Climatological Report (Monthly) Issued by NWS
000
CXUS53 KGRR 011348
CLMLAN
CLIMATE REPORT
NATIONAL WEATHER SERVICE GRAND RAPIDS, MI
846 AM EST TUE JAN 1 2013
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...THE LANSING MI CLIMATE SUMMARY FOR THE MONTH OF DECEMBER 2012...
CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1864 TO 2012
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 63 12/04 54 9 55 12/15
12/03
LOWEST 12 12/28 -2 14 13 12/10
AVG. MAXIMUM 40.1 34.3 5.8 38.5
AVG. MINIMUM 26.8 22.3 4.5 27.5
MEAN 33.5 28.3 5.2 33.0
DAYS MAX >= 90 0 0.0 0.0 0
DAYS MAX <= 32 8 12.8 -4.8 7
DAYS MIN <= 32 23 25.4 -2.4 24
DAYS MIN <= 0 0 1.0 -1.0 0
PRECIPITATION (INCHES)
RECORD
MAXIMUM 6.91 1895
MINIMUM 0.37 1967
TOTALS 1.98 1.87 0.11 2.22
DAILY AVG. 0.06 0.06 0.00 0.07
DAYS >= .01 16 13.9 2.1 13
DAYS >= .10 8 5.6 2.4 6
DAYS >= .50 1 0.7 0.3 1
DAYS >= 1.00 0 0.0 0.0 0
GREATEST
24 HR. TOTAL 0.63 12/20 TO 12/21 12/14 TO 12/15
12/27 TO 12/27
12/27 TO 12/27
SNOWFALL (INCHES)
RECORDS
TOTAL 31.9 2000
24 HR TOTAL 15.1 12/10/1970 TO 12/11/1970
SNOW DEPTH 20 12/25/1951
TOTALS 4.0 13.0 -9.0 3.7
LIQUID EQUIV 0.40 1.30 -0.90 MM
SINCE 7/1 4.5 16.8 -12.3 11.9
LIQUID 7/1 0.45 1.70 -1.25 0.82
SNOWDEPTH AVG. 1 2 -1 1
DAYS >= TRACE 14 10.8 3.2 13
DAYS >= 1.0 1 4.2 -3.2 2
GREATEST
SNOW DEPTH 3 12/31 9 12/02
12/30
12/29
24 HR TOTAL 2.0 12/21 TO 12/21 12/27 TO 12/27
12/27 TO 12/27
12/27 TO 12/27
DEGREE_DAYS
HEATING TOTAL 969 1138 -169 983
SINCE 7/1 2376 2552 -176 2239
COOLING TOTAL 0 0 0 0
SINCE 1/1 940 625 315 767
FREEZE DATES
RECORD
EARLIEST 08/03/1894
LATEST 07/15/1863
EARLIEST 12/05 10/01
LATEST 05/10
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WIND (MPH)
AVERAGE WIND SPEED 8.4
RESULTANT WIND SPEED/DIRECTION 2/241
HIGHEST WIND SPEED/DIRECTION 31/120 DATE 12/20
HIGHEST GUST SPEED/DIRECTION 41/330 DATE 12/21
SKY COVER
POSSIBLE SUNSHINE (PERCENT) MM
AVERAGE SKY COVER 0.80
NUMBER OF DAYS FAIR 1
NUMBER OF DAYS PC 6
NUMBER OF DAYS CLOUDY 24
AVERAGE RH (PERCENT) 76
WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM 0 MIXED PRECIP 2
HEAVY RAIN 1 RAIN 1
LIGHT RAIN 14 FREEZING RAIN 0
LT FREEZING RAIN 2 HAIL 0
HEAVY SNOW 0 SNOW 5
LIGHT SNOW 13 SLEET 1
FOG 23 FOG W/VIS <= 1/4 MILE 1
HAZE 14
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
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