478
CXUS53 KDLH 011303
CLMDLH
CLIMATE REPORT
NATIONAL WEATHER SERVICE DULUTH MN
803 AM CDT WED MAY 1 2013
...............................
..THE DULUTH MN CLIMATE SUMMARY FOR THE MONTH OF APRIL 2013
CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1870 TO 2013
WEATHER OBSERVED NORMAL DEPART LAST YEAR'S
VALUE DATE(S) VALUE FROM VALUE DATE(S)
NORMAL
............................................................
TEMPERATURE (F)
RECORD
HIGH 88 04/27/1952
LOW -5 04/04/1975
04/03/1954
HIGHEST 68 04/28 MM MM 72 04/14
LOWEST 8 04/14 MM MM 21 04/17
04/16
AVG. MAXIMUM 42.1 49.2 -7.1 52.2
AVG. MINIMUM 26.7 30.0 -3.3 32.7
MEAN 34.4 39.6 -5.2 42.4
DAYS MAX >= 90 0 0.0 0.0 0
DAYS MAX <= 32 2 1.5 0.5 0
DAYS MIN <= 32 23 17.8 5.2 14
DAYS MIN <= 0 0 0.0 0.0 0
PRECIPITATION (INCHES)
RECORD
MAXIMUM 8.18 2001
MINIMUM 0.24 1987
TOTALS 5.04 2.43 2.61 3.70
DAILY AVG. 0.17 0.08 0.09 0.12
DAYS >= .01 18 10.6 7.4 11
DAYS >= .10 11 5.5 5.5 9
DAYS >= .50 3 1.6 1.4 1
DAYS >= 1.00 0 0.3 -0.3 1
GREATEST
24 HR. TOTAL 0.99 04/15 TO 04/16
04/16 TO 04/16
04/16 TO 04/16
SNOWFALL (INCHES)
RECORDS
MAXIMUM 50.8R 2013
MINIMUM 0.0 1976
TOTALS 50.8R 6.9 43.9 0.6
SINCE 7/1 129.4 85.7 43.7 49.1
SNOWDEPTH AVG. 15 MM MM 0
DAYS >= 1.0 9 1.8 7.2 0
GREATEST
SNOW DEPTH 28 04/19 1 04/16
24 HR TOTAL 15.2 04/18 TO 04/19
DEGREE_DAYS
HEATING TOTAL 908 762 146 671
SINCE 7/1 8749 8839 -90 7239
COOLING TOTAL 0 0 0 0
SINCE 1/1 0 0 0 0
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WIND (MPH)
AVERAGE WIND SPEED 10.7
HIGHEST WIND SPEED/DIRECTION 38/070 DATE 04/11
HIGHEST GUST SPEED/DIRECTION 48/080 DATE 04/11
SKY COVER
POSSIBLE SUNSHINE (PERCENT) MM
AVERAGE SKY COVER 0.60
NUMBER OF DAYS FAIR 8
NUMBER OF DAYS PC 13
NUMBER OF DAYS CLOUDY 9
AVERAGE RH (PERCENT) 65
WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM 0 MIXED PRECIP 0
HEAVY RAIN 1 RAIN 3
LIGHT RAIN 9 FREEZING RAIN 1
LT FREEZING RAIN 3 HAIL 0
HEAVY SNOW 4 SNOW 7
LIGHT SNOW 17 SLEET 1
FOG 15 FOG W/VIS <= 1/4 MILE 5
HAZE 6
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
APRIL 2013 WAS COLDER AND WETTER THAN NORMAL AT DULUTH MN
THE AVERAGE TEMPERATURE FOR APRIL WAS 34.4 DEGREES WHICH WAS 5.2
DEGREES COLDER THAN THE NORMAL OF 39.6 DEGREES MAKING THIS THE 16TH
COLDEST APRIL IN STATION HISTORY. THE HIGHEST TEMPERATURE FOR THE
MONTH WAS 68 DEGREES ON THE 28TH. THE LOWEST TEMPERATURE WAS 8
DEGREES ON THE 14TH. TWO DAILY TEMPERATURE RECORDS WERE BROKEN OR
TIED FOR THE MONTH. A TEMPERATURE OF 8 DEGREES WAS RECORDED ON THE
14 TYING THE RECORD SET IN 1926. A TEMPERATURE OF 11 DEGREES WAS
RECORDED ON THE 20TH BREAKING THE OLD RECORD OF 14 DEGREES SET IN
1928.
APRIL 2013 WAS WETTER THAN NORMAL WITH A TOTAL OF 5.04 INCHES OF
PRECIPITATION RECORDED FOR THE MONTH. THIS WAS 2.61 INCHES ABOVE THE
NORMAL OF 2.43 INCHES MAKING THIS THE 5TH WETTEST APRIL IN RECORDED
HISTORY. THE GREATEST AMOUNT OF PRECIPITATION IN A 24 HOUR PERIOD
OCCURRED ON THE 18TH THROUGH THE 19TH WHEN 0.99 INCHES OF
PRECIPITATION WAS RECORDED. AT LEAST A TRACE OF PRECIPITATION WAS
REPORTED ON 21 DAYS. AT LEAST 0.01 INCHES OF PRECIPITATION FELL ON 18
DAYS. AT LEAST 0.10 INCHES FELL ON 11 DAYS. AT LEAST 0.50 INCHES FELL
ON 3 DAYS. 50.8 INCHES OF SNOWFALL WAS RECORDED FOR THE MONTH WHICH
WAS 43.9 INCHES ABOVE THE NORMAL OF 6.9 INCHES MAKING THIS THE
SNOWIEST MONTH ON RECORD. ONE DAILY PRECIPITATION RECORD WAS SET FOR
THE MONTH. 0.96 INCHES OF LIQUID PRECIPITATION FELL ON THE 18TH BREAKING
THE OLD RECORD SET IN 1930 OF 0.90 INCHES. FOUR DAILY SNOWFALL
RECORDS WERE BROKEN OR TIED FOR THE MONTH. 7.0 INCHES OF SNOW FELL
ON THE 11TH BREAKING THE OLD RECORD OF 2.0 INCHES SET IN 1993. 6.0
INCHES OF SNOW FELL ON THE 12TH TYING THE OLD RECORD SET IN 1924.
11.2 INCHES OF SNOW FELL ON THE 18TH BREAKING THE OLD RECORD OF 5.9
INCHES SET IN 1995. 8.2 INCHES OF SNOW FELL ON THE 22ND BREAKING THE
OLD RECORD OF 7.8 INCHES SET IN 1972.
THE AVERAGE WIND SPEED FOR THE MONTH WAS 10.7 MPH. THE WINDIEST DAY
FOR THE MONTH WAS ON THE 11TH WITH AN AVERAGE WIND SPEED OF 27.5 MPH.
THE GREATEST SUSTAINED WINDS OCCURRED ON THE 11TH WITH A WIND FROM
THE EAST AT 38 MPH. A PEAK GUST OF 48 MPH FROM THE EAST WAS RECORDED
ON THE 11TH. THERE WERE 908 HEATING DEGREE DAYS FOR THE MONTH WHICH
WAS 146 ABOVE THE NORMAL OF 1054. THIS BROUGHT THE SEASONAL TOTAL TO
8749 WHICH WAS 90 BELOW THE NORMAL OF 8839. THERE WERE 0 COOLING
DEGREE DAYS FOR THE MONTH WHICH WAS NORMAL. THE SEASONAL TOTAL
COOLING DEGREE DAYS REMAIN AT 0 WHICH IS NORMAL. THE HIGHEST
BAROMETRIC PRESSURE READING FOR THE MONTH WAS 30.42 INCHES REACHED
ON THE 17TH AND THE LOWEST BAROMETRIC PRESSURE READING WAS 29.43
INCHES REACHED ON THE 30TH.
THE OUTLOOK FOR MAY...NORMAL HIGHS BEGIN IN THE MID 50S AND WARM TO
THE MID 60S AT THE END OF THE MONTH. NORMAL LOWS FOR THE MONTH BEGIN
IN THE MID 30S AND RISE TO THE MID 40S AT THE END OF THE MONTH.
NORMAL PRECIPITATION FOR MAY IS 3.23 INCHES. NORMAL SNOWFALL FOR MAY
IS 0.4 INCHES. NEAR NORMAL TEMPERATURES AND NEAR NORMAL
PRECIPITATION ARE FORECASTED FOR MAY.
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