The average water temperature experiences some seasonal variation over the course of the year. The time of year with warmer water lasts for 3. The time of year with cooler water lasts for 4.
To characterize how pleasant the weather is in Seattle throughout the year, we compute two travel scores. Based on this score, the best time of year to visit Seattle for general outdoor tourist activities is from early July to late August , with a peak score in the first week of August. Based on this score, the best time of year to visit Seattle 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 AM and PM of each day in the analysis period to , 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. The growing season in Seattle typically lasts for 9. Growing degree days are a measure of yearly heat accumulation used to predict plant and animal development, and defined as the integral of warmth above a base temperature, discarding any excess above a maximum temperature.
Based on growing degree days alone, the first spring blooms in Seattle should appear around April 8 , only rarely appearing before March 16 or after April This section discusses the total daily incident shortwave solar energy reaching the surface of the ground over a wide area, taking full account of seasonal variations in the length of the day, the elevation of the Sun above the horizon, and absorption by clouds and other atmospheric constituents.
Shortwave radiation includes visible light and ultraviolet radiation. 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. The brightest month of the year in Seattle is July , with an average of 6.
The darker period of the year lasts for 3. The darkest month of the year in Seattle is December , with an average of 0. For the purposes of this report, the geographical coordinates of Seattle are The topography within 2 miles of Seattle contains only modest variations in elevation, with a maximum elevation change of feet and an average elevation above sea level of feet.
Within 10 miles contains only modest variations in elevation 1, feet. Within 50 miles contains very significant variations in elevation 7, feet. This report illustrates the typical weather in Seattle, based on a statistical analysis of historical hourly weather reports and model reconstructions from January 1, to December 31, There are 3 weather stations near enough to contribute to our estimation of the temperature and dew point in Seattle.
For each station, the records are corrected for the elevation difference between that station and Seattle 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 Seattle is computed as the weighted average of the individual contributions from each station, with weights proportional to the inverse of the distance between Seattle and a given station. To get a sense of how much these sources agree with each other, you can view a comparison of Seattle and the stations that contribute to our estimates of its temperature history and climate.
Please note that each source's contribution is adjusted for elevation and the relative change present in the MERRA-2 data. All data relating to the Sun's position e. This reanalysis combines a variety of wide-area measurements in a state-of-the-art global meteorological model to reconstruct the hourly history of weather throughout the world on a kilometer grid.
Names, locations, and time zones of places and some airports come from the GeoNames Geographical Database. Time zones for airports and weather stations are provided by AskGeo. The information on this site is provided as is, without any assurances as to its accuracy or suitability for any purpose. The youth programs are very exciting and include class field trips where students can learn how to sail, learn the basics of woodworking, and all sorts of other important maritime skills.
There is also a course in building toy boats for children as young as 5. Thanks to generous sponsors, this program allows access to children whose families who might not otherwise be able to afford these courses. Through a supportive and fun environment, the hard-working staff at the CWB hopes to instill a passion and understanding of the water that will last a lifetime.
There are also various historical and technical exhibits on display at the CWB. These exhibits include the CWB's vast fleet of watercraft, everything from massive sailboats to paddleboats. There is the preservation and documentation area where the CWB tracks and documents historical watercrafts. The Dock Toys exhibit focuses on basic maritime skills that all sailors should possess, this is a hands-on exhibit. Everything from signal flags to tying the correct knots is taught at this exhibit.
There are also a variety of rotating exhibits that explore the history of small water crafts in the Pacific Northwest.
Each focuses on a different aspects of the history of watercrafts, including engineering, design, and function. The most popular exhibit is probably The BoatShop, this is where visitors can take classes, trainings, and most importantly work on their watercrafts! This area is constantly buzzing with activity and is definitely a must-see for members of the whole family. Because there is so much offered at the Center for Wooden Boats, it is recommended that before visiting, guests look over the website and call ahead to book their desired course or activity.
However, there is always something to do and see at the CWB, so if visitors live close-by, just popping by and seeing what's going on will sure to delight and entertain. The surrounding Seattle-area is well-known for its culture, history, and most importantly, it's delicious coffee and treats.
There is never a shortage of exciting and entertaining hot spots to enjoy. Whether it be touring world-class museums, tasting delicious cuisine, or enjoying the great outdoors, there is sure to be something for every member of your family to enjoy. The CWB hosts lots of exciting events for visitors of all ages, including: kids breakfasts, the wooden boat festival, auctions, haunted boathouse, mother's day Saturday sail, a third Friday speaker series, a spaghetti social, and even corporate team building and workshops.
The garden is a formal garden stretching across 3. The Seattle Japanese Garden has seen a vast number of visitors pass through its pathway with a total reaching 85, annually. Garden lovers have come from all over the world just to get an eyewitness account of the exquisiteness that has been viewed as a notable Japanese style — garden of importance. The style developed from the 16th and 17th century is an important art form of the Japanese.
The present options take you through a stroll in the garden that can lead to various and winding paths. The landscapes that are on offer vary, with waterfalls, mountains, islands, lakes, rivers and forests being there for tourists to witness. More is revealed for those who wish to see it all.
Juki Iida is a prominent name amongst those who knew of his active presence in the development of The Seattle Japanese Garden. Juki was a landscape developer who wanted to combine his Japanese traditional plant materials with his frequent travels to the Cascades.
He would often take off in search of new additions to his garden, like granite rocks that could be placed near the waterfalls. The inspiration behind his landscape design came from a scroll that he developed whilst staying in Seattle during — The depictions on the scroll detail all his inspirations for the garden that is displayed in the library at the Elisabeth C.
Miller Horticulture Library. Iida was elected as the project lead designer by The Tokyo Park Department. Iida has created over gardens; — and was even honored by the Emperor of Japan. The Seattle Japanese Garden is the largest — and only one to survive. This station measures solar radiation every 2 minutes and records the average over 10 minutes. The school's Davis Instruments Vantage Pro2 Plus sensors are mounted on the rooftop of the high school, about a mile southwest of ferry dock to Victoria B.
There is excellent exposure clockwise from northeast to southwest and good exposure for the other directions. The sensors record solar radiation every five minutes.
Special thanks to Peter Alexander, his math classes, and Lincoln High School f or the data and support.. This seven story building is not in the classical Olympic Rain Shadow area, but is still slightly shadowed by the Olympics. Given that the sensor is located atop a tall building, this location has ideal exposure and receives maximum solar radiation. This station records solar radiation every minute. The fourth station is in downtown Port Townsend at a private residence.
The Davis Instruments Vantage Pro 2 Plus with option solar sensor is located on the roof of the home and has clear exposure to all directions. For the year long study, we made a number of improvements to our model which estimates sky conditions from solar radiation. First, we and others noticed that the UW equipment in Seattle was uniformly recording lower radiation than the two other stations, even on completely clear, sunny days. So we normalized the radiation on the Y axis such that that all stations were recording nearly identical radiation on clear sunny days.
This reduced, but in no way eliminated, the advantage rain shadow locations had over Seattle. Next, we made our seasonality model much more sophisticated. Originally, we used radiation and "bright sunny hours" thresholds computed on a monthly basis to estimate sunny days.
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