018
CXUS55 KFGZ 072048
CLMFLG

CLIMATE REPORT
NATIONAL WEATHER SERVICE FLAGSTAFF AZ
148 PM MST WED OCT 07 2026

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...THE FLAGSTAFF AZ AIRPORT CLIMATE SUMMARY FOR THE MONTH OF SEPTEMBER 2026...

CLIMATE NORMAL PERIOD 1991 TO 2020
CLIMATE RECORD PERIOD 1898 TO 2026

WEATHER         OBSERVED          NORMAL  DEPART   LAST YEAR`S
                VALUE   DATE(S)   VALUE   FROM     VALUE DATE(S)
                                          NORMAL
................................................................
TEMPERATURE (F)
RECORD
 HIGH             91   09/06/2020
 LOW              20   09/22/1912
HIGHEST           86   09/10                          82  09/01
LOWEST            39   09/20                          35  09/14
                       09/25
                                                          09/15
AVG. MAXIMUM    74.0               74.1    -0.1     73.3
AVG. MINIMUM    47.6               42.5     5.1     44.3
MEAN            60.8               58.3     2.5     58.8
DAYS MAX >= 90     0                0.1    -0.1        0
DAYS MAX <= 32     0                0.0     0.0        0
DAYS MIN <= 32     0                2.2    -2.2        0
DAYS MIN <= 0      0                0.0     0.0        0

PRECIPITATION (INCHES)
RECORD
 MAXIMUM        6.75   1983
 MINIMUM           T   1992
TOTALS          3.50               1.84    1.66     1.90
DAILY AVG.      0.12               0.06    0.06     0.07
DAYS >= .01       13                7.5     5.5       10
DAYS >= .10        6                4.0     2.0        5
DAYS >= .50        2                1.0     1.0        0
DAYS >= 1.00       1                0.5     0.5        0
GREATEST
 24 HR. TOTAL   1.90   09/29 TO 09/30               0.60

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

DEGREE DAYS
HEATING TOTAL    133                204     -71      174
 SINCE 7/1       170                272    -102       MM
COOLING TOTAL     14                  4      10        0
 SINCE 1/1       340                146     194       MM
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WIND (MPH)
AVERAGE WIND SPEED              5.6
HIGHEST WIND SPEED/DIRECTION    28/220    DATE  09/02
HIGHEST GUST SPEED/DIRECTION    39/180    DATE  09/22

SKY COVER
POSSIBLE SUNSHINE (PERCENT)   MM
AVERAGE SKY COVER           0.31
NUMBER OF DAYS FAIR           21
NUMBER OF DAYS PC              5
NUMBER OF DAYS CLOUDY          4

AVERAGE RH (PERCENT)     64

WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM              8     MIXED PRECIP               0
HEAVY RAIN                1     RAIN                       4
LIGHT RAIN               11     FREEZING RAIN              0
LT FREEZING RAIN          0     HAIL                       0
HEAVY SNOW                0     SNOW                       0
LIGHT SNOW                0     SLEET                      0
FOG                       8     FOG W/VIS <= 1/4 MILE      1
HAZE                      2

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

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