Climatological Report (Seasonal)
Issued by NWS

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CXUS53 KGRR 021540
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TTAA00 KGRR 011855


CLIMATE REPORT
NATIONAL WEATHER SERVICE GRAND RAPIDS, MI
1040 AM EST SAT DEC 2 2017

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

...THE LANSING MI CLIMATE SUMMARY FOR THE SEASON, FROM
9/1/2017 TO 11/30/2017...

CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1864 TO 2017

WEATHER         OBSERVED          NORMAL  DEPART  LAST YEAR`S
                 VALUE   DATE(S)  VALUE   FROM    VALUE  DATE(S)
                                          NORMAL
................................................................
TEMPERATURE (F)
RECORD
 HIGH              99   09/02/1894
 LOW               -5   11/26/1949
HIGHEST            95   09/21        88       7       90  09/06
LOWEST             15   11/10        14       1       20  11/22
AVG. MAXIMUM     63.0              59.8     3.2     64.8
AVG. MINIMUM     42.7              41.4     1.3     45.6
MEAN             52.8              50.6     2.2     55.2
DAYS MAX >= 90      6               0.3     5.7        1
DAYS MAX <= 32      1               2.3    -1.3        1
DAYS MIN <= 32     23              20.8     2.2       12
DAYS MIN <= 0       0               0.0     0.0        0

PRECIPITATION (INCHES)
RECORD
 MAXIMUM        14.98   1990
 MINIMUM         2.05   1956
TOTALS          13.00              8.81    4.19     9.71
DAILY AVG.       0.14              0.10    0.04     0.11
DAYS >= .01        32              34.3    -2.3       28
DAYS >= .10        18              18.0     0.0       20
DAYS >= .50         8               5.7     2.3        7
DAYS >= 1.00        3               1.6     1.4        3
GREATEST
 24 HR. TOTAL    2.89   10/14 TO 10/14

SNOWFALL (INCHES)
RECORDS
 TOTAL           24.0   1869
 24 HR TOTAL     12.5   11/20/1869 TO 11/20/1869
 SNOW DEPTH        14   11/23/1869
                        11/22/1869
TOTALS            0.4               3.8    -3.4        T
SINCE 7/1         0.4               3.8    -3.4        T
SNOWDEPTH AVG.      0                MM      MM        0
DAYS >= TRACE       5               4.0     1.0        4
DAYS >= 1.0         0               1.3    -1.3        0
GREATEST
 SNOW DEPTH         0   MM                             0  MM
 24 HR TOTAL      0.2   11/09 TO 11/09
                        11/19 TO 11/19

DEGREE_DAYS
HEATING TOTAL    1227              1379    -152      972
 SINCE 7/1       1256              1414    -158      975
COOLING TOTAL     148                68      80      103
 SINCE 1/1        782               625     157      869

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

WIND (MPH)
AVERAGE WIND SPEED              8.0
RESULTANT WIND SPEED/DIRECTION   3/218
HIGHEST WIND SPEED/DIRECTION    38/260    DATE  10/07
HIGHEST GUST SPEED/DIRECTION    49/240    DATE  10/07

SKY COVER
POSSIBLE SUNSHINE (PERCENT)   MM
AVERAGE SKY COVER           0.40
NUMBER OF DAYS FAIR           41
NUMBER OF DAYS PC             25
NUMBER OF DAYS CLOUDY         25

AVERAGE RH (PERCENT)     69

WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM              8     MIXED PRECIP               1
HEAVY RAIN               11     RAIN                      15
LIGHT RAIN               46     FREEZING RAIN              0
LT FREEZING RAIN          0     HAIL                       0
HEAVY SNOW                0     SNOW                       0
LIGHT SNOW                5     SLEET                      2
FOG                      55     FOG W/VIS <= 1/4 MILE      3
HAZE                     12

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

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