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 46
000
CXUS53 KGRR 021542 CCB
CLMJXN

CLIMATE REPORT...CORRECTED
NATIONAL WEATHER SERVICE GRAND RAPIDS, MI
1229 PM EDT FRI SEP 1 2017

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

...THE JACKSON MI CLIMATE SUMMARY FOR THE MONTH OF AUGUST 2017...

CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1944 TO 9999

WEATHER         OBSERVED          NORMAL  DEPART  LAST YEAR`S
                 VALUE   DATE(S)  VALUE   FROM    VALUE  DATE(S)
                                          NORMAL
................................................................
TEMPERATURE (F)
HIGHEST            87   08/21        MM      MM       93  08/12
                        08/01
LOWEST             41   08/25        MM      MM       54  08/22
                                                          08/08
AVG. MAXIMUM     78.3              80.1    -1.8     83.5
AVG. MINIMUM     56.2              59.0    -2.8     63.0
MEAN             67.3              69.5    -2.2     73.3
DAYS MAX >= 90      0               1.7    -1.7        4
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)
TOTALS           1.61              3.47   -1.86     9.51
DAILY AVG.       0.06              0.11   -0.05     0.31
DAYS >= .01         7               9.5    -2.5        8
DAYS >= .10         5               6.3    -1.3        7
DAYS >= .50         1               2.5    -1.5        4
DAYS >= 1.00        0               1.0    -1.0        3
GREATEST
 24 HR. TOTAL    0.84   08/03 TO 08/03

DEGREE_DAYS
HEATING TOTAL      27                24       3        0
 SINCE 7/1         27                35      -8        4
COOLING TOTAL     105               164     -59      266
 SINCE 1/1        527               529      -2      728
.................................................................

WIND (MPH)
AVERAGE WIND SPEED              6.0
RESULTANT WIND SPEED/DIRECTION   3/238
HIGHEST WIND SPEED/DIRECTION    29/180    DATE  08/03
HIGHEST GUST SPEED/DIRECTION    40/210    DATE  08/22

SKY COVER
POSSIBLE SUNSHINE (PERCENT)   MM
AVERAGE SKY COVER           0.30
NUMBER OF DAYS FAIR           19
NUMBER OF DAYS PC             10
NUMBER OF DAYS CLOUDY          1

AVERAGE RH (PERCENT)     69

WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM              5     MIXED PRECIP               0
HEAVY RAIN                2     RAIN                       3
LIGHT RAIN               11     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      4
HAZE                      5

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

&&

AUGUST 2017 TEMPERATURES WERE BELOW NORMAL FOR THE REGION AND
PRECIPITATION WAS MUCH BELOW NORMAL, IN SOME CASES LESS THAN HALF OF
THE NORMAL AMOUNT. NO MAJOR WEATHER EVENTS OCCURRED DURING THIS
MONTH AND THE ONLY LAND BASED SEVERE WEATHER WARNINGS WERE ISSUED ON
AUGUST 3. HIGH WAVE EVENTS WERE RECORDED ON THE 4TH, 18TH, AND 23RD.

THERE WERE NO MONTHLY PRECIPITATION OR TEMPERATURE RECORDS NOR ANY
DAILY RECORDS. WHILE THERE WERE SOME POCKETS OF HEAVY RAINFALL AT
TIMES, MOST OF THESE MISSED THE REPORTING STATIONS AT GRAND RAPIDS,
MUSKEGON, AND LANSING. THERE WERE SOME REPORTS OF LARGE HAIL ON
AUGUST 3 AS A LAKE BREEZE DEVELOPED OFF LAKE MICHIGAN AND
THUNDERSTORMS DEVELOPED. GOLF BALL SIZE HAIL WAS REPORTED IN ALLEGAN
COUNTY AND QUARTER SIZE HAILED WAS REPORTED IN OTTAWA COUNTY.

HIGH WAVE EVENTS CREATED HAZARDOUS BEACH CONDITIONS ON THE 4TH,
18TH, AND 23RD. THERE MAY HAVE EVEN BEEN SOME BEACH EROSION ALONG
THE COAST GIVEN HIGH LAKE LEVELS IN RECENT MONTHS.

WITH MUCH LESS THAN NORMAL RAINFALL FOR THE REGION, THE SOUTHERN
HALF OF THE LOWER PENINSULA WAS DESIGNATED AS "ABNORMALLY DRY" BY
THE UNITED STATES DROUGHT MONITOR BY THE END OF AUGUST. THIS IS
EQUIVALENT TO THE "D0" CATEGORY, ON A SCALE OF D0 TO D5. TYPICALLY
GREATER IMPACTS ARE EXPERIENCED BY THE D1 OR D2 CATEGORIES.

$$


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