477
CXUS53 KGRR 011700
CLMGRR

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

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

...THE GRAND RAPIDS CLIMATE SUMMARY FOR THE MONTH OF DECEMBER 2024...

CLIMATE NORMAL PERIOD: 1991 TO 2020
CLIMATE RECORD PERIOD: 1892 TO 2024

WEATHER         OBSERVED          NORMAL  DEPART   LAST YEAR`S
                VALUE   DATE(S)   VALUE   FROM     VALUE DATE(S)
                                          NORMAL
................................................................
TEMPERATURE (F)
RECORD
 HIGH             69   12/05/2001
 LOW             -18   12/19/1983
HIGHEST           52   12/28         53      -1       58  12/09
LOWEST             9   12/21          1       8       22  12/13
AVG. MAXIMUM    36.5               36.1     0.4     43.5
AVG. MINIMUM    26.2               24.7     1.5     33.2
MEAN            31.3               30.4     0.9     38.3
DAYS MAX >= 90     0                0.0     0.0        0
DAYS MAX <= 32    12               11.5     0.5        1
DAYS MIN <= 32    22               26.2    -4.2       14
DAYS MIN <= 0      0                0.5    -0.5        0

PRECIPITATION (INCHES)
RECORD
 MAXIMUM        6.95   1893
 MINIMUM        0.31   1913
TOTALS          3.08               2.48    0.60     1.89
DAILY AVG.      0.10               0.08    0.02     0.06
DAYS >= .01       21               15.5     5.5       17
DAYS >= .10       11                7.0     4.0        6
DAYS >= .50        1                1.0     0.0        0
DAYS >= 1.00       1                0.3     0.7        0
GREATEST
 24 HR. TOTAL   1.04   12/29 TO 12/30

SNOWFALL (INCHES)
RECORDS
 TOTAL          59.2   2000
 SNOW DEPTH       22   12/27/1951
                       12/26/1951
                       12/25/1951
TOTALS          19.7               20.8    -1.1      1.3
SINCE 7/1       31.0               28.2     2.8      3.2
SNOWDEPTH AVG.     1                                  -1
DAYS >= TRACE     19               11.9     7.1       10
DAYS >= 1.0        6                6.1    -0.1        1
GREATEST
 SNOW DEPTH        5   12/20                           T  12/18
                                                          12/06
                                                          12/19

DEGREE DAYS
HEATING TOTAL   1036               1072     -36      819
 SINCE 7/1      2024               2387    -363       MM
COOLING TOTAL      0                  0       0        0
 SINCE 1/1       766                733      33       MM

FREEZE DATES
RECORD
 EARLIEST     09/03/1946
 LATEST       06/04/1945
EARLIEST                        10/27
LATEST                          04/25
................................................................

WIND (MPH)
AVERAGE WIND SPEED              10.0
RESULTANT WIND SPEED/DIRECTION   3/240
HIGHEST WIND SPEED/DIRECTION    37/300    DATE  12/04
HIGHEST GUST SPEED/DIRECTION    49/300    DATE  12/04

SKY COVER
POSSIBLE SUNSHINE (PERCENT)   17
AVERAGE SKY COVER           0.87
NUMBER OF DAYS FAIR            0
NUMBER OF DAYS PC              6
NUMBER OF DAYS CLOUDY         25

AVERAGE RH (PERCENT)     80

WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM              1     MIXED PRECIP               1
HEAVY RAIN                1     RAIN                       5
LIGHT RAIN               13     FREEZING RAIN              1
LT FREEZING RAIN          5     HAIL                       0
HEAVY SNOW                3     SNOW                       4
LIGHT SNOW               19     SLEET                      0
FOG                      25     FOG W/VIS <= 1/4 MILE      5
HAZE                      0

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

$$