This report describes the typical weather at the Skagway Airport (Skagway, Alaska, United States) weather station over the course of an average June. It is based on the historical records from 1996 to 2012. Earlier records are either unavailable or unreliable.
Skagway, Alaska has a continental climate with dry warm summers. The area within 25 mi of this station is covered by tundra (90%), oceans and seas (6%), and lakes and rivers (2%).
The month of June is characterized by gradually rising daily high temperatures, with daily highs around 62°F throughout the month, exceeding 72°F or dropping below 53°F only one day in ten.
Over the course of June, the length of the day is essentially constant. The shortest day of the month is June 1 with 18:11 hours of daylight; the longest day is June 15 with 18:40 hours of daylight.
The earliest sunrise is at 3:42am on June 15; the latest sunset is at 10:24pm on June 25; the latest sunrise is at 3:54am on June 2; the earliest sunset is at 10:05pm on June 1.
Daylight savings time is observed in 2012 but it neither starts nor ends in June, so the entire month is in daylight time.
The median cloud cover ranges from 82% (mostly cloudy) to 90% (mostly cloudy). The trend is for the sky to be becoming cloudier with the median cloud cover increasing by 7% from the start to the end of the month.
On June 15, a representative day, the sky is clear or mostly clear 32% of the time, partly cloudy 4% of the time, and mostly cloudy or overcast 58% of the time.
The average probability that some form of precipitation will be observed in a given day is 45%, with little variation over the course of the month.
Throughout June, the most common forms of precipitation are light rain and moderate rain.
Light rain is the most severe precipitation observed during 83% of those days with precipitation. It is most likely around June 28, when it is observed during 39% of all days.
Moderate rain is the most severe precipitation observed during 14% of those days with precipitation. It is most likely around June 29, when it is observed during 7% of all days.
Either snow is exceptionally unlikely to fall at this location in June or this station does not reliably report precipitation types.
The relative humidity typically ranges from 51% (mildly humid) to 89% (very humid) over the course of a typical June, rarely dropping below 35% (comfortable) and reaching as high as 98% (very humid).
The air is driest around June 1, at which time the relative humidity drops below 59% (mildly humid) three days out of four; it is most humid around June 30, rising above 84% (humid) three days out of four.
Dew point is often a better measure of how comfortable a person will find the weather than relative humidity because it more directly relates to whether perspiration will evaporate from the skin, thereby cooling the body. Lower dew points feel drier and higher dew points feel more humid.
Over the course of a typical June, the dew point typically varies from 39°F (dry) to 51°F (very comfortable) and is rarely below 35°F (dry) or above 55°F (very comfortable).
Over the course of June typical wind speeds vary from 0 mph to 20 mph (calm to fresh breeze), rarely exceeding 26 mph (strong breeze).
The highest average wind speed of 10 mph (gentle breeze) occurs around June 17, at which time the average daily maximum wind speed is 20 mph (fresh breeze).
The lowest average wind speed of 10 mph (gentle breeze) occurs around June 1, at which time the average daily maximum wind speed is 20 mph (fresh breeze).