Public Information Statement
Issued by NWS Anchorage, AK

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NOAK48 PAFC 050014
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Public Information Statement
National Weather Service Anchorage AK
414 PM AKDT Fri Sep 4 2020

...Anchorage International Airport Climate Highlights for August
2020...

...8th Warmest August...
...20th Wettest August...
...Warmest Monthly High Temperature since 2015...

The period of record includes 69 Augusts.

...Temperature...

August 2020 tied 1993 & 1979 for the 8th warmest August on record
with an average temperature of 58.8 degrees. This is 2.1 degrees
above the normal of 56.7 degrees.

The average high in August was 65.5 degrees, which was 2.0 degrees
above the normal of 63.5 degrees. The average low was 52.2
degrees, which was 2.2 degrees above the normal of 50.0 degrees.

August 2020 had the coolest average temperature in August since
2018.

20 days in August had above average temperatures.
8 days in August had normal temperatures (within 1/2 degree).
3 days in August had below average temperatures.

There were 2 days in August that were more than 5 degrees warmer
than their respective daily normals.
There weren`t any days in August 2020 that were more than 5
degrees colder than there respective daily normals.

The most above normal day in August occurred on the 16th, which
was 8.5 degrees warmer than the daily normal. The most below
normal day in August occurred on the 28th, which was 1.4 degrees
cooler than the daily normal.

The warmest daily high in August 2020 occurred on the 15th, when
the high reached 78 degrees. This was the 8th warmest monthly high
temperature in August. The average monthly high in August is 73
degrees. This was the warmest monthly high temperature in August
since 2015.

The coldest daily low temperature in August 2020 occurred on the
28th, when the low temperature reached 44 degrees. This ties
multiple years for the 12th warmest monthly low temperature in
August. The average monthly low in August is 41 degrees. This was
the coolest monthly low since 2018.

August had 6 days with highs in the 70s.
The average number of highs in the 70s is 4.
August had 28 days with highs in the 60s. The average number of
highs in the 60s is 25.
August had 6 days with lows in the 40s. The average number of days
with lows in the 40s is 13.

There have been 22 days with highs in the 70s in 2020 so far. This
was the 15th greatest number of 70 degree days on record. The
normal number of days with highs in the 70s through the end of
August is 16.

...Precipitation...

August 2020 tied 2002 and 1984 for the 20th wettest August on
record, with a total monthly sum precipitation of 3.21 inches. The
normal precipitation in August, the climatological wettest month,
is 3.25 inches. Thus, August 2020 had 99 percent of its normal
precipitation.

August 2020 ended 3 consecutive months of significantly below
normal precipitation.

The wettest day in August 2020 was on the 9th, with 0.63 inches of
precipitation measured.

24 of 31 days in August had a trace or more of precipitation.
17 days had measurable precipitation.
8 days had 1/10 inch or more of precipitation.
6 days had 1/4 inch or more of precipitation.
3 days had 1/2 inch or more of precipitation.

The total annual precipitation in 2020 through the end of August
is 10.86 inches. 2020 remains the 16th wettest year on record so
far, unchanged in place since the end of July. The average
precipitation through the end of August is 9.04 inches.

...Snow Season...

Snow season 2020-2021 began on July 1st. No measurable snow has
ever been recorded in August at Anchorage International Airport.
August 31, 1997 was the only day to ever report a trace of snow
in August.

...August 2020 vs. August 2019...

August 2020 was much cooler and much wetter than August 2019.

Temperature: 58.8 degrees in 2020 vs. 62.6 degrees in 2019.
Precipitation: 3.21 inches in 2020 vs. 0.04 inches in 2019.

...Daily Records Set in August 2020...

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

High Maximum....15th...78 degrees...77 degrees (2019)

High Minimum....18th...56 degrees....56 degrees (2020, 2013, 1989)
High Minimum....23rd...58 degrees....57 degrees (1989, 1977)
High Minimum....24th...56 degrees....56 degrees (2016)

Precipitation...09th...0.63 inches...0.62 inches (2013)

...Daily Records Count for 2020 (Change) [Most Recent Previous]...

High Maximum....2 (+1) [August 15, 2020]
High Minimum....6 (+3) [August 24, 2020]
Low Maximum.....0 [November 18, 2015]
Low Minimum.....0 [May 30, 2017]
Precipitation...5 (+1) [August 9, 2020]
Snowfall........5 [March 8, 2020]

...Climate Highlights for September 2020...

Normal High: 55.1 degrees.
Normal Temperature: 48.6 degrees.
Normal Low: 42.0 degrees.
Normal Precipitation: 2.99 inches.
Normal Snowfall: 0.4 inches.

Warmest September: 55.0 degrees average temperature (2018).
Warmest Day: 73 degrees on September 5, 1957.
Coolest September: 40.3 degrees average temperature (1992).
Coolest Day: 19 degrees on September 24, 1992.
Wettest September: 7.70 inches (2015).
Wettest Day: 1.56 inches on September 29, 2015.
Driest September: 0.63 inches (2011).

Average First Night in the 30s: September 1st.
Average Last 60 degree Day: September 17th.
Average First Freeze: September 26th.
Average First Night in the 20s: September 30th.

Earliest First Measurable Snow of the Season: September 21, 1996.

...Calendar of Astronomy and Holidays...

Beginning of the Month Daylight: 14 hours 10 minutes.
Full (Corn) Moon: September 1st at 9:22pm.
Sunset at 9pm: September 2nd.
Last Day with More than 14 Hours of Daylight: September 2nd.
Sunrise @ 7am: September 4th.
Labor Day Holiday: September 7th.
Third Quarter Moon: September 10th at 1:25am.
Last Day with More than 13 Hours of Daylight: September 13th.
New Moon: September 17th at 3am.
Sunset at 8pm: September 21st.
Autumnal Equinox: September 22nd at 5:30am.
First Quarter Moon: September 23rd at 5:54pm.
12 Hours of Daylight/Autumnal Equilux: September 24th.
Sunrise & Sunset at 7:50.
Sunrise at 8am: September 28th.
End of the Month Daylight: 11 hours 26 minutes.
Total Monthly Daylight Loss: 2 hours 44 minutes.

$$

Wegman


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