Climatological Report (Monthly)
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000
CXAK57 PAJK 011255
CLMAJK
Climate Report
NATIONAL WEATHER SERVICE JUNEAU, AK
454 AM AKDT TUE AUG 1 2017

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

...The JUNEAU climate summary for the month of July 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              90   07/07/1975
 Low               36   07/08/1950
Highest            73   07/06        78      -5
Lowest             44   07/15        43       1
                        07/06
Avg. Maximum     61.0              63.9    -2.9
Avg. Minimum     49.9              50.0    -0.1
Mean             55.5              56.9    -1.4
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        10.40   2015
 Minimum         1.15   1972
Totals           7.04              4.60    2.44
Daily Avg.       0.23              0.15    0.08
Days >= .01        20              17.7     2.3
Days >= .10        14              10.9     3.1
Days >= .50         7               2.9     4.1
Days >= 1.00        1               0.6     0.4
Greatest
 24 Hr. Total    1.01   07/02 to 07/02

Snowfall (inches)
Records
 Total            0.0   2002
 24 Hr Total      0.0   MM
 Snow Depth         0   MM
Totals            0.0               0.0     0.0
Since 7/1         0.0               0.0     0.0
Snowdepth Avg.      0                MM      MM
Days >= Trace       0               0.0     0.0
Days >= 1.0         0               0.0     0.0        0
Greatest
 Snow Depth         0   MM
 24 Hr Total      0.0   07/31 to 07/31

DEGREE_DAYS
HEATING TOTAL     289               251      38
 SINCE 7/1        289               251      38
COOLING TOTAL       0                 1      -1
 SINCE 1/1          0                 2      -2

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

Wind (mph)
Average Wind Speed              5.5
Highest Wind Speed/Direction    21/120    Date  07/01
Highest Gust Speed/Direction    27/140    Date  07/01


Weather Conditions. Number Of Days With
Thunderstorm              0     Mixed Precip               0
Heavy Rain                2     Rain                       8
Light Rain               27     Freezing Rain              0
Lt Freezing Rain          0     Hail                       0
Heavy Snow                0     Snow                       0
Light Snow                0     Sleet                      0
Fog                      23     Fog w/vis <= 1/4 mile      3
Haze                      0

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

$$
...A wet start to July with lack luster summertime temperatures...

The rainy weather at the end of June continued in a very strong
fashion for much of the month. In fact, some southeast locations met
or exceeded their normal July accumulated precipitation before the
middle of the month. Daily accumulations slacked off somewhat
towards the end of the month, but picked up again with record
setting rainfall over the southern panhandle the last weekend. This
resulted in near normal or slightly below normal monthly totals for
some locations. One notable exception was the Juneau area, which
remained well above normal from the beginning of the month and all
the way through to the end. As has been the case for many, many
months, the Yakutat area fell short of normal monthly accumulated
precipitation. Things there were near normal through the middle of
the month, but relatively dry weather for the second half of the
month left Yakutat with a 50 percent deficit for the month.

The lack of truly warm summer temperatures was hard to ignore and
July of 2017 was in many respects "the summer that wasn`t". The
mercury rose to above 70 degrees briefly towards the end of the
first week of the month over the northern panhandle...and that was
about it. The far northern inner channels experienced temps in the
70s twice; at the end of the first week and towards the end of the
second week. A large portion of the central and southern panhandle
never even got out of the 60s during all of July.

With the cool temperatures, flooding that typically occurs as a
result of high elevation snowmelt did not occur this July and not a
single flood warning was issued. Two glacial dam releases occurred
at Suicide Basin near Juneau. There were also releases on the Taku
River and the Salmon River near Hyder. None of these events resulted
in flooding.

$$



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