Climatological Report (Monthly)
Issued by NWS Raleigh/Durham, NC

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000
CXUS52 KRAH 011357
CLMRDU


CLIMATE REPORT
NATIONAL WEATHER SERVICE RALEIGH NC
953 AM EDT SUN OCT 1 2017

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

...THE RALEIGH-DURHAM INTL AIRPORT CLIMATE SUMMARY FOR THE MONTH OF SEPTEMBER 2017...

CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1887 TO 2017

WEATHER         OBSERVED          NORMAL  DEPART  LAST YEAR`S
                 VALUE   DATE(S)  VALUE   FROM    VALUE
                                          NORMAL
.............................................................
TEMPERATURE (F)
RECORD
 HIGH             104   09/06/1954
 LOW               37   09/23/1983
                        09/26/1950
HIGHEST            94   09/28                         96
LOWEST             51   09/10                         58
                        09/08
AVG. MAXIMUM     82.8              82.1     0.7     85.5
AVG. MINIMUM     61.0              61.7    -0.7     67.3
MEAN             71.9              71.9     0.0     76.4
DAYS MAX >= 90      4                                 12
DAYS MAX <= 32      0                                  0
DAYS MIN <= 32      0                                  0
DAYS MIN <= 0       0                                  0

PRECIPITATION (INCHES)
RECORD
 MAXIMUM        21.79   1999
TOTALS           2.28              4.36   -2.08     4.61
DAYS >= .01         5
DAYS >= .10         3
DAYS >= .50         3
DAYS >= 1.00        1
GREATEST
 24 HR. TOTAL    1.06   09/01 TO 09/01

DEGREE_DAYS
HEATING TOTAL       7                20     -13        0
 SINCE 7/1          7                21     -14        0
COOLING TOTAL     221               227      -6      349
 SINCE 1/1       1853              1668     185
..............................................................

WIND (MPH)
AVERAGE WIND SPEED              5.6
HIGHEST WIND SPEED/DIRECTION    24/050    DATE  09/21
HIGHEST GUST SPEED/DIRECTION    34/050    DATE  09/21

SKY COVER
POSSIBLE SUNSHINE (PERCENT)   MM
AVERAGE SKY COVER           0.50
NUMBER OF DAYS FAIR           13
NUMBER OF DAYS PC             11
NUMBER OF DAYS CLOUDY          6

AVERAGE RH (PERCENT)     74

WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM              3     MIXED PRECIP               0
HEAVY RAIN                3     RAIN                       3
LIGHT RAIN                6     FREEZING RAIN              0
LT FREEZING RAIN          0     HAIL                       0
HEAVY SNOW                0     SNOW                       0
LIGHT SNOW                0     SLEET                      0
FOG                      16     FOG W/VIS <= 1/4 MILE      2
HAZE                      0

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

&&

NO RECORDS SET AT RDU.

$$





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