Climatological Report (Monthly)
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CXUS53 KGRR 012328 CCA
CLMMKG

CLIMATE REPORT...WITH NARRATIVE
NATIONAL WEATHER SERVICE GRAND RAPIDS, MI
625 PM EST WED FEB 1 2017

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

...THE MUSKEGON MI CLIMATE SUMMARY FOR THE MONTH OF JANUARY 2017...

CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1896 TO 2017

WEATHER         OBSERVED          NORMAL  DEPART  LAST YEAR`S
                 VALUE   DATE(S)  VALUE   FROM    VALUE  DATE(S)
                                          NORMAL
................................................................
TEMPERATURE (F)
RECORD
 HIGH              63   01/25/1950
 LOW              -21   01/12/1912
HIGHEST            62   01/21        47      15       46  01/31
LOWEST              9   01/06                10        2  01/19
                        01/05
AVG. MAXIMUM     35.0              30.8     4.2     32.6
AVG. MINIMUM     24.8              20.1     4.7     21.5
MEAN             29.9              25.4     4.5     27.1
DAYS MAX >= 90      0               0.0     0.0        0
DAYS MAX <= 32     11              16.5    -5.5       13
DAYS MIN <= 32     21              26.9    -5.9       28
DAYS MIN <= 0       0               0.9    -0.9        0

PRECIPITATION (INCHES)
RECORD
 MAXIMUM         7.72   1897
 MINIMUM         0.29   1934
TOTALS           3.03              2.03    1.00     2.46
DAILY AVG.       0.10              0.07    0.03     0.08
DAYS >= .01        20              15.7     4.3       18
DAYS >= .10         8               6.2     1.8       10
DAYS >= .50         1               0.7     0.3        0
DAYS >= 1.00        0               0.0     0.0        0
GREATEST
 24 HR. TOTAL    1.17   01/16 TO 01/17

SNOWFALL (INCHES)
RECORDS
 TOTAL          102.4   1982
 24 HR TOTAL     22.0   01/10/1982 TO 01/10/1982
 SNOW DEPTH        33   01/16/1979
TOTALS           17.4              28.0   -10.6     37.2
SINCE 7/1        38.8              63.1   -24.3     46.0
SNOWDEPTH AVG.      1                 6      -5        8
DAYS >= TRACE      18              15.1     2.9       21
DAYS >= 1.0        10               8.2     1.8       10
GREATEST
 SNOW DEPTH         6   01/10                         14  01/22
                                                          01/21
 24 HR TOTAL      2.6   01/29 TO 01/29

DEGREE_DAYS
HEATING TOTAL    1078              1226    -148     1167
 SINCE 7/1       3043              3672    -629     3007
COOLING TOTAL       0                 0       0        0
 SINCE 1/1          0                 0       0        0

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

WIND (MPH)
AVERAGE WIND SPEED              9.2
RESULTANT WIND SPEED/DIRECTION   3/280
HIGHEST WIND SPEED/DIRECTION    39/210    DATE  01/10
HIGHEST GUST SPEED/DIRECTION    54/180    DATE  01/10

SKY COVER
POSSIBLE SUNSHINE (PERCENT)   MM
AVERAGE SKY COVER           0.90
NUMBER OF DAYS FAIR            1
NUMBER OF DAYS PC              3
NUMBER OF DAYS CLOUDY         27

AVERAGE RH (PERCENT)     78

WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM              0     MIXED PRECIP               0
HEAVY RAIN                1     RAIN                       4
LIGHT RAIN               10     FREEZING RAIN              0
LT FREEZING RAIN          1     HAIL                       0
HEAVY SNOW                1     SNOW                       5
LIGHT SNOW               18     SLEET                      1
FOG                      25     FOG W/VIS <= 1/4 MILE      4
HAZE                     10

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

&&

JANUARY 2017 FEATURED WELL ABOVE NORMAL TEMPERATURES, BELOW NORMAL
SNOWFALL, AND ABOVE NORMAL PRECIPITATION THAT OFTEN CAME IN THE FORM
OF RAIN. SOME PERIODS OF WINTRY MIX WERE ALSO NOTED.

A BRIEF BOUT OF WINTER WAS FEATURED FROM THE 4TH THROUGH THE 9TH
WITH GENERALLY LIGHT LAKE EFFECT SNOW AS WELL AS WET SNOW ASSOCIATED
WITH A WARM PUSH OF AIR INTO THE REGION. FAIRLY SIGNIFICANT RAINFALL
FOLLOWED THIS SNOW AND THAT PUSHED RIVERS HIGHER ACROSS THE AREA.
THIS HELPED BREAK UP ICE ON THE RIVERS AND LED TO SOME MINOR ICE
JAMS ON THE GRAND RIVER. IN ADDITION, AS THE WARM AIR SURGED IN ON
THE 10TH, VERY STRONG WIND GUSTS WERE REPORTED ACROSS THE REGION.
MOST GUSTS WERE IN THE 35 TO 55 MPH RANGE. THUNDERSTORMS WERE
REPORTED ACROSS SOUTHERN LOWER MICHIGAN ON THE 11TH.

ANOTHER ROUND OF SIGNIFICANT RAINFALL STRUCK THE REGION DURING THE
MIDDLE OF THE MONTH, PRODUCING A HALF INCH TO ONE INCH IN GENERAL.
THIS LED TO HIGH RIVER LEVELS, BUT NO SIGNIFICANT FLOODING.
THUNDERSTORMS WERE REPORTED ONCE AGAIN ACROSS SOUTHERN LOWER
MICHIGAN ON THE 17TH. A DRAMATIC WARM UP OCCURRED ON THE 21ST, WITH
SOME LOCATIONS BREAKING OUT INTO THE 60S, LEADING TO ONE OF THE
WARMEST JANUARY DAYS IN YEARS.

A CLIPPER SYSTEM PRODUCED GENERALLY 2" TO 5" OF SNOW ACROSS CENTRAL
AND SOUTHERN LOWER MICHIGAN ON THE 30TH AND 31ST. WHILE THIS WOULD
NORMALLY BE A COMMON OCCURRENCE IN JANUARY, IT ENDED UP BEING THE
EXCEPTION TO THE RULE.

TEMPERATURES AVERAGED WELL ABOVE NORMAL, WITH MOST LOCATIONS AROUND
5 DEGREES ABOVE THE TYPICAL MONTHLY AVERAGE TEMPERATURES. WHILE NOT
TOP TEN WARMTH, IT WAS CLOSE FOR GRAND RAPIDS, LANSING, AND
MUSKEGON. IRONICALLY, THIS JANUARY WAS MUCH WARMER THAN JANUARY 2016
DURING THE STRONG EL NINO PATTERN.

$$

CAS/HOVING


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