000
CXUS53 KGRR 012146
CLMGRR

CLIMATE REPORT...WITH NARRATIVE
NATIONAL WEATHER SERVICE GRAND RAPIDS, MI
545 PM EDT THU NOV 1 2012

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

...THE GRAND RAPIDS MI CLIMATE SUMMARY FOR THE MONTH OF OCTOBER 2012...

CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1892 TO 2012

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            78   10/25        79      -1       82  10/09
                                                          10/07
LOWEST             32   10/16        26       6       28  10/30
                        10/08                             10/28
AVG. MAXIMUM     59.5              60.3    -0.8     63.1
AVG. MINIMUM     42.1              41.8     0.3     41.9
MEAN             50.8              51.0    -0.2     52.5
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           6.32              3.26    3.06     3.13
DAILY AVG.       0.20              0.11    0.09     0.10
DAYS >= .01        17              11.8     5.2       13
DAYS >= .10        14               6.8     7.2        8
DAYS >= .50         4               2.1     1.9        2
DAYS >= 1.00        2               0.6     1.4        0
GREATEST
 24 HR. TOTAL    1.51   10/22 TO 10/23                    MM

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
 LIQUID EQUIV      MM              0.10      MM       MM
SINCE 7/1           T               0.5    -0.5        T
 LIQUID 7/1        MM              0.10      MM       MM
SNOWDEPTH AVG.      0                MM      MM        0
DAYS >= TRACE       3               0.5     2.5        1
DAYS >= 1.0         0               0.2    -0.2        0
GREATEST
 SNOW DEPTH         0   MM                             0  MM
 24 HR TOTAL        T   10/10 TO 10/10                    MM
                        10/30 TO 10/30
                        10/31 TO 10/31

DEGREE_DAYS
HEATING TOTAL     436               440      -4      385
 SINCE 7/1        570               592     -22      542
COOLING TOTAL       4                 7      -3        7
 SINCE 1/1       1039               699     340      894

FREEZE DATES
RECORD
 EARLIEST     09/03/1946
 LATEST       06/04/1945
EARLIEST      10/08             10/13
LATEST                          05/02
.........................................................

WIND (MPH)
AVERAGE WIND SPEED              9.7
RESULTANT WIND SPEED/DIRECTION   3/239
HIGHEST WIND SPEED/DIRECTION    35/240    DATE  10/11
HIGHEST GUST SPEED/DIRECTION    48/230    DATE  10/05

SKY COVER
POSSIBLE SUNSHINE (PERCENT)   43
AVERAGE SKY COVER           0.70
NUMBER OF DAYS FAIR            4
NUMBER OF DAYS PC             14
NUMBER OF DAYS CLOUDY         13

AVERAGE RH (PERCENT)     71

WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM              0     MIXED PRECIP               0
HEAVY RAIN                5     RAIN                      10
LIGHT RAIN               21     FREEZING RAIN              0
LT FREEZING RAIN          0     HAIL                       0
HEAVY SNOW                0     SNOW                       1
LIGHT SNOW                0     SLEET                      0
FOG                      19     FOG W/VIS <= 1/4 MILE      0
HAZE                      7

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

&&

TEMPERATURES IN OCTOBER 2012 WERE CLOSE TO NORMAL. THE BEGINNING OF
THE MONTH WAS ABOVE NORMAL AS SOUTHERLY FLOW PREVAILED THROUGH THE
4TH. A COLD FRONT THEN PASSED THROUGH THE AREA... USHERING IN
GENERALLY BELOW AVERAGE TEMPERATURES THROUGH THE 13TH. A COUPLE
SYSTEMS PASSED THROUGH THE REGION WITH WARMING AHEAD OF THEM AND
COOLING BEHIND. THIS RESULTED IN NEAR NORMAL TEMPERATURES THROUGH
THE 21ST. SOUTHERLY FLOW MADE A STRONG BRIEF PUSH INTO THE AREA INTO
THE 26TH... WITH RECORD HIGH TEMPERATURES ON THE 26TH. A COLD FRONT
THEN PUSHED THROUGH THE REGION AND COOLED TEMPERATURES TO BELOW
NORMAL THROUGH THE END OF OCTOBER.

PRECIPITATION WAS MUCH ABOVE NORMAL IN OCTOBER. MUSKEGON AND GRAND
RAPIDS HAD AROUND TWICE THEIR NORMAL VALUES WITH LANSING NEARLY
DOUBLE. MUCH OF THE PRECIPITATION CAME WITH SYSTEMS ON THE
13TH-14TH, 17TH-19TH AND 22ND-23RD. THESE SYSTEMS ALL HAD GOOD
MOISTURE FLOW FROM THE SOUTH AHEAD OF THEM.

MAINLY TRACE AMOUNTS OF SNOW WERE REPORTED IN SOUTHWEST LOWER
MICHIGAN IN OCTOBER. A FEW MEASURABLE AMOUNTS FELL ACROSS THE AREA
NEAR THE END OF THE MONTH... AS THE MOISTURE FROM THE REMNANTS OF
HURRICANE SANDY PUSHED WEST INTO THE COLD AIR ENTRENCHED OVER
MICHIGAN. HURRICANE SANDY WAS ALSO RESPONSIBLE FOR WINDY CONDITIONS
ACROSS THE STATE AND ESPECIALLY OVER LAKE MICHIGAN...WHERE STRONG
WINDS FROM 55 TO 65 MPH HELPED GENERATE 20 FOOT WAVES.

INTERESTING WEATHER DURING THE MONTH INCLUDED... WATER SPOUTS ON THE
7TH / HAIL OR STRONG WINDS ON THE 10TH-11TH 14TH 17TH AND 29TH-30TH
/ SNOW OR SLEET OR ICE PELLETS ON THE 10TH AND 30TH.

$$

63 HOVING