Average Weather at Scammon Bay Airport Alaska, United States
At Scammon Bay Airport, the summers are cool; the winters are long, frigid, snowy, and windy; and it is overcast year round. Over the course of the year, the temperature typically varies from 2°F to 58°F and is rarely below -18°F or above 68°F.
Based on the tourism score, the best time of year to visit Scammon Bay Airport for warm-weather activities is from early July to early August.
The warm season lasts for 3.4 months, from June 5 to September 16, with an average daily high temperature above 50°F. The hottest day of the year is July 20, with an average high of 58°F and low of 49°F.
The cold season lasts for 4.5 months, from November 22 to April 5, with an average daily high temperature below 23°F. The coldest day of the year is January 20, with an average low of 2°F and high of 15°F.
Average High and Low Temperature
The figure below shows you a compact characterization of the entire year of hourly average temperatures. The horizontal axis is the day of the year, the vertical axis is the hour of the day, and the color is the average temperature for that hour and day.
Average Hourly Temperature
At Scammon Bay Airport, the average percentage of the sky covered by clouds experiences mild seasonal variation over the course of the year.
The clearer part of the year at Scammon Bay Airport begins around August 11 and lasts for 2.7 months, ending around November 2. On October 6, the clearest day of the year, the sky is clear, mostly clear, or partly cloudy 38% of the time, and overcast or mostly cloudy 62% of the time.
The cloudier part of the year begins around November 2 and lasts for 9.3 months, ending around August 11. On January 9, the cloudiest day of the year, the sky is overcast or mostly cloudy 80% of the time, and clear, mostly clear, or partly cloudy 20% of the time.
Cloud Cover Categories
A wet day is one with at least 0.04 inches of liquid or liquid-equivalent precipitation. The chance of wet days at Scammon Bay Airport varies throughout the year.
The wetter season lasts 3.2 months, from June 30 to October 4, with a greater than 25% chance of a given day being a wet day. The chance of a wet day peaks at 36% on August 15.
The drier season lasts 8.9 months, from October 4 to June 30. The smallest chance of a wet day is 13% on March 24.
Among wet days, we distinguish between those that experience rain alone, snow alone, or a mixture of the two. Based on this categorization, the most common form of precipitation at Scammon Bay Airport changes throughout the year.
Rain alone is the most common for 6.1 months, from April 27 to October 30. The highest chance of a day with rain alone is 36% on August 15.
Snow alone is the most common for 5.9 months, from October 30 to April 27. The highest chance of a day with snow alone is 18% on January 2.
Daily Chance of Precipitation
To show variation within the months and not just the monthly totals, we show the rainfall accumulated over a sliding 31-day period centered around each day of the year. Scammon Bay Airport experiences significant seasonal variation in monthly rainfall.
The rainy period of the year lasts for 6.4 months, from May 1 to November 14, with a sliding 31-day rainfall of at least 0.5 inches. The most rain falls during the 31 days centered around August 21, with an average total accumulation of 2.8 inches.
The rainless period of the year lasts for 5.6 months, from November 14 to May 1. The least rain falls around March 21, with an average total accumulation of 0.1 inches.
Average Monthly Rainfall
We report snowfall in liquid-equivalent terms. The actual depth of new snowfall is typically between 5 and 10 times the liquid-equivalent amount, assuming the ground is frozen. Colder, drier snow tends to be on the higher end of that range and warmer, wetter snow on the lower end.
As with rainfall, we consider the snowfall accumulated over a sliding 31-day period centered around each day of the year. Scammon Bay Airport experiences significant seasonal variation in monthly liquid-equivalent snowfall.
The snowy period of the year lasts for 7.6 months, from October 1 to May 19, with a sliding 31-day liquid-equivalent snowfall of at least 0.1 inches. The most snow falls during the 31 days centered around December 28, with an average total liquid-equivalent accumulation of 1.0 inches.
The snowless period of the year lasts for 4.4 months, from May 19 to October 1. The least snow falls around July 29, with an average total liquid-equivalent accumulation of 0.0 inches.
Average Liquid-Equivalent Monthly Snowfall
The length of the day at Scammon Bay Airport varies extremely over the course of the year. In 2018, the shortest day is December 21, with 5 hours, 13 minutes of daylight; the longest day is June 21, with 19 hours, 40 minutes of daylight.
Hours of Daylight and Twilight
The earliest sunrise is at 5:13 AM on June 19, and the latest sunrise is 6 hours, 12 minutes later at 11:25 AM on December 26. The earliest sunset is at 4:35 PM on December 16, and the latest sunset is 8 hours, 19 minutes later at 12:54 AM on June 22.
Daylight saving time (DST) is observed at Scammon Bay Airport during 2018, starting in the spring on March 11, lasting 7.8 months, and ending in the fall on November 4.
Sunrise & Sunset with Twilight and Daylight Saving Time
The perceived humidity level at Scammon Bay Airport, as measured by the percentage of time in which the humidity comfort level is muggy, oppressive, or miserable, does not vary significantly over the course of the year, remaining a virtually constant 0% throughout.
Humidity Comfort Levels
The average hourly wind speed at Scammon Bay Airport experiences significant seasonal variation over the course of the year.
The windier part of the year lasts for 7.0 months, from September 22 to April 21, with average wind speeds of more than 12.9 miles per hour. The windiest day of the year is February 11, with an average hourly wind speed of 16.3 miles per hour.
The calmer time of year lasts for 5.0 months, from April 21 to September 22. The calmest day of the year is June 30, with an average hourly wind speed of 9.5 miles per hour.
Average Wind Speed
The predominant average hourly wind direction at Scammon Bay Airport varies throughout the year.
The wind is most often from the north for 1.1 weeks, from January 12 to January 20; for 1.7 weeks, from February 4 to February 16; for 4.1 months, from February 22 to June 26; and for 3.6 months, from August 20 to December 7, with a peak percentage of 46% on March 23. The wind is most often from the east for 2.1 weeks, from January 20 to February 4; for 6.0 days, from February 16 to February 22; and for 1.2 months, from December 7 to January 12, with a peak percentage of 41% on January 27. The wind is most often from the south for 1.3 months, from June 26 to August 5 and for 5.0 days, from August 15 to August 20, with a peak percentage of 32% on July 29.
Scammon Bay Airport is located near a large body of water (e.g., ocean, sea, or large lake). This section reports on the wide-area average surface temperature of that water.
The average water temperature experiences significant seasonal variation over the course of the year.
The time of year with warmer water lasts for 2.3 months, from July 9 to September 20, with an average temperature above 48°F. The day of the year with the warmest water is August 16, with an average temperature of 52°F.
The time of year with cooler water lasts for 6.4 months, from November 8 to May 21, with an average temperature below 35°F. The day of the year with the coolest water is December 28, with an average temperature of 30°F.
Average Water Temperature
Best Time of Year to Visit
To characterize how pleasant the weather is at Scammon Bay Airport throughout the year, we compute two travel scores.
The tourism score favors clear, rainless days with perceived temperatures between 65°F and 80°F. Based on this score, the best time of year to visit Scammon Bay Airport for general outdoor tourist activities is from early July to early August, with a peak score in the last week of July.
The beach/pool score favors clear, rainless days with perceived temperatures between 75°F and 90°F. Based on this score, the best time of year to visit Scammon Bay Airport for hot-weather activities is from mid July to early August, with a peak score in the last week of July.
For each hour between 8:00 AM and 9:00 PM of each day in the analysis period (1980 to 2016), independent scores are computed for perceived temperature, cloud cover, and total precipitation. Those scores are combined into a single hourly composite score, which is then aggregated into days, averaged over all the years in the analysis period, and smoothed.
Our cloud cover score is 10 for fully clear skies, falling linearly to 9 for mostly clear skies, and to 1 for fully overcast skies.
Our precipitation score, which is based on the three-hour precipitation centered on the hour in question, is 10 for no precipitation, falling linearly to 9 for trace precipitation, and to 0 for 0.04 inches of precipitation or more.
Our tourism temperature score is 0 for perceived temperatures below 50°F, rising linearly to 9 for 65°F, to 10 for 75°F, falling linearly to 9 for 80°F, and to 1 for 90°F or hotter.
Our beach/pool temperature score is 0 for perceived temperatures below 65°F, rising linearly to 9 for 75°F, to 10 for 82°F, falling linearly to 9 for 90°F, and to 1 for 100°F or hotter.
The growing season at Scammon Bay Airport typically lasts for 4.0 months (124 days), from around May 28 to around September 30, rarely starting before May 11 or after June 14, and rarely ending before September 15 or after October 15.
Time Spent in Various Temperature Bands and the Growing Season
Based on growing degree days alone, the first spring blooms at Scammon Bay Airport should appear around July 11, only rarely appearing before June 25 or after August 9.
Growing Degree Days
The average daily incident shortwave solar energy experiences extreme seasonal variation over the course of the year.
The brighter period of the year lasts for 3.0 months, from April 22 to July 22, with an average daily incident shortwave energy per square meter above 4.2 kWh. The brightest day of the year is June 5, with an average of 5.2 kWh.
The darker period of the year lasts for 4.2 months, from October 15 to February 22, with an average daily incident shortwave energy per square meter below 1.1 kWh. The darkest day of the year is December 21, with an average of 0.1 kWh.
Average Daily Incident Shortwave Solar Energy
For the purposes of this report, the geographical coordinates of Scammon Bay Airport are 61.845 deg latitude, -165.580 deg longitude, and 10 ft elevation.
The topography within 2 miles of Scammon Bay Airport contains very significant variations in elevation, with a maximum elevation change of 1,096 feet and an average elevation above sea level of 220 feet. Within 10 miles also contains very significant variations in elevation (1,608 feet). Within 50 miles contains very significant variations in elevation (2,388 feet).
The area within 2 miles of Scammon Bay Airport is covered by shrubs (43%), herbaceous vegetation (28%), and water (17%), within 10 miles by herbaceous vegetation (35%) and shrubs (34%), and within 50 miles by water (54%) and herbaceous vegetation (23%).
This report illustrates the typical weather at Scammon Bay Airport, based on a statistical analysis of historical hourly weather reports and model reconstructions from January 1, 1980 to December 31, 2016.
Temperature and Dew Point
Scammon Bay Airport has a weather station that reported reliably enough during the analysis period that we have included it in our network. When available, historical temperature and dew point measurements are taken directly from this weather station. These records are obtained from NOAA's Integrated Surface Hourly data set, falling back on ICAO METAR records as required.
In the case of missing or erroneous measurements from this station, we fall back on records from nearby stations, adjusted according to typical seasonal and diurnal intra-station differences. For a given day of the year and hour of the day, the fallback station is selected to minimize the prediction error over the years for which there are measurements for both stations.
The stations on which we may fall back include but are not limited to Chevak Airport, Cape Romanzof LRRS Airport, Hooper Bay Airport, Toksook Bay Airport, Emmonak Airport, Mekoryuk Airport, Mountain Village Airport, and St. Mary's Airport.
Time zones for aiports and weather stations are provided by AskGeo.com .