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

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CLIMATE REPORT
NATIONAL WEATHER SERVICE EASTERN NORTH DAKOTA/GRAND FORKS
840 AM CDT FRI JUN 1 2018

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

...THE GRAND FORKS CLIMATE SUMMARY FOR THE MONTH OF MAY 2018...

CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1948 TO 2018

WEATHER         OBSERVED          NORMAL  DEPART  LAST YEAR`S
                 VALUE   DATE(S)  VALUE   FROM    VALUE  DATE(S)
                                          NORMAL
................................................................
TEMPERATURE (F)
RECORD
 HIGH             101   05/21/1964
 LOW                5   05/03/1967
HIGHEST            94   05/25        70      24       81  05/15
                                                          05/05
LOWEST             24   05/11        44     -20       32  05/19
                                                          05/11
                                                          05/01
AVG. MAXIMUM     75.8              68.0     7.8     69.2
AVG. MINIMUM     44.2              41.5     2.7     43.2
MEAN             60.0              54.8     5.2     56.2
DAYS MAX >= 90      4               0.5     3.5        0
DAYS MAX <= 32      0               0.0     0.0        0
DAYS MIN <= 32      3               4.3    -1.3        3
DAYS MIN <= 0       0               0.0     0.0        0

PRECIPITATION (INCHES)
RECORD
 MAXIMUM         5.74   2004
 MINIMUM         0.14   1967
TOTALS           1.55              2.68   -1.13     1.11
DAILY AVG.       0.05              0.09   -0.04     0.04
DAYS >= .01         8              10.6    -2.6        9
DAYS >= .10         5               5.6    -0.6        4
DAYS >= .50         1               1.8    -0.8        0
DAYS >= 1.00        0               0.5    -0.5        0
GREATEST
 24 HR. TOTAL    0.56   05/17 TO 05/17

SNOWFALL (INCHES)
RECORDS
 TOTAL            1.2   1967
TOTALS            0.0               0.1    -0.1      0.0
SINCE 7/1        52.4              47.4     5.0     44.1
SNOWDEPTH AVG.      0                MM      MM        0
DAYS >= 1.0         0               0.0     0.0        0
GREATEST
 SNOW DEPTH         0   MM                             0  MM
 24 HR TOTAL      0.0   05/31 TO 05/31

DEGREE_DAYS
HEATING TOTAL     221               334    -113      267
 SINCE 7/1       9413              9412       1     8014
COOLING TOTAL      73                16      57        2
 SINCE 1/1         73                17      56        2
.................................................................

WIND (MPH)
AVERAGE WIND SPEED              9.9
HIGHEST WIND SPEED/DIRECTION    35/360    DATE  05/09
HIGHEST GUST SPEED/DIRECTION    44/360    DATE  05/09

SKY COVER
POSSIBLE SUNSHINE (PERCENT)   MM
AVERAGE SKY COVER           0.50
NUMBER OF DAYS FAIR           10
NUMBER OF DAYS PC             16
NUMBER OF DAYS CLOUDY          5

AVERAGE RH (PERCENT)     65

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

&&

THE MONTH OF MAY AT GRAND FORKS INTERNATIONAL AIRPRT WAS WARMER AND
DRYER THAN NORMAL. THE AVERAGE TEMPERATURE FOR THE MONTH OF MAY WAS
60.0 DEGREES WHICH WAS 5.2 DEGREES WARMER THAN NORMAL. THIS LEAD TO
MAY 2018 BEGING THE SEVENTH WARMEST MAY ON RECORD AT GRAND FORKS
INTERNATIONAL AIRPORT. THE WARMEST MAY ON RECORD AT GRAND FORKS
INTERNATINAL AIRPORT HAD AN AVERAGE TEMPERATURE OF 66.9 DEGREES IN
1977. THESE WARMER THAN NORMAL TEMPERATURES BROKE HIGH TEMPERATURE
RECORDS ON MAY 24, 25, AND 26. THESE RECORD HIGH TEMPERATURES WERE
91, 94, AND 91 RESPECTIVLY. THE OBSERVED HIGH TEMPERATURE WAS ABOVE
THE NORMAL HIGH TEMPERATURE FOR 24 OF THE 31 DAYS IN MAY. THE LAST
11 DAYS OF THE MONTH WERE ABOVE NORMAL AND WERE THE WARMEST PART OF
THE MONTH.

THE PRECIPITATION FOR MAY AT GRAND FORKS INTERNATIONAL AIRPORT WAS
1.55 WHICH WAS 1.13 INCHES BELOW NORMAL. MOST OF THE RAIN FELL ON
MAY 17 WITH 0.56 INCHES RECORDED. TEN DAYS IN MAY REPORTED
PRECIPIATAION WITH 8 OF THEM REPORTING MORE THAN A TRACE.

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

$$

NC


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