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

Home | Current Version | Previous Version | Text Only | Print | Product List | Glossary Off
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 47 48 49 50

000
CXUS53 KGRR 021645 CCA
CLMGRR

CLIMATE REPORT
NATIONAL WEATHER SERVICE GRAND RAPIDS, MI
1213 PM EST SUN NOV 1 2015

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

...THE GRAND RAPIDS MI CLIMATE SUMMARY FOR THE MONTH OF OCTOBER 2015...

CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1892 TO 2015

WEATHER         OBSERVED          NORMAL  DEPART  LAST YEAR`S
                 VALUE   DATE(S)  VALUE   FROM    VALUE  DATE(S)
                                          NORMAL
................................................................
TEMPERATURE (F)
RECORD
 HIGH              89   10/01/1897
 LOW               18   10/30/1988
                        10/21/1974
HIGHEST            76   10/11        79      -3       75  10/27
LOWEST             29   10/18        26       3       29  10/23
AVG. MAXIMUM     61.1              60.3     0.8     60.2
AVG. MINIMUM     43.1              41.8     1.3     41.5
MEAN             52.1              51.0     1.1     50.8
DAYS MAX >= 90      0               0.0     0.0        0
DAYS MAX <= 32      0               0.0     0.0        0
DAYS MIN <= 32      2               3.4    -1.4        4
DAYS MIN <= 0       0               0.0     0.0        0

PRECIPITATION (INCHES)
RECORD
 MAXIMUM         8.32   1954
 MINIMUM         0.03   1952
TOTALS           3.27              3.26    0.01     4.98
DAILY AVG.       0.11              0.11    0.00     0.16
DAYS >= .01        12              11.8     0.2       15
DAYS >= .10         8               6.8     1.2        8
DAYS >= .50         2               2.1    -0.1        2
DAYS >= 1.00        0               0.6    -0.6        1
GREATEST
 24 HR. TOTAL    0.70   10/27 TO 10/28

SNOWFALL (INCHES)
RECORDS
 TOTAL            8.4   1967
 24 HR TOTAL      8.4   10/26/1967 TO 10/27/1967
 SNOW DEPTH         5   10/27/1967
TOTALS              T               0.5    -0.5        T
SINCE 7/1           T               0.5    -0.5        T
SNOWDEPTH AVG.      0                MM      MM        0
DAYS >= TRACE       2               0.5     1.5        2
DAYS >= 1.0         0               0.2    -0.2        0
GREATEST
 SNOW DEPTH         0   MM                             0  MM
 24 HR TOTAL        T   10/29 TO 10/29

DEGREE_DAYS
HEATING TOTAL     392               440     -48      432
 SINCE 7/1        481               592    -111      582
COOLING TOTAL       0                 7      -7        0
 SINCE 1/1        642               699     -57      611

FREEZE DATES
RECORD
 EARLIEST     09/03/1946
 LATEST       06/04/1945
EARLIEST      10/17             10/13
LATEST                          05/02
..................................................

WIND (MPH)
AVERAGE WIND SPEED              10.5
RESULTANT WIND SPEED/DIRECTION   1/233
HIGHEST WIND SPEED/DIRECTION    35/260    DATE  10/28
HIGHEST GUST SPEED/DIRECTION    42/250    DATE  10/28

SKY COVER
POSSIBLE SUNSHINE (PERCENT)   39
AVERAGE SKY COVER           0.70
NUMBER OF DAYS FAIR            3
NUMBER OF DAYS PC             15
NUMBER OF DAYS CLOUDY         12

AVERAGE RH (PERCENT)     73

WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM              2     MIXED PRECIP               1
HEAVY RAIN                1     RAIN                       5
LIGHT RAIN               20     FREEZING RAIN              0
LT FREEZING RAIN          0     HAIL                       0
HEAVY SNOW                0     SNOW                       0
LIGHT SNOW                2     SLEET                      1
FOG                      18     FOG W/VIS <= 1/4 MILE      2
HAZE                      1

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

&&

OCTOBER WAS A RATHER TRANQUIL FALL MONTH. THERE IS LITTLE TO MENTION
IN THE WAY OF THUNDERSTORMS AND LARGE VARIATIONS IN DAY-TO-DAY
TEMPERATURES WAS LIMITED. THE ONLY RECORD ACHIEVED WAS IN
LANSING...WHERE A TRACE OF SNOWFALL ON OCTOBER 18TH TIED NINE OTHER
OCCURRENCES ON THAT DATE.

DAILY TEMPERATURES WERE LARGELY NEAR NORMAL WITH FEW DAYS WELL ABOVE
OR WELL BELOW NORMAL. IT WAS SLIGHTLY COOLER THAN NORMAL THROUGH THE
FIRST FOUR DAYS OF THE MONTH...BEFORE TRENDING SLIGHTLY ABOVE NORMAL
THROUGH THE REMAINDER OF THE FIRST WEEK OF OCTOBER. THE WARMEST DAY
OF THE MONTH OCCURRED ON OCTOBER 11TH...WHEN HIGH TEMPERATURES
TOPPED OUT IN THE LOW TO MID 70S. TEMPERATURES GRADUALLY TRENDED
COOLER BY OCTOBER 17TH...EVENTUALLY RESULTING IN HIGHS THAT FAILED
TO GET OUT OF THE 40S AND MORNING LOWS ON OCTOBER 18TH IN THE 20S
AND 30S. HOWEVER...COOL WEATHER DID NOT LAST. BY OCTOBER 19TH...HIGH
TEMPERATURES WERE APPROXIMATELY 15 TO 25 DEGREES ABOVE NORMAL. HIGH
TEMPERATURES RANGED FROM FROM THE MID-60S TO LOWER 70S. MILD WEATHER
CONTINUED UP UNTIL OCTOBER 22ND...WHEN TEMPERATURES RETURNED TO NEAR
NORMAL. THE REMAINDER OF THE MONTH RESIDED IN NEAR NORMAL TERRITORY
WITH EXCEPTION OF OCTOBER 24TH...WHEN HIGHS WERE ABOUT 10 DEGREES
ABOVE NORMAL.

THE MONTH ENDED NEAR OR BELOW NORMAL FOR ALL OF SOUTHWEST LOWER
MICHIGAN...NEARLY VOID OF PRECIPITATION EVENTS DESERVING OF
RECOGNITION. THE DRIEST CONDITIONS SPREAD ACROSS THE SOUTHERN THIRD
OF THE STATE WITH MANY LOCATIONS REACHING ABNORMALLY DRY STATUS. EACH
CLIMATE SITE RECORDED FIVE OR LESS DAYS WITH RAINFALL TOTALS GREATER
THAN ONE-QUARTER OF AN INCH. THE FINAL FOUR DAYS OF THE MONTH ACTED
AS A CATCH-UP PERIOD...ACCOUNTING FOR ROUGHLY ONE-THIRD TO ONE-HALF
OF EACH SITES MONTHLY TOTAL. THE LARGEST DAILY TOTALS FOR ALL THREE
SITES OCCURRED ON OCTOBER 28TH AND OCTOBER 31ST...PUTTING A DAMPER
ON HALLOWEEN FOR MANY TRICK-OR-TREATERS.

EVEN THE MOST EVENTFUL WEATHER IN OCTOBER WAS RELATIVELY MINOR.
SCATTERED SHOWERS AND THUNDERSTORMS DEVELOPED THE EVENING OF OCTOBER
15TH...SOME OF WHICH PRODUCED SMALL HAIL PLUS ONE WHICH DROPPED
NICKEL SIZE HAIL IN LUDINGTON. NUMEROUS WIND GUSTS BETWEEN 35 AND 50
MPH WERE RECORDED WITH THESE SHOWERS AND STORMS...AND A 56 MPH GUST
WAS MEASURED NEAR REED CITY. ON OCTOBER 24TH...A RATHER FORMIDABLE
COLD FRONT DEVELOPED A THIN LINE OF QUICKLY MOVING STORMS. HEAVY
RAIN...GUSTY WINDS IN EXCESS OF 40 MILES PER HOUR AND FEW LIGHTNING
STRIKES WERE NOTED AS THE LINE PUSHED THROUGH THE AREA.

THE SEASONS FIRST OBSERVED SNOWFLAKES FELL ON OCTOBER 17TH. NO
ACCUMULATIONS WERE REPORTED. ANOTHER TRACE OF SNOW WAS RECORDED ON
OCTOBER 29TH WHEN SNOW MIXED WITH SLEET AND RAIN. SOME REPORTS WERE
RECEIVED FROM NORTHERN LOCATIONS IN THE FORECAST AREA WITH A TRACE
OF SNOWFALL THAT HAD ACCUMULATED ON GRASSY SURFACES. ACCUMULATIONS
QUICKLY MELTED AS SNOW ENDED.

$$

63/JAM


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