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Public Information Statement - River Forecast Center 

Anchorage


799
NOAK48 PAFC 020115
PNSAFC
AKZ101-021315-

Public Information Statement
National Weather Service Anchorage AK
515 PM AKDT Sun Sep 1 2019

...Anchorage International Airport Climate Highlights for August
2019...

...Warmest August on Record...
...Driest August on Record...
...All-Time Warmest Daily Record Low Temperature Tied Twice...
...3rd Warmest Month on Record...

The period of record includes 67 Augusts.

...Temperature...

August 2019 was the warmest August on record with an average
temperature of 62.6 degrees. This is 5.9 degrees above the normal
of 56.7 degrees.

Top 5 Warmest Augusts on Record (By Average Temperature)
------------------------------
1) 62.6 degrees- 2019
2) 61.2 degrees- 2004
3) 60.5 degrees- 2016
4) 60.2 degrees- 1977
5) 59.8 degrees- 1978

August 2019 was also the 3rd warmest month on record.

Top 6 Warmest Months on Record (By Average Temperature)
-----------------------------------------
1) 65.3 degrees- July 2019
2) 62.7 degrees- July 2016
3) 62.6 degrees- August 2019
4) 62.5 degrees- July 1977
5,6) 62.2 degrees- July 2013 & July 2003

August 2019 was the 18th consecutive month that ended above
average for the month.

The average high in August 2019 was 71.4 degrees, which is 7.9
degrees above the normal of 63.5 degrees. The average low in
August 2019 was 53.9 degrees, which is 3.9 degrees above the
normal of 50.0 degrees.

The only other August to have an average high above 70 degrees was
in 2004, which had an average high of 70.4 degrees.

28 days in August had above normal temperatures.
3 days in August had normal temperatures (within 1/2 degree).

The last day with a daily average temperature that was below
normal occurred on May 30th.

The most above normal day in August 2019 occurred on the 13th,
which was 12.4 degrees above the daily normal. The least above
normal day was exactly normal for the date, on the 21st.

The warmest high temperature in August 2019 occurred six times
during the month. The high reached 77 degrees on the on the 7th,
10th, 11th, 12th, 13th, and 15th. This ties multiple years for the
8th warmest monthly high temperature. The normal monthly high
temperature in August is 73 degrees.

There were 33 cooling degree days (defined as the number of
degrees each day that the average temperature was above 65
degrees) in August 2019. That more than quadruples the previous
record for August of 8 cooling degree days set in 2015. The
average number of cooling degree days in a typical August is 1.

August 2019 set a new record for the most 75 degree or warmer
high temperatures on record, at 12 days. The previous record is 8
days set in 2004.

Top 5 Greatest Number of 75 degree highs in any month on record
---------------------------------------------------------------
1) 14 days- July 2019
2) 12 days- August 2019
3) 8 days- August 2004
4,5) 7 days- July 1993, July 1953

August 2019 had the second greatest number of 70 degrees and
warmer high temperatures in August on record, with 17 days
reaching that threshold. The first place year was in 2004 at 18
days.

August 2019 had the fifth greatest number of 70 degrees and warmer
high temperatures of any month on record.

Top 5 Greatest Number of 70 degree highs in any month on record
---------------------------------------------------------------
1) 20 days- July 2019
2,3) 19 days- July 2013 & July 1977
4) 18 days- August 2004
5) 17 days- August 2019

For annual records, 2019 is well in first place for both parameters.

Top 5 Greatest Annual Number of 75 degree days
---------------------------------------------
1) 31 days- 2019
2) 15 days- 2015
3) 14 days- 2004
4) 13 days- 2013
5) 12 days- 1993, 1953

Top 5 Greatest Annual Number of 70 degree days
---------------------------------------------
1) 49 days- 2019
2) 42 days- 2013
3) 40 days- 2004
4) 39 days- 2015
5) 35 days- 2016

The coolest monthly low temperature in August 2019 was 45 degrees,
which occurred on the 24th. This was the 5th warmest monthly low
temperature in August on record.

Top 11 Warmest Monthly Low Temperatures In August
-------------------------------------------------
1-4) 46 degrees- 2017, 2004, 1999, 1992
5-11) 45 degrees- 2019, 2010, 2007, 2003, 2001, 1995, 1977

The all-time warmest daily low temperature record was tied twice
in August 2019.

Top 9 All-Time Warmest Low Temperatures on Record
-------------------------------------------------
1-3) 63 degrees- August 14, 2019,
August 13, 2019,
July 10, 2005
4-9) 62 degrees- July 9, 2019,
August 5, 2018,
July 7, 2018
July 19, 2016
July 15, 2003
August 10, 1994

With an average temperature of 70.0 degrees, August 13th was the
10th warmest day on record in Anchorage by average temperature,
and the warmest August day on record.

Of the top 10 warmest August days on record by average
temperature, 5 of them occurred in August 2019.

Top 10 warmest August days on record (by average temperature)
------------------------------------
1) 70.0 degrees- August 13, 2019
2) 69.5 degrees- August 2, 1978
3) 69.0 degrees- August 14, 2019
August 7, 2019
5) 68.5 degrees- August 9, 2013
August 6, 1968
7) 68.0 degrees- August 15, 2019
August 21, 1977
9) 67.5 degrees- August 4, 2015
10) 67.0 degrees- August 9, 2019

The 2nd longest streak of consecutive days of lows of 50 degrees
and warmer ended in August 2019.

Top 5 Longest Streaks of Consecutive Days of Lows 50 Degrees and
Warmer
-------------------------------
1) 79 days- June 13- August 30, 2016
2) 59 days- June 21- August 18, 2019
3) 53 days- June 23- August 14, 2013
4) 49 days- June 24- August 11, 2015
5) 41 days- July 16- August 25, 2014

Through the end of August, 2019 is in 4th place for most days of
lows 50 degrees and warmer in a year

Top 5 Most Days with Lows 50 degrees and Warmer in a Year
------------------------------------
1) 87 days- 2016
2) 79 days- 1977
3) 77 days- 2013
4) 76 days- 2019
5) 74 days- 2004

...Precipitation...

August 2019 was the driest August on record with 0.04 inches of
rain falling during the month. August is climatologically the
wettest month of the year for Anchorage, with a normal
precipitation of 3.25 inches.
Thus, August received just 1.2 percent of its normal rain.

This was the 3rd consecutive month ending with below normal
precipitation.

The wettest day in August 2019 occurred yesterday when 0.02 inches
of rain fell. The other 2 days with 0.01 inches were on the 25th
and the 30th.

8 days in August had a trace or more of precipitation of which 3
had measurable precipitation.

Top 5 Driest Augusts on Record
-----------------------------
1) 0.04 inches- 2019
2) 0.33 inches- 1969
3) 0.43 inches- 1987
4) 0.54 inches- 1978
5) 0.69 inches- 1968

August 2019 was the 14th driest of any month on record in Anchorage.

Of the 4 climatologically wettest months (July through October),
all of which are normally have at least a half inch of
precipitation more than the other 8 months, August 2019 was still
the driest month on record:

Top 5 Driest Months of those that are climatologically the wettest
------------------------------------------------------------------
1) 0.04 inches- August 2019
2) 0.33 inches- August 1969
3) 0.35 inches- October 1960
4) 0.42 inches- July 1972
5) 0.43 inches- October 2010, August 1987

...August 2019 vs. August 2018...

August 2019 was much warmer and drier than August 2018.

Temperature: 62.6 degrees in 2019 vs. 58.3 degrees in 2018.
Precipitation: 0.04 inches in 2019 vs. 3.67 inches in 2018.

...Daily Records Set in August 2019...

Type...........Date...New Record...Old Record (Year)

High Maximum...07th...77 degrees...77 degrees (2015)
High Maximum...10th...77 degrees...75 degrees (2004, 1972, 1960)
High Maximum...12th...77 degrees...77 degrees (2005)
High Maximum...13th...77 degrees...75 degrees (2007, 1977, 1963)
High Maximum...14th...75 degrees...74 degrees (1990)
High Maximum...15th...77 degrees...76 degrees (1984)

High Minimum...07th...61 degrees...58 degrees (1983, 1979)
High Minimum...13th...63 degrees...57 degrees (2003)
High Minimum...14th...63 degrees...58 degrees (2001)
High Minimum...16th...58 degrees...58 degrees (1967)
High Minimum...17th...57 degrees...56 degrees (1984, 1979, 1977)

No low temperature nor precipitation records were set in August 2019.

...Daily Records Count For 2019 (Change)...

High Maximum....26 (+6)
High Minimum....30 (+5)
Low Maximum.....0
Low Minimum.....0
Precipitation...4
Snowfall........2

...Climate Highlights for September 2019...

Average High: 55.1 degrees
Average Low: 42.0 degrees
Average Temp: 48.6 degrees
Average Precipitation: 2.99 inches
Average Snowfall: 0.4 inches

...Calendar of Astronomy and Holidays...

Beginning of the Month Daylight: 14 hours 15 minutes
Last Sunset after 9pm: September 2nd
Labor Day Holiday: September 2nd
Last Day with More than 14 Hours of Daylight: September 3rd
First Sunrise After 7am: September 5th
First Quarter Moon: September 5th at 7:10pm
Full Moon (Harvest Moon): September 13th at 8:32pm
Last Day with more than 13 Hours of Daylight: September 14th
Third Quarter Moon: September 21st at 6:40pm
Last Sunset After 8pm: September 21st
Autumnal Equinox: September 22nd at 11:50pm
Last Day with More than 12 Hours of Daylight: September 24th
Autumnal Equilux: September 25th
New Moon: September 28th at 10:26am
Sunrise at 8am: September 29th
End of the Month Daylight: 11 hours 31 minutes
Total Monthly Daylight Loss: 2 hours 44 minutes

$$

Wegman


Fairbanks

Juneau


795
NOAK47 PAJK 112027
PNSAJK
AKZ027>029-120100-

Public Information Statement
National Weather Service Juneau AK
1227 PM AKDT Wed Sep 11 2019

...KETCHIKAN NOAA RADIO TRANSMITTER DOWN FOR MAINTENANCE...

The Ketchikan radio transmitter will be down for maintenance from
1:30 pm to around 4 pm AKDT Wednesday September 11 2019.

$$