Climatological Report (Monthly)
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634
CXAK57 PAJK 031431
CLMYAK
Climate Report
NATIONAL WEATHER SERVICE JUNEAU, AK
620 AM AKDT MON JUL 3 2017

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

...The YAKUTAT climate summary for the month of June 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              87   06/10/1995
 Low               29   06/04/1971
Highest            72   06/08
Lowest             34   06/04
Avg. Maximum     58.1              57.3     0.8
Avg. Minimum     45.9              44.3     1.6
Mean             52.0              50.8     1.2
Days Max >= 90      0               0.0     0.0
Days Max <= 32      0               0.0     0.0
Days Min <= 32      0               0.2    -0.2
Days Min <= 0       0               0.0     0.0

Precipitation (inches)
Record
 Maximum        18.34   1987
 Minimum         0.67   1936
Totals           3.81              6.39   -2.58
Daily Avg.       0.13              0.21   -0.08
Days >= .01        21              17.0     4.0
Days >= .10        13              10.7     2.3
Days >= .50         1               4.1    -3.1
Days >= 1.00        0               1.5    -1.5
Greatest
 24 Hr. Total    0.50   06/16 to 06/16

DEGREE_DAYS
HEATING TOTAL     382               426     -44
 SINCE 7/1       8602              9009    -407
COOLING TOTAL       0                 0       0
 SINCE 1/1          0                 0       0

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

Wind (mph)
Average Wind Speed              4.3
Highest Wind Speed/Direction    18/060    Date  06/06
Highest Gust Speed/Direction    26/130    Date  06/19


Weather Conditions. Number Of Days With
Thunderstorm              0     Mixed Precip               0
Heavy Rain                1     Rain                       6
Light Rain               25     Freezing Rain              0
Lt Freezing Rain          0     Hail                       0
Heavy Snow                0     Snow                       0
Light Snow                0     Sleet                      0
Fog                      24     Fog w/vis <= 1/4 mile      2
Haze                      2

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

$$
...Wet and cool weather prevailed over most of the panhandle in
June...

June began with some thunderstorm activity along the coast mountains
with most of it confined to British Columbia. An area of low
pressure prevailed most of the month over the Gulf of Alaska with
numerous systems impacting Southeast Alaska keeping temperatures
slightly below normal and above normal precipitation for all but the
northern panhandle and north gulf coast.

A break in the fairly persistent clouds over the northern panhandle
resulted in Skagway reaching 80F for the first time July 2016. These
warm temperatures resulted in rises to bankfull on the Chilkat and
Taiya rivers which produced some minor/nuisance flooding.

After the warm temperatures early in the month, a cooler airmass
became entrenched over the region with snowlevels dropping to 3000
to 4000 feet. 2-3 inches of snow was reported at Chilkat Pass on
June 17th.

Suicide Basin released multiple times during the month, as indicated
by a sensor placed in the basin and webcam imagery. Mendenhall Lake
rose in response, but the lake level was so low to begin with that
no flooding occurred. A glacial lake outburst also occurred on the
Taku River early in June with no flooding there either.

$$



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