541
CXUS53 KBIS 011715
CLMBIS

CLIMATE REPORT
NATIONAL WEATHER SERVICE BISMARCK, ND
1215 PM CDT WED OCT 01 2025

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

...THE BISMARCK ND CLIMATE SUMMARY FOR THE MONTH OF SEPTEMBER 2025...

CLIMATE NORMAL PERIOD: 1991 TO 2020
CLIMATE RECORD PERIOD: 1875 TO 2025

WEATHER         OBSERVED          NORMAL  DEPART   LAST YEAR`S
                VALUE   DATE(S)   VALUE   FROM     VALUE DATE(S)
                                          NORMAL
................................................................
TEMPERATURE (F)
RECORD
 HIGH            105   09/08/1959
                       09/07/1931
 LOW              10   09/30/1876
HIGHEST           91   09/12                          97  09/29
LOWEST            35   09/07                          35  09/22
AVG. MAXIMUM    77.1               73.4     3.7     83.6
AVG. MINIMUM    51.4               45.9     5.5     50.9
MEAN            64.3               59.7     4.6     67.3
DAYS MAX >= 90     2                1.9     0.1        8
DAYS MAX <= 32     0                0.0     0.0        0
DAYS MIN <= 32     0                1.6    -1.6        0
DAYS MIN <= 0      0                0.0     0.0        0

PRECIPITATION (INCHES)
RECORD
 MAXIMUM        6.93   1977
 MINIMUM        0.02   1948
TOTALS          4.14               1.72    2.42     0.21
DAILY AVG.      0.14               0.06    0.08     0.01
DAYS >= .01       10                7.3     2.7        7
DAYS >= .10        6                3.1     2.9        0
DAYS >= .50        2                0.9     1.1        0
DAYS >= 1.00       1                0.4     0.6        0
GREATEST
 24 HR. TOTAL   2.48   09/13 TO 09/14               0.09

SNOWFALL (INCHES)
RECORDS
 TOTAL           5.0   5
TOTALS           0.0                0.0     0.0      0.0
SINCE 7/1          T                0.0     0.0       MM
SNOWDEPTH AVG.     0                                   0
DAYS >= 1.0        0                0.0     0.0        0
GREATEST
 SNOW DEPTH        0                                   0  MM
 24 HR TOTAL      MM                                  MM

DEGREE DAYS
HEATING TOTAL     87                204    -117
 SINCE 7/1       120                254    -134
COOLING TOTAL     72                 44      28
 SINCE 1/1       589                534      55
................................................................

WIND (MPH)
HIGHEST WIND SPEED/DIRECTION    44/330    DATE  09/04
HIGHEST GUST SPEED/DIRECTION    67/310    DATE  09/04

SKY COVER
POSSIBLE SUNSHINE (PERCENT)   MM
NUMBER OF DAYS FAIR           20
NUMBER OF DAYS PC              6
NUMBER OF DAYS CLOUDY          4


WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM              5     MIXED PRECIP               0
HEAVY RAIN                3     RAIN                       6
LIGHT RAIN               10     FREEZING RAIN              0
LT FREEZING RAIN          0     HAIL                       0
HEAVY SNOW                0     SNOW                       0
LIGHT SNOW                0     SLEET                      0
FOG                      13     FOG W/VIS <= 1/4 MILE      2
HAZE                      3

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

$$