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United States of America

CASTLE ROCK, SOUTH DAKOTA


Home > North America > United States > South Dakota
Elevation: 954 meters     Latitude: 44 57N     Longitude: 103 46W

WEATHER
 
CURRENT CONDITIONS

 
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MONTHLY - ALL WEATHER AVERAGES   [ Show Summary ]
[ °F ]   °C
TEMPERATURE 
Average Temperature
Years on Record: 9  Chart This
 ANNUAL  JAN  FEB  MAR  APR  MAY  JUN  JUL  AUG  SEP  OCT  NOV  DEC  
C6.4-9.4-5.9-25.511.616.821.720.314.78.70.6-6.1

Average High Temperature
Years on Record: 9  Chart This
 ANNUAL  JAN  FEB  MAR  APR  MAY  JUN  JUL  AUG  SEP  OCT  NOV  DEC  
C13.7-2.80.94.812.218.823.329.428.822.817.58.10.4

Average Low Temperature
Years on Record: 9  Chart This
 ANNUAL  JAN  FEB  MAR  APR  MAY  JUN  JUL  AUG  SEP  OCT  NOV  DEC  
C-0.9-16.1-12.7-8.8-1.24.510.313.911.96.5-0.1-6.9-12.7

Highest Recorded Temperature
Years on Record: 9  Chart This
 ANNUAL  JAN  FEB  MAR  APR  MAY  JUN  JUL  AUG  SEP  OCT  NOV  DEC  
C41.717.817.225.628.93538.941.741.735.633.324.417.2

Lowest Recorded Temperature
Years on Record: 9  Chart This
 ANNUAL  JAN  FEB  MAR  APR  MAY  JUN  JUL  AUG  SEP  OCT  NOV  DEC  
C-37.2-37.2-32.2-27.2-16.7-9.4-1.13.32.2-6.1-12.8-28.3-33.9

Average Number of Days Above 90F/32C
Years on Record: 9  Chart This
 ANNUAL  JAN  FEB  MAR  APR  MAY  JUN  JUL  AUG  SEP  OCT  NOV  DEC  
Days22.5------------0.41.4810.61.90.2------

Average Number of Days Below 32F/0C
Years on Record: 9  Chart This
 ANNUAL  JAN  FEB  MAR  APR  MAY  JUN  JUL  AUG  SEP  OCT  NOV  DEC  
Days191.830.527.928.320.14.90.5------2.817.628.630.8

Average Number of Days Below 0F/-17C
Years on Record: 9  Chart This
 ANNUAL  JAN  FEB  MAR  APR  MAY  JUN  JUL  AUG  SEP  OCT  NOV  DEC  
Days33.512.97.94.3---------------------17.5



PRECIPITATION 
Average Precipitation
Years on Record: 9  Chart This
 ANNUAL  JAN  FEB  MAR  APR  MAY  JUN  JUL  AUG  SEP  OCT  NOV  DEC  
mm350610133357945326291388

Average Number of Days With Precipitation
Years on Record: 9  Chart This
 ANNUAL  JAN  FEB  MAR  APR  MAY  JUN  JUL  AUG  SEP  OCT  NOV  DEC  
Days8655591115986445

Most Reported Precipitation in a Month
Years on Record: 9  Chart This
 ANNUAL  JAN  FEB  MAR  APR  MAY  JUN  JUL  AUG  SEP  OCT  NOV  DEC  
mm14510292667121145815566302918

Least Reported Precipitation in a Month
Years on Record: 9  Chart This
 ANNUAL  JAN  FEB  MAR  APR  MAY  JUN  JUL  AUG  SEP  OCT  NOV  DEC  
mm---2179216313112---11

Most Precipitation Reported in a Day
Years on Record: 9  Chart This
 ANNUAL  JAN  FEB  MAR  APR  MAY  JUN  JUL  AUG  SEP  OCT  NOV  DEC  
mm53.64.612.77.119.33053.648.316.525.615.53.310.2

Avg. No. of Days w/Precip. Above 0.2in/5mm
Years on Record: 9  Chart This
 ANNUAL  JAN  FEB  MAR  APR  MAY  JUN  JUL  AUG  SEP  OCT  NOV  DEC  
Days35112458533111

Avg. # of Days w/Precip. Above 0.4in/10mm
Years on Record: 9  Chart This
 ANNUAL  JAN  FEB  MAR  APR  MAY  JUN  JUL  AUG  SEP  OCT  NOV  DEC  
Days6---------1121---1---------

Avg. No. of Days w/Precip. Above 1in/25mm
Years on Record: 9  Chart This
 ANNUAL  JAN  FEB  MAR  APR  MAY  JUN  JUL  AUG  SEP  OCT  NOV  DEC  
Days1---------------1------------------



PRECIPITATION - SNOW 
Average Snowfall
Years on Record: 9  Chart This
 ANNUAL  JAN  FEB  MAR  APR  MAY  JUN  JUL  AUG  SEP  OCT  NOV  DEC  
cm74.49.713.515.214.75.3---------10.5212.4

Most Snow Reported in a Month
Years on Record: 9  Chart This
 ANNUAL  JAN  FEB  MAR  APR  MAY  JUN  JUL  AUG  SEP  OCT  NOV  DEC  
cm48.316.830.730.548.320.3---------7.65.111.427.9



DEGREE DAYS 
Heating Degree Days
Years on Record: 9  Chart This
 ANNUAL  JAN  FEB  MAR  APR  MAY  JUN  JUL  AUG  SEP  OCT  NOV  DEC  
Days3136.7688.3526.7458.9222.886.710.6---3.938.9148.3366.7585

Cooling Degree Days
Years on Record: 9  Chart This
 ANNUAL  JAN  FEB  MAR  APR  MAY  JUN  JUL  AUG  SEP  OCT  NOV  DEC  
Days256.1------------6.126.1112.892.217.21.7------

Growing Degree Days
Years on Record: 9  Chart This
 ANNUAL  JAN  FEB  MAR  APR  MAY  JUN  JUL  AUG  SEP  OCT  NOV  DEC  
Days1076.9------------49.9203.3363.4320.3140---------



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  
Hours12.89.81112.514.115.516.215.814.51311.410.19.4



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/m214.45.99.112.717.421.223.62420.815.810.66.65.1

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/m24.92.13.14.86.47.78.17.46.453.62.41.8

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/m216.912.414.816.418.219.520.421.420.81916.112.610.6

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/m218.812.715.616.619.222.124.826.824.52117.113.211.8

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/m214.45.99.112.717.421.223.62420.815.810.66.65.1

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/m25.42.33.45.16.98.38.88.575.73.82.61.9

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/m219.614.517.718.922.621.822.923.22321.618.916.213.8

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/m223.615.819.820.627.4273131.329.125.421.118.416.7

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/m211.75.26.510.414.114.920.819.618.912.29.25.33.6

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/m24.41.92.84.45.47.17.26.75.64.43.221.6

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/m213.1109.612.914.413.618.117.418.713.813.296.4

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/m212.59.78.311.212.710.719.217.820.312.6138.56.2




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