/13 TO 06/13

SNOWFALL (INCHES)
RECORD            0.5 1953
 TOTAL            0.0 2017          0.0

DEGREE_DAYS
HEATING TOTAL      25                62     -37        4
 SINCE 7/1       5109              6058    -949     5560
COOLING TOTAL     167               133      34      185
 SINCE 1/1        173               155      18      188

FREEZE DATES
RECORD
 EARLIEST     09/08/1962
 LATEST       06/08/2007
EARLIEST      04/01             10/07
LATEST        05/04             05/05
....................................................

WIND (MPH)
AVERAGE WIND SPEED              10.1
RESULTANT WIND SPEED/DIRECTION   2/135
HIGHEST WIND SPEED/DIRECTION    44/270    DATE  06/27
HIGHEST GUST SPEED/DIRECTION    66/270    DATE  06/27

SKY COVER
POSSIBLE SUNSHINE (PERCENT)   MM
AVERAGE SKY COVER           0.50
NUMBER OF DAYS FAIR            6
NUMBER OF DAYS PC             22
NUMBER OF DAYS CLOUDY          2

AVERAGE RH (PERCENT)     47

WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM             10     MIXED PRECIP               0
HEAVY RAIN                2     RAIN                       2
LIGHT RAIN                8     FREEZING RAIN              0
LT FREEZING RAIN          0     HAIL                       0
HEAVY SNOW                0     SNOW                       0
LIGHT SNOW                0     SLEET                      0
FOG                       3     FOG W/VIS <= 1/4 MILE      0
HAZE                      1

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

...JUNE 2017...WARMER DRIER THAN NORMAL............................

UPPER LEVEL HIGH PRESSURE DOMINATED THE ROCKY MOUNTAIN REGION
THROUGH MUCH OF THE MONTH RESULTING IN AND HOT AND DRY WEATHER
ACROSS DENVER. THERE WERE ONLY 5 DAYS OF MEASURABLE PRECIPITATION
DURING THE MONTH...WITH 23 OUT OF THE 30 DAYS HAVING ABOVE NORMAL
TEMPERATURES.

TEMPERATURES:

THE AVERAGE TEMPERATURE AT DENVER INTERNATIONAL AIRPORT FOR THE
MONTH WAS 69.5 DEGREES F, WHICH IS 2.1 DEGREES ABOVE NORMAL. THE
WARMEST JUNE ON RECORD OCCURRED IN 2012 WITH AN AVERAGE MONTHLY
TEMPERATURE OF 75.0 DEGREES F. THE COLDEST JUNE ON RECORD WAS 60.6
DEGREES BACK IN 1967. ON THE 20TH...THE TEMPERATURE CLIMBED TO 99
DEGREES F WHICH IS THE HIGHEST TEMPERATURE OF THE MONTH. THE COLDEST
TEMPERATURE OF 42 DEGREES F OCCURRED ON THE MORNING OF THE 13TH.

TEN WARMEST JUNE`S IN DENVER WEATHER HISTORY SINCE 1872:

75.0 2012
73.5 1994
73.4 1956
72.8 2006...1933
72.6 1990
72.0 1952...1881
71.9 1980...1977

TEN COLDEST JUNE`S IN DENVER WEATHER HISTORY SINCE 1872:

60.6 1967
60.9 1951
61.0 1928
61.5 1969...1904
61.7 1895
62.0 1945
62.1 2003...1915
62.2 1995

PRECIPITATION:

PRECIPITATION FOR THE MONTH OF JUNE AT DENVER INTERNATIONAL
AIRPORT WAS 0.33 INCHES, WHICH IS 1.65 INCHES BELOW THE NORMAL OF
1.98 INCHES. THERE WERE 5 DAYS WITH MEASURABLE PRECIPITATION DURING
THE MONTH. 0.13 INCHES OF PRECIPITATION FELL ON THE 29TH, WHICH IS
THE GREATEST DAILY AMOUNT FOR THE MONTH. NO SNOW FELL DURING THE
MONTH.

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

4.96 INCHES 1882
4.86 INCHES 2009
4.69 INCHES 1967
4.14 INCHES 1965
3.99 INCHES 2005
3.95 INCHES 2003...1949
3.83 INCHES 1970
3.59 INCHES 1963
3.55 INCHES 1923

TEN DRIEST JUNE`S IN DENVER WEATHER HISTORY SINCE 1872:

TRACE       1890
0.08 INCHES 1916
0.09 INCHES 1980...1881
0.12 INCHES 2006...1952
0.13 INCHES 1893
0.16 INCHES 1933
0.17 INCHES 1930
0.19 INCHES 1922

SEVEN SNOWIEST JUNE`S IN DENVER WEATHER HISTORY SINCE 1872:

0.5 INCHES 1953
0.4 INCHES 1919
0.3 INCHES 1951
TRACE      1974...1947...1937...1917

THERE WERE 10 DAYS IN WHICH THUNDER WAS OBSERVED AT DENVER
INTERNATIONAL AIRPORT AND 0 DAYS WITH DENSE FOG WITH A
VISIBILITY AT OR BELOW 1/4 MILE DURING THE MONTH. THE PEAK
WIND GUST OF 66 MPH FROM THE WEST OCCURRED ON THE 27TH.

$$



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