151
CXUS53 KUNR 011536
CLMRAP

CLIMATE REPORT
NATIONAL WEATHER SERVICE RAPID CITY SD
936 AM MDT WED OCT 01 2025

...................................

...THE RAPID CITY AIRPORT SD CLIMATE SUMMARY FOR THE MONTH OF SEPTEMBER 2025...

CLIMATE NORMAL PERIOD 1991 TO 2020
CLIMATE RECORD PERIOD 1942 TO 2025

WEATHER         OBSERVED          NORMAL  DEPART   LAST YEAR`S
                VALUE   DATE(S)   VALUE   FROM     VALUE DATE(S)
                                          NORMAL
................................................................
TEMPERATURE (F)
RECORD
 HIGH            104   09/05/2020
                       09/06/1978
                       09/04/1960
 LOW              18   09/24/1985
                       09/26/1942
HIGHEST          100   09/11                         100  09/02
                                                          09/03
                                                          09/29
LOWEST            33   09/06                          36  09/22
AVG. MAXIMUM    82.3               76.1     6.2     87.8
AVG. MINIMUM    50.6               46.4     4.2     52.1
MEAN            66.5               61.3     5.2     70.0
DAYS MAX >= 90     7                                  14
DAYS MAX <= 32     0                                   0
DAYS MIN <= 32     0                                   0
DAYS MIN <= 0      0                                   0

PRECIPITATION (INCHES)
RECORD
 MAXIMUM        3.94   1946
 MINIMUM        0.03   1975
TOTALS          1.05               1.22   -0.17     1.18
DAILY AVG.      0.04               0.04   -0.00     0.04
DAYS >= .01        5                                   4
DAYS >= .10        3                                   3
DAYS >= .50        1                                   1
DAYS >= 1.00       0                                   0
GREATEST
 24 HR. TOTAL   0.59   09/17 TO 09/18               0.82


DEGREE DAYS
HEATING TOTAL     57                175    -118       35
 SINCE 7/1        68                213    -145       MM
COOLING TOTAL    107                 62      45      192
 SINCE 1/1       797                604     193       MM
................................................................

WIND (MPH)
AVERAGE WIND SPEED              9.3
HIGHEST WIND SPEED/DIRECTION    43/330    DATE  09/04
HIGHEST GUST SPEED/DIRECTION    56/330    DATE  09/04

AVERAGE RH (PERCENT)     56

WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM              5     MIXED PRECIP               0
HEAVY RAIN                2     RAIN                       2
LIGHT RAIN                8     FREEZING RAIN              0
LT FREEZING RAIN          0     HAIL                       0
HEAVY SNOW                0     SNOW                       0
LIGHT SNOW                0     SLEET                      0
FOG                       9     FOG W/VIS <= 1/4 MILE      2
HAZE                      2

-  INDICATES NEGATIVE NUMBERS.
R  INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T  INDICATES TRACE AMOUNT.

$$