Average Weather in Athena Oregon, United States
In Athena, the summers are short, warm, dry, and mostly clear and the winters are very cold and partly cloudy. Over the course of the year, the temperature typically varies from 28°F to 88°F and is rarely below 14°F or above 97°F.
Based on the tourism score, the best time of year to visit Athena for warm-weather activities is from early July to late August.
The hot season lasts for 2.7 months, from June 20 to September 11, with an average daily high temperature above 78°F. The hottest day of the year is August 2, with an average high of 88°F and low of 58°F.
The cold season lasts for 3.3 months, from November 14 to February 23, with an average daily high temperature below 47°F. The coldest day of the year is December 29, with an average low of 28°F and high of 37°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 Athena, 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 in Athena begins around June 13 and lasts for 3.8 months, ending around October 7. On July 29, the clearest day of the year, the sky is clear, mostly clear, or partly cloudy 82% of the time, and overcast or mostly cloudy 18% of the time.
The cloudier part of the year begins around October 7 and lasts for 8.2 months, ending around June 13. On January 16, the cloudiest day of the year, the sky is overcast or mostly cloudy 66% of the time, and clear, mostly clear, or partly cloudy 34% of the time.
Cloud Cover Categories
A wet day is one with at least 0.04 inches of liquid or liquid-equivalent precipitation. The chance of wet days in Athena varies throughout the year.
The wetter season lasts 7.5 months, from October 21 to June 5, with a greater than 21% chance of a given day being a wet day. The chance of a wet day peaks at 35% on December 1.
The drier season lasts 4.5 months, from June 5 to October 21. The smallest chance of a wet day is 6% on August 4.
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 29% on November 19.
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. Athena experiences some seasonal variation in monthly rainfall.
The rainy period of the year lasts for 10 months, from September 5 to July 6, with a sliding 31-day rainfall of at least 0.5 inches. The most rain falls during the 31 days centered around November 21, with an average total accumulation of 1.8 inches.
The rainless period of the year lasts for 2.0 months, from July 6 to September 5. The least rain falls around July 29, with an average total accumulation of 0.3 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. Athena experiences some seasonal variation in monthly liquid-equivalent snowfall.
The snowy period of the year lasts for 3.3 months, from November 17 to February 25, 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 30, with an average total liquid-equivalent accumulation of 0.4 inches.
The snowless period of the year lasts for 8.7 months, from February 25 to November 17. The least snow falls around July 15, with an average total liquid-equivalent accumulation of 0.0 inches.
Average Liquid-Equivalent Monthly Snowfall
The length of the day in Athena varies significantly over the course of the year. In 2018, the shortest day is December 21, with 8 hours, 40 minutes of daylight; the longest day is June 21, with 15 hours, 44 minutes of daylight.
Hours of Daylight and Twilight
The earliest sunrise is at 5:03 AM on June 15, and the latest sunrise is 2 hours, 34 minutes later at 7:37 AM on November 3. The earliest sunset is at 4:09 PM on December 10, and the latest sunset is 4 hours, 39 minutes later at 8:48 PM on June 26.
Daylight saving time (DST) is observed in Athena 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 in Athena, 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
The average hourly wind speed in Athena experiences mild seasonal variation over the course of the year.
The windier part of the year lasts for 5.4 months, from October 30 to April 11, with average wind speeds of more than 7.8 miles per hour. The windiest day of the year is December 1, with an average hourly wind speed of 8.9 miles per hour.
The calmer time of year lasts for 6.6 months, from April 11 to October 30. The calmest day of the year is August 27, with an average hourly wind speed of 6.6 miles per hour.
Average Wind Speed
The predominant average hourly wind direction in Athena varies throughout the year.
The wind is most often from the west for 7.1 months, from March 14 to October 17, with a peak percentage of 65% on June 30. The wind is most often from the south for 4.9 months, from October 17 to March 14, with a peak percentage of 64% on January 1.
Best Time of Year to Visit
To characterize how pleasant the weather is in Athena 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 Athena for general outdoor tourist activities is from early July to late 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 Athena 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 Athena typically lasts for 6.1 months (187 days), from around April 16 to around October 19, rarely starting before March 24 or after May 7, and rarely ending before October 1 or after November 7.
Time Spent in Various Temperature Bands and the Growing Season
Based on growing degree days alone, the first spring blooms in Athena should appear around April 18, only rarely appearing before April 4 or after May 4.
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 20 to August 22, with an average daily incident shortwave energy per square meter above 6.4 kWh. The brightest day of the year is July 13, with an average of 7.7 kWh.
The darker period of the year lasts for 3.7 months, from October 27 to February 18, with an average daily incident shortwave energy per square meter below 2.5 kWh. The darkest day of the year is December 23, with an average of 1.3 kWh.
Average Daily Incident Shortwave Solar Energy
For the purposes of this report, the geographical coordinates of Athena are 45.812 deg latitude, -118.491 deg longitude, and 1,821 ft elevation.
The topography within 2 miles of Athena contains only modest variations in elevation, with a maximum elevation change of 410 feet and an average elevation above sea level of 1,805 feet. Within 10 miles contains only modest variations in elevation (2,861 feet). Within 50 miles contains large variations in elevation (6,614 feet).
The area within 2 miles of Athena is covered by cropland (94%), within 10 miles by cropland (67%) and grassland (20%), and within 50 miles by shrubs (42%) and cropland (28%).
This report illustrates the typical weather in Athena, 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 4 weather stations near enough to contribute to our estimation of the temperature and dew point in Athena.
For each station, the records are corrected for the elevation difference between that station and Athena 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 Athena is computed as the weighted average of the individual contributions from each station, with weights proportional to the inverse of the distance between Athena and a given station.
The stations contributing to this reconstruction are: Eastern Oregon Regional Airport (43%, 31 kilometers, southwest); Meacham, Meacham (15%, 34 kilometers, south); Walla Walla Regional Airport (31%, 35 kilometers, northeast); and Tri-Cities Airport (11%, 70 kilometers, northwest).
Time zones for aiports and weather stations are provided by AskGeo.com .