Climatological Report (Monthly)
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000
CXAK57 PAJK 011434
CLMAJK

Climate Report
NATIONAL WEATHER SERVICE JUNEAU, AK
538 AM AKDT MON AUG 1 2016

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

...The JUNEAU climate summary for the month of July 2016...

Climate normal period 1981 to 2010
Climate record period 1936 to 2016

Weather         Observed          Normal  Depart
                 Value   Date(s)  Value   From
                                          Normal
................................................
Temperature (F)
Record
 High              90   07/07/1975
 Low               36   12/31/1999
Highest            82   07/18        78       4
Lowest             47   07/03        43       4
Avg. Maximum     65.7              63.9     1.8
Avg. Minimum     53.7              50.0     3.7
Mean             59.7              56.9     2.8
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           4.28              4.60   -0.32
Daily Avg.       0.14              0.15   -0.01
Days >= .01        16              17.7    -1.7
Days >= .10        12              10.9     1.1
Days >= .50         2               2.9    -0.9
Days >= 1.00        1               0.6     0.4
Greatest
 24 Hr. Total    1.00   07/23 to 07/23

Snowfall (inches)
Records
 Total            0.0
 24 Hr Total      0.0
 Snow Depth         0
Totals            0.0               0.0     0.0
Since 7/1         0.0               0.0     0.0
Snowdepth Avg.      0               0.0     0.0

Days >= Trace       0               0.0     0.0
Days >= 1.0         0               0.0     0.0
Greatest
 Snow Depth         0
 24 Hr Total      0.0

DEGREE_DAYS
HEATING TOTAL     162               251     -89
 SINCE 7/1        162               251     -89
COOLING TOTAL       5                 1       4
 SINCE 1/1          7                 2       5

FREEZE DATES
EARLIEST                        09/30
LATEST                          05/12
.................................................

Wind (mph)
Average Wind Speed              7.4
Highest Wind Speed/Direction    30/110    Date  07/23
Highest Gust Speed/Direction    40/120    Date  07/23


Weather Conditions. Number Of Days With
Thunderstorm              0     Mixed Precip               0
Heavy Rain                2     Rain                       6
Light Rain               24     Freezing Rain              0
Lt Freezing Rain          0     Hail                       0
Heavy Snow                0     Snow                       0
Light Snow                0     Sleet                      0
Fog                      17     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.

$$

...Slightly above normal temps and below normal precip for July...

July 2016 featured above normal temperatures in Juneau once again. As
has been the case in the past and as expected by current trends in
climate change, the above normal values were more a result of warmer
than normal overnight lows rather than daytime highs. One daily high
temperature record was tied when, on the 18th of the month, the
temperature reached 82 degrees. this tied the previous record from
1947. No record low temperatures were set and this is not surprising
considering the overall trend in overnight lows being above normal.
Large diurnal spreads were observed for the first three weeks of the
month. Between the 21st and the 27th, however, very little variability
was observed and this period of time corresponded to a somewhat rainy
portion of the month.

The month began with above normal precipitation, with nearly three
quarters of an inch of rain in the first two days. Accumulated
precipitation then trended well below normal, with less than a quarter
inch of rain falling between the 2nd and the 20th. Beginning with the
third week of the month, significant rainfall occurred for 9 days in a
row and accounted for nearly 80 percent of the rain for the month. In
spite of this wet ending to the month, Juneau finished July right
around 7 percent below normal for accumulated precipitation. This
stands in stark contrast to last year, which was the wettest July on
record with 10.4 inches of rain recorded at the airport.

The third week of the month was also quite windy relative to the rest
of July. A peak wind of 30 mph with peaks gusts to 40 mph occurred on
the 23rd of the month, the same day that the airport recorded an even
1.0 inches of rainfall.

$$

Fritsch



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