Average Weather at Omak Airport Washington, United States
At Omak Airport, the summers are hot and partly cloudy, the winters are freezing and mostly cloudy, and it is dry year round. Over the course of the year, the temperature typically varies from 22°F to 91°F and is rarely below 7°F or above 100°F.
Based on the tourism score, the best time of year to visit Omak Airport for warm-weather activities is from early July to late August.
The hot season lasts for 3.0 months, from June 13 to September 14, with an average daily high temperature above 79°F. The hottest day of the year is August 1, with an average high of 91°F and low of 60°F.
The cold season lasts for 3.1 months, from November 17 to February 21, with an average daily high temperature below 43°F. The coldest day of the year is December 30, with an average low of 22°F and high of 31°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
Булачани, Macedonia (5,753 miles away); Litvinenkovo, Ukraine (5,789 miles); and Kemaliye, Turkey (6,234 miles) are the far-away foreign places with temperatures most similar to Omak Airport (view comparison).
At Omak Airport, the average percentage of the sky covered by clouds experiences significant seasonal variation over the course of the year.
The clearer part of the year at Omak Airport begins around June 10 and lasts for 3.9 months, ending around October 6. On August 3, the clearest day of the year, the sky is clear, mostly clear, or partly cloudy 78% of the time, and overcast or mostly cloudy 22% of the time.
The cloudier part of the year begins around October 6 and lasts for 8.1 months, ending around June 10. On January 10, the cloudiest day of the year, the sky is overcast or mostly cloudy 67% of the time, and clear, mostly clear, or partly cloudy 33% 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 at Omak Airport varies throughout the year.
The wetter season lasts 7.4 months, from October 22 to June 2, with a greater than 19% chance of a given day being a wet day. The chance of a wet day peaks at 31% on November 28.
The drier season lasts 4.6 months, from June 2 to October 22. The smallest chance of a wet day is 7% on August 17.
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 at Omak Airport changes throughout the year.
Rain alone is the most common for 10 months, from January 27 to December 8. The highest chance of a day with rain alone is 24% on November 10.
Snow alone is the most common for 1.6 months, from December 8 to January 27. The highest chance of a day with snow alone is 15% on December 28.
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. Omak Airport experiences some seasonal variation in monthly rainfall.
The rainy period of the year lasts for 10 months, from September 19 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 17, with an average total accumulation of 1.6 inches.
The rainless period of the year lasts for 2.0 months, from July 19 to September 19. The least rain falls around August 19, 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. Omak Airport experiences some seasonal variation in monthly liquid-equivalent snowfall.
The snowy period of the year lasts for 4.5 months, from October 29 to March 12, 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 28, with an average total liquid-equivalent accumulation of 0.9 inches.
The snowless period of the year lasts for 7.5 months, from March 12 to October 29. The least snow falls around July 10, with an average total liquid-equivalent accumulation of 0.0 inches.
Average Liquid-Equivalent Monthly Snowfall
The length of the day at Omak Airport varies extremely over the course of the year. In 2018, the shortest day is December 21, with 8 hours, 18 minutes of daylight; the longest day is June 21, with 16 hours, 7 minutes of daylight.
Hours of Daylight and Twilight
The earliest sunrise is at 4:55 AM on June 16, and the latest sunrise is 2 hours, 54 minutes later at 7:49 AM on December 31. The earliest sunset is at 4:02 PM on December 10, and the latest sunset is 5 hours, 1 minute later at 9:03 PM on June 25.
Daylight saving time (DST) is observed at Omak Airport 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 at Omak Airport, 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 at Omak Airport experiences mild seasonal variation over the course of the year.
The windier part of the year lasts for 6.9 months, from February 27 to September 23, with average wind speeds of more than 4.5 miles per hour. The windiest day of the year is April 18, with an average hourly wind speed of 5.2 miles per hour.
The calmer time of year lasts for 5.1 months, from September 23 to February 27. The calmest day of the year is January 7, with an average hourly wind speed of 3.9 miles per hour.
Average Wind Speed
The predominant average hourly wind direction at Omak Airport varies throughout the year.
The wind is most often from the north for 1.4 weeks, from January 23 to February 2; for 1.9 weeks, from February 9 to February 22; and for 2.7 months, from July 17 to October 9, with a peak percentage of 41% on August 7. The wind is most often from the south for 1.0 weeks, from February 2 to February 9; for 3.6 weeks, from February 22 to March 19; and for 3.5 months, from October 9 to January 23, with a peak percentage of 32% on February 27. The wind is most often from the west for 3.9 months, from March 19 to July 17, with a peak percentage of 39% on June 23.
Best Time of Year to Visit
To characterize how pleasant the weather is at Omak Airport 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 Omak Airport 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 Omak Airport 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 at Omak Airport typically lasts for 5.4 months (163 days), from around April 28 to around October 8, rarely starting before April 6 or after May 18, and rarely ending before September 20 or after October 27.
Time Spent in Various Temperature Bands and the Growing Season
Based on growing degree days alone, the first spring blooms at Omak Airport should appear around April 16, only rarely appearing before April 6 or after April 27.
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 3.3 months, from May 13 to August 21, with an average daily incident shortwave energy per square meter above 6.2 kWh. The brightest day of the year is July 14, with an average of 7.5 kWh.
The darker period of the year lasts for 3.7 months, from October 25 to February 16, with an average daily incident shortwave energy per square meter below 2.3 kWh. The darkest day of the year is December 24, with an average of 1.1 kWh.
Average Daily Incident Shortwave Solar Energy
For the purposes of this report, the geographical coordinates of Omak Airport are 48.464 deg latitude, -119.518 deg longitude, and 1,280 ft elevation.
The topography within 2 miles of Omak Airport contains very significant variations in elevation, with a maximum elevation change of 823 feet and an average elevation above sea level of 1,254 feet. Within 10 miles contains very significant variations in elevation (4,915 feet). Within 50 miles also contains extreme variations in elevation (8,159 feet).
The area within 2 miles of Omak Airport is covered by shrubs (40%), grassland (31%), and cropland (29%), within 10 miles by shrubs (67%) and grassland (21%), and within 50 miles by shrubs (40%) and trees (28%).
This report illustrates the typical weather at Omak Airport, 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
Omak Airport has a weather station that reported reliably enough during the analysis period that we have included it in our network. When available, historical temperature and dew point measurements are taken directly from this weather station. These records are obtained from NOAA's Integrated Surface Hourly data set, falling back on ICAO METAR records as required.
In the case of missing or erroneous measurements from this station, we fall back on records from nearby stations, adjusted according to typical seasonal and diurnal intra-station differences. For a given day of the year and hour of the day, the fallback station is selected to minimize the prediction error over the years for which there are measurements for both stations.
The stations on which we may fall back include but are not limited to Osoyoos Automatic Weather Reporting System, Penticton Regional Airport, Summerland Automatic Weather Reporting System, Ephrata Municipal Airport, Pangborn Field, Grant County International Airport, Princeton Automatic Weather Reporting System, and Kelowna International Airport.
Time zones for aiports and weather stations are provided by AskGeo.com .