Climatological Report (Monthly)
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000
CXUS53 KGRR 011037
CLMLAN


CLIMATE REPORT
NATIONAL WEATHER SERVICE GRAND RAPIDS, MI
629 AM EDT SUN OCT 1 2017

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

...THE LANSING MI CLIMATE SUMMARY FOR THE MONTH OF SEPTEMBER 2017...

CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1864 TO 2017

WEATHER         OBSERVED          NORMAL  DEPART  LAST YEAR`S
                 VALUE   DATE(S)  VALUE   FROM    VALUE  DATE(S)
                                          NORMAL
................................................................
TEMPERATURE (F)
RECORD
 HIGH              99   09/02/1894
 LOW               19   09/21/1863
HIGHEST            95   09/21        88       7       90  09/06
LOWEST             39   09/30        33       6       48  09/28
                        09/10
                        09/09
AVG. MAXIMUM     78.7              72.7     6.0     75.8
AVG. MINIMUM     52.5              51.2     1.3     56.2
MEAN             65.6              61.9     3.7     66.0
DAYS MAX >= 90      6               0.3     5.7        1
DAYS MAX <= 32      0               0.0     0.0        0
DAYS MIN <= 32      0               0.3    -0.3        0
DAYS MIN <= 0       0               0.0     0.0        0

PRECIPITATION (INCHES)
RECORD
 MAXIMUM         8.34   1986
 MINIMUM         0.00   1979
TOTALS           0.94              3.50   -2.56     3.35
DAILY AVG.       0.03              0.12   -0.09     0.11
DAYS >= .01         7              10.7    -3.7       11
DAYS >= .10         3               5.9    -2.9        7
DAYS >= .50         0               2.3    -2.3        2
DAYS >= 1.00        0               0.9    -0.9        1
GREATEST
 24 HR. TOTAL    0.44   09/21 TO 09/21

SNOWFALL (INCHES)
RECORDS
 TOTAL              T   1994
                        1989
                        1967
 24 HR TOTAL        T   MM
 SNOW DEPTH         T   MM
TOTALS            0.0               0.0     0.0      0.0
SINCE 7/1         0.0               0.0     0.0      0.0
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   09/30 TO 09/30

DEGREE_DAYS
HEATING TOTAL     103               153     -50       50
 SINCE 7/1        132               188     -56       53
COOLING TOTAL     130                61      69       89
 SINCE 1/1        764               618     146      855

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

WIND (MPH)
AVERAGE WIND SPEED              5.5
RESULTANT WIND SPEED/DIRECTION   1/225
HIGHEST WIND SPEED/DIRECTION    30/360    DATE  09/21
HIGHEST GUST SPEED/DIRECTION    39/260    DATE  09/04

SKY COVER
POSSIBLE SUNSHINE (PERCENT)   MM
AVERAGE SKY COVER           0.20
NUMBER OF DAYS FAIR           20
NUMBER OF DAYS PC              9
NUMBER OF DAYS CLOUDY          1

AVERAGE RH (PERCENT)     65

WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM              3     MIXED PRECIP               0
HEAVY RAIN                1     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                      20     FOG W/VIS <= 1/4 MILE      2
HAZE                      5

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

$$

JAM



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