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

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000
CXUS53 KDMX 011434
CLMALO

CLIMATE REPORT
NATIONAL WEATHER SERVICE DES MOINES IA
931 AM CDT MON MAY 1 2017

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

...THE WATERLOO IA CLIMATE SUMMARY FOR THE MONTH OF APRIL 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             100   04/22/1980
 LOW               -4   04/06/1982
HIGHEST            79   04/09        81      -2       80  04/16
LOWEST             23   04/07        19       4       16  04/09
AVG. MAXIMUM     61.9              60.6     1.3     59.7
AVG. MINIMUM     40.6              37.2     3.4     38.4
MEAN             51.3              48.9     2.4     49.1
DAYS MAX >= 90      0               0.1    -0.1        0
DAYS MAX <= 32      0               0.1    -0.1        0
DAYS MIN <= 32      5               8.5    -3.5        9
DAYS MIN <= 0       0               0.0     0.0        0

PRECIPITATION (INCHES)
RECORD
 MAXIMUM        10.79   2008
 MINIMUM         0.28   1942
TOTALS           3.51              3.71   -0.20     2.60
DAILY AVG.       0.12              0.12    0.00     0.09
DAYS >= .01        13              10.9     2.1       13
DAYS >= .10         8               7.0     1.0        7
DAYS >= .50         3               2.4     0.6        1
DAYS >= 1.00        0               0.7    -0.7        0

SNOWFALL (INCHES)
RECORDS
 TOTAL           10.3   5
                        0
                        -26215
TOTALS            0.0               1.8    -1.8        T
SINCE 7/1        26.2              35.3    -9.1     46.0
SNOWDEPTH AVG.      0                MM      MM        0
DAYS >= 1.0         0               0.6    -0.6        0
GREATEST
 SNOW DEPTH         0   MM                             0  MM
 24 HR TOTAL      0.0   04/30 TO 04/30

DEGREE_DAYS
HEATING TOTAL     412               491     -79      473
 SINCE 7/1       5791              6816   -1025     5918
COOLING TOTAL       6                 8      -2        3
 SINCE 1/1          6                 8      -2        3
.................................................................

WIND (MPH)
AVERAGE WIND SPEED              10.6
HIGHEST WIND SPEED/DIRECTION    32/060    DATE  04/30
HIGHEST GUST SPEED/DIRECTION    39/050    DATE  04/30

SKY COVER
POSSIBLE SUNSHINE (PERCENT)   MM
AVERAGE SKY COVER           0.50
NUMBER OF DAYS FAIR           11
NUMBER OF DAYS PC             12
NUMBER OF DAYS CLOUDY          7

AVERAGE RH (PERCENT)     68

WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM              0     MIXED PRECIP               0
HEAVY RAIN                4     RAIN                       7
LIGHT RAIN               14     FREEZING RAIN              0
LT FREEZING RAIN          0     HAIL                       0
HEAVY SNOW                0     SNOW                       0
LIGHT SNOW                0     SLEET                      0
FOG                      17     FOG W/VIS <= 1/4 MILE      0
HAZE                      5

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

$$



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