Average Weather in August in Pilot Rock Oregon, United States
Daily high temperatures decrease by 6°F, from 88°F to 82°F, rarely falling below 71°F or exceeding 97°F. The highest daily average high temperature is 88°F on August 3.
Daily low temperatures decrease by 4°F, from 58°F to 53°F, rarely falling below 46°F or exceeding 65°F.
For reference, on August 2, the hottest day of the year, temperatures in Pilot Rock typically range from 58°F to 88°F, while on December 23, the coldest day of the year, they range from 29°F to 39°F.
Average High and Low Temperature in August
The figure below shows you a compact characterization of the hourly average temperatures for the quarter of the year centered on August. 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 August
San Lorenzo de El Escorial, Spain (5,258 miles away); Leskovik, Albania (6,016 miles); and Eskişehir, Turkey (6,254 miles) are the far-away foreign places with temperatures most similar to Pilot Rock (view comparison).
The month of August in Pilot Rock experiences gradually increasing cloud cover, with the percentage of time that the sky is overcast or mostly cloudy increasing from 18% to 25%.
The clearest day of the month is August 1, with clear, mostly clear, or partly cloudy conditions 82% of the time.
For reference, on January 16, the cloudiest day of the year, the chance of overcast or mostly cloudy conditions is 65%, while on July 29, the clearest day of the year, the chance of clear, mostly clear, or partly cloudy skies is 83%.
Cloud Cover Categories in August
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 Pilot Rock, the chance of a wet day over the course of August is essentially constant, remaining around 7% throughout.
For reference, the year's highest daily chance of a wet day is 32% on November 28, and its lowest chance is 6% on August 2.
Probability of Precipitation in August
The average sliding 31-day rainfall during August in Pilot Rock is essentially constant, remaining about 0.4 inches throughout, and rarely exceeding 1.0 inches or falling below -0.0 inches.
Average Monthly Rainfall in August
Over the course of August in Pilot Rock, the length of the day is rapidly decreasing. From the start to the end of the month, the length of the day decreases by 1 hour, 25 minutes, implying an average daily decrease of 2 minutes, 49 seconds, and weekly decrease of 19 minutes, 46 seconds.
The shortest day of the month is August 31, with 13 hours, 19 minutes of daylight and the longest day is August 1, with 14 hours, 44 minutes of daylight.
Hours of Daylight and Twilight in August
The earliest sunrise of the month in Pilot Rock is 5:39 AM on August 1 and the latest sunrise is 36 minutes later at 6:15 AM on August 31.
The latest sunset is 8:23 PM on August 1 and the earliest sunset is 48 minutes earlier at 7:34 PM on August 31.
Daylight saving time is observed in Pilot Rock during 2018, but it neither starts nor ends during August, so the entire month is in daylight saving time.
For reference, on June 21, the longest day of the year, the Sun rises at 5:06 AM and sets 15 hours, 41 minutes later, at 8:47 PM, while on December 21, the shortest day of the year, it rises at 7:32 AM and sets 8 hours, 42 minutes later, at 4:14 PM.
Sunrise & Sunset with Twilight in August
The chance that a given day will be muggy in Pilot Rock is essentially constant during August, remaining around 0% throughout.
For reference, on August 24, 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 August
dry 55°F comfortable 60°F humid 65°F muggy 70°F oppressive 75°F miserable
The average hourly wind speed in Pilot Rock is essentially constant during August, remaining within 0.1 miles per hour of 7.5 miles per hour throughout.
For reference, on January 17, the windiest day of the year, the daily average wind speed is 10.4 miles per hour, while on September 8, the calmest day of the year, the daily average wind speed is 7.3 miles per hour.
Average Wind Speed in August
Wind Direction in August
The growing season in Pilot Rock typically lasts for 6.1 months (186 days), from around April 16 to around October 19, rarely starting before March 23 or after May 9, and rarely ending before September 29 or after November 8.
The month of August in Pilot Rock is reliably fully within the growing season.
Time Spent in Various Temperature Bands and the Growing Season in August
The average accumulated growing degree days in Pilot Rock are rapidly increasing during August, increasing by 592°F, from 1,445°F to 2,038°F, over the course of the month.
Growing Degree Days in August
The average daily incident shortwave solar energy in Pilot Rock is decreasing during August, falling by 1.4 kWh, from 7.4 kWh to 6.0 kWh, over the course of the month.
Average Daily Incident Shortwave Solar Energy in August
For the purposes of this report, the geographical coordinates of Pilot Rock are 45.483 deg latitude, -118.830 deg longitude, and 1,837 ft elevation.
The topography within 2 miles of Pilot Rock contains significant variations in elevation, with a maximum elevation change of 571 feet and an average elevation above sea level of 1,777 feet. Within 10 miles contains significant variations in elevation (4,085 feet). Within 50 miles also contains extreme variations in elevation (8,399 feet).
The area within 2 miles of Pilot Rock is covered by cropland (43%), shrubs (32%), and grassland (21%), within 10 miles by shrubs (59%) and grassland (27%), and within 50 miles by shrubs (52%) and cropland (20%).
This report illustrates the typical weather in Pilot Rock 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 3 weather stations near enough to contribute to our estimation of the temperature and dew point in Pilot Rock.
For each station, the records are corrected for the elevation difference between that station and Pilot Rock 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 Pilot Rock is computed as the weighted average of the individual contributions from each station, with weights proportional to the inverse of the distance between Pilot Rock and a given station.
The stations contributing to this reconstruction are: Eastern Oregon Regional Airport (75%, 24 kilometers, north); Meacham, Meacham (19%, 32 kilometers, east); and John Day State Airport (7%, 121 kilometers, south).
Time zones for aiports and weather stations are provided by AskGeo.com .