971
CXUS53 KDVN 011940
CLMDBQ

CLIMATE REPORT
NATIONAL WEATHER SERVICE QUAD CITIES IA IL
240 PM CDT WED OCT 01 2025

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

...THE DUBUQUE IA CLIMATE SUMMARY FOR THE MONTH OF SEPTEMBER 2025...

CLIMATE NORMAL PERIOD 1991 TO 2020
CLIMATE RECORD PERIOD 1873 TO 2025

WEATHER         OBSERVED          NORMAL  DEPART   LAST YEAR`S
                VALUE   DATE(S)   VALUE   FROM     VALUE
                                          NORMAL
..............................................................
TEMPERATURE (F)
RECORD
 HIGH             99   09/07/1939
                       09/06/1922
 LOW              24   09/30/1899
HIGHEST           87   09/17         77      10
                       09/26
                       09/29
LOWEST            39   09/07         45      -6
AVG. MAXIMUM    78.5               72.9     5.6
AVG. MINIMUM    54.2               51.8     2.4
MEAN            66.3               62.3     4.0
DAYS MAX >= 90     0                0.3    -0.3
DAYS MAX <= 32     0                0.0     0.0
DAYS MIN <= 32     0                0.3    -0.3
DAYS MIN <= 0      0                0.0     0.0

PRECIPITATION (INCHES)
RECORD
 MAXIMUM       15.46   1965
 MINIMUM        0.07   1979
TOTALS          0.76               3.82   -3.06
DAILY AVG.      0.03               0.13   -0.10
DAYS >= .01        6                8.7    -2.7
DAYS >= .10        1
DAYS >= .50        1
DAYS >= 1.00       0                0.9    -0.9
GREATEST
 24 HR. TOTAL   0.57   09/22 TO 09/22

SNOWFALL (INCHES)
TOTALS           0.0                0.0     0.0
SINCE 7/1        0.0                0.0     0.0
SNOWDEPTH AVG.     0
DAYS >= TRACE      0                0.0     0.0
DAYS >= 1.0        0                0.0     0.0
GREATEST
 SNOW DEPTH        0
 24 HR TOTAL      MM

DEGREE DAYS
HEATING TOTAL     66                142     -76
 SINCE 7/1        86                169     -83
COOLING TOTAL    115                 63      52
 SINCE 1/1       866                630     236
..............................................................

WIND (MPH)
AVERAGE WIND SPEED              6.4
HIGHEST WIND SPEED/DIRECTION    31/360    DATE  09/22
HIGHEST GUST SPEED/DIRECTION    42/010    DATE  09/22

SKY COVER
POSSIBLE SUNSHINE (PERCENT)   MM
AVERAGE SKY COVER           0.21
NUMBER OF DAYS FAIR           22
NUMBER OF DAYS PC              7
NUMBER OF DAYS CLOUDY          1

AVERAGE RH (PERCENT)     71

WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM              3     HAIL                       0
SLEET                     0     FOG                       15
FOG W/VIS <= 1/4 MILE     2     HAZE                       3

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

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