Climatological Report (Monthly)
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703
CXAK57 PAJK 011437
CLMYAK
Climate Report
NATIONAL WEATHER SERVICE JUNEAU, AK
523 AM AKST WED FEB 1 2017

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

...The YAKUTAT climate summary for the month of January 2017...

Climate normal period 1981 to 2010
Climate record period 1917 to 2017

Weather         Observed          Normal  Depart  Last Year`s
                 Value   Date(s)  Value   From    Value
                                          Normal
.............................................................
Temperature (F)
Record
 High              58   01/19/1930
 Low              -22   01/22/1952
                        01/29/1947

Highest            45   01/27
Lowest              3   01/21
                        01/20
Avg. Maximum     34.6              33.8     0.8
Avg. Minimum     21.1              22.4    -1.3
Mean             27.8              28.1    -0.3
Days Max >= 90      0               0.0     0.0
Days Max <= 32     13              11.5     1.5
Days Min <= 32     24              23.8     0.2
Days Min <= 0       0               1.8    -1.8

Precipitation (inches)
Record
 Maximum        31.81   1985
 Minimum         0.60   1930
Totals          13.39             13.66   -0.27
Daily Avg.       0.43              0.44   -0.01
Days >= .01        18              21.9    -3.9
Days >= .10        13              17.7    -4.7
Days >= .50         9               8.9     0.1
Days >= 1.00        4               4.5    -0.5
Greatest
 24 Hr. Total    3.31   01/13 to 01/14

Snowfall (inches)
Records
 Total          116.2   1989
 24 Hr Total     23.5   01/03/1971
 Snow Depth        91   01/28/2012
Totals           27.6              31.9    -4.3
Since 7/1        54.2              75.8   -21.6
Snowdepth Avg.      5                 9      -4
Days >= Trace      17              12.2     4.8
Days >= 1.0         7               8.0    -1.0        0
Greatest
 Snow Depth        14   01/24
 24 Hr Total      7.9   01/24

DEGREE_DAYS
HEATING TOTAL    1147              1144       3
 SINCE 7/1       4744              5126    -382
COOLING TOTAL       0                 0       0
 SINCE 1/1          0                 0       0

FREEZE DATES
EARLIEST      01/03             09/16
LATEST                          05/25
..............................................................

Wind (mph)
Average Wind Speed              5.5
Highest Wind Speed/Direction    39/060    Date  01/07
Highest Gust Speed/Direction    59/120    Date  01/27


Weather Conditions. Number Of Days With
Thunderstorm              0     Mixed Precip               0
Heavy Rain                3     Rain                      10
Light Rain               12     Freezing Rain              0
Lt Freezing Rain          0     Hail                       1
Heavy Snow                2     Snow                       8
Light Snow               14     Sleet                      6
Fog                      27     Fog w/vis <= 1/4 mile      4
Haze                      5

-  Indicates negative numbers.
R  Indicates record was set or tied.
MM Indicates data is missing.
T  Indicates Trace Amount.

$$
&&

...Windy January with variable snowfall across the panhandle...

The most notable weather of January 2017 across southeast Alaska was
the wind. High wind warnings were issued for various portions of the
panhandle on six different occasions, with the first on the 5th of
January and the last on the 27th of the month. In addition to these
high wind events, there were numerous times where strong wind gusts
of 40 mph or greater impacted the region.

January temperatures once again trended above average, and this can
be seen most clearly in a graph of accumulated heating degree days
for the month. In looking more closely at the data, daily records
indicate above normal from the 13th through about the 18th and again
from the 23rd through the 28th. During these two periods, observed
overnight lows were in many cases warmer than what normal daytime
highs are for this time of the year.

Very dry conditions prevailed through the 11th of the month.
Precipitation returned on the 12th of the month across all of
southeast Alaska with accumulations rapidly rising towards normal by
the 15th of January. Monthly precipitation accumulations trended
above normal for the remainder of the month in Juneau and Sitka
while hovering around normal for Yakutat. Annette island accumulated
precip remained below normal for the entire month in spite of rain
and snow received around the middle of the month and then again in
the last week.

The return of significant precip to the panhandle at the end of the
second week of January did not parlay into meaningful snowfall, as
this coincided with one of the warmer times of the month. In fact,
of the three climate sites that report snowfall, only Yakutat came
anywhere close to a climate-normal snow total for the month. Both
Juneau and Annette Island rivaled 2016, the poorest January on
record in terms of snowfall. Still there was significant snowfall in
portions of southeast Alaska this past January. Winter weather
warnings were issued on 5 separate occasions, for Haines, Skagway,
and Misty Fjords.

$$

$$



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