Issued by NWS Grand Rapids, MI
000 CXUS53 KGRR 012345 CLMGRR CLIMATE REPORT...CORRECTED GREATEST 24 HR TOTAL NATIONAL WEATHER SERVICE GRAND RAPIDS, MI 745 PM EDT FRI AUG 1 2008 ................................... ...THE GRAND RAPIDS MI CLIMATE SUMMARY FOR THE MONTH OF JULY 2008... CLIMATE NORMAL PERIOD 1971 TO 2000 CLIMATE RECORD PERIOD 1892 TO 2008 WEATHER OBSERVED NORMAL DEPART LAST YEAR`S VALUE DATE(S) VALUE FROM VALUE DATE(S) NORMAL ................................................................ TEMPERATURE (F) RECORD HIGH 108 07/13/1936 LOW 41 07/06/1983 HIGHEST 89 07/17 MM MM 97 07/31 07/16 LOWEST 50 07/01 MM MM 50 07/02 AVG. MAXIMUM 82.1 82.3 -0.2 83.8 AVG. MINIMUM 62.2 60.5 1.7 60.7 MEAN 72.1 71.4 0.7 72.2 DAYS MAX >= 90 0 MM MM 6 DAYS MAX <= 32 0 MM MM 0 DAYS MIN <= 32 0 MM MM 0 DAYS MIN <= 0 0 MM MM 0 PRECIPITATION (INCHES) TOTALS 5.42 3.56 1.86 1.24 DAILY AVG. 0.17 0.11 0.06 0.04 DAYS >= .01 9 MM MM 12 DAYS >= .10 7 MM MM 6 DAYS >= .50 2 MM MM 0 DAYS >= 1.00 1 MM MM 0 GREATEST 24 HR. TOTAL 3.18 07/01 TO 07/02 07/02 TO 07/02 07/02 TO 07/03 SNOWFALL (INCHES) TOTALS 0.0 0.0 0.0 0.0 SINCE 7/1 0.0 SNOWDEPTH AVG. 0 MM MM 0 DAYS >= 1.0 0 0.0 0.0 0 GREATEST SNOW DEPTH 0 MM 0 MM 24 HR TOTAL 0.0 07/31 TO 07/31 DEGREE_DAYS HEATING TOTAL 1 10 -9 2 SINCE 7/1 1 10 -9 2 COOLING TOTAL 229 217 12 234 SINCE 1/1 383 387 -4 512 ................................................................. WIND (MPH) AVERAGE WIND SPEED 7.9 HIGHEST WIND SPEED/DIRECTION 37/250 DATE 07/30 HIGHEST GUST SPEED/DIRECTION 49/240 DATE 07/30 SKY COVER POSSIBLE SUNSHINE (PERCENT) 58 NUMBER OF DAYS FAIR 11 NUMBER OF DAYS PC 17 NUMBER OF DAYS CLOUDY 3 AVERAGE RH (PERCENT) 67 WEATHER CONDITIONS. NUMBER OF DAYS WITH THUNDERSTORM 6 MIXED PRECIP 0 HEAVY RAIN 5 RAIN 6 LIGHT RAIN 11 FREEZING RAIN 0 LT FREEZING RAIN 0 HAIL 0 HEAVY SNOW 0 SNOW 0 LIGHT SNOW 0 SLEET 0 FOG 18 FOG W/VIS <= 1/4 MILE 0 HAZE 10 - INDICATES NEGATIVE NUMBERS. R INDICATES RECORD WAS SET OR TIED. MM INDICATES DATA IS MISSING. T INDICATES TRACE AMOUNT. && JULY 2008 WILL BE MOST REMEMBERED FOR THE HEAVY RAIN DURING THE FIRST HALF OF THE MONTH AND FOR RELATIVELY PLEASANT TEMPERATURES THROUGHOUT THE MONTH. THE MONTH STARTED COOL AND WET. AROUND THE 15TH THAT TURNED AROUND AND IT WAS WARMER THAN NORMAL FROM THE 15TH THROUGH THE 21ST. COOLER WEATHER THEN RETURNED BUT PRECIPITATION WAS ON THE LIGHT SIDE. FROM THE 28TH THROUGH THE END OF THE MONTH WARMER THAN NORMAL TEMPERATURES RETURNED. THERE WERE SOME HEAVY THUNDERSTORMS DURING THE EARLY MORNING HOURS OF THE 30TH...MOSTLY NEAR AND NORTH OF INTERSTATE 96. THE WARMEST WEATHER OF THE MONTH WAS FROM THE 15TH THROUGH THE 18TH. HIGHS ACROSS THE AREA WERE IN THE UPPER 80S TO LOWER 90S. BALDWIN HAD THE HIGHEST TEMPERATURE OF THE MONTH FOR ANY SITE IN SOUTHWEST MICHIGAN WHEN IT HIT 94 DEGREES ON THE 17TH. WHILE THE AVERAGE TEMPERATURE FOR THE MONTH WAS NEAR NORMAL... THE NUMBER OF HOT DAYS...HIGHS IN THE 90S...WAS UNUSUALLY LOW. GRAND RAPIDS NORMALLY HAS 5 DAYS WITH HIGHS OF 90 DEGREES OR HIGHER IN JULY. JULY 2008 HAD NONE. THE LAST TIME THIS OCCURRED WAS IN 2000. RAINFALL WAS ABOVE NORMAL ACROSS THE AREA. THE AREAS WITH THE HEAVIEST PRECIPITATION WERE NEAR AND SOUTH OF INTERSTATE 96 AND WEST OF US-131. MOST OF THE PRECIPITATION FELL DURING THE FIRST TWO WEEKS OF JULY. THE BIGGEST SINGLE RAINFALL EVENT OCCURRED DURING THE AFTERNOON INTO THE EARLY EVENING OF JULY 2ND. A SERIES OF THUNDERSTORMS CONTINUED TO FOLLOW THE SAME PATH... RESULTING IN RAINFALL AMOUNTS OF UP TO 5 INCHES IN EAST GRAND RAPIDS AND 3.18 INCHES AT THE NWS SITE AT THE GERALD R FORD AIRPORT. THERE WERE NUMEROUS REPORTS OF OVER 2 INCHES OF RAIN FROM THAT EVENT. NUMEROUS REPORTS OF FLOODED INTERSECTIONS AND WATER COVERING ROADS WERE RECEIVED. AS FOR SEVERE WEATHER...THE SAME THUNDERSTORMS THAT CAUSED THE HEAVY RAIN AND FLOODING ON JULY 2ND WERE RESPONSIBLE FOR THE MOST SEVERE WEATHER REPORTS FOR THE MONTH. THERE WERE 54 SEVERE WEATHER EVENTS REPORTED IN THE GRAND RAPIDS CWA ON THAT ONE DAY. THESE REPORTS WERE A MIXTURE OF LARGE HAIL AND DAMAGING WINDS. THERE WERE SOME PERORTS OF HAIL UP TO THE SIZE OF GOLF BALLS COVERING THE GROUND IN MONTCALM COUNTY. HAIL WAS REPORTED TO HAVE DAMAGED A FARMERS CORN CROP IN EATON COUNTY. THERE WAS ANOTHER SIGNIFICANT SEVERE WEATHER EVENT LATE IN THE AFTERNOON ON THE 16TH WHEN 22 REPORTS OF LARGE HAIL AND DAMAGING WINDS WERE RECEIVED. IN SOUTHERN ISABELLA COUNTY...OVER 6 INCHES OF RAIN FELL AND WASHED OUT SOME ROADS. THERE WERE 81 TOTAL SEVERE WEATHER REPORTS FOR THE MONTH OF JULY. AN EF0 TORNADO AT 317 AM ON THE 30TH IN CLARE COUNTY WAS CONFIRMED DURING AN OFFICIAL NWS STORM SURVEY. A BARN WAS BLOWN DOWN AND A CARPORT ROOF BLOWN OFF. ONE LARGE WILLOW TREE WAS UPROOTED. SEVERAL OTHER TREES WERE SNAPPED OFF OR UPROOTED. $$ MARINO/HOVING