Climatological Report (Monthly)
Issued by NWS Anchorage, AK

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CXAK58 PAFC 041935
CLMANC


CLIMATE REPORT
NATIONAL WEATHER SERVICE ANCHORAGE, AK
1134 AM AKDT WED OCT 4 2017

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

...THE ANCHORAGE AK CLIMATE SUMMARY FOR THE MONTH OF SEPTEMBER 2017...

CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1952 TO 2017

WEATHER         OBSERVED          NORMAL  DEPART  LAST YEAR`S
                 VALUE   DATE(S)  VALUE   FROM    VALUE  DATE(S)
                                          NORMAL
................................................................
TEMPERATURE (F)
RECORD
 HIGH              73   09/05/1957
 LOW               19   09/24/1992
HIGHEST            66                MM      MM       71
LOWEST             36                MM      MM       32
AVG. MAXIMUM     57.0              55.1     1.9     58.5
AVG. MINIMUM     46.0              42.0     4.0     44.8
MEAN             51.5              48.6     2.9     51.7
DAYS MAX >= 90      0               0.0     0.0        0
DAYS MAX <= 32      0               0.0     0.0        0
DAYS MIN <= 32      0               2.5    -2.5        1
DAYS MIN <= 0       0               0.0     0.0        0

PRECIPITATION (INCHES)
RECORD
 MAXIMUM         7.71   2015
 MINIMUM         0.00   2016
TOTALS           2.46              2.99   -0.53     2.35
DAILY AVG.       0.08              0.10   -0.02     0.08
DAYS >= .01        12              14.8    -2.8       16
DAYS >= .10         7               8.4    -1.4        8
DAYS >= .50         2               1.5     0.5        1
DAYS >= 1.00        0               0.3    -0.3        0
GREATEST
 24 HR. TOTAL    0.56   09/01 TO 09/01           09/21 TO 09/22
                                                          09/30 TO 09/30
                                                          09/30 TO 09/30
 STORM TOTAL       MM                                 MM
 (MM/DD(HH))            MM                    09/22(00) TO 09/22(00)
                                                 09/30(00) TO 09/30(00)0
                                                 09/30(00) TO 09/30(00)0

SNOWFALL (INCHES)
RECORDS
 TOTAL            6.3   2004
 24 HR TOTAL      3.5   09/29/1965 TO 09/30/1965
 SNOW DEPTH         5   09/25/2004
TOTALS            0.0               0.4    -0.4      0.0
SINCE 7/1         0.0               0.4    -0.4      0.0
SNOWDEPTH AVG.      0                MM      MM        0
DAYS >= TRACE       0               0.2    -0.2        0
DAYS >= 1.0         0               0.1    -0.1        0
GREATEST
 SNOW DEPTH         0   MM                             0  MM
 24 HR TOTAL      0.0   09/30 TO 09/30           09/30 TO 09/30
                                                          09/30 TO 09/30
                                                          09/30 TO 09/30
 STORM TOTAL       MM                                 MM
 (MM/DD(HH))            MM                    09/30(00) TO 09/30(00)
                                                 09/30(00) TO 09/30(00)0
                                                 09/30(00) TO 09/30(00)0

DEGREE_DAYS
HEATING TOTAL     397               494     -97      393
 SINCE 7/1        765               944    -179      597
COOLING TOTAL       0                 0       0        0
 SINCE 1/1          3                 2       1       13

FREEZE DATES
RECORD
 EARLIEST     08/28/1984
 LATEST       05/22/1964
EARLIEST                        09/23
LATEST                          05/08
.................................................

WIND (MPH)
AVERAGE WIND SPEED              6.8
RESULTANT WIND SPEED/DIRECTION   3/142
HIGHEST WIND SPEED/DIRECTION    28/120    DATE  09/06
HIGHEST GUST SPEED/DIRECTION    50/160    DATE  09/06

SKY COVER
POSSIBLE SUNSHINE (PERCENT)   MM
AVERAGE SKY COVER           0.80
NUMBER OF DAYS FAIR            0
NUMBER OF DAYS PC              9
NUMBER OF DAYS CLOUDY         21

AVERAGE RH (PERCENT)     78

WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM              0     MIXED PRECIP               0
HEAVY RAIN                0     RAIN                       4
LIGHT RAIN               22     FREEZING RAIN              0
LT FREEZING RAIN          0     HAIL                       0
HEAVY SNOW                0     SNOW                       0
LIGHT SNOW                0     SLEET                      0
FOG                       7     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.

$$



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