Average Weather in April in Omak Washington, United States
Daily high temperatures increase by 9°F, from 59°F to 69°F, rarely falling below 52°F or exceeding 80°F.
Daily low temperatures increase by 7°F, from 35°F to 42°F, rarely falling below 27°F or exceeding 51°F.
For reference, on August 1, the hottest day of the year, temperatures in Omak typically range from 60°F to 92°F, while on January 1, the coldest day of the year, they range from 22°F to 31°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
Ivankovci, Macedonia (5,777 miles away); Novozhilovka, Ukraine (5,786 miles); and Kemaliye, Turkey (6,238 miles) are the far-away foreign places with temperatures most similar to Omak (view comparison).
The month of April in Omak experiences gradually decreasing cloud cover, with the percentage of time that the sky is overcast or mostly cloudy decreasing from 58% to 51%.
The clearest day of the month is April 30, with clear, mostly clear, or partly cloudy conditions 49% of the time.
For reference, on January 15, the cloudiest day of the year, the chance of overcast or mostly cloudy conditions is 67%, while on August 3, the clearest day of the year, the chance of clear, mostly clear, or partly cloudy skies is 78%.
Cloud Cover Categories in April
A wet day is one with at least 0.04 inches of liquid or liquid-equivalent precipitation. In Omak, the chance of a wet day over the course of April is gradually decreasing, starting the month at 17% and ending it at 14%.
For reference, the year's highest daily chance of a wet day is 31% on November 28, and its lowest chance is 7% on August 18.
Probability of Precipitation in April
The average sliding 31-day rainfall during April in Omak is essentially constant, remaining about 0.8 inches throughout, and rarely exceeding 1.8 inches or falling below 0.2 inches.
The lowest average 31-day accumulation is 0.7 inches on April 19.
Average Monthly Rainfall in April
Over the course of April in Omak, 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, 38 minutes, implying an average daily increase of 3 minutes, 22 seconds, and weekly increase of 23 minutes, 36 seconds.
The shortest day of the month is April 1, with 12 hours, 53 minutes of daylight and the longest day is April 30, with 14 hours, 31 minutes of daylight.
Hours of Daylight and Twilight in April
The latest sunrise of the month in Omak is 6:35 AM on April 1 and the earliest sunrise is 55 minutes earlier at 5:40 AM on April 30.
The earliest sunset is 7:28 PM on April 1 and the latest sunset is 42 minutes later at 8:11 PM on April 30.
Daylight saving time is observed in Omak during 2018, 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 4:56 AM and sets 16 hours, 7 minutes later, at 9:03 PM, while on December 21, the shortest day of the year, it rises at 7:46 AM and sets 8 hours, 19 minutes later, at 4:05 PM.
Sunrise & Sunset with Twilight and Daylight Saving Time in April
The chance that a given day will be muggy in Omak is essentially constant during April, remaining around 0% throughout.
For reference, on July 29, 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
The average hourly wind speed in Omak is essentially constant during April, remaining within 0.1 miles per hour of 5.2 miles per hour throughout.
For reference, on April 18, the windiest day of the year, the daily average wind speed is 5.3 miles per hour, while on January 7, the calmest day of the year, the daily average wind speed is 4.0 miles per hour.
The highest daily average wind speed during April is 5.3 miles per hour on April 18.
Average Wind Speed in April
Wind Direction in April
The growing season in Omak typically lasts for 5.4 months (164 days), from around April 28 to around October 9, rarely starting before April 6 or after May 17, and rarely ending before September 20 or after October 28.
During April in Omak, the chance that a given day is within the growing season is very rapidly increasing rising from 5% to 56% over the course of the month.
Time Spent in Various Temperature Bands and the Growing Season in April
The average accumulated growing degree days in Omak are gradually increasing during April, increasing by 135°F, from 40°F to 175°F, over the course of the month.
Growing Degree Days in April
The average daily incident shortwave solar energy in Omak is increasing during April, rising by 1.4 kWh, from 4.4 kWh to 5.8 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 Omak are 48.411 deg latitude, -119.528 deg longitude, and 1,201 ft elevation.
The topography within 2 miles of Omak contains significant variations in elevation, with a maximum elevation change of 614 feet and an average elevation above sea level of 1,043 feet. Within 10 miles contains significant variations in elevation (4,367 feet). Within 50 miles also contains extreme variations in elevation (8,117 feet).
The area within 2 miles of Omak is covered by shrubs (38%), cropland (30%), grassland (17%), and artificial surfaces (15%), within 10 miles by shrubs (65%) and grassland (22%), and within 50 miles by shrubs (41%) and trees (27%).
This report illustrates the typical weather in Omak 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 5 weather stations near enough to contribute to our estimation of the temperature and dew point in Omak.
For each station, the records are corrected for the elevation difference between that station and Omak 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 Omak is computed as the weighted average of the individual contributions from each station, with weights proportional to the inverse of the distance between Omak and a given station.
The stations contributing to this reconstruction are: Omak Airport (96%, 6.0 kilometers, north); Ephrata Municipal Airport (1.2%, 123 kilometers, south); Pangborn Field (1.2%, 123 kilometers, southwest); Deer Park Airport (0.8%, 163 kilometers, east); and Fairchild Air Force Base (0.8%, 164 kilometers, southeast).
Time zones for aiports and weather stations are provided by AskGeo.com .