000
CXUS53 KGRR 012145
CLMLAN

CLIMATE REPORT
NATIONAL WEATHER SERVICE GRAND RAPIDS, MI
407 PM EST FRI MAR 1 2013

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

...THE LANSING MI CLIMATE SUMMARY FOR THE MONTH OF FEBRUARY 2013...

CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1864 TO 2013

WEATHER         OBSERVED          NORMAL  DEPART  LAST YEAR`S
                 VALUE   DATE(S)  VALUE   FROM    VALUE  DATE(S)
                                          NORMAL
................................................................
TEMPERATURE (F)
RECORD
 HIGH              69   02/11/1999
 LOW              -37   02/02/1868
HIGHEST            46   02/18        51      -5       53  02/29
LOWEST              0   02/09        -6       6        2  02/11
AVG. MAXIMUM     31.9              33.3    -1.4     37.7
AVG. MINIMUM     17.5              18.5    -1.0     23.4
MEAN             24.7              25.9    -1.2     30.5
DAYS MAX >= 90      0               0.0     0.0        0
DAYS MAX <= 32     15              12.9     2.1        6
DAYS MIN <= 32     28              24.7     3.3       27
DAYS MIN <= 0       1               2.1    -1.1        0

PRECIPITATION (INCHES)
RECORD
 MAXIMUM         7.46   1938
 MINIMUM         0.22   1969
TOTALS           1.78              1.47    0.31     1.59
DAILY AVG.       0.06              0.05    0.01     0.05
DAYS >= .01        17              10.6     6.4       10
DAYS >= .10         6               4.0     2.0        5
DAYS >= .50         0               0.6    -0.6        1
DAYS >= 1.00        0               0.1    -0.1        0
GREATEST
 24 HR. TOTAL    0.54   02/26 TO 02/27           02/29 TO 02/29
                                                          02/24 TO 02/24
                                                          02/24 TO 02/24

SNOWFALL (INCHES)
RECORDS
 TOTAL           29.1   2011
 24 HR TOTAL     13.0   02/28/1900 TO 02/28/1900
 SNOW DEPTH        23   02/07/1978
                        02/06/1978
                        02/05/1978
TOTALS           14.1              11.6     2.5     12.1
SINCE 7/1        24.5              42.2   -17.7     38.7
SNOWDEPTH AVG.      2                 4      -2        1
DAYS >= TRACE      23               9.8    13.2       14
DAYS >= 1.0         6               3.4     2.6        2
GREATEST
 SNOW DEPTH         5   02/27                          5  02/25
                        02/08
 24 HR TOTAL      2.4   MM                       02/24 TO 02/24
                                                          02/24 TO 02/24
                                                          02/24 TO 02/24

DEGREE_DAYS
HEATING TOTAL    1121              1095      26      993
 SINCE 7/1       4678              4935    -257     4356
COOLING TOTAL       0                 0       0        0
 SINCE 1/1          0                 0       0        0

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

WIND (MPH)
AVERAGE WIND SPEED              9.9
RESULTANT WIND SPEED/DIRECTION   3/245
HIGHEST WIND SPEED/DIRECTION    36/230    DATE  02/11
HIGHEST GUST SPEED/DIRECTION    48/230    DATE  02/11

SKY COVER
POSSIBLE SUNSHINE (PERCENT)   MM
AVERAGE SKY COVER           0.70
NUMBER OF DAYS FAIR            3
NUMBER OF DAYS PC              8
NUMBER OF DAYS CLOUDY         17

AVERAGE RH (PERCENT)     73

WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM              0     MIXED PRECIP               0
HEAVY RAIN                0     RAIN                       1
LIGHT RAIN                6     FREEZING RAIN              1
LT FREEZING RAIN          5     HAIL                       0
HEAVY SNOW                1     SNOW                       3
LIGHT SNOW               22     SLEET                      1
FOG                      21     FOG W/VIS <= 1/4 MILE      1
HAZE                     16

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

&&

FEBRUARY WAS BOTH COOLER AND WETTER THAN NORMAL FOR SOUTHWEST LOWER
MICHIGAN. THE TWO MOST SIGNIFICANT SNOWSTORMS OCCURRED AT OPPOSITE
ENDS OF THE MONTH.

THE AVERAGE MONTHLY TEMPERATURE FOR FEBRUARY WAS AROUND 24
DEGREES... WHICH IS APPROXIMATELY 2 DEGREES BELOW NORMAL FOR MOST
LOCATIONS. THE FIRST WEEK OF FEBRUARY IN PARTICULAR WAS MUCH COLDER
THAN NORMAL... WITH THE FIRST THREE DAYS OF THE MONTH ALL
EXPERIENCING NEGATIVE DOUBLE DIGIT DEPARTURES FROM NORMAL. THE 7TH
OF THE MONTH WAS THE FIRST DAY TO RECORD A DAILY AVERAGE TEMPERATURE
ABOVE NORMAL. THE SECOND WEEK OF FEBRUARY WAS ACTUALLY WARMER THAN
NORMAL. A DYNAMIC WEATHER PATTERN CONTINUED TO CONTRIBUTE TO
FLUCTUATING BACK AND FORTH BETWEEN COOLER AND WARMER THAN NORMAL
TEMPERATURES WITH EACH LOW PRESSURE SYSTEM.

MANY LOCATIONS RECEIVED ABOVE NORMAL PRECIPITATION FOR FEBRUARY...
WITH A FEW LOCATIONS NEAR NORMAL. THERE WERE NO MORE THAN FIVE
CALENDAR DAYS IN WHICH NO PRECIPITATION FELL. HOWEVER... A LARGE
PORTION OF THE PRECIPITATION IN FEBRUARY FELL DURING THE FIRST
AND LAST WEEKS OF THE MONTH... WITH OFF AND ON LIGHTER PRECIPITATION
DURING THE MIDDLE PORTION OF THE MONTH.

SNOWFALL FOR SOUTHWEST LOWER MICHIGAN WAS ALSO ABOVE NORMAL FOR
FEBRUARY. MONTHLY SNOWFALL DEPARTURES FROM NORMAL TENDED TO DECREASE
WITH INCREASING DISTANCE FROM LAKE MICHIGAN... WHICH IS TYPICAL.
HOWEVER... LANSING STILL RECEIVED ABOVE NORMAL SNOWFALL. MUSKEGON
SET A RECORD FOR MONTHLY MAXIMUM SNOWFALL. MUSKEGON RECEIVED 53.2
INCHES OF SNOW IN FEBRUARY... WHICH BREAKS THE PREVIOUS FEBRUARY
RECORD OF 45.8 INCHES SET IN 1981. A GROUNDHOG DAY STORM PROVIDED
SIGNIFICANT SNOWFALL TOTALS AT THE BEGINNING OF THE MONTH. ON THE
26TH AND 27TH... SOUTHWEST LOWER MICHIGAN RECEIVED A MIX OF RAIN AND
SLEET AS PRECIPITATION MOVED IN FROM SOUTH TO NORTH. IT EVENTUALLY
CHANGED OVER TO ALL SNOW AND PROVIDED 3 TO 7 INCHES AT THE END OF
THE MONTH.

&&

JAM
EBW