944
CXAK57 PAJK 061417
CLMASI
NATIONAL WEATHER SERVICE JUNEAU AK
246 AM AKDT FRI OCT 04 2024

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

...THE SITKA CLIMATE SUMMARY FOR THE MONTH OF SEPTEMBER 2024...

CLIMATE NORMAL PERIOD: 1991 TO 2020
CLIMATE RECORD PERIOD: 1944 TO 2024

WEATHER         OBSERVED          NORMAL  DEPART   LAST YEAR`S
                VALUE   DATE(S)   VALUE   FROM     VALUE
                                          NORMAL
..............................................................
TEMPERATURE (F)
RECORD
 HIGH             77   09/05/1986
                       09/04/1986
 LOW              31   09/26/1956
HIGHEST           62   09/08         67      -5
                       09/10
                       09/11
LOWEST            44   09/27         40       4
AVG. MAXIMUM    58.7               57.9     0.8
AVG. MINIMUM    50.9               48.5     2.4
MEAN            54.8               53.2     1.6
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       20.59   1987
 MINIMUM        3.55   2018
TOTALS          9.85              11.69   -1.84
DAILY AVG.      0.33               0.39   -0.06
DAYS >= .01       21               22.4    -1.4
DAYS >= .10       18               17.5     0.5
DAYS >= .50        8                8.4    -0.4
DAYS >= 1.00       2                3.2    -1.2
GREATEST
 24 HR. TOTAL   1.34   09/12 TO 09/13


DEGREE DAYS
HEATING TOTAL    302                354     -52
 SINCE 7/1       711                857    -146
COOLING TOTAL      0                  0       0
 SINCE 1/1         1                  1       0

FREEZE DATES
EARLIEST                        10/08
LATEST                          03/14
..............................................................

WIND (MPH)
AVERAGE WIND SPEED              6.8
HIGHEST WIND SPEED/DIRECTION    32/090    DATE  09/30
HIGHEST GUST SPEED/DIRECTION    47/090    DATE  09/30


WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM              0     MIXED PRECIP               0
HEAVY RAIN                8     RAIN                      16
LIGHT RAIN               23     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      1
HAZE                     12

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

$$

...ABOVE NORMAL TEMPERATURES AND BELOW NORMAL PRECIPITATION FOR
SOUTHEAST ALASKA FOR SEPTEMBER...

For the most part, we had typical Southeast Alaska Autumn rainforest
weather for the month of September. We had a some Atmospheric Rivers
move over the area that, luckily, didn`t stick around for too long.
Earlier on in the month, the northern Panhandle was more impacted by
them. The moisture plumes that moved in during the last half of the
month impacted the southern Panhandle more.

September was a bit drier and warmer along the Outer Coast than the
other portions of the Panhandle. As for precipitation, Juneau
Airport was only 0.14 inches below normal. Sitka Airport was 1.84
inches below normal. Ketchikan Airport was only 0.6 inches below
normal, and Yakutat Airport was 4 inches below normal for the month.
As for temperatures, Juneau Airport was only 0.1 degrees above
normal. Sitka Airport was 1.6 degrees above normal. Ketchikan
Airport was only 0.4 degrees above normal, and Yakutat Airport was
1.3 degrees above normal for the month.

Not that we really use the October through September Water Year in
Alaska, but, interestingly, the Juneau Airport finished it as the
4th wettest with about 72 inches in total.

Chambers
$$