Climatological Report (Monthly)
Issued by NWS Flagstaff, AZ

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CXUS55 KFGZ 011403
CLMFLG


CLIMATE REPORT
NATIONAL WEATHER SERVICE FLAGSTAFF, AZ
703 AM MST SUN OCT 1 2017

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

...THE FLAGSTAFF AZ AIRPORT CLIMATE SUMMARY FOR THE MONTH OF SEPTEMBER 2017...

CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1898 TO 2017

WEATHER         OBSERVED          NORMAL  DEPART  LAST YEAR`S
                 VALUE   DATE(S)  VALUE   FROM    VALUE  DATE(S)
                                          NORMAL
................................................................
TEMPERATURE (F)
RECORD
 HIGH              91   09/03/1948
                        09/02/1948
                        09/01/1948
 LOW               20   09/22/1912
HIGHEST            88   09/04                         82  09/19
                                                          09/10
LOWEST             24   09/25                         30  09/24
                                                          09/17
AVG. MAXIMUM     72.5              72.9    -0.4     71.1
AVG. MINIMUM     41.0              42.0    -1.0     42.5
MEAN             56.8              57.4    -0.6     56.8
DAYS MAX >= 90      0               0.0     0.0        0
DAYS MAX <= 32      0               0.0     0.0        0
DAYS MIN <= 32      6               1.7     4.3        5
DAYS MIN <= 0       0               0.0     0.0        0

PRECIPITATION (INCHES)
RECORD
 MAXIMUM         6.75   1983
 MINIMUM            T   1992
                        1973
                        1957
TOTALS           0.42              2.38   -1.96     1.54
DAILY AVG.       0.01              0.08   -0.07     0.05
DAYS >= .01         7               7.9    -0.9        8
DAYS >= .10         1               4.6    -3.6        5
DAYS >= .50         0               1.4    -1.4        0
DAYS >= 1.00        0               0.7    -0.7        0
GREATEST
 24 HR. TOTAL    0.20   09/13 TO 09/13              0.48

SNOWFALL (INCHES)
RECORDS
 TOTAL            2.0   1965
TOTALS            0.0                 T              0.0
SINCE 7/1         0.0                 T     0.0      0.0
SNOWDEPTH AVG.      0                MM      MM        0
GREATEST
 SNOW DEPTH         0   MM                             0  MM
 24 HR TOTAL      0.0   09/30 TO 09/30               0.0

DEGREE_DAYS
HEATING TOTAL     251               229      22      239
 SINCE 7/1        302               317     -15      339
COOLING TOTAL      11                 3       8        1
 SINCE 1/1        184               117      67      131
.................................................................

WIND (MPH)
AVERAGE WIND SPEED              6.3
HIGHEST WIND SPEED/DIRECTION    39/220    DATE  09/14
HIGHEST GUST SPEED/DIRECTION    51/230    DATE  09/14

SKY COVER
POSSIBLE SUNSHINE (PERCENT)   MM
AVERAGE SKY COVER           0.10
NUMBER OF DAYS FAIR           27
NUMBER OF DAYS PC              3
NUMBER OF DAYS CLOUDY          0

AVERAGE RH (PERCENT)     52

WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM              0     MIXED PRECIP               0
HEAVY RAIN                1     RAIN                       1
LIGHT RAIN                9     FREEZING RAIN              0
LT FREEZING RAIN          0     HAIL                       0
HEAVY SNOW                0     SNOW                       0
LIGHT SNOW                0     SLEET                      0
FOG                       3     FOG W/VIS <= 1/4 MILE      0
HAZE                      4

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

$$




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