Climatological Report (Monthly)
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000
CXAK57 PAJK 011327
CLMAJK
CLIMATE REPORT
NATIONAL WEATHER SERVICE JUNEAU, AK
509 AM AKDT TUE MAY 1 2018

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

...THE JUNEAU CLIMATE SUMMARY FOR THE MONTH OF APRIL 2018...

CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1936 TO 2018

WEATHER         OBSERVED          NORMAL  DEPART  LAST YEAR`S
                 VALUE   DATE(S)  VALUE   FROM    VALUE
                                          NORMAL
.............................................................
TEMPERATURE (F)
RECORD
 HIGH              74   04/26/2003
 LOW                6   04/05/1963
HIGHEST            58   04/11        60      -2
LOWEST             19   04/01        24      -5
AVG. MAXIMUM     47.8              48.4    -0.6
AVG. MINIMUM     32.0              33.3    -1.3
MEAN             39.9              40.8    -0.9
DAYS MAX >= 90      0               0.0     0.0
DAYS MAX <= 32      0               0.0     0.0
DAYS MIN <= 32     15              11.1     3.9
DAYS MIN <= 0       0               0.0     0.0

PRECIPITATION (INCHES)
RECORD
 MAXIMUM         7.48   1999
 MINIMUM         0.27   1948
TOTALS           3.15              2.94    0.21
DAILY AVG.       0.11              0.10    0.01
DAYS >= .01        14              17.0    -3.0
DAYS >= .10         6               8.6    -2.6
DAYS >= .50         1               1.2    -0.2
DAYS >= 1.00        1               0.2     0.8
GREATEST
 24 HR. TOTAL    1.02   04/23 TO 04/23

SNOWFALL (INCHES)
RECORDS
 TOTAL           46.3   1963
 24 HR TOTAL     20.5   04/01/1963 TO 04/02/1963
 SNOW DEPTH        33   04/04/1963
TOTALS            0.0               1.1    -1.1
SINCE 7/1        77.3              86.7    -9.4
SNOWDEPTH AVG.      0                 0       0
DAYS >= TRACE       0               1.3    -1.3
DAYS >= 1.0         0               0.3    -0.3        0
GREATEST
 SNOW DEPTH         0
 24 HR TOTAL      0.0

DEGREE_DAYS
HEATING TOTAL     744               724      20
 SINCE 7/1       7859              7528     331
COOLING TOTAL       0                 0       0
 SINCE 1/1          0                 0       0

FREEZE DATES
EARLIEST                        10/03
LATEST                          05/07
..............................................................

WIND (MPH)
AVERAGE WIND SPEED              8.3
HIGHEST WIND SPEED/DIRECTION    36/110    DATE  04/19
HIGHEST GUST SPEED/DIRECTION    45/110    DATE  04/19


WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM              0     MIXED PRECIP               0
HEAVY RAIN                0     RAIN                       0
LIGHT RAIN               17     FREEZING RAIN              0
LT FREEZING RAIN          0     HAIL                       0
HEAVY SNOW                0     SNOW                       0
LIGHT SNOW                0     SLEET                      0
FOG                      13     FOG W/VIS <= 1/4 MILE      1
HAZE                      1

-  INDICATES NEGATIVE NUMBERS.
R  INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T  INDICATES TRACE AMOUNT.

$$
...April 2018 provides some relief from excessively dry conditions...

In what is normally one of the driest months of the year for
Southeast Alaska, April brought some relief from the multi-month
precipitation deficit that the region has endured since late
January. While the entire Panhandle is still listed as abnormally
dry in the United States Drought Monitor, the southern half of the
Panhandle has improved from moderate drought conditions in the
latest release dated April 26th.

The lack of precipitation witnessed earlier this year continued into
the first half of April for much of the panhandle. The exception was
the southern zones, where precipitation slowly but steadily
accumulated beginning early in the month. On April 17th, an abrupt
shift to a significantly wetter weather pattern occurred and all of
Southeast Alaska began seeing meaningful accumulations that
surpassed the normal trend for April. By the end of the month, the
southern portions of the panhandle recorded above normal totals for
the month. Juneau ended the month ever so slightly above normal,
while the central outer coast and northeast gulf coast remained
slightly below normal for the month. Many daily precipitations were
broken on March 23rd across most of the panhandle. Total
accumulations for the year-to-date are still decidedly below normal
however, and, as indicated above, all of Southeast Alaska remains
abnormally dry.

Daytime highs for the first half of the month trended warmer than
normal from the second week through the middle of the month and
numerous high temperature records were broken during this time. Fair
skies also allowed overnight lows to dip below normal at times,
though not as consistently as the above normal highs.

As the 2017-2018 snow season draws to a close, the general trend for
accumulated snow appears to have followed the total precipitation
pattern and finished below normal. Specifics and details regarding
snowfall are hard to pinpoint due to a lack of stations that report
snow in some cases and a lack of 30-year normals for other stations.

$$



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