209
CXUS53 KGRR 011700
CLMLAN

CLIMATE REPORT
NATIONAL WEATHER SERVICE GRAND RAPIDS, MICHIGAN
1200 PM EST WED JAN 01 2025

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

...THE LANSING CLIMATE SUMMARY FOR THE MONTH OF DECEMBER 2024...

CLIMATE NORMAL PERIOD: 1991 TO 2020
CLIMATE RECORD PERIOD: 1864 TO 2024

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           52   12/28         54      -2       59  12/09
LOWEST             1   12/22         -2       3       23  12/13
AVG. MAXIMUM    36.2               35.7     0.5     43.4
AVG. MINIMUM    24.8               23.3     1.5     33.2
MEAN            30.5               29.5     1.0     38.3
DAYS MAX >= 90     0                0.0     0.0        0
DAYS MAX <= 32    10               12.1    -2.1        1
DAYS MIN <= 32    21               26.5    -5.5       15
DAYS MIN <= 0      0                1.0    -1.0        0

PRECIPITATION (INCHES)
RECORD
 MAXIMUM        6.91   1895
 MINIMUM        0.37   1967
TOTALS          2.78               1.90    0.88     2.20
DAILY AVG.      0.09               0.06    0.03     0.07
DAYS >= .01       16               13.5     2.5       16
DAYS >= .10        8                5.3     2.7        7
DAYS >= .50        1                0.9     0.1        1
DAYS >= 1.00       1                0.1     0.9        0
GREATEST
 24 HR. TOTAL   1.31   12/29 TO 12/30

SNOWFALL (INCHES)
RECORDS
 TOTAL          33.5   2000
 SNOW DEPTH       20   12/25/1951
TOTALS          10.7               11.3    -0.6      2.5
SINCE 7/1       13.1               15.4    -2.3       MM
SNOWDEPTH AVG.     1                                   0
DAYS >= TRACE     13                9.4     3.6        8
DAYS >= 1.0        4                3.5     0.5        1
GREATEST
 SNOW DEPTH        5   12/20                           1  12/19

DEGREE DAYS
HEATING TOTAL   1060               1100     -40      820
 SINCE 7/1      2097               2482    -385       MM
COOLING TOTAL      0                  0       0        0
 SINCE 1/1       723                657      66       MM

FREEZE DATES
RECORD
 EARLIEST     08/03/1894
 LATEST       07/15/1863
EARLIEST                        10/27
LATEST                          04/25
................................................................

WIND (MPH)
AVERAGE WIND SPEED              9.5
RESULTANT WIND SPEED/DIRECTION   4/230
HIGHEST WIND SPEED/DIRECTION    30/290    DATE  12/05
HIGHEST GUST SPEED/DIRECTION    42/300    DATE  12/05

SKY COVER
POSSIBLE SUNSHINE (PERCENT)   MM
AVERAGE SKY COVER           0.77
NUMBER OF DAYS FAIR            2
NUMBER OF DAYS PC              9
NUMBER OF DAYS CLOUDY         20

AVERAGE RH (PERCENT)     80

WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM              0     MIXED PRECIP               0
HEAVY RAIN                1     RAIN                       3
LIGHT RAIN                8     FREEZING RAIN              0
LT FREEZING RAIN          2     HAIL                       1
HEAVY SNOW                1     SNOW                       3
LIGHT SNOW               14     SLEET                      1
FOG                      19     FOG W/VIS <= 1/4 MILE      1
HAZE                      6

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

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