Climatological Report (Monthly)
Issued by NWS

Home | Current Version | Previous Version | Text Only | Print | Product List | Glossary On
Versions: 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45
442
CXUS53 KGRR 011552 AAA
CLMMKG

CLIMATE REPORT...UPDATED
NATIONAL WEATHER SERVICE GRAND RAPIDS, MI
1045 AM EDT TUE MAY 1 2018

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

...THE MUSKEGON MI CLIMATE SUMMARY FOR THE MONTH OF APRIL 2018...

CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1896 TO 2018

WEATHER         OBSERVED          NORMAL  DEPART  LAST YEAR`S
                 VALUE   DATE(S)  VALUE   FROM    VALUE  DATE(S)
                                          NORMAL
................................................................
TEMPERATURE (F)
RECORD
 HIGH              86   04/29/1970
 LOW                1   04/07/1982
HIGHEST            75   04/23        76      -1       80  04/26
LOWEST             14   04/08        20      -6       27  04/08
                                                          04/01
AVG. MAXIMUM     46.8              55.9    -9.1     60.5
AVG. MINIMUM     29.9              37.3    -7.4     41.2
MEAN             38.3              46.6    -8.3     50.8
DAYS MAX >= 90      0               0.0     0.0        0
DAYS MAX <= 32      1               0.3     0.7        0
DAYS MIN <= 32     21               8.6    12.4        6
DAYS MIN <= 0       0               0.0     0.0        0

PRECIPITATION (INCHES)
RECORD
 MAXIMUM         8.05   1909
 MINIMUM         0.10   1936
TOTALS           3.11              2.91    0.20     4.67
DAILY AVG.       0.10              0.10    0.00     0.16
DAYS >= .01        11              12.1    -1.1       17
DAYS >= .10         7               6.7     0.3       10
DAYS >= .50         2               1.7     0.3        3
DAYS >= 1.00        1               0.4     0.6        1
GREATEST
 24 HR. TOTAL    1.16   04/15 TO 04/15

SNOWFALL (INCHES)
RECORDS
 TOTAL           20.4   1982
 24 HR TOTAL     12.2   04/05/1982 TO 04/05/1982
 SNOW DEPTH        13   04/06/1982
TOTALS            7.5               2.3     5.2      0.0
SINCE 7/1       105.3              93.7    11.6     49.0
SNOWDEPTH AVG.      1                MM      MM        0
DAYS >= TRACE      11               1.7     9.3        0
DAYS >= 1.0         3               0.5     2.5        0
GREATEST
 SNOW DEPTH         4   04/19                          0  MM
 24 HR TOTAL      2.8   04/04 TO 04/04

DEGREE_DAYS
HEATING TOTAL     794               556     238      423
 SINCE 7/1       6263              6218      45     5192
COOLING TOTAL       0                 4      -4        5
 SINCE 1/1          0                 4      -4        5

FREEZE DATES
RECORD
 EARLIEST     09/22/1976
 LATEST       06/22/1992
EARLIEST                        10/14
LATEST                          05/04
.................................................................

WIND (MPH)
AVERAGE WIND SPEED              9.9
RESULTANT WIND SPEED/DIRECTION   3/322
HIGHEST WIND SPEED/DIRECTION    36/080    DATE  04/14
HIGHEST GUST SPEED/DIRECTION    53/090    DATE  04/14

SKY COVER
POSSIBLE SUNSHINE (PERCENT)   MM
AVERAGE SKY COVER           0.60
NUMBER OF DAYS FAIR            7
NUMBER OF DAYS PC             10
NUMBER OF DAYS CLOUDY         13

AVERAGE RH (PERCENT)     62

WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM              2     MIXED PRECIP               0
HEAVY RAIN                1     RAIN                       3
LIGHT RAIN               10     FREEZING RAIN              2
LT FREEZING RAIN          2     HAIL                       0
HEAVY SNOW                1     SNOW                       2
LIGHT SNOW               10     SLEET                      1
FOG                      12     FOG W/VIS <= 1/4 MILE      0
HAZE                      2

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

&&

APRIL 2018 WAS COLDER THAN NORMAL, WITH NEAR NORMAL PRECIPITATION,
AND GREATER THAN NORMAL SNOWFALL. MULTIPLE SYSTEMS MOVED THROUGH THE
AREA MAINLY IN THE FIRST HALF OF THE MONTH, WITH MUCH BELOW NORMAL
TEMPERATURE AIR RESULTING IN ABOVE NORMAL SNOW EARLY IN THE MONTH
AND SIGNIFICANT ICING IN MID MONTH. SOME SMALL HAIL AND SLEET ALSO
FELL DURING THE MONTH, BUT NO SEVERE WEATHER OCCURRED.

AVERAGE TEMPERATURES ACROSS SOUTHWEST LOWER MICHIGAN GENERALLY
RANGED FROM 35 TO 40 DEGREES IN APRIL. THIS IS 6 TO 10 DEGREES BELOW
NORMAL. THE AVERAGE TEMPERATURE FOR APRIL IN GRAND RAPIDS WAS THE
FOURTH COLDEST ON RECORD AT 40.1 DEGREES. LANSING AT 40.3 DEGREES
WAS TIED FOR THE 8TH COLDEST ON RECORD AND MUSKEGON AT 38.3 DEGREES
WAS THE 3RD COLDEST ON RECORD.

MEANWHILE, PRECIPITATION TOTALS RANGED FROM 2 1/2 INCHES IN THE FAR
SOUTHWEST OF LOWER MICHIGAN TO ALMOST 5 INCHES IN CENTRAL LOWER
MICHIGAN. THESE VALUES ARE LESS THAN AN INCH FROM WHAT IS NORMAL.

SNOWFALL ACCUMULATIONS RANGED FROM AROUND AN INCH IN THE SOUTH TO 15
INCHES IN CENTRAL LOWER MICHIGAN FOR APRIL 2018. THESE TOTALS RANGED
FROM AROUND NORMAL IN THE SOUTH TO OVER 10 INCHES ABOVE NORMAL IN
CENTRAL LOWER. THE 7.5 INCHES RECORDED IN MUSKEGON WAS ABOUT 5
INCHES ABOVE NORMAL AND WAS THE 3RD MOST ON RECORD. LANSING AND
GRAND RAPIDS FAILED TO BREAK INTO THEIR TOP TENS FOR SNOWFALL.

$$

63



USA.gov is the U.S. government's official web portal to all federal, state and local government web resources and services.