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United States of America

KEYSTONE, SOUTH DAKOTA


Home > North America > United States > South Dakota
Elevation: 4957 feet     Latitude: 43 53N     Longitude: 103 27W

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MONTHLY - ALL WEATHER AVERAGES   [ Show Summary ]
[ °C ]   °F
TEMPERATURE 
Average Temperature
Years on Record: 49  Chart This
 ANNUAL  JAN  FEB  MAR  APR  MAY  JUN  JUL  AUG  SEP  OCT  NOV  DEC 
F 46.12628.633.842.352.16269.868.459.147.635.327.7

Average High Temperature
Years on Record: 49  Chart This
 ANNUAL  JAN  FEB  MAR  APR  MAY  JUN  JUL  AUG  SEP  OCT  NOV  DEC 
F 5635.53843.652.262.572.480.679.369.757.544.336.7

Average Low Temperature
Years on Record: 49  Chart This
 ANNUAL  JAN  FEB  MAR  APR  MAY  JUN  JUL  AUG  SEP  OCT  NOV  DEC 
F 36.116.619.12432.441.851.55957.648.437.726.418.7

Highest Recorded Temperature
Years on Record: 49  Chart This
 ANNUAL  JAN  FEB  MAR  APR  MAY  JUN  JUL  AUG  SEP  OCT  NOV  DEC 
F 1006868788593991009997847567

Lowest Recorded Temperature
Years on Record: 49  Chart This
 ANNUAL  JAN  FEB  MAR  APR  MAY  JUN  JUL  AUG  SEP  OCT  NOV  DEC 
F -38-38-29-12114273533191-12-31

Average Number of Days Above 90F/32C
Years on Record: 49  Chart This
 ANNUAL  JAN  FEB  MAR  APR  MAY  JUN  JUL  AUG  SEP  OCT  NOV  DEC 
Days 9.7------------0.11.34.63.10.7---------

Average Number of Days Below 32F/0C
Years on Record: 49  Chart This
 ANNUAL  JAN  FEB  MAR  APR  MAY  JUN  JUL  AUG  SEP  OCT  NOV  DEC 
Days 154.427.124.424.115.64.10.3------1.79.520.926.7

Average Number of Days Below 0F/-17C
Years on Record: 49  Chart This
 ANNUAL  JAN  FEB  MAR  APR  MAY  JUN  JUL  AUG  SEP  OCT  NOV  DEC 
Days 135.131.1---------------------0.73.2



PRECIPITATION 
Average Precipitation
Years on Record: 49  Chart This
 ANNUAL  JAN  FEB  MAR  APR  MAY  JUN  JUL  AUG  SEP  OCT  NOV  DEC 
in 21.70.40.61.12.443.93.221.71.40.60.5

Average Number of Days With Precipitation
Years on Record: 49  Chart This
 ANNUAL  JAN  FEB  MAR  APR  MAY  JUN  JUL  AUG  SEP  OCT  NOV  DEC 
Days 88556811131197544

Most Reported Precipitation in a Month
Years on Record: 49  Chart This
 ANNUAL  JAN  FEB  MAR  APR  MAY  JUN  JUL  AUG  SEP  OCT  NOV  DEC 
in 10.91.41.43.1610.910.18.45.965.52.11.8

Least Reported Precipitation in a Month
Years on Record: 49  Chart This
 ANNUAL  JAN  FEB  MAR  APR  MAY  JUN  JUL  AUG  SEP  OCT  NOV  DEC 
in ---------0.2---0.10.70.40.40.10.1------

Most Precipitation Reported in a Day
Years on Record: 49  Chart This
 ANNUAL  JAN  FEB  MAR  APR  MAY  JUN  JUL  AUG  SEP  OCT  NOV  DEC 
in 6.30.611.72.33.46.32.52.32.11.81.10.6

Avg. No. of Days w/Precip. Above 0.2in/5mm
Years on Record: 49  Chart This
 ANNUAL  JAN  FEB  MAR  APR  MAY  JUN  JUL  AUG  SEP  OCT  NOV  DEC 
Days 51224578754322

Avg. # of Days w/Precip. Above 0.4in/10mm
Years on Record: 49  Chart This
 ANNUAL  JAN  FEB  MAR  APR  MAY  JUN  JUL  AUG  SEP  OCT  NOV  DEC 
Days 13---------2332111------

Avg. No. of Days w/Precip. Above 1in/25mm
Years on Record: 49  Chart This
 ANNUAL  JAN  FEB  MAR  APR  MAY  JUN  JUL  AUG  SEP  OCT  NOV  DEC 
Days 3------------111---------------



PRECIPITATION - SNOW 
Average Snowfall
Years on Record: 49  Chart This
 ANNUAL  JAN  FEB  MAR  APR  MAY  JUN  JUL  AUG  SEP  OCT  NOV  DEC 
in 55.86.17.811.312.11.80.2------0.63.36.26.4

Most Snow Reported in a Month
Years on Record: 49  Chart This
 ANNUAL  JAN  FEB  MAR  APR  MAY  JUN  JUL  AUG  SEP  OCT  NOV  DEC 
in 501920.537.15022.55------8.319.43026



DEGREE DAYS 
Heating Degree Days
Years on Record: 30  Chart This
 ANNUAL  JAN  FEB  MAR  APR  MAY  JUN  JUL  AUG  SEP  OCT  NOV  DEC 
Days 780912591054100574044917658632595809651201

Cooling Degree Days
Years on Record: 30  Chart This
 ANNUAL  JAN  FEB  MAR  APR  MAY  JUN  JUL  AUG  SEP  OCT  NOV  DEC 
Days 420------------66216514344---------

Growing Degree Days
Years on Record: 49  Chart This
 ANNUAL  JAN  FEB  MAR  APR  MAY  JUN  JUL  AUG  SEP  OCT  NOV  DEC 
Days1882.3------------65.1360613.8570.4273---------







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