Climatological Report (Monthly)
Issued by NWS Grand Forks, ND

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CXUS53 KFGF 011005
CLMFGF

CLIMATE REPORT
NATIONAL WEATHER SERVICE EASTERN NORTH DAKOTA/GRAND FORKS
505 AM CDT SUN OCT 1 2017

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

...THE GRAND FORKS UNIV. (NWS) CLIMATE SUMMARY FOR THE MONTH OF SEPTEMBER 2017...

CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1893 TO 2017

WEATHER         OBSERVED          NORMAL  DEPART  LAST YEAR`S
                 VALUE   DATE(S)  VALUE   FROM    VALUE
                                          NORMAL
.............................................................
TEMPERATURE (F)
RECORD
 HIGH             102   09/05/1978
 LOW               11   09/27/1893
HIGHEST            94   09/12        70      24
LOWEST             37   09/29        46      -9
AVG. MAXIMUM     71.3              69.7     1.6
AVG. MINIMUM     49.3              46.3     3.0
MEAN             60.3              58.0     2.3
DAYS MAX >= 90      2               0.4     1.6
DAYS MAX <= 32      0               0.0     0.0
DAYS MIN <= 32      0               1.2    -1.2
DAYS MIN <= 0       0               0.0     0.0

PRECIPITATION (INCHES)
RECORD
 MAXIMUM         7.54   1957
 MINIMUM         0.10   1897
TOTALS           4.88              2.05    2.83
DAILY AVG.       0.16              0.07    0.09
DAYS >= .01         9               8.2     0.8
DAYS >= .10         5               4.6     0.4
DAYS >= .50         4               1.2     2.8
DAYS >= 1.00        1               0.4     0.6
GREATEST
 24 HR. TOTAL    2.14   09/15 TO 09/15              3.73
 STORM TOTAL       MM                                 MM
 (MM/DD(HH))            MM

SNOWFALL (INCHES)
RECORDS
 TOTAL            0.5   1972
TOTALS            0.0               0.0     0.0
 LIQUID EQUIV    0.00              0.00    0.00
SINCE 7/1           T               0.0     0.0
 LIQUID 7/1        MM
DAYS >= TRACE       0               0.0     0.0
DAYS >= 1.0         0               0.0     0.0
GREATEST
 SNOW DEPTH         0   MM

DEGREE_DAYS
HEATING TOTAL     175               240     -65
 SINCE 7/1        193               304    -111
COOLING TOTAL      43                30      13
 SINCE 1/1        440               462     -22
..............................................................

SKY COVER
POSSIBLE SUNSHINE (PERCENT)   MM
AVERAGE SKY COVER             MM
NUMBER OF DAYS FAIR            0
NUMBER OF DAYS PC              0
NUMBER OF DAYS CLOUDY          0


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

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

&&

REMARKS...

THE MONTH OF SEPTEMBER AT THE GRAND FORKS NWS/UND SITE OVERALL WAS
SLIGHTLY ABOVE NORMAL WITH RESPECT TO TEMPERATURES. THERE WERE TWO
90-DEGREE DAYS DURING THE MONTH, ON SEPTEMBER 3 WITH A VALUE OF 92
DEGREES AND SEPTEMBER 12 WITH A VALUE OF 94 DEGREES. THE TEMPERATURE
ON SEPTEMBER 12 SET A NEW RECORD AND BROKE THE OLD ONE-DAY RECORD OF
93 DEGREES PREVIOUSLY SET IN 1952. THE AVERAGE TEMPERATURE FOR THE
MONTH WAS 60.3 DEGREES WHICH IS 2.3 DEGREES ABOVE NORMAL.

PRECIPITATION FOR SEPTEMBER STARTED OFF BELOW NORMAL FOR THE FIRST
HALF OF THE MONTH. A CHANGE IN THE WEATHER PATTERN IN THE MIDDLE OF
THE MONTH BROUGHT MUCH WETTER CONDITIONS TO THE AREA. A RECORD ONE-
DAY RAINFALL AMOUNT WAS SET ON SEPTEMBER 15 WITH A VALUE OF 2.14
INCHES, WHICH BROKE THE PREVIOUS RECORD OF 1.55 INCHES SET IN 1983.
AS A RESULT, THE TOTAL RAINFALL FOR THE MONTH WAS 4.88 INCHES WHICH
IS 2.83 INCHES ABOVE NORMAL. THIS MAKES SEPTEMBER THE EIGHTH WETTEST
MONTH ON RECORD.

REMEMBER...THIS DATA IS PROVISIONAL AND SUBJECT TO CHANGE. THE FINAL
AND OFFICIAL RECORDS WILL BE AVAILABLE FROM THE NATIONAL CENTERS FOR
ENVIRONMENTAL INFORMATION (FORMERLY THE NATIONAL CLIMATE DATA
CENTER).

$$



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