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000
CXUS53 KGRR 011348
CLMLAN


CLIMATE REPORT
NATIONAL WEATHER SERVICE GRAND RAPIDS, MI
846 AM EST TUE JAN 1 2013

...................................

...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
........................................................

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.

$$