Issued by NWS Grand Rapids, MI
000
CXUS53 KGRR 011147 CCA
CLMGRR
CLIMATE REPORT
NATIONAL WEATHER SERVICE GRAND RAPIDS, MI
645 AM EST TUE JAN 1 2008
...................................
...THE GRAND RAPIDS CLIMATE SUMMARY FOR THE MONTH OF DECEMBER 2007...
CLIMATE NORMAL PERIOD 1971 TO 2000
CLIMATE RECORD PERIOD 1892 TO 2007
WEATHER OBSERVED NORMAL DEPART LAST YEAR`S
VALUE DATE(S) VALUE FROM VALUE DATE(S)
NORMAL
................................................................
TEMPERATURE (F)
RECORD
HIGH 69 12/05/2001
LOW -18 12/19/1983
HIGHEST 52 12/23 MM MM 55 12/22
LOWEST 11 12/01 MM MM 13 12/08
AVG. MAXIMUM 34.6 33.7 0.9 40.9
AVG. MINIMUM 23.8 21.4 2.4 29.4
MEAN 29.2 27.6 1.6 35.1
DAYS MAX >= 90 0 MM MM 0
DAYS MAX <= 32 11 MM MM 6
DAYS MIN <= 32 30 MM MM 20
DAYS MIN <= 0 0 MM MM 0
PRECIPITATION (INCHES)
TOTALS 3.03 2.70 0.33 3.76
DAILY AVG. 0.10 0.09 0.01 0.12
DAYS >= .01 18 MM MM 14
DAYS >= .10 8 MM MM 7
DAYS >= .50 1 MM MM 3
DAYS >= 1.00 0 MM MM 1
GREATEST
24 HR. TOTAL 0.79 12/01 TO 12/02
SNOWFALL (INCHES)
TOTALS 25.0 18.8 6.2 11.6
SINCE 7/1 27.9
SNOWDEPTH AVG. 2 MM MM 1
DAYS >= 1.0 7 5.5 1.5 4
GREATEST
SNOW DEPTH 6 12/17 5 12/06
12/16 12/05
24 HR TOTAL 5.0 12/23 TO 12/23
DEGREE_DAYS
HEATING TOTAL 1102 1147 -45 919
SINCE 7/1 2231 2604 -373 2335
COOLING TOTAL 0 0 0 0
SINCE 1/1 971 613 358 696
.................................................................
WIND (MPH)
AVERAGE WIND SPEED 9.7
HIGHEST WIND SPEED/DIRECTION 44/210 DATE 12/23
HIGHEST GUST SPEED/DIRECTION 64/200 DATE 12/23
SKY COVER
POSSIBLE SUNSHINE (PERCENT) 14
NUMBER OF DAYS FAIR 1
NUMBER OF DAYS PC 5
NUMBER OF DAYS CLOUDY 25
AVERAGE RH (PERCENT) 76
WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM 0 MIXED PRECIP 2
HEAVY RAIN 1 RAIN 4
LIGHT RAIN 7 FREEZING RAIN 1
LT FREEZING RAIN 7 HAIL 2
HEAVY SNOW 3 SNOW 10
LIGHT SNOW 22 SLEET 2
FOG 25 FOG W/VIS <= 1/4 MILE 5
HAZE 21
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
...................................
&&
...THE LANSING CLIMATE SUMMARY FOR THE MONTH OF DECEMBER 2007...
CLIMATE NORMAL PERIOD 1971 TO 2000
CLIMATE RECORD PERIOD 1864 TO 2007
WEATHER OBSERVED NORMAL DEPART LAST YEAR`S
VALUE DATE(S) VALUE FROM VALUE DATE(S)
NORMAL
................................................................
TEMPERATURE (F)
RECORD
HIGH 70 12/31/1875
LOW -25 12/18/1884
12/08/1864
HIGHEST 50 12/23 MM MM 54 12/22
LOWEST 11 12/05 MM MM 14 12/08
AVG. MAXIMUM 32.9 34.1 -1.2 40.4
AVG. MINIMUM 21.4 19.7 1.7 29.2
MEAN 27.2 26.9 0.3 34.8
DAYS MAX >= 90 0 MM MM 0
DAYS MAX <= 32 14 MM MM 6
DAYS MIN <= 32 30 MM MM 21
DAYS MIN <= 0 0 MM MM 0
PRECIPITATION (INCHES)
TOTALS 2.43 2.17 0.26 3.07
DAILY AVG. 0.08 0.07 0.01 0.10
DAYS >= .01 15 MM MM 12
DAYS >= .10 7 MM MM 5
DAYS >= .50 1 MM MM 3
DAYS >= 1.00 0 MM MM 0
GREATEST
24 HR. TOTAL 0.72 12/01 TO 12/02
SNOWFALL (INCHES)
TOTALS 16.7 13.2 3.5 3.2
SINCE 7/1 19.7
SNOWDEPTH AVG. 2 MM MM 0
DAYS >= 1.0 4 4.4 -0.4 1
GREATEST
SNOW DEPTH 6 12/21 3 12/06
12/20 12/05
12/19
24 HR TOTAL 6.2R 12/16
DEGREE_DAYS
HEATING TOTAL 1166 1167 -1 929
SINCE 7/1 2433 2696 -263 2407
COOLING TOTAL 0 0 0 0
SINCE 1/1 773 558 215 613
.................................................................
WIND (MPH)
AVERAGE WIND SPEED 9.2
HIGHEST WIND SPEED/DIRECTION 38/220 DATE 12/23
HIGHEST GUST SPEED/DIRECTION 56/210 DATE 12/23
SKY COVER
POSSIBLE SUNSHINE (PERCENT) MM
NUMBER OF DAYS FAIR 2
NUMBER OF DAYS PC 7
NUMBER OF DAYS CLOUDY 22
AVERAGE RH (PERCENT) 77
WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM 0 MIXED PRECIP 2
HEAVY RAIN 0 RAIN 3
LIGHT RAIN 7 FREEZING RAIN 0
LT FREEZING RAIN 8 HAIL 0
HEAVY SNOW 2 SNOW 6
LIGHT SNOW 25 SLEET 5
FOG 25 FOG W/VIS <= 1/4 MILE 4
HAZE 12
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
...................................
&&
...THE MUSKEGON CLIMATE SUMMARY FOR THE MONTH OF DECEMBER 2007...
CLIMATE NORMAL PERIOD 1971 TO 2000
CLIMATE RECORD PERIOD 1895 TO 2007
WEATHER OBSERVED NORMAL DEPART LAST YEAR`S
VALUE DATE(S) VALUE FROM VALUE DATE(S)
NORMAL
................................................................
TEMPERATURE (F)
RECORD
HIGH 64 12/02/1982
LOW -15 12/31/1976
HIGHEST 52 12/23 MM MM 52 12/22
LOWEST 16 12/01 MM MM 18 12/07
AVG. MAXIMUM 34.6 34.6 0.0 41.1
AVG. MINIMUM 24.8 22.6 2.2 30.8
MEAN 29.7 28.6 1.1 36.0
DAYS MAX >= 90 0 MM MM 0
DAYS MAX <= 32 10 MM MM 5
DAYS MIN <= 32 30 MM MM 17
DAYS MIN <= 0 0 MM MM 0
PRECIPITATION (INCHES)
TOTALS 2.79 2.64 0.15 3.11
DAILY AVG. 0.09 0.09 0.00 0.10
DAYS >= .01 17 MM MM 12
DAYS >= .10 8 MM MM 9
DAYS >= .50 1 MM MM 2
DAYS >= 1.00 0 MM MM 1
GREATEST
24 HR. TOTAL 0.74 12/01 TO 12/02
SNOWFALL (INCHES)
TOTALS 21.7 29.3 -7.6 15.0
SINCE 7/1 21.8
SNOWDEPTH AVG. 3 MM MM 1
DAYS >= 1.0 8 7.1 0.9 5
GREATEST
SNOW DEPTH 9 12/17 6 12/05
12/16 12/04
12/02
24 HR TOTAL 4.8 12/28
DEGREE_DAYS
HEATING TOTAL 1085 1117 -32 895
SINCE 7/1 2290 2587 -297 2321
COOLING TOTAL 0 0 0 0
SINCE 1/1 673 487 186 587
.................................................................
WIND (MPH)
AVERAGE WIND SPEED 10.0
HIGHEST WIND SPEED/DIRECTION 56/180 DATE 12/23
HIGHEST GUST SPEED/DIRECTION 78/190 DATE 12/23
SKY COVER
POSSIBLE SUNSHINE (PERCENT) MM
NUMBER OF DAYS FAIR 1
NUMBER OF DAYS PC 7
NUMBER OF DAYS CLOUDY 23
AVERAGE RH (PERCENT) 74
WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM 0 MIXED PRECIP 1
HEAVY RAIN 1 RAIN 2
LIGHT RAIN 7 FREEZING RAIN 0
LT FREEZING RAIN 5 HAIL 0
HEAVY SNOW 2 SNOW 8
LIGHT SNOW 22 SLEET 2
FOG 23 FOG W/VIS <= 1/4 MILE 1
HAZE 18
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
$$
DECEMBER CLIMATE NARRATIVE...
DECEMBER 2007 ACROSS ALL OF SOUTHWEST LOWER MICHIGAN TEMPERATURES
WHERE ON THE WARM SIDE OF NEAR NORMAL. BOTH TOTAL PRECIPITATION AND
TOTAL SNOWFALL WERE ALSO ON THE HIGHS SIDE OF NORMAL.
WHILE THE TOTAL PRECIPITATION WAS ONLY SLIGHTLY ABOVE NORMAL ACROSS
THE AREA...ONLY FOUR DAYS OF THE MONTH HAD NO PRECIPITATION AT GRAND
RAPIDS. AREAS FROM NEAR AND NORTH OF INTERSTATE 96 HAD SNOW ON THE
GROUND MOST OF THE MONTH. BIG RAPIDS DID HAVE AT LEAST AN INCH OF
SNOW ON THE GROUND THE ENTIRE MONTH.
TEMPERATURES AVERAGE SLIGHTLY WARMER THAN NORMAL. THE FIRST HALF OF
DECEMBER WAS COLDER THAN NORMAL. THEN AROUND THE 19TH...IT TURNED
WARMER THAN NORMAL AND STAYED THAT WAY THE REST OF THE MONTH.
THERE WERE 6 STORMS THAT PUT DOWN AT LEAST 6 INCHES OF SNOW IN PARTS
OF SOUTHWEST LOWER MICHIGAN. OF THOSE 5 EVENTS... THREE OF THE FIVE
PRODUCED MOST OF THEIR SNOW NEAR AND NORTH OF ROUTE 10.
THE FIRST EVENT WAS ON DECEMBER 1ST WITH OVER 6 INCHES OBSERVED
NORTH OF ROUTE 10. THE SECOND STORM WITH MORE THAN 6 INCHES OF
SNOWFALL WAS ON THE 11TH. THAT ONE PRODUCED 6 TO 8 INCHES NEAR ROUTE
10...MOSTLY EAST OF ROUTE 131. THE THIRD BIG STORM OF THE MONTH
STARTED AROUND 7 PM ON THE 15TH AND ENDED BY 5 PM ON THE 16TH. WHILE
THE CENTER OF THE STORM PASSED SOUTH OF LOWER MICHIGAN ALL BUT
THE NORTHWEST SECTIONS OF THE GRAND RAPID COUNTY WARNING AREA HAD
OVER 6 INCHES FROM THAT ONE. AREAS SOUTH OF INTERSTATE 94 HAD
BETWEEN 10 INCHES AND A FOOT. EVENT NUMBER FOUR WAS A LAKE ENHANCED
SNOW EVENT THE DAY BEFORE CHRISTMAS. IT RESULTED IN 6 TO 7 INCHES
MOST OF KENT COUNTY. THE FIFTH STORM OF THE MONTH STARTED
ON THE 28TH AT 10 AM AND ENDED BY MIDNIGHT ON THE 28TH. IT RESULTED
IN 6 TO 8 INCHES OF WET SNOW ACROSS AREAS NEAR AND NORTH OF ROUTE
10. THE LAST EVENT OCCURRED ON NEW YEARS EVE...AND COMPLETED ON NEW
YEARS DAY 2008. THIS STORM CONSISTED OF HEAVY WET SNOW WITH A NARROW
BAND OF HEAVY SNOW FALLING FROM NEAR MARSHALL NORTHEAST TO LANSING
AND POINTS EAST.
$$
MARINO/BEACHLER
