Average Weather in Eastgate Washington, United States
In Eastgate, the summers are short, warm, and partly cloudy and the winters are very cold, wet, and mostly cloudy. Over the course of the year, the temperature typically varies from 36°F to 78°F and is rarely below 26°F or above 88°F.
Based on the tourism score, the best time of year to visit Eastgate for warm-weather activities is from mid July to late August.
The warm season lasts for 2.8 months, from June 21 to September 14, with an average daily high temperature above 72°F. The hottest day of the year is August 1, with an average high of 78°F and low of 59°F.
The cool season lasts for 3.6 months, from November 13 to March 1, with an average daily high temperature below 52°F. The coldest day of the year is December 23, with an average low of 36°F and high of 45°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
In Eastgate, the average percentage of the sky covered by clouds experiences significant seasonal variation over the course of the year.
The clearer part of the year in Eastgate begins around June 16 and lasts for 3.7 months, ending around October 7. On August 3, the clearest day of the year, the sky is clear, mostly clear, or partly cloudy 74% of the time, and overcast or mostly cloudy 26% of the time.
The cloudier part of the year begins around October 7 and lasts for 8.3 months, ending around June 16. On January 19, the cloudiest day of the year, the sky is overcast or mostly cloudy 74% of the time, and clear, mostly clear, or partly cloudy 26% 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 in Eastgate varies very significantly throughout the year.
The wetter season lasts 6.8 months, from October 9 to May 2, with a greater than 35% chance of a given day being a wet day. The chance of a wet day peaks at 60% on November 18.
The drier season lasts 5.2 months, from May 2 to October 9. The smallest chance of a wet day is 9% on August 5.
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 throughout the year is rain alone, with a peak probability of 59% on November 18.
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. Eastgate experiences extreme seasonal variation in monthly rainfall.
Rain falls throughout the year in Eastgate. The most rain falls during the 31 days centered around November 22, with an average total accumulation of 8.6 inches.
The least rain falls around July 30, with an average total accumulation of 0.7 inches.
Average Monthly Rainfall
The sliding 31-day liquid-equivalent quantity of snowfall in Eastgate does not vary significantly over the course of the year, staying within 0.1 inches of 0.1 inches throughout.
Average Liquid-Equivalent Monthly Snowfall
The length of the day in Eastgate varies significantly over the course of the year. In 2017, the shortest day is December 21, with 8 hours, 26 minutes of daylight; the longest day is June 20, with 15 hours, 59 minutes of daylight.
Hours of Daylight and Twilight
The earliest sunrise is at 5:10 AM on June 15, and the latest sunrise is 2 hours, 47 minutes later at 7:57 AM on November 4. The earliest sunset is at 4:17 PM on December 11, and the latest sunset is 4 hours, 53 minutes later at 9:10 PM on June 25.
Daylight saving time (DST) is observed in Eastgate during 2017, starting in the spring on March 12, lasting 7.8 months, and ending in the fall on November 5.
Sunrise & Sunset with Twilight and Daylight Saving Time
The perceived humidity level in Eastgate, 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 in Eastgate experiences mild seasonal variation over the course of the year.
The windier part of the year lasts for 6.1 months, from October 18 to April 20, with average wind speeds of more than 4.0 miles per hour. The windiest day of the year is December 4, with an average hourly wind speed of 5.3 miles per hour.
The calmer time of year lasts for 5.9 months, from April 20 to October 18. The calmest day of the year is August 2, with an average hourly wind speed of 2.7 miles per hour.
Average Wind Speed
The predominant average hourly wind direction in Eastgate varies throughout the year.
The wind is most often from the west for 2.0 weeks, from June 19 to July 3, with a peak percentage of 34% on June 20. The wind is most often from the north for 2.0 months, from July 3 to September 4, with a peak percentage of 39% on July 30. The wind is most often from the south for 9.5 months, from September 4 to June 19, with a peak percentage of 50% on January 1.
Eastgate 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 some seasonal variation over the course of the year.
The time of year with warmer water lasts for 3.1 months, from June 25 to September 28, with an average temperature above 54°F. The day of the year with the warmest water is August 19, with an average temperature of 56°F.
The time of year with cooler water lasts for 4.0 months, from December 11 to April 11, with an average temperature below 48°F. The day of the year with the coolest water is February 11, with an average temperature of 46°F.
Average Water Temperature
Best Time of Year to Visit
To characterize how pleasant the weather is in Eastgate 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 Eastgate for general outdoor tourist activities is from mid July to late August, with a peak score in the first week of August.
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 Eastgate for hot-weather activities is from mid July to mid August, with a peak score in the first week of August.
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 in Eastgate typically lasts for 8.5 months (262 days), from around March 3 to around November 20, rarely starting before February 9 or after April 1, and rarely ending before October 29 or after December 17.
Time Spent in Various Temperature Bands and the Growing Season
Based on growing degree days alone, the first spring blooms in Eastgate should appear around April 16, only rarely appearing before March 25 or after May 3.
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 3.2 months, from May 17 to August 23, with an average daily incident shortwave energy per square meter above 5.6 kWh. The brightest day of the year is July 21, with an average of 6.7 kWh.
The darker period of the year lasts for 3.8 months, from October 25 to February 18, with an average daily incident shortwave energy per square meter below 2.1 kWh. The darkest day of the year is December 24, with an average of 0.9 kWh.
Average Daily Incident Shortwave Solar Energy
For the purposes of this report, the geographical coordinates of Eastgate are 47.573 deg latitude, -122.146 deg longitude, and 285 ft elevation.
The topography within 2 miles of Eastgate contains very significant variations in elevation, with a maximum elevation change of 1,158 feet and an average elevation above sea level of 402 feet. Within 10 miles contains very significant variations in elevation (2,877 feet). Within 50 miles contains large variations in elevation (8,625 feet).
The area within 2 miles of Eastgate is covered by artificial surfaces (87%), within 10 miles by artificial surfaces (51%) and trees (27%), and within 50 miles by trees (54%) and artificial surfaces (13%).
This report illustrates the typical weather in Eastgate, 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
There are 4 weather stations near enough to contribute to our estimation of the temperature and dew point in Eastgate.
For each station, the records are corrected for the elevation difference between that station and Eastgate according to the International Standard Atmosphere , and by the relative change present in the MERRA-2 satellite-era reanalysis between the two locations.
The estimated value at Eastgate is computed as the weighted average of the individual contributions from each station, with weights proportional to the inverse of the distance between Eastgate and a given station.
The stations contributing to this reconstruction are: Renton Municipal Airport (50%, 10 kilometers, southwest); King County International Airport (40%, 13 kilometers, west); Snohomish County Airport (Paine Field) (9%, 39 kilometers, north); and Stampede Pass (1.5%, 69 kilometers, southeast).
Time zones for aiports and weather stations are provided by AskGeo.com .