Average Weather in Salmon Creek Washington, United States
In Salmon Creek, the summers are short, warm, dry, and mostly clear and the winters are very cold, wet, and overcast. Over the course of the year, the temperature typically varies from 35°F to 83°F and is rarely below 25°F or above 95°F.
Based on the tourism score, the best time of year to visit Salmon Creek for warm-weather activities is from early July to late August.
The warm season lasts for 2.8 months, from June 24 to September 19, with an average daily high temperature above 76°F. The hottest day of the year is August 3, with an average high of 83°F and low of 58°F.
The cool season lasts for 3.2 months, from November 15 to February 22, with an average daily high temperature below 52°F. The coldest day of the year is December 31, with an average low of 35°F and high of 44°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 Salmon Creek, the average percentage of the sky covered by clouds experiences extreme seasonal variation over the course of the year.
The clearer part of the year in Salmon Creek begins around June 12 and lasts for 3.8 months, ending around October 7. On August 3, the clearest day of the year, the sky is clear, mostly clear, or partly cloudy 81% of the time, and overcast or mostly cloudy 19% of the time.
The cloudier part of the year begins around October 7 and lasts for 8.2 months, ending around June 12. On November 30, the cloudiest day of the year, the sky is overcast or mostly cloudy 78% of the time, and clear, mostly clear, or partly cloudy 22% of the time.
Cloud Cover Categories
0% clear 20% mostly clear 40% partly cloudy 60% mostly cloudy 80% overcast 100%
A wet day is one with at least 0.04 inches of liquid or liquid-equivalent precipitation. The chance of wet days in Salmon Creek varies very significantly throughout the year.
The wetter season lasts 6.9 months, from October 12 to May 9, with a greater than 32% 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 5.1 months, from May 9 to October 12. The smallest chance of a wet day is 5% on August 3.
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. Salmon Creek experiences extreme seasonal variation in monthly rainfall.
The rainy period of the year lasts for 11 months, from August 10 to July 19, with a sliding 31-day rainfall of at least 0.5 inches. The most rain falls during the 31 days centered around November 25, with an average total accumulation of 10.0 inches.
The rainless period of the year lasts for 3.2 weeks, from July 19 to August 10. The least rain falls around July 29, with an average total accumulation of 0.4 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. Salmon Creek experiences some seasonal variation in monthly liquid-equivalent snowfall.
The snowy period of the year lasts for 2.8 months, from November 27 to February 21, 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 30, with an average total liquid-equivalent accumulation of 0.4 inches.
The snowless period of the year lasts for 9.2 months, from February 21 to November 27. The least snow falls around July 19, with an average total liquid-equivalent accumulation of 0.0 inches.
Average Liquid-Equivalent Monthly Snowfall
The length of the day in Salmon Creek varies significantly over the course of the year. In 2018, the shortest day is December 21, with 8 hours, 41 minutes of daylight; the longest day is June 21, with 15 hours, 43 minutes of daylight.
Hours of Daylight and Twilight
The earliest sunrise is at 5:20 AM on June 15, and the latest sunrise is 2 hours, 33 minutes later at 7:53 AM on November 3. The earliest sunset is at 4:26 PM on December 10, and the latest sunset is 4 hours, 38 minutes later at 9:04 PM on June 26.
Daylight saving time (DST) is observed in Salmon Creek 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 in Salmon Creek, 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
dry 55°F comfortable 60°F humid 65°F muggy 70°F oppressive 75°F miserable
The average hourly wind speed in Salmon Creek experiences mild seasonal variation over the course of the year.
The windier part of the year lasts for 4.6 months, from October 29 to March 17, with average wind speeds of more than 4.9 miles per hour. The windiest day of the year is December 29, with an average hourly wind speed of 5.8 miles per hour.
The calmer time of year lasts for 7.4 months, from March 17 to October 29. The calmest day of the year is August 23, with an average hourly wind speed of 3.9 miles per hour.
Average Wind Speed
The predominant average hourly wind direction in Salmon Creek varies throughout the year.
The wind is most often from the south for 1.6 months, from February 20 to April 7 and for 2.2 months, from October 3 to December 8, with a peak percentage of 46% on November 18. The wind is most often from the west for 5.9 months, from April 7 to October 3, with a peak percentage of 54% on August 7. The wind is most often from the east for 2.4 months, from December 8 to February 20, with a peak percentage of 46% on January 1.
Salmon Creek 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 3.4 months, from June 15 to September 27, with an average temperature above 57°F. The day of the year with the warmest water is August 23, with an average temperature of 59°F.
The time of year with cooler water lasts for 4.2 months, from December 8 to April 14, with an average temperature below 51°F. The day of the year with the coolest water is February 13, with an average temperature of 49°F.
Average Water Temperature
Best Time of Year to Visit
To characterize how pleasant the weather is in Salmon Creek 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 Salmon Creek for general outdoor tourist activities is from early 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 Salmon Creek 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 Salmon Creek typically lasts for 7.9 months (243 days), from around March 19 to around November 17, rarely starting before February 16 or after April 17, and rarely ending before October 24 or after December 12.
Time Spent in Various Temperature Bands and the Growing Season
Based on growing degree days alone, the first spring blooms in Salmon Creek should appear around April 8, only rarely appearing before March 23 or after April 23.
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 2.7 months, from June 1 to August 24, with an average daily incident shortwave energy per square meter above 6.0 kWh. The brightest day of the year is July 21, with an average of 7.2 kWh.
The darker period of the year lasts for 3.9 months, from October 25 to February 23, with an average daily incident shortwave energy per square meter below 2.2 kWh. The darkest day of the year is December 25, with an average of 1.0 kWh.
Average Daily Incident Shortwave Solar Energy
For the purposes of this report, the geographical coordinates of Salmon Creek are 45.711 deg latitude, -122.649 deg longitude, and 210 ft elevation.
The topography within 2 miles of Salmon Creek contains only modest variations in elevation, with a maximum elevation change of 443 feet and an average elevation above sea level of 195 feet. Within 10 miles contains only modest variations in elevation (810 feet). Within 50 miles contains significant variations in elevation (8,284 feet).
The area within 2 miles of Salmon Creek is covered by artificial surfaces (87%), within 10 miles by artificial surfaces (38%) and cropland (35%), and within 50 miles by trees (50%) and shrubs (22%).
This report illustrates the typical weather in Salmon Creek, 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 2 weather stations near enough to contribute to our estimation of the temperature and dew point in Salmon Creek.
For each station, the records are corrected for the elevation difference between that station and Salmon Creek 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 Salmon Creek is computed as the weighted average of the individual contributions from each station, with weights proportional to the inverse of the distance between Salmon Creek and a given station.
Time zones for aiports and weather stations are provided by AskGeo.com .