Average Weather in April in Lake Forest Park Washington, United States
Daily high temperatures increase by 6°F, from 56°F to 62°F, rarely falling below 49°F or exceeding 73°F.
Daily low temperatures increase by 4°F, from 43°F to 47°F, rarely falling below 37°F or exceeding 52°F.
For reference, on August 3, the hottest day of the year, temperatures in Lake Forest Park typically range from 58°F to 77°F, while on December 23, the coldest day of the year, they range from 37°F to 45°F.
Average High and Low Temperature in April
The figure below shows you a compact characterization of the hourly average temperatures for the quarter of the year centered on April. The horizontal axis is the day, 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 April
The month of April in Lake Forest Park experiences decreasing cloud cover, with the percentage of time that the sky is overcast or mostly cloudy decreasing from 66% to 56%.
The clearest day of the month is April 30, with clear, mostly clear, or partly cloudy conditions 44% of the time.
For reference, on January 19, the cloudiest day of the year, the chance of overcast or mostly cloudy conditions is 73%, while on August 3, the clearest day of the year, the chance of clear, mostly clear, or partly cloudy skies is 75%.
Cloud Cover Categories in April
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. In Lake Forest Park, the chance of a wet day over the course of April is very rapidly decreasing, starting the month at 46% and ending it at 33%.
For reference, the year's highest daily chance of a wet day is 58% on November 18, and its lowest chance is 9% on August 11.
Probability of Precipitation in April
The average sliding 31-day rainfall during April in Lake Forest Park is rapidly decreasing, starting the month at 4.1 inches, when it rarely exceeds 6.3 inches or falls below 2.0 inches, and ending the month at 2.6 inches, when it rarely exceeds 4.5 inches or falls below 1.0 inches.
Average Monthly Rainfall in April
Over the course of April in Lake Forest Park, the length of the day is rapidly increasing. From the start to the end of the month, the length of the day increases by 1 hour, 36 minutes, implying an average daily increase of 3 minutes, 18 seconds, and weekly increase of 23 minutes, 3 seconds.
The shortest day of the month is April 1, with 12 hours, 51 minutes of daylight and the longest day is April 30, with 14 hours, 27 minutes of daylight.
Hours of Daylight and Twilight in April
The latest sunrise of the month in Lake Forest Park is 6:47 AM on April 1 and the earliest sunrise is 54 minutes earlier at 5:53 AM on April 30.
The earliest sunset is 7:39 PM on April 1 and the latest sunset is 41 minutes later at 8:20 PM on April 30.
Daylight saving time is observed in Lake Forest Park during 2019, but it neither starts nor ends during April, so the entire month is in daylight saving time.
For reference, on June 21, the longest day of the year, the Sun rises at 5:10 AM and sets 16 hours, 1 minute later, at 9:11 PM, while on December 22, the shortest day of the year, it rises at 7:55 AM and sets 8 hours, 24 minutes later, at 4:19 PM.
Sunrise & Sunset with Twilight and Daylight Saving Time in April
The chance that a given day will be muggy in Lake Forest Park is essentially constant during April, remaining around 0% throughout.
For reference, on September 13, the muggiest day of the year, there are muggy conditions 0% of the time, while on January 1, the least muggy day of the year, there are muggy conditions 0% of the time.
Humidity Comfort Levels in April
dry 55°F comfortable 60°F humid 65°F muggy 70°F oppressive 75°F miserable
The average hourly wind speed in Lake Forest Park is gradually decreasing during April, decreasing from 4.3 miles per hour to 3.6 miles per hour over the course of the month.
For reference, on December 4, the windiest day of the year, the daily average wind speed is 5.2 miles per hour, while on August 2, the calmest day of the year, the daily average wind speed is 2.5 miles per hour.
Average Wind Speed in April
Wind Direction in April
Lake Forest Park 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 surface water temperature in Lake Forest Park is gradually increasing during April, rising by 2°F, from 48°F to 50°F, over the course of the month.
Average Water Temperature in April
The growing season in Lake Forest Park typically lasts for 9.2 months (280 days), from around February 20 to around November 27, rarely starting before January 15 or after March 14, and rarely ending before November 3 or after December 20.
The month of April in Lake Forest Park is reliably fully within the growing season.
Time Spent in Various Temperature Bands and the Growing Season in April
The average accumulated growing degree days in Lake Forest Park are gradually increasing during April, increasing by 82°F, from 60°F to 142°F, over the course of the month.
Growing Degree Days in April
The average daily incident shortwave solar energy in Lake Forest Park is increasing during April, rising by 1.4 kWh, from 3.8 kWh to 5.2 kWh, over the course of the month.
Average Daily Incident Shortwave Solar Energy in April
For the purposes of this report, the geographical coordinates of Lake Forest Park are 47.757 deg latitude, -122.281 deg longitude, and 292 ft elevation.
The topography within 2 miles of Lake Forest Park contains significant variations in elevation, with a maximum elevation change of 531 feet and an average elevation above sea level of 216 feet. Within 10 miles also contains significant variations in elevation (640 feet). Within 50 miles contains significant variations in elevation (7,720 feet).
The area within 2 miles of Lake Forest Park is covered by artificial surfaces (69%) and water (13%), within 10 miles by artificial surfaces (55%) and water (27%), and within 50 miles by trees (51%) and water (17%).
This report illustrates the typical weather in Lake Forest Park year round, 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 Lake Forest Park.
For each station, the records are corrected for the elevation difference between that station and Lake Forest Park 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 Lake Forest Park is computed as the weighted average of the individual contributions from each station, with weights proportional to the inverse of the distance between Lake Forest Park and a given station.
Time zones for aiports and weather stations are provided by AskGeo.com .