CLIMATE REPORT
NATIONAL WEATHER SERVICE DES MOINES IA 
846 AM CST WED JAN 1 2020

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

...THE DES MOINES IA CLIMATE SUMMARY FOR THE MONTH OF DECEMBER 2019...

CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1878 TO 2019

WEATHER         OBSERVED          NORMAL  DEPART  LAST YEAR'S         
                 VALUE   DATE(S)  VALUE   FROM    VALUE  DATE(S)      
                                          NORMAL                      
................................................................
TEMPERATURE (F)
RECORD
 HIGH              69   12/04/2017                                    
                        12/03/2012                                    
                        12/28/1984                                    
 LOW              -22   12/23/1989                                    
HIGHEST            60   12/25        55       5       55  12/19       
                                                          12/18       
LOWEST              8   12/15        -5      13       10  12/07       
AVG. MAXIMUM     41.4              34.0     7.4     39.1              
AVG. MINIMUM     23.3              18.0     5.3     22.7              
MEAN             32.3              26.0     6.3     30.9              
DAYS MAX >= 90      0               0.0     0.0        0              
DAYS MAX <= 32      8              12.5    -4.5        7              
DAYS MIN <= 32     27              28.0    -1.0       29              
DAYS MIN <= 0       0               3.2    -3.2        0              

PRECIPITATION (INCHES)
RECORD
 MAXIMUM         5.44   2015                                          
 MINIMUM            T   2002                                          
TOTALS           1.09              1.42   -0.33     2.90              
DAILY AVG.       0.04              0.05   -0.01     0.09              
DAYS >= .01         4               8.4    -4.4        6              
DAYS >= .10         2               3.6    -1.6        5              
DAYS >= .50         1               0.8     0.2        3              
DAYS >= 1.00        0               0.2    -0.2        1              

SNOWFALL (INCHES)
RECORDS
 TOTAL           28.2   2009                                          
TOTALS            2.8               9.0    -6.2      1.2              
SINCE 7/1         8.3              11.9    -3.6      2.7              
SNOWDEPTH AVG.      0                 4      -4        0              
DAYS >= 1.0         1               2.8    -1.8        0              
GREATEST
 SNOW DEPTH         1   12/16                         -1  12/02       
                        12/11                             12/03       
                        12/10                             12/04       
 24 HR TOTAL      1.2   12/01 TO 12/01                                

DEGREE_DAYS
HEATING TOTAL    1005              1209    -204     1049              
 SINCE 7/1       2423              2467     -44     2553              
COOLING TOTAL       0                 0       0        0              
 SINCE 1/1       1160              1066      94     1439              
.................................................................

WIND (MPH)
AVERAGE WIND SPEED              9.9
HIGHEST WIND SPEED/DIRECTION    33/310    DATE  12/09
HIGHEST GUST SPEED/DIRECTION    44/300    DATE  12/09

SKY COVER
POSSIBLE SUNSHINE (PERCENT)   MM                                      
AVERAGE SKY COVER           0.70
NUMBER OF DAYS FAIR            4
NUMBER OF DAYS PC             15
NUMBER OF DAYS CLOUDY         12

AVERAGE RH (PERCENT)     72

WEATHER CONDITIONS. NUMBER OF DAYS WITH 
  0
  1
  0
  0
  2
  0
  1
HAZE                      3                                           
                                                                    
-  INDICATES NEGATIVE NUMBERS.                                      
R  INDICATES RECORD WAS SET OR TIED.                                
MM INDICATES DATA IS MISSING.                                       
T  INDICATES TRACE AMOUNT.                                          

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