Climatological Report (Monthly)
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CXUS53 KGRR 012019
CLMLAN

CLIMATE REPORT
NATIONAL WEATHER SERVICE GRAND RAPIDS, MI
1214 PM EDT WED JUN 1 2016

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

...THE LANSING MI CLIMATE SUMMARY FOR THE MONTH OF MAY 2016...

CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1864 TO 2016

WEATHER         OBSERVED          NORMAL  DEPART  LAST YEAR`S
                 VALUE   DATE(S)  VALUE   FROM    VALUE  DATE(S)
                                          NORMAL
................................................................
TEMPERATURE (F)
RECORD
 HIGH              96   05/28/1874
 LOW               19   05/10/1966
HIGHEST            86   05/28        85       1       85  05/07
LOWEST             33   05/15        30       3       34  05/20
AVG. MAXIMUM     69.8              68.8     1.0     71.9
AVG. MINIMUM     47.7              46.7     1.0     50.5
MEAN             58.7              57.7     1.0     61.2
DAYS MAX >= 90      0               0.0     0.0        0
DAYS MAX <= 32      0               0.0     0.0        0
DAYS MIN <= 32      0               1.1    -1.1        0
DAYS MIN <= 0       0               0.0     0.0        0

PRECIPITATION (INCHES)
RECORD
 MAXIMUM        10.44   2004
 MINIMUM         0.62   1977
TOTALS           2.99              3.36   -0.37     3.77
DAILY AVG.       0.10              0.11   -0.01     0.12
DAYS >= .01        12              11.6     0.4       15
DAYS >= .10         7               6.7     0.3       11
DAYS >= .50         3               2.1     0.9        2
DAYS >= 1.00        0               0.6    -0.6        0
GREATEST
 24 HR. TOTAL    0.62   05/12 TO 05/12

SNOWFALL (INCHES)
RECORDS
 TOTAL           11.5   1923
 24 HR TOTAL     11.5   05/09/1923 TO 05/09/1923
 SNOW DEPTH        MM   MM
TOTALS              T                 T     0.0      0.0
SINCE 7/1        50.0              51.1    -1.1     35.6
SNOWDEPTH AVG.      0                MM      MM        0
DAYS >= TRACE       1               0.0     1.0        0
DAYS >= 1.0         0               0.0     0.0        0
GREATEST
 SNOW DEPTH         0   MM                             0  MM
 24 HR TOTAL        T   05/15 TO 05/15

DEGREE_DAYS
HEATING TOTAL     247               259     -12      169
 SINCE 7/1       5772              6657    -885     7175
COOLING TOTAL      61                34      27       59
 SINCE 1/1         62                41      21       59

FREEZE DATES
RECORD
 EARLIEST     08/03/1894
 LATEST       07/15/1863
EARLIEST                        10/01
LATEST                          05/10
.................................................................

WIND (MPH)
AVERAGE WIND SPEED              7.9
RESULTANT WIND SPEED/DIRECTION   1/256
HIGHEST WIND SPEED/DIRECTION    28/210    DATE  05/28
HIGHEST GUST SPEED/DIRECTION    40/270    DATE  05/08

SKY COVER
POSSIBLE SUNSHINE (PERCENT)   MM
AVERAGE SKY COVER           0.40
NUMBER OF DAYS FAIR           16
NUMBER OF DAYS PC              8
NUMBER OF DAYS CLOUDY          7

AVERAGE RH (PERCENT)     63

WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM              5     MIXED PRECIP               0
HEAVY RAIN                3     RAIN                       6
LIGHT RAIN               15     FREEZING RAIN              0
LT FREEZING RAIN          0     HAIL                       0
HEAVY SNOW                0     SNOW                       0
LIGHT SNOW                1     SLEET                      0
FOG                      11     FOG W/VIS <= 1/4 MILE      0
HAZE                      2

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

&&

MAY 2016 ENDED UP SLIGHTLY WARMER THAN NORMAL... THOUGH FEATURED
HINTS OF WINTER AND SUMMER WEATHER NOT MORE THAN WEEKS APART.
PRECIPITATION TOTALS WERE LESS THAN NORMAL. SCATTERED THUNDERSTORMS
OCCURRED AT TIMES BUT ALMOST ENTIRELY REMAINED BELOW SEVERE LEVELS.

THE FIRST TWO WEEKS OF THE MONTH BROUGHT VARIABLE TEMPERATURES AS
CAN BE EXPECTED IN LATE SPRING. HIGH TEMPERATURES RANGED BETWEEN THE
50S AND 70S... AND LOW TEMPERATURES DIPPED BELOW FREEZING IN SPOTS.

A SHARP COOL DOWN OCCURRED ON THE 14TH AND 15TH... WITH RECORD COLD
HIGH TEMPERATURES BEING TIED AT GRAND RAPIDS AND MUSKEGON ON THE
14TH. HIGH TEMPERATURES STRUGGLED TO REACH 50 DEGREES. SCATTERED
SNOW SHOWERS DEVELOPED THE MORNING OF THE 15TH. LIGHT ACCUMULATIONS
GENERALLY LESS THAN A HALF INCH WERE MEASURED IN A NUMBER OF
LOCATIONS. GRAND RAPIDS AND LANSING OFFICIALLY RECORDED A TRACE OF
SNOW... TYING OR EVEN BREAKING DAILY RECORDS.

TEMPERATURES QUICKLY REBOUNDED TO NEAR NORMAL AFTER THE LAST GASP OF
WINTER... AND THEN WARMED TO ABOVE NORMAL FOR THE FINAL THIRD OF THE
MONTH. HIGH TEMPERATURES IN THE 80S AND LOW TEMPERATURES IN THE 60S
WERE COMMON FOR SEVERAL DAYS. EAST WINDS KEEPING LAKE MICHIGAN
MODIFIED AIR AT BAY ALLOWED MUSKEGON TO REACH A RECORD HIGH ON MAY
31ST.

$$

CAS



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