481 
CXUS53 KFSD 011514
CLMSUX

CLIMATE REPORT 
NATIONAL WEATHER SERVICE SIOUX FALLS SD
914 AM CST WED JAN 01 2020

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

...THE SIOUX CITY IA CLIMATE SUMMARY FOR THE MONTH OF DECEMBER 2019...

CLIMATE NORMAL PERIOD: 1981 TO 2010
CLIMATE RECORD PERIOD: 1889 TO 2019

WEATHER         OBSERVED          NORMAL  DEPART   LAST YEAR'S         
                VALUE   DATE(S)   VALUE   FROM     VALUE DATE(S)       
                                          NORMAL                       
................................................................
TEMPERATURE (F)
RECORD
 HIGH             71   12/06/1939                                      
 LOW             -28   12/29/1917                                      
HIGHEST           50   12/07         MM      MM       43  12/19        
                       12/21                                           
                       12/22                                           
                                                          12/18        
                                                          12/16        
LOWEST             1   12/16         MM      MM        1  12/29        
AVG. MAXIMUM    35.1               32.1     3.0     33.8               
AVG. MINIMUM    18.5               13.0     5.5     17.9               
MEAN            26.8               22.6     4.2     25.8               
DAYS MAX >= 90     0                0.0     0.0        0               
DAYS MAX <= 32    12               14.3    -2.3       13               
DAYS MIN <= 32    30               30.0     0.0       31               
DAYS MIN <= 0      0                4.7    -4.7        0               

PRECIPITATION (INCHES)
RECORD
 MAXIMUM        2.87   1911                                            
 MINIMUM        0.01   1943                                            
TOTALS          1.96               0.80    1.16     1.89               
DAILY AVG.      0.06               0.03    0.03     0.06               
DAYS >= .01        5                6.9    -1.9        6               
DAYS >= .10        2                2.4    -0.4        3               
DAYS >= .50        1                0.3     0.7        3               
DAYS >= 1.00       1                0.0     1.0        0               
GREATEST
 24 HR. TOTAL   1.52   12/28 TO 12/29                                  

SNOWFALL (INCHES)
RECORDS
 TOTAL          34.0   2009                                            
TOTALS           2.7                7.8    -5.1      4.5               
SINCE 7/1       10.7               13.2    -2.5       MM               
SNOWDEPTH AVG.     0                                   1               
DAYS >= 1.0        2                2.5    -0.5        1               
GREATEST
 SNOW DEPTH        2   12/16                           3  12/12        
                       12/17                                           
                                                          12/11        
                                                          12/10        
 24 HR TOTAL     1.0   12/09 TO 12/09                                  
                       12/15 TO 12/15                                  

DEGREE DAYS
HEATING TOTAL   1179               1316    -137     1207               
 SINCE 7/1      2761               2792     -31     2904               
COOLING TOTAL      0                  0       0        0               
 SINCE 1/1       910                869      41     1045               
................................................................

WIND (MPH)
AVERAGE WIND SPEED              9.5                                    
HIGHEST WIND SPEED/DIRECTION    38/320    DATE  12/30                  
HIGHEST GUST SPEED/DIRECTION    52/330    DATE  12/30                  

SKY COVER
POSSIBLE SUNSHINE (PERCENT)   MM                                       
AVERAGE SKY COVER           0.40                                       
NUMBER OF DAYS FAIR           15                                       
NUMBER OF DAYS PC              8                                       
NUMBER OF DAYS CLOUDY          8                                       

AVERAGE RH (PERCENT)     81                                            

WEATHER CONDITIONS. NUMBER OF DAYS WITH 
THUNDERSTORM              0     MIXED PRECIP               0         
HEAVY RAIN                2     RAIN                       2           
LIGHT RAIN                2     FREEZING RAIN              0          
LT FREEZING RAIN          2     HAIL                       0          
HEAVY SNOW                1     SNOW                       1           
LIGHT SNOW                9     SLEET                      0          
FOG                      18     FOG W/VIS <= 1/4 MILE      5           
HAZE                      0                                           

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

$$