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

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CXUS55 KBOU 011540
CLMDEN

CLIMATE REPORT
NATIONAL WEATHER SERVICE
940 AM MDT SUN OCT 01 2023

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

...THE DENVER CO CLIMATE SUMMARY FOR THE MONTH OF SEPTEMBER 2023...

CLIMATE NORMAL PERIOD 1991 TO 2020
CLIMATE RECORD PERIOD 1872 TO 2023

WEATHER         OBSERVED          NORMAL  DEPART   LAST YEAR`S
                VALUE   DATE(S)   VALUE   FROM     VALUE DATE(S)
                                          NORMAL
................................................................
TEMPERATURE (F)
RECORD
 HIGH            101   09/05/2020
 LOW              17   09/29/1985
HIGHEST           99   09/01         91       8       99  09/07
                                                          09/08
LOWEST            40   09/24         35       5       42  09/25
AVG. MAXIMUM    83.7               79.6     4.1     84.3
AVG. MINIMUM    52.3               50.0     2.3     53.6
MEAN            68.0               64.8     3.2     69.0
DAYS MAX >= 90     7                4.2     2.8       10
DAYS MAX <= 32     0                0.0     0.0        0
DAYS MIN <= 32     0                0.7    -0.7        0
DAYS MIN <= 0      0                0.0     0.0        0

PRECIPITATION (INCHES)
RECORD
 MAXIMUM        5.61   2013
 MINIMUM           T   1892
TOTALS          0.67               1.35   -0.68     1.25
DAILY AVG.      0.02               0.04   -0.02     0.04
DAYS >= .01        5                6.0    -1.0        7
DAYS >= .10        2                2.7    -0.7        4
DAYS >= .50        0                0.6    -0.6        1
DAYS >= 1.00       0                0.1    -0.1        0
GREATEST
 24 HR. TOTAL   0.43   09/14 TO 09/15               0.50  09/02 TO 09/02
 STORM TOTAL    0.40                                0.50
 (MM/DD(HH))            MM

SNOWFALL (INCHES)
RECORDS
 TOTAL            MM   MM
TOTALS           0.0                 MM

DEGREE DAYS
HEATING TOTAL     33                105     -72       53
 SINCE 7/1        37                117     -80       MM
COOLING TOTAL    132                 99      33      178
 SINCE 1/1       779                842     -63       MM

FREEZE DATES
RECORD
 EARLIEST     09/08/1962
 LATEST       06/08/2007
EARLIEST                        MM
LATEST                          04/23
................................................................

WIND (MPH)
AVERAGE WIND SPEED              9.1
RESULTANT WIND SPEED/DIRECTION   3/200
HIGHEST WIND SPEED/DIRECTION    39/200    DATE  09/30
HIGHEST GUST SPEED/DIRECTION    52/190    DATE  09/30

SKY COVER
POSSIBLE SUNSHINE (PERCENT)   MM
AVERAGE SKY COVER           0.36
NUMBER OF DAYS FAIR           16
NUMBER OF DAYS PC             13
NUMBER OF DAYS CLOUDY          1


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

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

$$


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