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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