Climatological Report (Monthly)
Issued by NWS Duluth, MN

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CXUS53 KDLH 061748 CCA
CLMINL


CLIMATE REPORT...CORRECTED
NATIONAL WEATHER SERVICE DULUTH MN
1248 PM CDT SUN MAY 6 2018

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

...THE INTERNATIONAL FALLS MN CLIMATE SUMMARY FOR THE MONTH OF APRIL 2018...

CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1895 TO 2018

WEATHER         OBSERVED          NORMAL  DEPART  LAST YEAR`S
                 VALUE   DATE(S)  VALUE   FROM    VALUE  DATE(S)
                                          NORMAL
................................................................
TEMPERATURE (F)
RECORD
 HIGH              93   04/27/1952
 LOW              -14   04/03/1954
HIGHEST            82   04/30        MM      MM       68  04/08
LOWEST             -4   04/04        MM      MM       18  04/11
AVG. MAXIMUM     43.7              51.5    -7.8     51.9
AVG. MINIMUM     18.4              27.1    -8.7     27.6
MEAN             31.1              39.3    -8.2     39.8
DAYS MAX >= 90      0               0.0     0.0        0
DAYS MAX <= 32      7               1.5     5.5        2
DAYS MIN <= 32     27              21.8     5.2       25
DAYS MIN <= 0       2               0.2     1.8        0

PRECIPITATION (INCHES)
RECORD
 MAXIMUM         4.53   1925
 MINIMUM            T   1920
TOTALS           0.36              1.53   -1.17     1.58
DAILY AVG.       0.01              0.05   -0.04     0.05
DAYS >= .01         5               8.7    -3.7        8
DAYS >= .10         1               4.1    -3.1        5
DAYS >= .50         0               0.8    -0.8        1
DAYS >= 1.00        0               0.1    -0.1        0
GREATEST
 24 HR. TOTAL    0.22   04/15 TO 04/16

SNOWFALL (INCHES)
RECORDS
 TOTAL           36.3   1925
TOTALS            3.4               6.4    -3.0      2.6
SINCE 7/1        62.2              70.8    -8.6       MM
SNOWDEPTH AVG.      6                MM      MM        0
DAYS >= 1.0         2               1.7     0.3        1
GREATEST
 SNOW DEPTH        11   04/08                          2  04/27
                        04/07                             04/28
                        04/06
 24 HR TOTAL      1.8   04/16 TO 04/16

DEGREE_DAYS
HEATING TOTAL    1011               772     239      749
 SINCE 7/1      10062              9638     424       MM
COOLING TOTAL       1                 1       0        0
 SINCE 1/1          1                 1       0       MM
.................................................................

WIND (MPH)
AVERAGE WIND SPEED              7.5
HIGHEST WIND SPEED/DIRECTION    26/300    DATE  04/06
HIGHEST GUST SPEED/DIRECTION    36/220    DATE  04/30

SKY COVER
POSSIBLE SUNSHINE (PERCENT)   MM
AVERAGE SKY COVER           0.20
NUMBER OF DAYS FAIR           20
NUMBER OF DAYS PC              9
NUMBER OF DAYS CLOUDY          1

AVERAGE RH (PERCENT)     58

WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM              0     MIXED PRECIP               0
HEAVY RAIN                0     RAIN                       0
LIGHT RAIN                2     FREEZING RAIN              0
LT FREEZING RAIN          0     HAIL                       0
HEAVY SNOW                0     SNOW                       1
LIGHT SNOW                8     SLEET                      0
FOG                       7     FOG W/VIS <= 1/4 MILE      1
HAZE                      8

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

$$

.APRIL 2018 WAS COOLER THAN NORMAL WITH BELOW NORMAL PRECIPITATION
AT INTERNATIONAL FALLS MN...

THE AVERAGE TEMPERATURE FOR APRIL WAS 31.1 DEGREES WHICH WAS 8.2
DEGREES BELOW THE NORMAL OF 39.3 DEGREES MAKING THIS THE 2ND COLDEST
APRIL IN STATION HISTORY. THE HIGHEST TEMPERATURE FOR THE MONTH WAS
82 DEGREES ON THE 30TH. THE LOWEST TEMPERATURE WAS -4 DEGREES ON THE
4TH. TWO DAILY TEMPERATURE RECORDS WERE BROKEN FOR THE MONTH. THE
RECORD COLDEST HIGH TEMPERATURE OF 19 DEGREES WAS RECORDED ON THE
6TH. THIS BREAKS THE PREVIOUS RECORD OF 20 DEGREES SET IN 2007. THE
RECORD LOW OF -3 DEGREES WAS SET ON THE 8TH. THIS BREAKS THE
PREVIOUS RECORD OF 2 DEGREES SET IN 1950 AND TIED IN 1989. IN
ADDITION...THIS TIES THE 9TH COLDEST LOW TEMPERATURE FOR THE MONTH
OF APRIL. SIX DAYS HAD AVERAGE TEMPERATURES ABOVE NORMAL.

APRIL 2018 WAS DRIER THAN NORMAL WITH A TOTAL OF 0.36 INCHES OF
PRECIPITATION RECORDED FOR THE MONTH. THIS WAS 1.17 INCHES BELOW THE
NORMAL OF 1.53 INCHES MAKING THIS THE 4TH DRIEST APRIL IN STATION
HISTORY. THE GREATEST AMOUNT OF PRECIPITATION IN A 24 HOUR PERIOD
OCCURRED ON THE 15TH TO THE 16TH WHEN 0.22 INCHES WAS RECORDED. AT
LEAST A TRACE OF PRECIPITATION WAS RECORDED ON 12 DAYS. AT LEAST
0.01 OF AN INCH OF PRECIPITATION FELL ON 5 DAYS. AT LEAST 0.10 OF AN
INCH FELL ON 1 DAY. NO DAILY PRECIPITATION RECORDS WERE BROKEN IN
APRIL.

APRIL 2018 WAS BELOW NORMAL FOR SNOWFALL WITH A TOTAL OF 3.4 INCHES
OF SNOW FOR THE MONTH. THIS WAS 3.0 INCHES BELOW THE NORMAL OF 6.4
INCHES. THE GREATEST AMOUNT OF SNOWFALL IN A 24 HOUR PERIOD OCCURRED
ON THE 15TH TO THE 16TH WHERE 1.9 INCHES OF SNOW WAS RECORDED. NO
DAILY SNOWFALL RECORDS WERE BROKEN IN APRIL.

THE AVERAGE WIND SPEED FOR THE MONTH WAS 7.5 MPH. THE WINDIEST DAY
FOR THE MONTH WAS ON THE 6TH WITH AN AVERAGE WIND OF 15.4 MPH. THE
HIGHEST SUSTAINED WIND OCCURRED ON THE 6TH WITH A SPEED OF 26 MPH
OUT OF THE WEST NORTHWEST. A PEAK WIND GUST OF 36 MPH FROM THE
SOUTHWEST WAS RECORDED ON THE 30TH.

THERE WERE 1011 HEATING DEGREE DAYS FOR THE MONTH WHICH WAS 239
ABOVE THE NORMAL OF 772. THIS BROUGHT THE SEASONAL TOTAL TO 10062
WHICH WAS 424 ABOVE THE NORMAL OF 9638. THERE WAS 1 COOLING DEGREE
DAY FOR THE MONTH WHICH WAS NORMAL. THIS BROUGHT THE SEASONAL TOTAL
COOLING DEGREE DAYS TO 1 WHICH IS NORMAL.

THE OUTLOOK FOR MAY...NORMAL HIGHS BEGIN THE MONTH IN THE LOW 60S
AND WARM TO THE UPPER 60S AT THE END OF THE MONTH. NORMAL LOWS FOR
THE MONTH START IN THE MID 30S AND WARM TO THE MID 40S AT THE END OF
THE MONTH. NORMAL PRECIPITATION FOR MAY IS 2.86 INCHES. THE LATEST
CLIMATE PREDICTION CENTER OUTLOOK INDICATES THAT ODDS ARE TILTED
TOWARD ABOVE NORMAL TEMPERATURES AND SLIGHTLY TILTED TOWARD ABOVE
NORMAL PRECIPITATION.

$$

WL


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