Climatological Report (Monthly)
Issued by NWS Grand Rapids, MI

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477
CXUS53 KGRR 301559
CLMGRR

CLIMATE REPORT
NATIONAL WEATHER SERVICE GRAND RAPIDS, MI
206 PM EDT SAT JUL 1 2017...CORRECTED TO INCLUDE CLM SUMMARY

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

...THE GRAND RAPIDS MI (ASOS) CLIMATE SUMMARY FOR THE MONTH OF JUNE 2017...

CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1892 TO 2017

WEATHER         OBSERVED          NORMAL  DEPART  LAST YEAR`S
                 VALUE   DATE(S)  VALUE   FROM    VALUE  DATE(S)
                                          NORMAL
................................................................
TEMPERATURE (F)
RECORD
 HIGH             102   06/20/1953
                        06/01/1934
 LOW               32   06/04/1945
HIGHEST            93   06/12        91       2       93  06/18
LOWEST             46   06/02        41       5       45  06/09
AVG. MAXIMUM     80.4              79.0     1.4     82.3
AVG. MINIMUM     58.5              57.7     0.8     58.4
MEAN             69.5              68.4     1.1     70.3
DAYS MAX >= 90      4               2.0     2.0        6
DAYS MAX <= 32      0               0.0     0.0        0
DAYS MIN <= 32      0               0.0     0.0        0
DAYS MIN <= 0       0               0.0     0.0        0

PRECIPITATION (INCHES)
RECORD
 MAXIMUM        13.22   1892
 MINIMUM         0.25   1988
TOTALS           4.88              3.77    1.11     1.15
DAILY AVG.       0.16              0.13    0.03     0.04
DAYS >= .01        11              10.1     0.9        8
DAYS >= .10        10               6.0     4.0        4
DAYS >= .50         3               2.5     0.5        0
DAYS >= 1.00        1               1.1    -0.1        0
GREATEST
 24 HR. TOTAL    1.68   06/17 TO 06/17

SNOWFALL (INCHES)
RECORDS
 TOTAL              T   2002
 24 HR TOTAL        T   MM
 SNOW DEPTH        MM   MM
TOTALS            0.0               0.0     0.0      0.0
SINCE 7/1        60.1              74.9   -14.8     61.1
SNOWDEPTH AVG.      0                MM      MM        0
DAYS >= TRACE       0               0.0     0.0        0
DAYS >= 1.0         0               0.0     0.0        0
GREATEST
 SNOW DEPTH         0   MM                             0  MM
 24 HR TOTAL      0.0   06/30 TO 06/30

DEGREE_DAYS
HEATING TOTAL      22                45     -23       21
 SINCE 7/1       5635              6485    -850     5617
COOLING TOTAL     162               145      17      190
 SINCE 1/1        192               192       0      261

FREEZE DATES
RECORD
 EARLIEST     09/03/1946
 LATEST       06/04/1945
EARLIEST      03/01             10/13
LATEST        05/09             05/02
.................................................................

WIND (MPH)
AVERAGE WIND SPEED              10.0
RESULTANT WIND SPEED/DIRECTION   6/243
HIGHEST WIND SPEED/DIRECTION    31/180    DATE  06/17
HIGHEST GUST SPEED/DIRECTION    41/180    DATE  06/17

SKY COVER
POSSIBLE SUNSHINE (PERCENT)   69
AVERAGE SKY COVER           0.50
NUMBER OF DAYS FAIR            4
NUMBER OF DAYS PC             22
NUMBER OF DAYS CLOUDY          4

AVERAGE RH (PERCENT)     67

WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM              9     MIXED PRECIP               0
HEAVY RAIN                6     RAIN                       8
LIGHT RAIN               14     FREEZING RAIN              0
LT FREEZING RAIN          0     HAIL                       0
HEAVY SNOW                0     SNOW                       0
LIGHT SNOW                0     SLEET                      0
FOG                      14     FOG W/VIS <= 1/4 MILE      1
HAZE                      1

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

&&

JUNE 2017 TEMPERATURES LARGELY AVERAGED ABOVE NORMAL THROUGH MUCH OF
LOWER MICHIGAN. PRECIPITATION VARIED BETWEEN GREATER THAN NORMAL
RAINFALL OVER CENTRAL LOWER MICHIGAN AND BELOW NORMAL RAINFALL OVER
PORTIONS OF SOUTHERN LOWER MICHIGAN. THUNDERSTORMS HAD LOCALIZED
IMPACTS ON MONTHLY TALLIES, WHICH MAY NOT BE AS ACCURATELY REFLECTED
IN GENERAL GRAPHICS.

MUCH OF LOWER MICHIGAN`S TEMPERATURE DEPARTURES AVERAGED 1-2 DEGREES
ABOVE NORMAL. DEPARTURES WERE AFFECTED BY THE LOCALIZED VARIATIONS
IN EVENT-DRIVEN PRECIPITATION AMOUNTS AND EVENT FREQUENCY. LANSING`S
CAPITAL REGION INTERNATIONAL AIRPORT TIED (1934) ITS 5TH WARMEST
JUNE ON RECORD WITH A MONTHLY TEMPERATURE AVERAGE OF 71.1 DEGREES.
THIS WAS 3.5 DEGREES WARMER THAN NORMAL. THE WARMEST JUNE ON RECORD
OCCURRED IN 2005, WHEN AN AVERAGE OF 72.7 DEGREES WAS RECORDED.

THE HOTTEST PART OF THE MONTH SPANNED A 5 DAY PERIOD FROM JUNE 10TH
THROUGH JUNE 14TH. HIGH TEMPERATURES CONSISTENTLY RANGED FROM THE
UPPER 80S TO MID-90S THROUGH SOUTHWEST MICHIGAN. THUNDERSTORMS
BROUGHT HEAVY RAIN TO THE AREA ON JUNE 17TH WITH AMOUNTS GENERALLY
UP TO 2 INCHES. LOCALIZED AMOUNTS RANGED FROM 3-4 INCHES. A FEW
THUNDERSTORM EVENTS RESULTED IN LOCALIZED WIND DAMAGE WITH NO
WIDESPREAD HAIL OR WIND EVENTS TO RECALL.

THE BIGGEST STORY OF THE MONTH OCCURRED NEAR AND AROUND MT.
PLEASANT, WHERE SEVERAL INCHES OF RAIN FELL ON THE NIGHT OF JUNE
22ND INTO THE EARLY MORNING HOURS OF JUNE 23RD. MANY ROADS WERE
REPORTED WASHED OUT OR CLOSED. SOME RESIDENTIAL AREAS ACCUMULATED
ENOUGH WATER TO REACH THE HOODS OF VEHICLES. LOCAL IMPACTS WERE
GREAT ENOUGH TO REQUIRE SEVERAL DAYS IN RECOVERY EFFORTS.

$$

63/JAM
WRKCLMGRR 000
TTAA00 KGRR 011957


CLIMATE REPORT
NATIONAL WEATHER SERVICE GRAND RAPIDS, MI
349 PM EDT THU JUN 1 2017

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

...THE GRAND RAPIDS MI (ASOS) CLIMATE SUMMARY FOR THE SEASON, FROM
3/1/2017 TO 5/31/2017...

CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1892 TO 2017

WEATHER         OBSERVED          NORMAL  DEPART  LAST YEAR`S
                 VALUE   DATE(S)  VALUE   FROM    VALUE  DATE(S)
                                          NORMAL
................................................................
TEMPERATURE (F)
RECORD
 HIGH              95   05/31/1934
 LOW              -13   03/08/1943
HIGHEST            88   05/16        85       3       88  05/25
LOWEST             12   03/14         6       6        6  03/04
                        03/12
AVG. MAXIMUM     57.7              57.4     0.3     59.1
AVG. MINIMUM     38.6              37.5     1.1     38.9
MEAN             48.2              47.4     0.8     49.0
DAYS MAX >= 90      0               0.3    -0.3        0
DAYS MAX <= 32      8               4.3     3.7        3
DAYS MIN <= 32     24              31.0    -7.0       26
DAYS MIN <= 0       0               0.1    -0.1        0

PRECIPITATION (INCHES)
RECORD
 MAXIMUM        16.37   1976
 MINIMUM         3.72   1936
TOTALS          11.04              9.70    1.34    11.87
DAILY AVG.       0.12              0.11    0.01     0.13
DAYS >= .01        42              35.7     6.3       41
DAYS >= .10        24              20.5     3.5       28
DAYS >= .50         7               5.5     1.5       10
DAYS >= 1.00        2               1.8     0.2        0
GREATEST
 24 HR. TOTAL    1.57   04/29 TO 04/30

SNOWFALL (INCHES)
RECORDS
 TOTAL           41.4   1965
 24 HR TOTAL     13.6   03/02/2002 TO 03/02/2002
 SNOW DEPTH        20   03/02/2014
TOTALS            5.1              10.1    -5.0     19.5
SINCE 7/1        60.1              74.9   -14.8     61.1
SNOWDEPTH AVG.      0                MM      MM        0
DAYS >= TRACE      14               8.5     5.5       19
DAYS >= 1.0         2               2.7    -0.7        4
GREATEST
 SNOW DEPTH         2   03/14                          7  03/02
                        03/13
 24 HR TOTAL      2.5   03/13 TO 03/13

DEGREE_DAYS
HEATING TOTAL    1559              1664    -105     1519
 SINCE 7/1         MM              6440      MM       MM
COOLING TOTAL      30                46     -16       71
 SINCE 1/1         30                47     -17       71

FREEZE DATES
RECORD
 EARLIEST     09/03/1946
 LATEST       06/04/1945
EARLIEST                        10/13
LATEST                          05/02
.................................................................

WIND (MPH)
AVERAGE WIND SPEED              11.1
RESULTANT WIND SPEED/DIRECTION   2/263
HIGHEST WIND SPEED/DIRECTION    51/250    DATE  03/08
HIGHEST GUST SPEED/DIRECTION    64/240    DATE  03/08

SKY COVER
POSSIBLE SUNSHINE (PERCENT)   52
AVERAGE SKY COVER           0.70
NUMBER OF DAYS FAIR           15
NUMBER OF DAYS PC             37
NUMBER OF DAYS CLOUDY         40

AVERAGE RH (PERCENT)     68

WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM             17     MIXED PRECIP               2
HEAVY RAIN               13     RAIN                      25
LIGHT RAIN               54     FREEZING RAIN              0
LT FREEZING RAIN          0     HAIL                       0
HEAVY SNOW                0     SNOW                       4
LIGHT SNOW               11     SLEET                      1
FOG                      43     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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