000
NOAK48 PAFC 060400
PNSAFC
AKZ101-061600-

PUBLIC INFORMATION STATEMENT
NATIONAL WEATHER SERVICE ANCHORAGE AK
800 PM AKDT WED MAY 5 2021

...ANCHORAGE INTERNATIONAL AIRPORT CLIMATE HIGHLIGHTS FOR APRIL
2021...

...FIRST RECORD LOWS SET IN NEARLY 4 YEARS...
...3 RECORD LOWS SET...
...FIRST RECORD COLD HIGH TEMPERATURE SET IN 5.5 YEARS...
...MOST BELOW NORMAL DAILY AVERAGE TEMPERATURE SINCE JAN. 2020...
...19TH COLDEST APRIL...
...COLDEST APRIL SINCE 2013...
...6TH COLDEST MONTHLY LOW TEMPERATURE ON RECORD IN APRIL... 
...8TH COLDEST TEMPERATURE ON RECORD IN APRIL...
...9TH LATEST SINGLE DIGIT LOW...
...2ND EARLIEST 60 DEGREE TEMPERATURE ON RECORD...
...2ND GREATEST NUMBER OF 60 DEGREE TEMPERATURES ON RECORD (3)...
...5TH WARMEST MONTHLY HIGH TEMPERATURE ON RECORD IN APRIL...
...9TH WARMEST TEMPERATURE ON RECORD IN APRIL...
...15TH DRIEST APRIL...
...30TH LEAST SNOWIEST APRIL...
...9 CONSECUTIVE SNOW DEPTH RECORDS SET...

THE PERIOD OF RECORD INCLUDES 70 APRILS.

NOTE: THE COMPARISONS WITH NORMAL IN THIS WRITEUP REFER TO THE 
1981-2010 NORMALS. THE NEW 1991-2020 NORMALS WERE RELEASED ON MAY 
4TH, AND WILL BE USED WITH FUTURE CLIMATE HIGHLIGHTS.

*** IS USED TO HIGHLIGHT THE ROW THE RECORD SET IN APRIL 2021 CAN
 BE FOUND IN THE LISTS BELOW. 

...TEMPERATURE...

APRIL 2021 WAS THE 19TH COLDEST APRIL ON RECORD WITH AN AVERAGE 
TEMPERATURE OF 34.8 DEGREES. THIS IS 2.0 DEGREES BELOW THE NORMAL
OF 36.8 DEGREES.

THE AVERAGE HIGH IN APRIL WAS 44.2 DEGREES, WHICH WAS 0.3 DEGREES
BELOW THE NORMAL OF 44.5 DEGREES. THE AVERAGE LOW WAS 25.4 
DEGREES, WHICH WAS 3.7 DEGREES BELOW THE NORMAL OF 29.1 DEGREES.

APRIL 2021 WAS THE COLDEST APRIL SINCE 2013.

APRIL 2021 WAS THE 3RD CONSECUTIVE MONTH WITH BELOW AVERAGE 
MONTHLY TEMPERATURES.

13 DAYS IN APRIL HAD BELOW NORMAL TEMPERATURES. 
17 DAYS IN APRIL HAD ABOVE NORMAL TEMPERATURES.

7 DAYS IN APRIL WERE MORE THAN 5 DEGREES ABOVE THE DAILY NORMAL.
9 DAYS IN APRIL WERE MORE THAN 5 DEGREES BELOW THE DAILY NORMAL. 
0 DAYS IN APRIL WERE MORE THAN 10 DEGREES ABOVE THE DAILY NORMAL.
7 DAYS IN APRIL WERE MORE THAN 10 DEGREES BELOW THE DAILY NORMAL. 
4 DAYS IN APRIL WERE MORE THAN 15 DEGREES BELOW THE DAILY NORMAL.
2 DAYS IN APRIL WERE MORE THAN 20 DEGREES BELOW THE DAILY NORMAL.

THE MOST ABOVE NORMAL DAY IN APRIL OCCURRED ON THE 19TH, WHICH 
WAS 9.3 DEGREES WARMER THAN THE DAILY NORMAL.

THE MOST BELOW NORMAL DAY IN APRIL OCCURRED ON THE 10TH, WHICH WAS
21.6 DEGREES COLDER THAN THE DAILY NORMAL.

THE WARMEST DAILY HIGH IN APRIL OCCURRED ON THE 19TH, WHEN THE 
HIGH REACHED 61 DEGREES. THIS TIES MULTIPLE YEARS FOR THE 5TH 
WARMEST MONTHLY HIGH IN APRIL. THIS WAS THE WARMEST APRIL MONTHLY
HIGH SINCE 2005. THE NORMAL MONTHLY HIGH IN APRIL IS 55 DEGREES.

TOP 10 WARMEST MONTHLY HIGHS IN APRIL
-------------------------------------
1) 69 DEGREES- 2005.
2) 65 DEGREES- 1976.
3) 63 DEGREES- 1979.
4) 62 DEGREES- 1965.
5) 61 DEGREES- 2021, 2010, 2009, 1995, 1958. ***
10) 60 DEGREES- 2009, 1974.

THE 61 DEGREE HIGH ON THE 19TH WAS THE 2ND EARLIEST SPRING 60 
DEGREE TEMPERATURE ON RECORD, AND THE 9TH WARMEST HIGH IN APRIL ON
RECORD.

TOP 10 WARMEST DAILY HIGHS IN APRIL
-----------------------------------
1) 69 DEGREES- APRIL 29, 2005.
2) 67 DEGREES- APRIL 30, 2005.
3) 65 DEGREES- APRIL 28, 2005
   APRIL 30, 1976.
5) 63 DEGREES- APRIL 27, 2005
               APRIL 30, 1979.
7) 62 DEGREES- APRIL 28, 1979
   APRIL 16, 1965.- EARLIEST 60 DEGREE TEMP ON RECORD
9) 61 DEGREES- APRIL 19, 2021- 2ND EARLIEST 60 DEGREE TEMP ***
   APRIL 27, 2010.

THE COLDEST DAILY LOW IN APRIL OCCURRED ON THE 10TH WHEN THE LOW 
DROPPED TO 4 ABOVE, SETTING A DAILY RECORD LOW. THIS TIES 
MULTIPLE YEARS FOR THE 6TH COLDEST MONTHLY LOW IN APRIL. THIS WAS 
THE COLDEST APRIL MONTHLY LOW SINCE 2004. THE NORMAL MONTHLY LOW 
FOR APRIL IS 17 DEGREES.

TOP 10 COLDEST MONTHLY LOWS IN APRIL
------------------------------------ 
1) 4 BELOW- 1985. 
2) 1 ABOVE- 2004. 
3) 2 ABOVE- 1986, 1952.
5) 3 ABOVE- 1972.
6) 4 ABOVE- 2021. ***
7) 6 ABOVE- 2002, 1956.
9) 8 ABOVE- 2013.
10) 9 ABOVE- 1992, 1963, 1959.

THE 4 DEGREE LOW ON APRIL 10TH WAS THE 8TH COLDEST LOW TEMPERATURE ON
RECORD IN APRIL.

TOP 10 COLDEST DAILY LOWS IN APRIL
----------------------------------
1) 4 BELOW- APRIL 2, 1985.
2) 1 ABOVE- APRIL 1, 2004.
3) 2 ABOVE- APRIL 1, 1986, APRIL 1, 1985, APRIL 5, 1952.
6) 3 ABOVE- APRIL 1, 1972, APRIL 4, 1952.
8) 4 ABOVE- APRIL 10, 2021, APRIL 12, 1985. ***
10) 5 ABOVE- APRIL 7, 1986. 

THE 4 DEGREE LOW ON APRIL 10TH WAS THE 9TH LATEST SINGLE DIGIT LOW
TEMPERATURE ON RECORD.

TOP 10 LATEST SINGLE DIGIT LOWS IN APRIL
----------------------------------------
1) APRIL 19, 1959- 9 DEGREES.
2) APRIL 18, 1963- 9 DEGREES.
3) APRIL 14, 1985- 8 DEGREES.
4) APRIL 13, 1992- 9 DEGREES.
5) APRIL 12, 1985- 4 DEGREES, APRIL 12, 1992- 9 DEGREES.
7) APRIL 11, 1985- 5 DEGREES, APRIL 11, 2013- 8 DEGREES.
9) APRIL 10, 2021- 4 DEGREES, APRIL 10, 1985- 7 DEGREES. ***

APRIL HAD 3 DAYS WITH HIGHS OF 60 OR MORE. AVERAGE: 0 DAYS. 
APRIL HAD 13 DAYS WITH HIGHS OF 50 OR MORE. AVERAGE: 7 DAYS. 
APRIL HAD 20 DAYS WITH HIGHS OF 40 OR MORE. AVERAGE: 23 DAYS.
APRIL HAD 23 DAYS WITH HIGHS ABOVE FREEZING. AVERAGE: 28 DAYS.
(5TH FEWEST NUMBER OF DAYS WITH HIGHS ABOVE FREEZING ON RECORD) 

APRIL HAD 20 DAYS WITH LOWS BELOW FREEZING. AVERAGE: 19 DAYS. 
APRIL HAD 9 DAYS WITH LOWS OF 19 AND COLDER. AVERAGE: 3 DAYS. 
APRIL HAD 4 DAYS WITH LOWS OF 9 ABOVE AND COLDER. AVERAGE: 0 DAYS. 
(2ND GREATEST NUMBER OF DAYS WITH LOWS IN THE SINGLE DIGITS ON RECORD)

ON APRIL 8TH, THE FIRST RECORD LOW IN ANCHORAGE SINCE MAY 30, 2017
WAS SET, WITH 2 ADDITIONAL RECORDS FALLING ON THE SUBSEQUENT DAYS.

ON APRIL 9TH, A RECORD COLD HIGH TEMPERATURE (LOW MAXIMUM) RECORD
WAS SET. THIS WAS THE FIRST LOW MAXIMUM RECORD SET SINCE NOVEMBER
8, 2015.

JUST 9 DAYS AFTER THE APRIL 10TH RECORD LOW OF 4 DEGREES, A RECORD
HIGH OF 61 DEGREES WAS SET ON APRIL 19TH. THIS WAS THE FIRST
RECORD HIGH SET IN ANCHORAGE SINCE OCTOBER 3, 2020.

BETWEEN THE MAY 30, 2017 AND APRIL 8, 2021 RECORD LOWS, 101 RECORD
HIGHS WERE SET. 

...PRECIPITATION...

APRIL 2021 WAS THE 15TH DRIEST APRIL ON RECORD, WITH 0.17 INCHES 
OF PRECIPITATION MEASURED FOR THE MONTH. THE NORMAL PRECIPITATION 
IN APRIL IS 0.47 INCHES. THUS, APRIL HAD 36% OF ITS NORMAL 
PRECIPITATION.

THE WETTEST DAY IN APRIL WAS ON THE 29TH, WITH 0.08 INCHES OF 
PRECIPITATION MEASURED.

APRIL 2021 WAS THE DRIEST APRIL SINCE 2016.

9 OF 30 DAYS IN APRIL HAD A TRACE OR MORE OF PRECIPITATION. 
5 DAYS HAD MEASURABLE PRECIPITATION. 
0 DAYS HAD 1/10 INCH OR MORE OF PRECIPITATION.

...SNOWFALL...

APRIL 2021 WAS THE 30TH LEAST SNOWIEST APRIL ON RECORD WITH 1.9 INCHES
OF SNOW MEASURED DURING THE MONTH. THE NORMAL SNOW IN APRIL IS 
4.0 INCHES. THUS, APRIL HAD 48% OF ITS NORMAL SNOWFALL.

APRIL 2021 WAS THE LEAST SNOWIEST APRIL SINCE 2018.

THE SNOWIEST DAY IN APRIL 2021 OCCURRED ON THE 8TH, WHEN 1.6 INCHES
OF SNOW WERE MEASURED. ONLY APRIL 7TH HAD MEASURABLE SNOW WITH THE
MONTH'S REMAINING 0.3 INCHES FALLING, AND IT ALL FELL THAT DAY IN
THE EVENING HOURS JUST BEFORE MIDNIGHT. THUS, ALL 1.9 INCHES OF 
SNOW IN APRIL FELL IN A SINGLE STORM.

5 OF 30 DAYS IN APRIL RECORDED A TRACE OR MORE OF SNOWFALL. 
2 OF THOSE DAYS RECORDED MEASURABLE SNOWFALL. 
1 DAY RECORDED 1 INCH OR MORE OF SNOWFALL.

...SNOW DEPTH...

APRIL 2021 HAD THE 3RD DEEPEST AVERAGE SNOW DEPTH FOR APRIL, WITH
14.1 INCHES OF AVERAGE SNOW DEPTH MEASURED. THE AVERAGE SNOW DEPTH
IN A TYPICAL APRIL IS 3.9 INCHES. APRIL 2021 HAD THE DEEPEST
AVERAGE SNOW DEPTH OF ANY APRIL SINCE 2013.

TOP 5 DEEPEST AVERAGE SNOW DEPTHS IN APRIL
------------------------------------------ 
1) 15.8 INCHES- 2002 
2) 15.0 INCHES- 2013 
3) 14.1 INCHES- 2021 *** 
4) 12.8 INCHES- 2012 
5) 12.0 INCHES- 2004

APRIL 2021 SET 9 CONSECUTIVE SNOW DEPTH RECORDS FROM APRIL 8TH
THROUGH THE 16TH. THE MONTH HAD 10 SNOW DEPTH RECORDS IN TOTAL.
THE MONTH DID NOT SET THE RECORD FOR THE DEEPEST SNOW DEPTH IN 
APRIL (30 INCHES IN 2004). HOWEVER, IT CAME IN 2ND PLACE, TIED
WITH 2012 AND 2002.

TOP 5 DEEPEST DAILY SNOW DEPTHS IN APRIL
---------------------------------------- 
1) 30 INCHES- 2004.
2) 25 INCHES- 2021, 2012, 2002. ***
5) 24 INCHES- 2017.

THE LATEST 24 INCHES SNOW DEPTH ON RECORD WAS SET ON APRIL 12TH.

THE DAILY RECORD HIGH OF 61 DEGREES ON APRIL 19TH OCCURRED WITH 13
INCHES OF SNOW ON THE GROUND. THIS WAS THE FIRST TIME ON RECORD A
TEMPERATURE ABOVE 60 DEGREES WAS MEASURED WITH MORE THAN A FOOT OF
SNOW ON THE GROUND.

...SNOW SEASON...

69.7 INCHES OF SNOW HAVE BEEN MEASURED FOR THE SNOW SEASON 
THROUGH THE END OF APRIL. THE NORMAL IS 74.2 INCHES. THUS,
ANCHORAGE REMAINS 4.2 INCHES BELOW NORMAL FOR THE SNOW SEASON
SNOWFALL. ANCHORAGE HAS HAD 94% OF ITS NORMAL SNOW SEASON SNOWFALL
FOR THE YEAR.

SNOW SEASON 2020-2021 IS CURRENTLY THE MEDIAN SNOW SEASON. IT IS
THE 35TH SNOWIEST SNOW SEASON ON RECORD, AND THE 35TH LEAST
SNOWIEST SNOW SEASON ON RECORD. THIS IS DOWN 2 PLACES FROM THE 
END OF MARCH.

...APRIL 2021 VS. APRIL 2020...

APRIL 2021 WAS COLDER, MUCH DRIER, AND LESS SNOWY THAN APRIL 
2020.

TEMPERATURE: 34.8 DEGREES IN 2021 VS. 36.6 DEGREES IN 2020. 
PRECIPITATION: 0.17 INCHES IN 2021 VS. 0.97 INCHES IN 2020. 
SNOWFALL: 1.9 INCHES IN 2021 VS. 5.0 INCHES IN 2020. 
SNOW SEASON: 69.7 INCHES IN 2020-2021 VS. 88.6 INCHES IN 2019-2020.

...DAILY RECORDS SET IN APRIL 2021...

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

HIGH MAXIMUM....19TH...61 DEGREES...57 DEGREES (1965)
HIGH MAXIMUM....23RD...60 DEGREES...57 DEGREES (1977, 1956)

LOW MAXIMUM.....09TH...20 DEGREES...24 DEGREES (2013)
LOW MAXIMUM.....10TH...22 DEGREES...22 DEGREES (1985)

LOW MINIMUM.....08TH...09 DEGREES...10 DEGREES (1986)
LOW MINIMUM.....09TH...06 DEGREES...07 DEGREES (1986)
LOW MINIMUM.....10TH...04 DEGREES...07 DEGREES (1985)

SNOW DEPTH......06TH...23 INCHES....23 INCHES (2004, 2002)
SNOW DEPTH......08TH...24 INCHES....23 INCHES (2013, 2012)
SNOW DEPTH......09TH...24 INCHES....22 INCHES (2012)
SNOW DEPTH......10TH...24 INCHES....21 INCHES (2013, 2012, 2002)
SNOW DEPTH......11TH...24 INCHES....20 INCHES (2013, 2012, 2002)
SNOW DEPTH......12TH...24 INCHES....21 INCHES (1999)
SNOW DEPTH......13TH...22 INCHES....20 INCHES (2013, 2002, 1999)
SNOW DEPTH......14TH...20 INCHES....20 INCHES (2002)
SNOW DEPTH......15TH...19 INCHES....19 INCHES (2002)
SNOW DEPTH......16TH...18 INCHES....18 INCHES (2002)

...DAILY RECORDS COUNT FOR 2021 (CHANGE) [MOST RECENT PREVIOUS]...

HIGH MAXIMUM....2 (+2) [APRIL 23, 2021] 
HIGH MINIMUM....0 (00) [OCTOBER 7, 2020] 
LOW MAXIMUM.....2 (+2) [APRIL 10, 2021] 
LOW MINIMUM.....3 (+3) [APRIL 10, 2021] 
PRECIPITATION...2 (00) [MARCH 1, 2021] 
SNOWFALL........0 (00) [DECEMBER 19, 2020]
SNOW DEPTH......10 (+10) [APRIL 16, 2021] 

...CLIMATE HIGHLIGHTS FOR MAY 2021...

NORMAL HIGH: 56.0 DEGREES. 
NORMAL TEMPERATURE: 47.8 DEGREES.
NORMAL LOW: 39.6 DEGREES. 
NORMAL PRECIPITATION: 0.72 INCHES.
NORMAL SNOWFALL: 0.3 INCHES.

WARMEST MAY: 52.5 DEGREES AVERAGE TEMPERATURE (2014). 
WARMEST DAY: 77 DEGREES ON MAY 21, 2002. 
COLDEST MAY: 41.1 DEGREES AVERAGE TEMPERATURE (1964). 
COLDEST DAY: 17 DEGREES ON MAY 10, 1964. 
WETTEST MAY: 2.18 INCHES (2019). 
WETTEST DAY: 0.97 INCHES ON MAY 30, 1980. 
DRIEST MAY: 0.02 INCHES (1957). 
SNOWIEST MAY: 6.1 INCHES (2001). 
LEAST SNOWIEST MAY: 0 INCHES (MANY). 
SNOWIEST DAY: 5.0 INCHES ON MAY 3, 2001.

...CALENDAR OF ASTRONOMY AND FEDERAL HOLIDAYS...

BEGINNING OF THE MONTH DAYLIGHT: 16 HOURS 16 MINUTES.
THIRD QUARTER MOON: MAY 3RD AT 11:50AM.
17 HOURS OF DAYLIGHT: MAY 9TH.
NEW MOON: MAY 11TH AT 10:59AM.
LAST DAY GAINING MORE THAN 5 MINUTES OF DAYLIGHT PER DAY: MAY 16TH.
FIRST QUARTER MOON: MAY 19TH AT 11:12AM.
FIRST SUNRISE BEFORE 5AM: MAY 20TH.
18 HOURS OF DAYLIGHT: MAY 21ST.
FIRST SUNSET AFTER 11PM: MAY 23RD.
FULL MOON: MAY 26TH AT 3:13AM. (SUPER FLOWER BLOOD MOON)
SUPER MOON: MOON CLOSE TO PERIGEE.
FLOWER MOON: THE FULL MOON OF MAY.
BLOOD MOON: TOTAL LUNAR ECLIPSE OF THE MOON.
TOTAL LUNAR ECLIPSE: MAY 26TH.
PARTIAL ECLIPSE BEGINS: 1:44AM.
TOTAL ECLIPSE BEGINS: 3:11AM.
TOTAL ECLIPSE ENDS: 3:25AM.
PARTIAL ECLIPSE ENDS: 4:52AM.
LAST DAY GAINING MORE THAN 4 MINUTES OF DAYLIGHT PER DAY: MAY 28TH.
END OF THE MONTH DAYLIGHT: 18 HOURS 42 MINUTES.
TOTAL MONTHLY DAYLIGHT GAIN: 2 HOURS 26 MINUTES.

NEXT ECLIPSE VIEWABLE IN ANCHORAGE AFTER THE MAY 2021 ECLIPSE: 
PARTIAL LUNAR ECLIPSE- NOVEMBER 18-19, 2021 AT 12:02AM NOV. 19TH.

$$

WEGMAN

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