000
NOAK48 PAFC 030244
PNSAFC
AKZ101-050300-

PUBLIC INFORMATION STATEMENT
NATIONAL WEATHER SERVICE ANCHORAGE AK
544 PM AKST THU JAN 2 2020

...ANCHORAGE INTERNATIONAL AIRPORT CLIMATE HIGHLIGHTS FOR DECEMBER
2019...

...WARMEST YEAR ON RECORD...
...11TH WARMEST DECEMBER...
...31ST DRIEST DECEMBER...
...21ST SNOWIEST DECEMBER...
...22ND CONSECUTIVE MONTH WITH ABOVE NORMAL TEMPERATURES...
...26TH LEAST SNOWIEST SNOW SEASON THROUGH THE END OF DECEMBER...

THE PERIOD OF RECORD INCLUDES 68 DECEMBERS.

...TEMPERATURE...

DECEMBER 2019 WAS THE 11TH WARMEST DECEMBER ON RECORD WITH AN
AVERAGE TEMPERATURE OF 24.5 DEGREES. THIS IS 5.5 DEGREES ABOVE THE
NORMAL OF 19.0 DEGREES.

DECEMBER 2019 WAS THE 22ND CONSECUTIVE MONTH THAT ENDED ABOVE 
NORMAL FOR THE MONTH.

THE AVERAGE HIGH IN DECEMBER 2019 WAS 30.2 DEGREES, WHICH IS 5.4
DEGREES ABOVE THE NORMAL OF 24.8 DEGREES. THE AVERAGE LOW IN
DECEMBER 2019 WAS 18.9 DEGREES, WHICH IS 5.7 DEGREES ABOVE THE
NORMAL OF 13.2 DEGREES.

20 DAYS IN DECEMBER HAD ABOVE NORMAL TEMPERATURES.
9 DAYS IN DECEMBER HAD BELOW NORMAL TEMPERATURES.
2 DAYS IN DECEMBER HAS NORMAL TEMPERATURES (WITHIN 1/2 DEGREE).

1 DAY IN DECEMBER WAS MORE THAN 20 DEGREES ABOVE NORMAL.
13 DAYS IN DECEMBER WERE MORE THAN 10 DEGREES ABOVE NORMAL.
2 DAYS IN DECEMBER WERE MORE THAN 10 DEGREES BELOW NORMAL. 

THE MOST ABOVE NORMAL DAY IN DECEMBER WAS ON THE 9TH, WHICH WAS
23.5 DEGREES ABOVE THE DAILY NORMAL. THE MOST BELOW NORMAL DAY WAS
ON THE 22ND, WHICH WAS 14.2 DEGREES BELOW NORMAL.

THE WARMEST MONTHLY HIGH ON RECORD IN DECEMBER WAS 51 DEGREES, WHICH
OCCURRED ON THE 9TH. THIS SET A NEW RECORD FOR THE WARMEST MONTHLY
HIGH, AS IT WAS THE FIRST TIME ON RECORD WITH A HIGH ABOVE 50 
DEGREES IN DECEMBER. THE AVERAGE MONTHLY HIGH IN DECEMBER IS 41
DEGREES.

TOP 5 WARMEST MONTHLY HIGHS IN DECEMBER
------------------------------------------
1) 51 DEGREES- DECEMBER 9, 2019.
2-5) 48 DEGREES- DECEMBER 9, 2005; DECEMBER 26, 1999; 
 DECEMBER 1-2, 1992.

THE COLDEST MONTHLY LOW TEMPERATURE ON RECORD IN DECEMBER WAS 2
BELOW SET ON THE 22ND. THIS TIES 2006 AND 2002 FOR THE 16TH 
WARMEST MONTHLY LOW TEMPERATURE. THE NORMAL MONTHLY LOW 
TEMPERATURE IN DECEMBER IS 10 BELOW.

THE LOW OF 2 BELOW ON THE 22ND WAS THE 7TH LATEST FIRST BELOW ZERO
TEMPERATURE ON RECORD.

TOP 7 LATEST FIRST BELOW ZERO TEMPERATURES ON RECORD
-----------------------------------------------------
1) NEVER BELOW ZERO- WINTER 2000-2001.
2) FEBRUARY 2, 2018.
3) JANUARY 25, 2015.
4) JANUARY 11, 2005.
5) JANUARY 6, 2019.
6) DECEMBER 27, 2002.
7) DECEMBER 22, 2019.

...PRECIPITATION...

DECEMBER 2019 WAS THE 31ST DRIEST DECEMBER ON RECORD, WITH 0.98
INCHES OF PRECIPITATION RECORDED DURING THE MONTH. THE NORMAL
PRECIPITATION FOR DECEMBER IS 1.11 INCHES. THUS, DECEMBER HAD 88
PERCENT OF ITS NORMAL PRECIPITATION DURING THE MONTH.

THIS WAS THE FIRST BELOW NORMAL MONTH IN THIS STREAK, AS LAST
MONTH'S PRECIPITATION WAS ABOVE NORMAL.

THE WETTEST DAY IN DECEMBER OCCURRED ON THE 24TH, WHEN 0.19 INCHES
FELL.

21 OF 31 DAYS IN DECEMBER HAD A TRACE OR MORE OF PRECIPITATION.
14 DAYS HAD MEASURABLE PRECIPITATION.
4 DAYS HAD 1/10 INCH OR MORE OF PRECIPITATION.

...SNOWFALL AND SNOW SEASON...

DECEMBER 2019 WAS THE 21ST SNOWIEST DECEMBER ON RECORD WITH 20.2
INCHES OF SNOW MEASURED DURING THE MONTH. THE NORMAL DECEMBER SNOW
IS 16.7 INCHES.

THE SNOWIEST DAY IN DECEMBER OCCURRED ON THE 19TH, WITH 5.0 INCHES
OF SNOW MEASURED.

16 OF 31 DAYS IN DECEMBER RECORDED A TRACE OR MORE OF SNOW.
13 DAYS IN DECEMBER HAD MEASURABLE SNOW.
7 DAYS IN DECEMBER HAD AN INCH OR MORE OF SNOW.
4 DAYS IN DECEMBER HAD TWO INCHES OR MORE OF SNOW.
3 DAYS IN DECEMBER HAD THREE INCHES OR MORE OF SNOW.

THROUGH THE END OF DECEMBER, 31.2 INCHES OF SNOW HAVE BEEN
MEASURED DURING SNOW SEASON 2019-2020. THE NORMAL SNOW THROUGH THE
END OF DECEMBER IS 38.1 INCHES. THUS, THERE HAS BEEN 82 PERCENT OF
THE NORMAL SNOW SEASON SNOWFALL THROUGH THE END OF DECEMBER. THE
SNOW SEASON DEFICIT IS 6.9 INCHES.

THIS IS THE 26TH LEAST SNOWIEST SNOW SEASON THROUGH THE END OF
DECEMBER. THIS IS UP 4 PLACES SINCE THE END OF NOVEMBER.

...DECEMBER 2019 VS. DECEMBER 2018...

DECEMBER 2019 WAS COOLER, MUCH DRIER, AND LESS SNOWY THAN DECEMBER
2018.

TEMPERATURE: 24.5 DEGREES IN 2019 VS. 25.6 DEGREES IN 2018.
PRECIPITATION: 0.98 INCHES IN 2019 VS. 2.43 INCHES IN 2018.
SNOWFALL: 20.2 INCHES IN 2019 VS. 32.6 INCHES IN 2018.
SNOW SEASON: 31.2 INCHES IN 2019-2020 VS. 37.8 INCHES IN 2018-2019.

...DAILY RECORDS SET IN DECEMBER 2019...

TYPE............DATE...NEW RECORD...OLD RECORD (YEAR)

HIGH MAXIMUM....08TH...46 DEGREES...45 DEGREES (2006)
HIGH MAXIMUM....09TH...51 DEGREES...48 DEGREES (2005)
HIGH MAXIMUM....14TH...45 DEGREES...41 DEGREES (1988, 1967)
HIGH MAXIMUM....31ST...46 DEGREES...44 DEGREES (2018)

HIGH MINIMUM....09TH...35 DEGREES...33 DEGREES (1986, 1963, 1960)

SNOWFALL........24TH...5.0 INCHES...4.2 INCHES (2002)

NOW LOW TEMPERATURE NOR PRECIPITATION RECORDS WERE SET IN 
DECEMBER 2019.

...FINAL DAILY RECORDS COUNT FOR 2019 (CHANGE)...

HIGH MAXIMUM....33 (+4)
HIGH MINIMUM....47 (+1)
LOW MAXIMUM......0
LOW MINIMUM......0
PRECIPITATION....7
SNOWFALL.........4 (+1)

...ANNUAL CLIMATE STATISTICS FOR 2019...

2019 WAS THE WARMEST YEAR ON RECORD IN ANCHORAGE WITH AN AVERAGE
TEMPERATURE OF 42.5 DEGREES. ALL 5 OF THE WARMEST YEARS ON RECORD
OCCURRED IN THE LAST 6 YEARS.

TOP 5 WARMEST YEARS ON RECORD
------------------------------ 
1) 42.5 DEGREES- 2019 
2) 41.5 DEGREES- 2016 
3,4) 40.5 DEGREES- 2018 
 40.5 DEGREES- 2014 
5) 39.9 DEGREES- 2015

NOTE: THE ONE MISSING YEAR FROM THE ABOVE LIST, 2017, HAD AN 
AVERAGE TEMPERATURE OF 37.6 DEGREES, MAKING IT THE 22ND WARMEST 
YEAR ON RECORD.

2019 WAS THE 22ND DRIEST YEAR ON RECORD WITH A TOTAL MEASURED
PRECIPITATION OF 14.56 INCHES. THE AVERAGE ANNUAL PRECIPITATION IN
ANCHORAGE IS 15.98 INCHES.

...CLIMATE HIGHLIGHTS FOR JANUARY 2020...

AVERAGE HIGH: 23.1 DEGREES
AVERAGE TEMPERATURE: 17.1 DEGREES- COLDEST MONTH
AVERAGE LOW: 11.1 DEGREES
AVERAGE PRECIPITATION: 0.73 INCHES
AVERAGE SNOWFALL: 11.3 INCHES

...CALENDAR OF ASTRONOMY AND HOLIDAYS...

BEGINNING OF THE MONTH DAYLIGHT: 5 HOURS 39 MINUTES.
NEW YEAR'S DAY: JANUARY 1ST.
FIRST QUARTER MOON: JANUARY 2ND AT 7:45PM.
PERIHELION (EARTH CLOSEST TO THE SUN): JANUARY 4TH AT 10:47PM.
FIRST SUNSET AFTER 4PM: JANUARY 6TH.
FIRST DAY WITH MORE THAN 6 HOURS OF DAYLIGHT: JANUARY 9TH.
PENUMBRAL LUNAR ECLIPSE: JANUARY 10TH.
 BEGINS: 8:07AM
MAXIMUM ECLIPSE: 10:10AM (NW SKY- LOOK TOWARDS SLEEPING LADY)
MOONSET: 10:27AM
FULL MOON (WOLF MOON): JANUARY 10TH AT 10:21AM.
SUNRISE AT 10AM: JANUARY 13TH.
THIRD QUARTER MOON: JANUARY 17TH AT 3:58AM.
MARTIN LUTHER KING JR DAY: JANUARY 20TH.
7 HOURS OF DAYLIGHT: JANUARY 23RD.
NEW MOON: JANUARY 24TH AT 12:42PM.
FIRST SUNSET AFTER 5PM: JANUARY 30TH.
END OF THE MONTH DAYLIGHT: 7 HOURS 41 MINUTES.
TOTAL MONTHLY DAYLIGHT GAIN: 2 HOURS 2 MINUTES.

$$

WEGMAN

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