Climatological Report (Monthly)
Issued by NWS Sioux Falls, SD

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891
CXUS53 KFSD 011259
CLMSUX

CLIMATE REPORT
NATIONAL WEATHER SERVICE SIOUX FALLS SD
753 AM CDT SUN OCT 1 2017

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

...THE SIOUX CITY IA CLIMATE SUMMARY FOR THE MONTH OF SEPTEMBER 2017...

CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1889 TO 2017

WEATHER         OBSERVED          NORMAL  DEPART  LAST YEAR`S
                 VALUE   DATE(S)  VALUE   FROM    VALUE  DATE(S)
                                          NORMAL
................................................................
TEMPERATURE (F)
RECORD
 HIGH             103   MM
 LOW               24   MM
HIGHEST            94   09/22        MM      MM       93  09/21
LOWEST             41   09/27        MM      MM       41  09/30
AVG. MAXIMUM     78.8              76.2     2.6     79.0
AVG. MINIMUM     54.3              50.6     3.7     56.6
MEAN             66.6              63.4     3.2     67.8
DAYS MAX >= 90      2               2.1    -0.1        3
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         9.69   1965
 MINIMUM         0.07   1950
TOTALS           2.18              2.96   -0.78     2.78
DAILY AVG.       0.07              0.10   -0.03     0.09
DAYS >= .01         8               8.3    -0.3        8
DAYS >= .10         4               4.9    -0.9        6
DAYS >= .50         1               1.9    -0.9        2
DAYS >= 1.00        1               0.8     0.2        1
GREATEST
 24 HR. TOTAL    1.50   09/24 TO 09/25

DEGREE_DAYS
HEATING TOTAL      66               132     -66       50
 SINCE 7/1         74               147     -73       50
COOLING TOTAL     119                84      35      143
 SINCE 1/1        951               861      90     1165
.................................................................

WIND (MPH)
AVERAGE WIND SPEED              8.5
HIGHEST WIND SPEED/DIRECTION    35/330    DATE  09/20
HIGHEST GUST SPEED/DIRECTION    42/330    DATE  09/20

SKY COVER
POSSIBLE SUNSHINE (PERCENT)   MM
AVERAGE SKY COVER           0.30
NUMBER OF DAYS FAIR           23
NUMBER OF DAYS PC              3
NUMBER OF DAYS CLOUDY          4

AVERAGE RH (PERCENT)     75

WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM              6     MIXED PRECIP               0
HEAVY RAIN                3     RAIN                       5
LIGHT RAIN               11     FREEZING RAIN              0
LT FREEZING RAIN          0     HAIL                       0
HEAVY SNOW                0     SNOW                       0
LIGHT SNOW                0     SLEET                      0
FOG                      14     FOG W/VIS <= 1/4 MILE      2
HAZE                      0

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

$$



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