Climatological Report (Monthly)
Issued by NWS

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CXAK57 PAJK 031431
CLMAJK
Climate Report
NATIONAL WEATHER SERVICE JUNEAU, AK
620 AM AKDT MON JUL 3 2017

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

...The JUNEAU climate summary for the month of June 2017...

Climate normal period 1981 to 2010
Climate record period 1936 to 2017

Weather         Observed          Normal  Depart  Last Year`s
                 Value   Date(s)  Value   From    Value
                                          Normal
.............................................................
Temperature (F)
Record
 High              86   06/13/1969
 Low               31   06/03/1971
                        06/13/1965
                        06/07/1955
Highest            73   06/08        77      -4
Lowest             36   06/04        38      -2
Avg. Maximum     59.7              62.2    -2.5
Avg. Minimum     47.0              46.9     0.1
Mean             53.4              54.6    -1.2
Days Max >= 90      0               0.0     0.0
Days Max <= 32      0               0.0     0.0
Days Min <= 32      0               0.0     0.0
Days Min <= 0       0               0.0     0.0

Precipitation (inches)
Record
 Maximum         7.48   2014
 Minimum         1.08   1946
Totals           3.86              3.24    0.62
Daily Avg.       0.13              0.11    0.02
Days >= .01        23              15.8     7.2
Days >= .10        11               8.0     3.0
Days >= .50         2               2.0     0.0
Days >= 1.00        0               0.2    -0.2
Greatest
 24 Hr. Total    0.63   06/20 to 06/20

DEGREE_DAYS
HEATING TOTAL     341               315      26
 SINCE 7/1       8254              8345     -91
COOLING TOTAL       0                 1      -1
 SINCE 1/1          0                 1      -1

FREEZE DATES
EARLIEST                        10/02
LATEST                          05/06
..............................................................

Wind (mph)
Average Wind Speed              7.0
Highest Wind Speed/Direction    28/130    Date  06/19
Highest Gust Speed/Direction    37/120    Date  06/19


Weather Conditions. Number Of Days With
Thunderstorm              0     Mixed Precip               0
Heavy Rain                0     Rain                       3
Light Rain               26     Freezing Rain              0
Lt Freezing Rain          0     Hail                       0
Heavy Snow                0     Snow                       0
Light Snow                0     Sleet                      0
Fog                      21     Fog w/vis <= 1/4 mile      0
Haze                      0

-  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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