Climatological Report (Seasonal)
Issued by NWS Bismarck, ND

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000
CXUS53 KBIS 011709
CLSISN

...THE WILLISTON ND CLIMATE SUMMARY FOR THE SEASON, FROM
3/1/2015 TO 5/31/2015...

CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1894 TO 2015

WEATHER         OBSERVED          NORMAL  DEPART  LAST YEAR`S
                 VALUE   DATE(S)  VALUE   FROM    VALUE  DATE(S)
                                          NORMAL
................................................................
TEMPERATURE (F)
RECORD
 HIGH             106   05/22/1980
 LOW              -35   03/14/1897
HIGHEST            83   05/27        MM      MM       87  05/24
                                                          05/23
LOWEST            -10   03/04        MM      MM      -22  03/01
AVG. MAXIMUM     59.0              55.0     4.0     52.9
AVG. MINIMUM     30.4              29.5     0.9     27.6
MEAN             44.7              42.2     2.5     40.2
DAYS MAX >= 90      0               0.3    -0.3        0
DAYS MAX <= 32      3               8.7    -5.7       14
DAYS MIN <= 32     52              52.0     0.0       58
DAYS MIN <= 0       3               3.1    -0.1        3

PRECIPITATION (INCHES)
RECORD
 MAXIMUM         9.25   2011
 MINIMUM         1.78   2009
TOTALS           2.56              3.63   -1.07     3.65
DAILY AVG.       0.03              0.04   -0.01     0.04
DAYS >= .01        20              25.3    -5.3       26
DAYS >= .10         8               9.7    -1.7       10
DAYS >= .50         1               1.3    -0.3        3
DAYS >= 1.00        0               0.5    -0.5        0
GREATEST
 24 HR. TOTAL    0.69     05/06 TO 05/06


DEGREE_DAYS
HEATING TOTAL    1842
COOLING TOTAL       1
..................................................

WIND (MPH)
HIGHEST WIND SPEED/DIRECTION    41/270    DATE  03/28
HIGHEST GUST SPEED/DIRECTION    56/260    DATE  03/28

SKY COVER
POSSIBLE SUNSHINE (PERCENT)    0
NUMBER OF DAYS FAIR           57
NUMBER OF DAYS PC             23
NUMBER OF DAYS CLOUDY          8

AVERAGE RH (PERCENT)     54

WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM              0     MIXED PRECIP               0
HEAVY RAIN                2     RAIN                       3
LIGHT RAIN               19     FREEZING RAIN              0
LT FREEZING RAIN          1     HAIL                       0
HEAVY SNOW                1     SNOW                       3
LIGHT SNOW               14     SLEET                      0
FOG                      22     FOG W/VIS <= 1/4 MILE      2
HAZE                      8

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


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