Climatological Report (Monthly)
Issued by NWS Anchorage, AK

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CXAK58 PAFC 021728 RRA
CLMANC

ANCCLMANC 000
TTAA00 AFC 021656

CLIMATE REPORT
NATIONAL WEATHER SERVICE ANCHORAGE, AK
755 AM AKST SAT JAN 02 2021

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

...THE ANCHORAGE AK CLIMATE SUMMARY FOR THE MONTH OF DECEMBER 2020...

CLIMATE NORMAL PERIOD: 1981 TO 2010
CLIMATE RECORD PERIOD: 1952 TO 2021

WEATHER         OBSERVED          NORMAL  DEPART   LAST YEAR`S
                VALUE   DATE(S)   VALUE   FROM     VALUE
                                          NORMAL
..............................................................
TEMPERATURE (F)
RECORD
 HIGH             51   12/09/2019
 LOW             -36   12/14/1964
                       12/28/1961
                       12/27/1961
HIGHEST           45                 MM      MM       51
LOWEST            -3                 MM      MM        2
AVG. MAXIMUM    28.4               24.8     3.6     30.4
AVG. MINIMUM    16.8               13.2     3.6     19.1
MEAN            22.6               19.0     3.6     24.7
DAYS MAX >= 90     0                0.0     0.0        0
DAYS MAX <= 32    23               23.4    -0.4       17
DAYS MIN <= 32    31               30.1     0.9       30
DAYS MIN <= 0      2                4.6    -2.6        0

PRECIPITATION (INCHES)
RECORD
 MAXIMUM        2.67   2011
 MINIMUM        0.09
TOTALS          1.49               1.11    0.38     0.98
DAILY AVG.      0.05               0.04    0.01     0.03
DAYS >= .01       11               10.5     0.5       14
DAYS >= .10        7                3.7     3.3        4
DAYS >= .50        0                0.3    -0.3        0
DAYS >= 1.00       0                0.0     0.0        0
GREATEST
 24 HR. TOTAL   0.37   12/19 TO 12/19               0.19
 STORM TOTAL    0.37                                  MM
 (MM/DD(HH))

SNOWFALL (INCHES)
RECORDS
 TOTAL          41.6   1955
 24 HR TOTAL    22.2   MM
 SNOW DEPTH       47   12/31/1955
TOTALS          22.2               16.7     5.5     20.2
SINCE 7/1       36.1               38.1    -2.0       MM
SNOWDEPTH AVG.    14                                   3
DAYS >= TRACE     18               10.8     7.2       16
DAYS >= 1.0        6                4.6     1.4        7
GREATEST
 SNOW DEPTH       21   12/20                           7
                       12/21
 24 HR TOTAL    22.2R                                5.0
 STORM TOTAL     8.0                                  MM
 (MM/DD(HH))

DEGREE DAYS
HEATING TOTAL   1306               1426    -120     1240
 SINCE 7/1      4187               4590    -403     3329
COOLING TOTAL      0                  0       0        0
 SINCE 1/1         3                  2       1      105

FREEZE DATES
RECORD
 EARLIEST     08/28/1984
 LATEST       05/22/1964
EARLIEST                        10/10
LATEST                          05/05
..............................................................

WIND (MPH)
AVERAGE WIND SPEED              6.3
RESULTANT WIND SPEED/DIRECTION   2/030
HIGHEST WIND SPEED/DIRECTION    28/150    DATE  12/02
HIGHEST GUST SPEED/DIRECTION    41/160    DATE  12/02

SKY COVER
POSSIBLE SUNSHINE (PERCENT)   MM
AVERAGE SKY COVER           0.77
NUMBER OF DAYS FAIR            1
NUMBER OF DAYS PC              8
NUMBER OF DAYS CLOUDY         22

AVERAGE RH (PERCENT)     79

WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM              0     MIXED PRECIP               0
HEAVY RAIN                0     RAIN                       1
LIGHT RAIN                6     FREEZING RAIN              0
LT FREEZING RAIN          1     HAIL                       0
HEAVY SNOW                1     SNOW                       3
LIGHT SNOW               15     SLEET                      0
FOG                      14     FOG W/VIS <= 1/4 MILE      2
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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