Average Weather in Medical Lake Washington, United States
In Medical Lake, the summers are short, warm, dry, and mostly clear and the winters are freezing and mostly cloudy. Over the course of the year, the temperature typically varies from 23°F to 85°F and is rarely below 9°F or above 94°F.
Based on the tourism score, the best time of year to visit Medical Lake for warm-weather activities is from early July to mid August.
The hot season lasts for 2.8 months, from June 17 to September 12, with an average daily high temperature above 75°F. The hottest day of the year is July 31, with an average high of 85°F and low of 58°F.
The cold season lasts for 3.4 months, from November 14 to February 24, with an average daily high temperature below 43°F. The coldest day of the year is December 29, with an average low of 23°F and high of 32°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 Medical Lake, 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 Medical Lake begins around June 5 and lasts for 4.1 months, ending around October 9. On July 31, the clearest day of the year, the sky is clear, mostly clear, or partly cloudy 79% of the time, and overcast or mostly cloudy 21% of the time.
The cloudier part of the year begins around October 9 and lasts for 7.9 months, ending around June 5. On January 10, the cloudiest day of the year, the sky is overcast or mostly cloudy 73% of the time, and clear, mostly clear, or partly cloudy 27% 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 Medical Lake varies throughout the year.
The wetter season lasts 7.5 months, from October 21 to June 6, with a greater than 21% chance of a given day being a wet day. The chance of a wet day peaks at 35% on November 30.
The drier season lasts 4.5 months, from June 6 to October 21. The smallest chance of a wet day is 7% 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 28% on November 9.
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. Medical Lake experiences some seasonal variation in monthly rainfall.
The rainy period of the year lasts for 10 months, from September 6 to July 18, with a sliding 31-day rainfall of at least 0.5 inches. The most rain falls during the 31 days centered around November 19, with an average total accumulation of 1.9 inches.
The rainless period of the year lasts for 1.6 months, from July 18 to September 6. The least rain falls around August 9, 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. Medical Lake experiences some seasonal variation in monthly liquid-equivalent snowfall.
The snowy period of the year lasts for 4.4 months, from November 1 to March 13, 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 29, with an average total liquid-equivalent accumulation of 0.6 inches.
The snowless period of the year lasts for 7.6 months, from March 13 to November 1. The least snow falls around July 28, with an average total liquid-equivalent accumulation of 0.0 inches.
Average Liquid-Equivalent Monthly Snowfall
The length of the day in Medical Lake varies significantly over the course of the year. In 2020, 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 4:52 AM on June 15, and the latest sunrise is 2 hours, 46 minutes later at 7:38 AM on December 31. The earliest sunset is at 3:59 PM on December 10, and the latest sunset is 4 hours, 53 minutes later at 8:52 PM on June 25.
Daylight saving time (DST) is observed in Medical Lake during 2020, starting in the spring on March 8, lasting 7.8 months, and ending in the fall on November 1.
Sunrise & Sunset with Twilight and Daylight Saving Time
The perceived humidity level in Medical Lake, 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 Medical Lake experiences mild seasonal variation over the course of the year.
The windier part of the year lasts for 4.2 months, from January 8 to May 15, with average wind speeds of more than 7.2 miles per hour. The windiest day of the year is March 25, with an average hourly wind speed of 8.0 miles per hour.
The calmer time of year lasts for 7.8 months, from May 15 to January 8. The calmest day of the year is August 11, with an average hourly wind speed of 6.4 miles per hour.
Average Wind Speed
The predominant average hourly wind direction in Medical Lake varies throughout the year.
The wind is most often from the east for 1.4 weeks, from January 24 to February 3 and for 1.0 weeks, from February 11 to February 18, with a peak percentage of 39% on January 27. The wind is most often from the south for 1.1 weeks, from February 3 to February 11; for 1.5 months, from February 18 to April 4; and for 3.7 months, from October 3 to January 24, with a peak percentage of 38% on February 7. The wind is most often from the west for 6.0 months, from April 4 to October 3, with a peak percentage of 44% on July 15.
Best Time of Year to Visit
To characterize how pleasant the weather is in Medical Lake 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 Medical Lake for general outdoor tourist activities is from early July to mid 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 Medical Lake for hot-weather activities is from mid July to mid 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 in Medical Lake typically lasts for 5.5 months (169 days), from around April 28 to around October 14, rarely starting before April 7 or after May 16, and rarely ending before September 25 or after November 2.
Time Spent in Various Temperature Bands and the Growing Season
Based on growing degree days alone, the first spring blooms in Medical Lake should appear around April 29, only rarely appearing before April 17 or after May 13.
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 3.1 months, from May 15 to August 20, with an average daily incident shortwave energy per square meter above 6.3 kWh. The brightest day of the year is July 14, with an average of 7.6 kWh.
The darker period of the year lasts for 3.8 months, from October 25 to February 19, with an average daily incident shortwave energy per square meter below 2.3 kWh. The darkest day of the year is December 22, with an average of 1.0 kWh.
Average Daily Incident Shortwave Solar Energy
For the purposes of this report, the geographical coordinates of Medical Lake are 47.573 deg latitude, -117.682 deg longitude, and 2,421 ft elevation.
The topography within 2 miles of Medical Lake contains significant variations in elevation, with a maximum elevation change of 525 feet and an average elevation above sea level of 2,427 feet. Within 10 miles contains significant variations in elevation (1,145 feet). Within 50 miles contains very significant variations in elevation (4,626 feet).
The area within 2 miles of Medical Lake is covered by shrubs (52%), grassland (31%), and cropland (13%), within 10 miles by shrubs (40%) and cropland (31%), and within 50 miles by shrubs (35%) and cropland (31%).
This report illustrates the typical weather in Medical Lake, 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 3 weather stations near enough to contribute to our estimation of the temperature and dew point in Medical Lake.
For each station, the records are corrected for the elevation difference between that station and Medical Lake 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 Medical Lake is computed as the weighted average of the individual contributions from each station, with weights proportional to the inverse of the distance between Medical Lake and a given station.
The stations contributing to this reconstruction are: Fairchild Air Force Base (97%, 7 kilometers, north); Pullman–Moscow Regional Airport (1.8%, 102 kilometers, southeast); and Grant County International Airport (1.2%, 130 kilometers, west).
Time zones for aiports and weather stations are provided by AskGeo.com .