Climatological Report (Monthly)
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CXUS53 KGRR 011128
CLMLAN


CLIMATE REPORT
NATIONAL WEATHER SERVICE GRAND RAPIDS, MI
616 AM EST THU JAN 1 2015

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

...THE LANSING MI CLIMATE SUMMARY FOR THE MONTH OF DECEMBER 2014...

CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1864 TO 2014

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            51   12/23        54      -3       59  12/05
                        12/15                             12/04
LOWEST             12   12/02        -2      14       -1  12/16
AVG. MAXIMUM     37.1              34.3     2.8     30.2
AVG. MINIMUM     26.1              22.3     3.8     18.2
MEAN             31.6              28.3     3.3     24.2
DAYS MAX >= 90      0               0.0     0.0        0
DAYS MAX <= 32      8              12.8    -4.8       20
DAYS MIN <= 32     22              25.4    -3.4       29
DAYS MIN <= 0       0               1.0    -1.0        1

PRECIPITATION (INCHES)
RECORD
 MAXIMUM         6.91   1895
 MINIMUM         0.37   1967
TOTALS           1.56              1.87   -0.31     1.87
DAILY AVG.       0.05              0.06   -0.01     0.06
DAYS >= .01        11              13.9    -2.9       18
DAYS >= .10         3               5.6    -2.6        4
DAYS >= .50         1               0.7     0.3        1
DAYS >= 1.00        0               0.0     0.0        0
GREATEST
 24 HR. TOTAL    0.99   12/24 TO 12/24

SNOWFALL (INCHES)
RECORDS
 TOTAL           33.5   2000
 24 HR TOTAL     15.1   12/10/1970 TO 12/11/1970
 SNOW DEPTH        20   12/25/1951
TOTALS            1.5              13.0   -11.5     15.8
SINCE 7/1         7.7              16.8    -9.1     16.5
SNOWDEPTH AVG.      0                 2      -2        3
DAYS >= TRACE      13              10.8     2.2       21
DAYS >= 1.0         0               4.2    -4.2        6
GREATEST
 SNOW DEPTH         T   MM                             8  12/19
                                                          12/18
 24 HR TOTAL      0.7   12/08 TO 12/08

DEGREE_DAYS
HEATING TOTAL    1029              1138    -109     1217
 SINCE 7/1       2625              2552      73     2663
COOLING TOTAL       0                 0       0        0
 SINCE 1/1        488               625    -137      661

FREEZE DATES
RECORD
 EARLIEST     08/03/1894
 LATEST       07/15/1863
EARLIEST                        10/01
LATEST                          05/10
.....................................................

WIND (MPH)
AVERAGE WIND SPEED              9.0
RESULTANT WIND SPEED/DIRECTION   4/256
HIGHEST WIND SPEED/DIRECTION    31/250    DATE  12/27
HIGHEST GUST SPEED/DIRECTION    38/260    DATE  12/27

SKY COVER
POSSIBLE SUNSHINE (PERCENT)   MM
AVERAGE SKY COVER           0.70
NUMBER OF DAYS FAIR            4
NUMBER OF DAYS PC             12
NUMBER OF DAYS CLOUDY         15

AVERAGE RH (PERCENT)     77

WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM              0     MIXED PRECIP               0
HEAVY RAIN                1     RAIN                       2
LIGHT RAIN                8     FREEZING RAIN              0
LT FREEZING RAIN          2     HAIL                       0
HEAVY SNOW                0     SNOW                       1
LIGHT SNOW               13     SLEET                      0
FOG                      22     FOG W/VIS <= 1/4 MILE      0
HAZE                      9

-  INDICATES NEGATIVE NUMBERS.
R  INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T  INDICATES TRACE AMOUNT.

$$

EBW





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