Climatological Report (Monthly)
Issued by NWS Duluth, MN

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CXUS53 KDLH 011647
CLMDLH


CLIMATE REPORT
NATIONAL WEATHER SERVICE DULUTH MN
1135 AM CDT TUE AUG 1 2017

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

...THE DULUTH MN CLIMATE SUMMARY FOR THE MONTH OF JULY 2017...

CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1870 TO 2017

WEATHER         OBSERVED          NORMAL  DEPART  LAST YEAR`S
                 VALUE   DATE(S)  VALUE   FROM    VALUE  DATE(S)
                                          NORMAL
................................................................
TEMPERATURE (F)
RECORD
 HIGH             106   07/13/1936
 LOW               35   07/01/1988
HIGHEST            86   07/05        MM      MM       90  07/22
LOWEST             48   07/17        MM      MM       45  07/01
                        07/16
AVG. MAXIMUM     76.1              76.3    -0.2     77.2
AVG. MINIMUM     54.5              55.4    -0.9     57.0
MEAN             65.3              65.8    -0.5     67.1
DAYS MAX >= 90      0               0.9    -0.9        1
DAYS MAX <= 32      0               0.0     0.0        0
DAYS MIN <= 32      0               0.0     0.0        0
DAYS MIN <= 0       0               0.0     0.0        0

PRECIPITATION (INCHES)
RECORD
 MAXIMUM        10.83   1909
 MINIMUM         0.47   1875
TOTALS           4.11              3.85    0.26     4.39
DAILY AVG.       0.13              0.12    0.01     0.14
DAYS >= .01        10              11.8    -1.8       13
DAYS >= .10         8               6.8     1.2        7
DAYS >= .50         2               2.4    -0.4        3
DAYS >= 1.00        2               1.0     1.0        1
GREATEST
 24 HR. TOTAL    1.34   07/21 TO 07/21

DEGREE_DAYS
HEATING TOTAL      53                63     -10       29
 SINCE 7/1         53                63     -10       29
COOLING TOTAL      70                90     -20      103
 SINCE 1/1         83               124     -41      155
..................................................

WIND (MPH)
AVERAGE WIND SPEED              7.3
HIGHEST WIND SPEED/DIRECTION    37/260    DATE  07/06
HIGHEST GUST SPEED/DIRECTION    46/270    DATE  07/06

SKY COVER
POSSIBLE SUNSHINE (PERCENT)   MM
AVERAGE SKY COVER           0.40
NUMBER OF DAYS FAIR           16
NUMBER OF DAYS PC             11
NUMBER OF DAYS CLOUDY          4

AVERAGE RH (PERCENT)     77

WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM              0     MIXED PRECIP               1
HEAVY RAIN                3     RAIN                       5
LIGHT RAIN               13     FREEZING RAIN              0
LT FREEZING RAIN          0     HAIL                       1
HEAVY SNOW                0     SNOW                       0
LIGHT SNOW                0     SLEET                      0
FOG                      17     FOG W/VIS <= 1/4 MILE      6
HAZE                      0

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

$$

.JULY 2017 WAS COOLER WITH ABOVE NORMAL PRECIPITATION AT DULUTH MN...

THE AVERAGE TEMPERATURE FOR JULY WAS 65.3 DEGREES WHICH WAS 0.5
DEGREES BELOW THE NORMAL OF 65.8 DEGREES. THE HIGHEST TEMPERATURE
FOR THE MONTH WAS 86 DEGREES ON THE 5TH. THE LOWEST TEMPERATURE WAS
48 DEGREES ON THE 16TH AND 17TH. NO DAILY TEMPERATURE RECORDS WERE
BROKEN FOR THE MONTH. TWELVE DAYS HAD AVERAGE TEMPERATURES ABOVE
NORMAL.

JULY 2017 WAS ABOVE NORMAL FOR PRECIPITATION WITH A TOTAL OF 4.11
INCHES OF PRECIPITATION RECORDED FOR THE MONTH. THIS WAS 0.26 INCHES
ABOVE THE NORMAL OF 3.85 INCHES. THE GREATEST AMOUNT OF
PRECIPITATION IN A 24 HOUR PERIOD OCCURRED ON THE 21ST WHEN 1.34
INCHES WAS RECORDED. AT LEAST A TRACE OF PRECIPITATION WAS RECORDED
ON 15 DAYS. AT LEAST 0.01 INCHES OF PRECIPITATION FELL ON 10 DAYS.
AT LEAST 0.10 INCHES FELL ON 8 DAYS. AT LEAST 0.50 INCHES FELL ON 2
DAYS. AT LEAST 1.00 INCH FELL ON 2 DAYS. NO DAILY PRECIPITATION
RECORDS WERE BROKEN FOR THE MONTH.

THE AVERAGE WIND SPEED FOR THE MONTH WAS 7.3 MPH. THE WINDIEST DAY
OF THE MONTH WAS ON THE 15TH WITH AN AVERAGE WIND OF 12.0 MPH. THE
HIGHEST SUSTAINED WIND OCCURRED ON THE 6TH WITH A WIND FROM THE WEST
AT 37 MPH. A PEAK WIND GUST OF 46 MPH WAS RECORDED ON THE 6TH.

THERE WERE 53 HEATING DEGREE DAYS FOR THE MONTH WHICH WAS 10 BELOW
THE NORMAL OF 63. THIS BROUGHT THE SEASONAL TOTAL TO 53 WHICH WAS 10
BELOW THE NORMAL OF 63. THERE WERE 70 COOLING DEGREE DAYS FOR THE
MONTH WHICH WAS 20 BELOW THE NORMAL OF 90. THE SEASONAL TOTAL
COOLING DEGREE DAYS STANDS AT 83 WHICH WAS 41 BELOW THE NORMAL OF
124. THE HIGHEST SEA LEVEL PRESSURE FOR THE MONTH WAS 30.23 INCHES
REACHED ON THE 14TH AND THE LOWEST SEA LEVEL PRESSURE READING WAS
29.78 INCHES REACHED ON THE 22ND.

THE OUTLOOK FOR AUGUST...NORMAL HIGHS ARE IN THE MID 70S AT THE
BEGINNING OF THE MONTH AND COOL TO THE LOW 70S BY THE END OF THE
MONTH. NORMAL LOWS FOR THE MONTH BEGIN IN THE MID 50S AND COOL TO
THE LOW 50S BY THE END OF THE MONTH. NORMAL PRECIPITATION FOR AUGUST
IS 3.70 INCHES. THE LATEST CLIMATE PREDICTION CENTER OUTLOOK
INDICATES THAT THERE ARE NO CLEAR INDICATIONS FOR ABOVE OR BELOW
NORMAL TEMPERATURES AND PRECIPITATION FOR AUGUST.

$$

WL


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