Climatological Report (Monthly)
Issued by NWS
Issued by NWS
941
CXAK57 PAJK 040631
CLMASI
NATIONAL WEATHER SERVICE JUNEAU AK
644 PM AKDT THU MAY 02 2024
...................................
...THE SITKA CLIMATE SUMMARY FOR THE MONTH OF APRIL 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 76 04/29/1976
LOW 20 04/02/1948
HIGHEST 65 04/18 60 5
04/19
LOWEST 32 04/03 29 3
04/11
04/15
AVG. MAXIMUM 50.6 48.1 2.5
AVG. MINIMUM 38.2 37.2 1.0
MEAN 44.4 42.6 1.8
DAYS MAX >= 90 0 0.0 0.0
DAYS MAX <= 32 0 0.0 0.0
DAYS MIN <= 32 3 4.6 -1.6
DAYS MIN <= 0 0 0.0 0.0
PRECIPITATION (INCHES)
RECORD
MAXIMUM 11.16 1961
MINIMUM 0.77 1948
TOTALS 4.31 4.31 0.00
DAILY AVG. 0.14 0.14 -0.00
DAYS >= .01 15 17.5 -2.5
DAYS >= .10 9 10.5 -1.5
DAYS >= .50 4 2.8 1.2
DAYS >= 1.00 1 0.5 0.5
GREATEST
24 HR. TOTAL 1.29 04/07 TO 04/08
DEGREE DAYS
HEATING TOTAL 612 670 -58
SINCE 7/1 5376 6239 -863
COOLING TOTAL 0 0 0
SINCE 1/1 0 0 0
FREEZE DATES
EARLIEST 10/08
LATEST 03/14
..............................................................
WIND (MPH)
AVERAGE WIND SPEED 7.1
HIGHEST WIND SPEED/DIRECTION 25/190 DATE 04/10
HIGHEST GUST SPEED/DIRECTION 39/180 DATE 04/07
WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM 0 MIXED PRECIP 0
HEAVY RAIN 2 RAIN 7
LIGHT RAIN 17 FREEZING RAIN 0
LT FREEZING RAIN 0 HAIL 0
HEAVY SNOW 0 SNOW 0
LIGHT SNOW 6 SLEET 4
FOG 13 FOG W/VIS <= 1/4 MILE 0
HAZE 11
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
$$
...A WARM, DRY, AND TRANQUIL APRIL ACROSS SOUTHEAST ALASKA...
A frontal system with a relatively decent tropical moisture fetch
moved through the area around the 5th, bringing the most appreciable
rainfall to the Panhandle. On that day, Juneau Airport set a new
daily rainfall record with 0.77 inches, breaking their previous
record of 0.72 inches, which was set back in 1955. A few relatively
quick-moving and weak frontal systems gave light and short lived
rain events and post frontal showers, primarily during the first
third to half of the month. During that timeframe, Southeast Alaska
received the vast majority of its precipitation.
There was primarily blocking high pressure in place around our
region, dominating the weather for most of the month, giving
decreased clouds, drier weather, and increased daytime high
temperatures from all of the excessive sunshine, which made the
monthly average temperatures across the Panhandle a bit above normal.
On the 19th, both Sitka and Yakutat Airports set records for high
temperatures. Sitka`s new record is 65, breaking their old record of
61, set in 2021. Yakutat`s new record is 64, which broke their old
record of 60, also set in 2021. On the 20th, Ketchikan, Sitka, and
Yakutat Airports broke high temperature records. Ketchikan`s new
record is 65, breaking their old record of 64, which was set back in
1934. Yakutat`s new record is 61, which broke their old record of
58, set back in 1989. Sitka`s new record is 63, breaking their old
record of 61, which was set back in 1978.
Additionally, Juneau International Airport received 0.2 inches of
snow accumulation on the 1st of the month and several traces after
that, before mid-month, primarily from isolated to scattered post-
frontal nocturnal snow showers.
Chambers
$$