Climateby Month

Skagway, AK weather in September

NOAA 1991-2020 normals and daily records · Skagway all year

Expect cool weather with rain on most days in Skagway in September, with highs near 57°F and lows near 46°F. Rain falls on about 17 days. Pack rain gear.

Normal high
57°F
Normal low
46°F
Wet days
17
3.9 in total
Muggy days
0
dew point 65°F+

How September changes from start to finish

Normal values at the start and end of September
September 1September 30
Normal high60°F54°F
Normal low49°F44°F
Chance of a wet day57%57%
Sunrise / sunset5:58 am / 8:04 pm7:04 am / 6:38 pm
Daylight14.1 h11.6 h

Chance of a wet day: average for the first and last 7 days of the month. Times are local clock time (Alaska Time).

What kind of days to expect

  • Comfortable dayshigh 65-80°F and dew point under 60°F2 of 30
  • Hot dayshigh 90°F or more0 of 30
  • Muggy daysdaily mean dew point 65°F or more0 of 30
  • Wet daysat least 0.01 in of rain or melted snow17 of 30
  • Notable rainat least 0.10 in9 of 30
  • Freezing nightslow 32°F or below0 of 30
  • Snow on the groundsnow depth 1 in or more0 of 30

Average days per September, counted from daily records for each year 1991-2020.

Rain in September

Normal precipitation is 3.9 in; a dry September brings about 3.2 in and a wet one about 4.7 in (25th and 75th percentiles). About 2 days bring half an inch or more, and about 1 an inch or more.

How September varies from year to year

  • Warmest September, 1991-20202018: average high 62°F
  • Coolest September1999: average high 54°F
  • Wettest September2011: 6.5 in
  • Driest September2018: 0.9 in
  • Highest reading75°F (September 10, 2018)
  • Lowest reading28°F (September 30, 1996)

From the station's daily records with NOAA quality flags removed; most recent date shown when a reading repeats.

September compared with August and October

AugustSeptemberOctober
Normal high63°F57°F48°F
Normal low51°F46°F39°F
Wet days151717
Comfortable days1020
Daylight15.5 h12.8 h10.2 h

Highs change by -6°F from August and -9°F into October.

How Skagway ranks in September

  • Normal high373rd warmest of 378 cities; 3rd of 8 in Alaska
  • Wet days370th driest of 378
  • Comfortable days253rd most of 342

What to pack for Skagway in September

  • A rain jacket or umbrella – rain on about 17 days

Heating and cooling

September has 404 heating degree days and 0 cooling degree days (base 65°F), 5% of the year's total heating and cooling demand.

Questions

How cold is Skagway in September?

The normal high is 57°F and the normal low is 46°F. From 1991 to 2020 the coldest September reading was 28°F (September 30, 1996).

Does it rain a lot in Skagway in September?

About 17 days in September have at least 0.01 in of precipitation, and the normal total is 3.9 in. The wettest September in 1991-2020 was in 2011 (6.5 in); the driest was in 2018 (1.0 in).

Is September a good time to visit Skagway?

September ranks 6th of 12 months on our comfort score for Skagway (50 out of 100). It has about 2 comfortable days. The best months are June and July.

Where the numbers come from

  • Temperature, rain and frost dates: Skagway Airport (USW00025335), 0.4 mi WSW of the city center, 20 ft . NOAA normals and daily records, 1991-2020.
  • Snowfall and snow depth: Skagway (USC00508525), 0.2 mi S of the city center, 35 ft . NOAA normals and daily records, 1991-2020.
  • Daily humidity and wind: Skagway Airport (703620-25335), 0.6 mi WSW of the city center, 24 ft . Hourly observations, 1991-2020.
  • Not available for this location: humidity and wind by hour and cloud cover (no station close enough or similar enough in elevation).