659
CDUS43 KUNR 210831
CLI2WX
CLIMATE REPORT
NATIONAL WEATHER SERVICE RAPID CITY SD
231 AM MDT THU MAY 21 2026
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..THE BUFFALO SD CLIMATE SUMMARY FOR MAY 20 2026
CLIMATE NORMAL PERIOD 1991 TO 2020
CLIMATE RECORD PERIOD 9999 TO 9999
WEATHER ITEM OBSERVED TIME NORMAL DEPARTURE LAST
VALUE (LST) VALUE FROM YEAR
NORMAL
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TEMPERATURE (F)
YESTERDAY
MAXIMUM 72 305 PM 68 4 52
MINIMUM 36 514 AM 44 -8 34
AVERAGE 54 56 -2 43
PRECIPITATION (IN)
YESTERDAY 0.00 0.09 -0.09 0.05
MONTH TO DATE 0.07 1.46 -1.39 2.47
SINCE MAR 1 2.25 3.43 -1.18 6.07
SINCE JAN 1 2.65 4.15 -1.50 6.99
DEGREE DAYS
HEATING
YESTERDAY 11 10 1 22
MONTH TO DATE 266 260 6 207
SINCE MAR 1 1703 1884 -181 868
SINCE JUL 1 6384 7483 -1099 6341
COOLING
YESTERDAY 0 0 0 0
MONTH TO DATE 0 0 0 22
SINCE MAR 1 3 0 3 22
SINCE JAN 1 3 0 3 22
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WIND (MPH)
HIGHEST WIND SPEED 30 HIGHEST WIND DIRECTION S (160)
HIGHEST GUST SPEED 37 HIGHEST GUST DIRECTION SE (150)
AVERAGE WIND SPEED 12.5
RELATIVE HUMIDITY (PERCENT)
HIGHEST 79 500 AM
LOWEST 18 200 PM
AVERAGE 49
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SUNRISE AND SUNSET
MAY 21 2026...........SUNRISE 517 AM MDT SUNSET 825 PM MDT
MAY 22 2026...........SUNRISE 516 AM MDT SUNSET 826 PM MDT
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
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