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United States of America

DELAWARE, IOWA


Home > North America > United States > Iowa
Elevation: 330 meters     Latitude: 42 28N     Longitude: 091 23W

WEATHER
 
CURRENT CONDITIONS

Sunrise/Set
05:40 am
08:23 pm
Local Time
2:46 pm CDT
17 May, 2024
 
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MONTHLY - ALL WEATHER AVERAGES   [ Show Summary ]
[ °F ]   °C
TEMPERATURE 
Average Temperature
Years on Record: 83  Chart This
 ANNUAL  JAN  FEB  MAR  APR  MAY  JUN  JUL  AUG  SEP  OCT  NOV  DEC  
C8-8.1-6.60.28.214.719.922.421.316.710.72.1-5.4

Average High Temperature
Years on Record: 83  Chart This
 ANNUAL  JAN  FEB  MAR  APR  MAY  JUN  JUL  AUG  SEP  OCT  NOV  DEC  
C13.8-2.9-1.35.414.421.126.228.927.723.117.17.3-0.7

Average Low Temperature
Years on Record: 83  Chart This
 ANNUAL  JAN  FEB  MAR  APR  MAY  JUN  JUL  AUG  SEP  OCT  NOV  DEC  
C2.2-13.4-11.9-51.98.313.715.914.810.24.3-3.2-10.1

Highest Recorded Temperature
Years on Record: 83  Chart This
 ANNUAL  JAN  FEB  MAR  APR  MAY  JUN  JUL  AUG  SEP  OCT  NOV  DEC  
C43.91519.427.232.841.741.143.941.137.832.825.617.2

Lowest Recorded Temperature
Years on Record: 83  Chart This
 ANNUAL  JAN  FEB  MAR  APR  MAY  JUN  JUL  AUG  SEP  OCT  NOV  DEC  
C-35.6-34.4-35-35.6-16.1-5.61.74.41.7-8.9-11.7-23.3-33.3

Average Number of Days Above 90F/32C
Years on Record: 83  Chart This
 ANNUAL  JAN  FEB  MAR  APR  MAY  JUN  JUL  AUG  SEP  OCT  NOV  DEC  
Days15.9------------0.43.26.34.51.4---------

Average Number of Days Below 32F/0C
Years on Record: 83  Chart This
 ANNUAL  JAN  FEB  MAR  APR  MAY  JUN  JUL  AUG  SEP  OCT  NOV  DEC  
Days158.830.527.725.912.51.7---------0.77.922.129.7

Average Number of Days Below 0F/-17C
Years on Record: 83  Chart This
 ANNUAL  JAN  FEB  MAR  APR  MAY  JUN  JUL  AUG  SEP  OCT  NOV  DEC  
Days24.4107.41.1---------------------0.45.4



PRECIPITATION 
Average Precipitation
Years on Record: 83  Chart This
 ANNUAL  JAN  FEB  MAR  APR  MAY  JUN  JUL  AUG  SEP  OCT  NOV  DEC  
mm95531386210011913110211287615853

Average Number of Days With Precipitation
Years on Record: 83  Chart This
 ANNUAL  JAN  FEB  MAR  APR  MAY  JUN  JUL  AUG  SEP  OCT  NOV  DEC  
Days9265791110889766

Most Reported Precipitation in a Month
Years on Record: 83  Chart This
 ANNUAL  JAN  FEB  MAR  APR  MAY  JUN  JUL  AUG  SEP  OCT  NOV  DEC  
mm3431189013216724334326725332422014773

Least Reported Precipitation in a Month
Years on Record: 83  Chart This
 ANNUAL  JAN  FEB  MAR  APR  MAY  JUN  JUL  AUG  SEP  OCT  NOV  DEC  
mm------25924323217---27

Most Precipitation Reported in a Day
Years on Record: 83  Chart This
 ANNUAL  JAN  FEB  MAR  APR  MAY  JUN  JUL  AUG  SEP  OCT  NOV  DEC  
mm16163.829.581.572.6111129.8161108.7158.582.360.543.9

Avg. No. of Days w/Precip. Above 0.2in/5mm
Years on Record: 83  Chart This
 ANNUAL  JAN  FEB  MAR  APR  MAY  JUN  JUL  AUG  SEP  OCT  NOV  DEC  
Days64335688666544

Avg. # of Days w/Precip. Above 0.4in/10mm
Years on Record: 83  Chart This
 ANNUAL  JAN  FEB  MAR  APR  MAY  JUN  JUL  AUG  SEP  OCT  NOV  DEC  
Days22------1233333211

Avg. No. of Days w/Precip. Above 1in/25mm
Years on Record: 83  Chart This
 ANNUAL  JAN  FEB  MAR  APR  MAY  JUN  JUL  AUG  SEP  OCT  NOV  DEC  
Days6---------111111---------



PRECIPITATION - SNOW 
Average Snowfall
Years on Record: 83  Chart This
 ANNUAL  JAN  FEB  MAR  APR  MAY  JUN  JUL  AUG  SEP  OCT  NOV  DEC  
cm70.916.314.714.52.80.2------------0.25.816.3

Most Snow Reported in a Month
Years on Record: 83  Chart This
 ANNUAL  JAN  FEB  MAR  APR  MAY  JUN  JUL  AUG  SEP  OCT  NOV  DEC  
cm86.646.786.68045.76.3---------3.86.334.543.2



DEGREE DAYS 
Heating Degree Days
Years on Record: 83  Chart This
 ANNUAL  JAN  FEB  MAR  APR  MAY  JUN  JUL  AUG  SEP  OCT  NOV  DEC  
Days2792.2647.8546.7391.7157.837.22.2---0.616.7105.6323.9562.2

Cooling Degree Days
Years on Record: 83  Chart This
 ANNUAL  JAN  FEB  MAR  APR  MAY  JUN  JUL  AUG  SEP  OCT  NOV  DEC  
Days381.1---------2.221.178.9133.3103.936.75------

Growing Degree Days
Years on Record: 83  Chart This
 ANNUAL  JAN  FEB  MAR  APR  MAY  JUN  JUL  AUG  SEP  OCT  NOV  DEC  
Days1400.8------------146.4298.3385.8349.620020.7------



SKY CONDITIONS 
Average Length of Day
Years on Record: 30  Chart This
 ANNUAL  JAN  FEB  MAR  APR  MAY  JUN  JUL  AUG  SEP  OCT  NOV  DEC  
Hours12.71011.112.513.915.215.815.514.312.911.510.39.7



SOLAR RADIATION 
Average Daily Solar Radiation - Global
Years on Record: 22  Chart This
 ANNUAL  JAN  FEB  MAR  APR  MAY  JUN  JUL  AUG  SEP  OCT  NOV  DEC  
Mj/m213.76.69.612.716.419.621.721.518.615.210.66.65.5

Average Daily Solar Radiation - Diffuse
Years on Record: 22  Chart This
 ANNUAL  JAN  FEB  MAR  APR  MAY  JUN  JUL  AUG  SEP  OCT  NOV  DEC  
Mj/m25.42.63.65.26.98.18.68.27.25.54.12.82.3

Average Daily Solar Radiation - Reflected
Years on Record: 22  Chart This
 ANNUAL  JAN  FEB  MAR  APR  MAY  JUN  JUL  AUG  SEP  OCT  NOV  DEC  
Mj/m215.512.114.315.416.817.918.919.118.217.414.710.710.6

Average Daily Solar Radiation - Direct
Years on Record: 22  Chart This
 ANNUAL  JAN  FEB  MAR  APR  MAY  JUN  JUL  AUG  SEP  OCT  NOV  DEC  
Mj/m215.812.214.614.816.118.120.420.918.717.914.610.710.7

Maximum Daily Solar Radiation - Global
Years on Record: 22  Chart This
 ANNUAL  JAN  FEB  MAR  APR  MAY  JUN  JUL  AUG  SEP  OCT  NOV  DEC  
Mj/m213.76.69.612.716.419.621.721.518.615.210.66.65.5

Maximum Daily Solar Radiation - Diffuse
Years on Record: 22  Chart This
 ANNUAL  JAN  FEB  MAR  APR  MAY  JUN  JUL  AUG  SEP  OCT  NOV  DEC  
Mj/m25.72.63.85.47.18.59.18.87.664.332.3

Maximum Daily Solar Radiation - Reflected
Years on Record: 22  Chart This
 ANNUAL  JAN  FEB  MAR  APR  MAY  JUN  JUL  AUG  SEP  OCT  NOV  DEC  
Mj/m219.114.318.521.219.922.522.421.42122.517.515.512.9

Maximum Daily Solar Radiation - Direct
Years on Record: 22  Chart This
 ANNUAL  JAN  FEB  MAR  APR  MAY  JUN  JUL  AUG  SEP  OCT  NOV  DEC  
Mj/m22215.120.42421.627.928.72624.226.618.717.313.7

Minimum Daily Solar Radiation - Global
Years on Record: 22  Chart This
 ANNUAL  JAN  FEB  MAR  APR  MAY  JUN  JUL  AUG  SEP  OCT  NOV  DEC  
Mj/m210.95.87.510.213.114.918.416.716.610.97.94.44.5

Minimum Daily Solar Radiation - Diffuse
Years on Record: 22  Chart This
 ANNUAL  JAN  FEB  MAR  APR  MAY  JUN  JUL  AUG  SEP  OCT  NOV  DEC  
Mj/m24.82.43.14.26.477.57.66.54.43.72.52.1

Minimum Daily Solar Radiation - Reflected
Years on Record: 22  Chart This
 ANNUAL  JAN  FEB  MAR  APR  MAY  JUN  JUL  AUG  SEP  OCT  NOV  DEC  
Mj/m211.79.810.411.613.113.616.114.916.111.79.967.7

Minimum Daily Solar Radiation - Direct
Years on Record: 22  Chart This
 ANNUAL  JAN  FEB  MAR  APR  MAY  JUN  JUL  AUG  SEP  OCT  NOV  DEC  
Mj/m2109.599.410.210.314.612.514.99.18.24.87.1




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