This report describes the typical weather at the Merrill Field (Anchorage, Alaska, United States) weather station over the course of an average June. It is based on the historical records from 1976 to 2012. Earlier records are either unavailable or unreliable.
Anchorage, Alaska has a continental climate with short dry cool summers. The area within 25 mi of this station is covered by forests (43%), oceans and seas (31%), tundra (18%), and shrublands (5%).
The month of June is characterized by rising daily high temperatures, with daily highs increasing from 61°F to 66°F over the course of the month, exceeding 73°F or dropping below 55°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 18:48 hours of daylight; the longest day is June 21 with 19:25 hours of daylight.
The earliest sunrise is at 4:19am on June 19; the latest sunset is at 11:44pm on June 21; the latest sunrise is at 4:35am on June 1; the earliest sunset is at 11:23pm 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 is 92% (mostly cloudy) and does not vary substantially over the course of the month.
On June 15, a representative day, the sky is clear or mostly clear 19% of the time, partly cloudy 9% of the time, and mostly cloudy or overcast 71% of the time.
The probability that precipitation will be observed at this location varies throughout the month. Precipitation is most likely around June 30, occurring in 52% of days. Precipitation is least likely around June 2, occurring in 45% of days.
Throughout June, the most common forms of precipitation are light rain.
Light rain is the most severe precipitation observed during 83% of those days with precipitation. It is most likely around June 30, when it is observed during 43% of all days.
The likelihood of snow falling is highest around June 1, occurring in 5% of days.
Either snow rarely accumulates at this location in June or snow depth measurements are unavailable or unreliable.
The relative humidity typically ranges from 45% (comfortable) to 86% (very humid) over the course of a typical June, rarely dropping below 29% (dry) and reaching as high as 100% (very humid).
The air is driest around June 1, at which time the relative humidity drops below 50% (mildly humid) three days out of four; it is most humid around June 29, rising above 79% (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 35°F (dry) to 51°F (very comfortable) and is rarely below 29°F (dry) or above 55°F (very comfortable).
Over the course of June typical wind speeds vary from 0 mph to 11 mph (calm to gentle breeze), rarely exceeding 16 mph (moderate breeze).
The highest average wind speed of 5 mph (light breeze) occurs around June 4, at which time the average daily maximum wind speed is 11 mph (gentle breeze).
The lowest average wind speed of 5 mph (light breeze) occurs around June 30, at which time the average daily maximum wind speed is 10 mph (gentle breeze).