Climatological Report (Monthly)
Issued by NWS Des Moines, IA

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CXUS53 KDMX 011237
CLMALO

CLIMATE REPORT
NATIONAL WEATHER SERVICE DES MOINES IA
729 AM CDT SUN OCT 1 2017

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

...THE WATERLOO IA CLIMATE SUMMARY FOR THE MONTH OF SEPTEMBER 2017...

CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1895 TO 2017

WEATHER         OBSERVED          NORMAL  DEPART  LAST YEAR`S
                 VALUE   DATE(S)  VALUE   FROM    VALUE  DATE(S)
                                          NORMAL
................................................................
TEMPERATURE (F)
RECORD
 HIGH             102   09/07/1939
                        09/06/1922
 LOW               19   09/30/1899
HIGHEST            93   09/22        90       3       92  09/06
LOWEST             38   09/07        33       5       45  09/27
AVG. MAXIMUM     79.8              75.3     4.5     77.3
AVG. MINIMUM     52.2              50.7     1.5     56.3
MEAN             66.0              63.0     3.0     66.8
DAYS MAX >= 90      6               1.4     4.6        1
DAYS MAX <= 32      0               0.0     0.0        0
DAYS MIN <= 32      0               0.6    -0.6        0
DAYS MIN <= 0       0               0.0     0.0        0

PRECIPITATION (INCHES)
RECORD
 MAXIMUM        11.63   1941
 MINIMUM         0.42   1953
TOTALS           0.79              2.63   -1.84     7.32
DAILY AVG.       0.03              0.09   -0.06     0.24
DAYS >= .01         6               8.5    -2.5       11
DAYS >= .10         3               5.2    -2.2        8
DAYS >= .50         0               1.9    -1.9        3
DAYS >= 1.00        0               0.5    -0.5        2

SNOWFALL (INCHES)
RECORDS
 TOTAL              T   5
                        0
                        -26215
TOTALS            0.0               0.0     0.0      0.0
SINCE 7/1         0.0               0.0     0.0      0.0
SNOWDEPTH AVG.      0                MM      MM        0
DAYS >= 1.0         0               0.0     0.0        0
GREATEST
 SNOW DEPTH         0   MM                             0  MM
 24 HR TOTAL      0.0   09/30 TO 09/30

DEGREE_DAYS
HEATING TOTAL      79               138     -59       43
 SINCE 7/1         96               158     -62       48
COOLING TOTAL     119                78      41      104
 SINCE 1/1        710               790     -80      857
.................................................................

WIND (MPH)
AVERAGE WIND SPEED              8.2
HIGHEST WIND SPEED/DIRECTION    32/340    DATE  09/04
HIGHEST GUST SPEED/DIRECTION    40/340    DATE  09/04

SKY COVER
POSSIBLE SUNSHINE (PERCENT)   MM
AVERAGE SKY COVER           0.20
NUMBER OF DAYS FAIR           24
NUMBER OF DAYS PC              6
NUMBER OF DAYS CLOUDY          0

AVERAGE RH (PERCENT)     69

WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM              0     MIXED PRECIP               0
HEAVY RAIN                2     RAIN                       2
LIGHT RAIN                6     FREEZING RAIN              0
LT FREEZING RAIN          0     HAIL                       0
HEAVY SNOW                0     SNOW                       0
LIGHT SNOW                0     SLEET                      0
FOG                      13     FOG W/VIS <= 1/4 MILE      3
HAZE                      1

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

$$


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