Climatological Report (Monthly)
Issued by NWS Duluth, MN

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CXUS53 KDLH 050313
CLMINL

CLIMATE REPORT
NATIONAL WEATHER SERVICE DULUTH MN
1013 PM CDT THU JUN 4 2015

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

...THE INTERNATIONAL FALLS MN CLIMATE SUMMARY FOR THE MONTH OF MAY 2015...

CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1895 TO 2015

WEATHER         OBSERVED          NORMAL  DEPART  LAST YEAR`S
                 VALUE   DATE(S)  VALUE   FROM    VALUE  DATE(S)
                                          NORMAL
................................................................
TEMPERATURE (F)
RECORD
 HIGH              95   05/21/1964
 LOW                8   05/17/1926
HIGHEST            82   05/02        MM      MM       89  05/30
LOWEST             28   05/19        MM      MM       25  05/04
                        05/05
AVG. MAXIMUM     63.6              64.8    -1.2     62.9
AVG. MINIMUM     36.6              38.7    -2.1     39.8
MEAN             50.1              51.8    -1.7     51.4
DAYS MAX >= 90      0               0.0     0.0        0
DAYS MAX <= 32      0               0.0     0.0        0
DAYS MIN <= 32      9               7.7     1.3        9
DAYS MIN <= 0       0               0.0     0.0        0

PRECIPITATION (INCHES)
RECORD
 MAXIMUM         6.67   1985
 MINIMUM         0.07   1917
TOTALS           4.79              2.86    1.93     4.08
DAILY AVG.       0.15              0.09    0.06     0.13
DAYS >= .01        15              12.4     2.6       14
DAYS >= .10        12               6.7     5.3        7
DAYS >= .50         5               1.8     3.2        4
DAYS >= 1.00        1               0.3     0.7        1
GREATEST
 24 HR. TOTAL    1.75   05/17 TO 05/18

DEGREE_DAYS
HEATING TOTAL     452               419      33      438
 SINCE 7/1      10134             10057      77    11382
COOLING TOTAL       0                 8      -8       23
 SINCE 1/1          0                 9      -9       23
.................................................................

WIND (MPH)
AVERAGE WIND SPEED              7.2
HIGHEST WIND SPEED/DIRECTION    24/300    DATE  05/03
HIGHEST GUST SPEED/DIRECTION    35/180    DATE  05/17

SKY COVER
POSSIBLE SUNSHINE (PERCENT)   MM
AVERAGE SKY COVER           0.50
NUMBER OF DAYS FAIR           13
NUMBER OF DAYS PC              8
NUMBER OF DAYS CLOUDY         10

AVERAGE RH (PERCENT)     67

WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM              0     MIXED PRECIP               0
HEAVY RAIN                5     RAIN                       9
LIGHT RAIN               18     FREEZING RAIN              0
LT FREEZING RAIN          0     HAIL                       0
HEAVY SNOW                0     SNOW                       0
LIGHT SNOW                3     SLEET                      0
FOG                      15     FOG W/VIS <= 1/4 MILE      1
HAZE                      2

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

$$

.MAY 2015 WAS COOLER AND WETTER THAN NORMAL AT INTERNATIONAL  FALLS
MN...

THE AVERAGE TEMPERATURE FOR MAY WAS 50.1 DEGREES WHICH WAS 1.7
DEGREES COOLER THAN THE NORMAL OF 51.8 DEGREES MAKING THIS THE 33RD
COOLEST MAY IN STATION HISTORY. THE HIGHEST TEMPERATURE FOR THE
MONTH WAS 82 DEGREES ON THE 2ND. THE LOWEST TEMPERATURE WAS 28
DEGREES ON THE 5TH AND 19TH. NO DAILY TEMPERATURE RECORDS WERE TIED
OR BROKEN FOR THE MONTH.

MAY 2015 HAD ABOVE NORMAL PRECIPITATION WITH A TOTAL OF 4.79 INCHES
WHICH WAS 1.93 INCHES ABOVE THE NORMAL OF 2.86 INCHES MAKING THIS THE
10TH WETTEST MAY IN RECORDED HISTORY. THE GREATEST AMOUNT OF
PRECIPITATION IN A 24 HOUR PERIOD OCCURRED ON THE 17TH TO THE 18TH
WHEN 1.75 INCHES WAS RECORDED. AT LEAST A TRACE OF PRECIPITATION WAS
REPORTED ON 18 DAYS. AT LEAST 0.01 INCHES OF PRECIPITATION FELL ON
15 DAYS. AT LEAST 0.10 INCHES OF PRECIPITATION FELL ON 12 DAYS. AT
LEAST 0.50 INCHES OF PRECIPITATION FELL ON 5 DAYS. AT LEAST 1.00
INCHES OF PRECIPITATION FELL ON 1 DAY. A TRACE OF SNOW FELL FOR THE
MONTH WHICH WAS 0.2 INCHES BELOW THE AVERAGE OF 0.2 INCHES. THIS
TIED FOR THE 2ND LEAST SNOWIEST MAY IN STATION HISTORY. ONE DAILY
PRECIPITATION RECORD WAS SET FOR THE MONTH. 1.08 INCHES OF
PRECIPITATION FELL ON THE 17TH WHICH BROKE THE OLD RECORD OF 1.07
INCHES SET IN 1996. ONE DAILY SNOWFALL RECORD WAS TIED FOR THE
MONTH. A TRACE OF SNOW FELL ON THE 18TH TYING THE RECORD SET IN 1998.

THE AVERAGE WIND SPEED FOR THE MONTH WAS 7.2 MPH. THE WINDIEST DAY
FOR THE MONTH WAS ON THE 18TH WITH AN AVERAGE WIND SPEED OF 14.4
MPH. THE GREATEST SUSTAINED WINDS OCCURRED ON THE 3RD WITH A WIND
FROM THE NORTHWEST AT 24 MPH. A PEAK GUST OF 35 MPH FROM THE SOUTH
WAS RECORDED ON THE 17TH. THERE WERE 452 HEATING DEGREE DAYS FOR THE
MONTH WHICH WAS 33 DEGREES ABOVE THE NORMAL OF 419. THIS BROUGHT THE
SEASONAL TOTAL OF HEATING DEGREE DAYS TO 10134 WHICH IS 77 ABOVE THE
NORMAL OF 10057. THERE WERE 0 COOLING DEGREE DAYS FOR THE MONTH WHICH
IS 8 DEGREES BELOW THE NORMAL OF 8. THE SEASONAL TOTAL OF COOLING
DEGREE DAYS STANDS AT 0 WHICH IS 9 DEGREES BELOW THE NORMAL OF 9.
THE HIGHEST BAROMETRIC PRESSURE READING FOR THE MONTH WAS 30.46
INCHES REACHED ON THE 13TH. THE LOWEST BAROMETRIC WAS 29.49 INCHES
REACHED ON THE 17TH.

$$







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