017  
CXUS53 KDTX 161519 AAA  
CLMMBS  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE DETROIT/PONTIAC MI  
544 PM EDT TUE MAY 1 2018  
   
...............................
 
 
   
..THE TRI CITIES MI CLIMATE SUMMARY FOR THE MONTH OF APRIL 2018
 
 
CLIMATE NORMAL PERIOD 1981 TO 2010  
CLIMATE RECORD PERIOD 1898 TO 2018  
 
WEATHER OBSERVED NORMAL DEPART  
VALUE DATE(S) VALUE FROM  
NORMAL    
............................................
 
 
TEMPERATURE (F)  
HIGHEST 72 04/30 MM MM  
LOWEST 17 04/08 MM MM  
04/07  
AVG. MAXIMUM 48.5 56.1 -7.6  
AVG. MINIMUM 29.5 36.0 -6.5  
MEAN 39.0 46.1 -7.1  
DAYS MAX >= 90 0 0.0 0.0  
DAYS MAX <= 32 1 0.5 0.5  
DAYS MIN <= 32 18 9.8 8.2  
DAYS MIN <= 0 0 0.0 0.0  
 
PRECIPITATION (INCHES)  
TOTALS 2.54 2.89 -0.35  
DAILY AVG. 0.08 0.10 -0.02  
DAYS >= .01 11 11.4 -0.4  
DAYS >= .10 6 6.8 -0.8  
DAYS >= .50 2 1.7 0.3  
DAYS >= 1.00 0 0.5 -0.5  
GREATEST  
24 HR. TOTAL 0.72 04/15 TO 04/15  
STORM TOTAL MM  
(MM/DD(HH)) MM  
 
SNOWFALL (INCHES)  
TOTALS 5.5 1.7 3.8  
LIQUID EQUIV 0.55 0.20 0.35  
SINCE 7/1 41.4 41.5 -0.1  
LIQUID 7/1 4.14  
DAYS >= TRACE 10 1.3 8.7  
DAYS >= 1.0 2 0.8 1.2  
GREATEST  
SNOW DEPTH 3 04/15  
24 HR TOTAL 2.6 04/15 TO 04/15  
STORM TOTAL MM  
(MM/DD(HH)) MM  
 
DEGREE_DAYS  
HEATING TOTAL 772 572 200  
SINCE 7/1 6625 6640 -15  
COOLING TOTAL 0 4 -4  
SINCE 1/1 0 4 -4  
 
FREEZE DATES  
RECORD  
EARLIEST MM  
LATEST MM  
EARLIEST MM  
LATEST MM    
.............................................
 
 
WIND (MPH)  
AVERAGE WIND SPEED 10.8  
HIGHEST WIND SPEED/DIRECTION 38/050 DATE 04/14  
HIGHEST GUST SPEED/DIRECTION 48/060 DATE 04/14  
 
SKY COVER  
POSSIBLE SUNSHINE (PERCENT) MM  
AVERAGE SKY COVER 0.50  
NUMBER OF DAYS FAIR 11  
NUMBER OF DAYS PC 9  
NUMBER OF DAYS CLOUDY 10  
 
AVERAGE RH (PERCENT) 64  
 
 
- INDICATES NEGATIVE NUMBERS.  
R INDICATES RECORD WAS SET OR TIED.  
MM INDICATES DATA IS MISSING.  
T INDICATES TRACE AMOUNT.  
 

 
================================================================  
SOUTHEAST MICHIGAN CLIMATE SUMMARY FOR APRIL 2018  
 
APRIL 2018 MONTHLY STATISTICS AND RANKINGS  
-----------------------------------------------------------------  
 
SNOWFALL  
ACTUAL NORMAL DEPARTURE RANKING  
DETROIT AREA 2.4" 1.7" +0.7" 33RD SNOWIEST  
FLINT AREA 7.9" 2.3" +5.6" 6TH SNOWIEST  
SAGINAW 5.5" 1.7" +3.8" 14TH SNOWIEST  
 
SNOW YEAR SINCE JULY 1*  
 
ACTUAL NORMAL DEPARTURE RANKING  
DETROIT AREA 61.0" 40.8" +17.8" 15TH SNOWIEST  
FLINT AREA 85.3" 45.1" +32.3" 1ST SNOWIEST  
SAGINAW 41.4" 41.5" -0.1" 53RD LEAST SNOWY  
 
*NORMAL TO DATE (AS OF APRIL 30, 2018)  
 
PRECIPITATION  
ACTUAL NORMAL DEPARTURE RANKING  
DETROIT AREA 3.79" 2.90" +0.89" 30TH WETTEST  
FLINT AREA 3.11" 2.89" +0.22" 38TH WETTEST  
SAGINAW 2.54" 2.89" -0.35" 53RD WETTEST  
 
PRECIPITATION SINCE JANUARY 1*  
 
ACTUAL NORMAL DEPARTURE RANKING  
DETROIT AREA 12.05" 9.16" +2.89" 22ND WETTEST  
FLINT AREA 10.10" 7.91" +2.19" 19TH WETTEST  
SAGINAW 7.16" 8.27" -1.11" 46TH DRIEST  
 
*NORMAL TO DATE (AS OF APRIL 30, 2018)  
 
AVERAGE TEMPERATURE  
ACTUAL NORMAL DEPARTURE RANKING  
DETROIT AREA 43.0 49.2 -6.2 13TH COLDEST  
FLINT AREA 39.1 46.4 -7.3 1ST COLDEST  
SAGINAW 39.0 46.1 -7.1 2ND COLDEST  
 
AVERAGE HIGH TEMPERATURE  
ACTUAL NORMAL DEPARTURE RANKING  
DETROIT AREA 52.3 59.1 -6.8 19TH COLDEST  
FLINT AREA 49.3 57.3 -8.0 3RD COLDEST  
SAGINAW 48.5 56.1 -7.6 3RD COLDEST  
 
AVERAGE LOW TEMPERATURE  
ACTUAL NORMAL DEPARTURE RANKING  
DETROIT AREA 33.6 39.4 -5.8 11TH COLDEST  
FLINT AREA 28.9 35.5 -6.6 1ST COLDEST  
SAGINAW 29.5 36.0 -6.5 3RD COLDEST  
 
DETROIT AREA HAS A CLIMATE RECORD DATING TO NOVEMBER 1874  
FLINT AREA HAS A CLIMATE RECORD DATING TO JANUARY 1921  
SAGINAW HAS A CLIMATE RECORD DATING TO 1912  
 
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