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

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CXUS53 KDMX 011532
CLMALO

CLIMATE REPORT
NATIONAL WEATHER SERVICE DES MOINES IA
1008 AM CDT TUE MAY 1 2018

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

...THE WATERLOO IA CLIMATE SUMMARY FOR THE MONTH OF APRIL 2018...

CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1895 TO 2018

WEATHER         OBSERVED          NORMAL  DEPART  LAST YEAR`S
                 VALUE   DATE(S)  VALUE   FROM    VALUE  DATE(S)
                                          NORMAL
................................................................
TEMPERATURE (F)
RECORD
 HIGH             100   04/22/1980
 LOW               -4   04/06/1982
HIGHEST            83   04/30        81       2       79  04/09
LOWEST             11   04/04        19      -8       23  04/07
AVG. MAXIMUM     50.1              60.6   -10.5     61.9
AVG. MINIMUM     26.0              37.2   -11.2     40.6
MEAN             38.1              48.9   -10.8     51.3
DAYS MAX >= 90      0               0.1    -0.1        0
DAYS MAX <= 32      4               0.1     3.9        0
DAYS MIN <= 32     21               8.5    12.5        5
DAYS MIN <= 0       0               0.0     0.0        0

PRECIPITATION (INCHES)
RECORD
 MAXIMUM        10.79   2008
 MINIMUM         0.28   1942
TOTALS           1.73              3.71   -1.98     3.51
DAILY AVG.       0.06              0.12   -0.06     0.12
DAYS >= .01         9              10.9    -1.9       13
DAYS >= .10         6               7.0    -1.0        8
DAYS >= .50         0               2.4    -2.4        3
DAYS >= 1.00        0               0.7    -0.7        0

SNOWFALL (INCHES)
RECORDS
 TOTAL           12.1   2018
TOTALS           12.1R              1.8    10.3      0.0
SINCE 7/1        45.6              35.3    10.3     26.2
SNOWDEPTH AVG.      0                MM      MM        0
DAYS >= 1.0         3               0.6     2.4        0
GREATEST
 SNOW DEPTH         4   04/09                          0  MM
 24 HR TOTAL      4.4   04/08 TO 04/08

DEGREE_DAYS
HEATING TOTAL     801               491     310      412
 SINCE 7/1       7246              6816     430     5791
COOLING TOTAL       1                 8      -7        6
 SINCE 1/1          1                 8      -7        6
.................................................................

WIND (MPH)
AVERAGE WIND SPEED              11.0
HIGHEST WIND SPEED/DIRECTION    41/070    DATE  04/14
HIGHEST GUST SPEED/DIRECTION    52/070    DATE  04/14

SKY COVER
POSSIBLE SUNSHINE (PERCENT)   MM
AVERAGE SKY COVER           0.40
NUMBER OF DAYS FAIR           17
NUMBER OF DAYS PC              7
NUMBER OF DAYS CLOUDY          6

AVERAGE RH (PERCENT)     68

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

$$


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