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Average Weather in Redmond Oregon, United States

In Redmond, the summers are short, warm, dry, and mostly clear and the winters are chilly and partly cloudy. Over the course of the year, the temperature typically varies from 24°F to 87°F and is rarely below 11°F or above 96°F.

The hot season lasts for 2.7 months, from June 22 to September 12, with an average daily high temperature above 78°F. The hottest day of the year is August 3, with an average high of 87°F and low of 50°F.

The cold season lasts for 3.4 months, from November 13 to February 25, with an average daily high temperature below 50°F. The coldest day of the year is December 23, with an average low of 24°F and high of 41°F.

Average High and Low Temperature

The daily average high (red line) and low (blue line) temperature, with 25th to 75th and 10th to 90th percentile bands. The thin dotted lines are the corresponding average perceived temperatures.

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

Average Hourly Temperature in Redmond12 AM4 AM8 AM12 PM4 PM8 PM12 AMJanFebMarAprMayJunJulAugSepOctNovDecfreezingchillycoldcoolcomfortablewarm
The average hourly temperature, color coded into bands: frigid < 15°F < freezing < 32°F < chilly < 45°F < cold < 55°F < cool < 65°F < comfortable < 75°F < warm < 85°F < hot < 95°F < sweltering. The shaded overlays indicate night and civil twilight.

Clouds

In Redmond, 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 Redmond begins around June 13 and lasts for 3.8 months, ending around October 7. On July 28, the clearest day of the year, the sky is clear, mostly clear, or partly cloudy 84% of the time, and overcast or mostly cloudy 16% 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 62% of the time, and clear, mostly clear, or partly cloudy 38% of the time.

Cloud Cover

Cloud Cover in Redmondclearercloudiercloudier0%10%20%30%40%50%60%70%80%90%100%JanFebMarAprMayJunJulAugSepOctNovDecJan 1662%Jan 1662%Jul 2816%Jul 2816%Jun 1339%Jun 1339%Oct 739%Oct 739%overcastmostly cloudypartly cloudymostly clearclear
The percentage of time spent in each cloud cover band, categorized by the percentage of the sky covered by clouds: clear < 20% < mostly clear < 40% < partly cloudy < 60% < mostly cloudy < 80% < overcast.

Precipitation

A wet day is one with at least 0.04 inches of liquid or liquid-equivalent precipitation. The chance of wet days in Redmond varies significantly throughout the year.

The wetter season lasts 5.7 months, from October 23 to April 13, with a greater than 22% chance of a given day being a wet day. The chance of a wet day peaks at 38% on November 30.

The drier season lasts 6.3 months, from April 13 to October 23. The smallest chance of a wet day is 5% on August 6.

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 18.

Daily Chance of Precipitation

Daily Chance of Precipitation in Redmondwetwetdry0%10%20%30%40%50%60%70%80%90%100%JanFebMarAprMayJunJulAugSepOctNovDecNov 3038%Nov 3038%Aug 65%Aug 65%Oct 2322%Oct 2322%Apr 1322%Apr 1322%snowrain
The percentage of days in which various types of precipitation are observed, excluding trace quantities: rain alone, snow alone, and mixed (both rain and snow fell in the same day).

Rainfall

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. Redmond experiences significant seasonal variation in monthly rainfall.

The rainy period of the year lasts for 9.6 months, from September 14 to July 1, with a sliding 31-day rainfall of at least 0.5 inches. The most rain falls during the 31 days centered around December 1, with an average total accumulation of 2.3 inches.

The rainless period of the year lasts for 2.4 months, from July 1 to September 14. The least rain falls around August 9, with an average total accumulation of 0.3 inches.

Average Monthly Rainfall

The average rainfall (solid line) accumulated over the course of a sliding 31-day period centered on the day in question, with 25th to 75th and 10th to 90th percentile bands. The thin dotted line is the corresponding average liquid-equivalent snowfall.

Snowfall

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. Redmond experiences some seasonal variation in monthly liquid-equivalent snowfall.

The snowy period of the year lasts for 4.2 months, from November 1 to March 8, 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 20, with an average total liquid-equivalent accumulation of 0.5 inches.

The snowless period of the year lasts for 7.8 months, from March 8 to November 1. The least snow falls around July 24, with an average total liquid-equivalent accumulation of 0.0 inches.

Average Liquid-Equivalent Monthly Snowfall

Average Liquid-Equivalent Monthly Snowfall in Redmondsnowsnow0.0 in0.5 in1.0 in1.5 in2.0 in2.5 inJanFebMarAprMayJunJulAugSepOctNovDecDec 200.5 inDec 200.5 inJul 240.0 inJul 240.0 inNov 10.1 inNov 10.1 inMar 80.1 inMar 80.1 in
The average liquid-equivalent snowfall (solid line) accumulated over the course of a sliding 31-day period centered on the day in question, with 25th to 75th and 10th to 90th percentile bands. The thin dotted line is the corresponding average rainfall.

Sun

The length of the day in Redmond varies significantly over the course of the year. In 2017, the shortest day is December 21, with 8 hours, 51 minutes of daylight; the longest day is June 21, with 15 hours, 31 minutes of daylight.

Hours of Daylight and Twilight

The number of hours during which the Sun is visible (black line). From bottom (most yellow) to top (most gray), the color bands indicate: full daylight, twilight (civil, nautical, and astronomical), and full night.

The earliest sunrise is at 5:20 AM on June 15, and the latest sunrise is 2 hours, 26 minutes later at 7:46 AM on November 4. The earliest sunset is at 4:25 PM on December 9, and the latest sunset is 4 hours, 27 minutes later at 8:52 PM on June 26.

Daylight saving time (DST) is observed in Redmond during 2017, starting in the spring on March 12, lasting 7.8 months, and ending in the fall on November 5.

Sunrise & Sunset with Twilight and Daylight Saving Time

Sunrise & Sunset with Twilight and Daylight Saving Time in Redmond12 AM2 AM4 AM6 AM8 AM10 AM12 PM2 PM4 PM6 PM8 PM10 PM12 AMJanFebMarAprMayJunJulAugSepOctNovDecJun 155:20 AMJun 155:20 AM8:52 PMJun 268:52 PMJun 26Dec 94:25 PMDec 94:25 PM7:46 AMNov 47:46 AMNov 4Mar 12DSTMar 12DSTDSTNov 5DSTNov 5daynightnightnightnight
The solar day over the course of the year 2017. From bottom to top, the black lines are the previous solar midnight, sunrise, solar noon, sunset, and the next solar midnight. The day, twilights (civil, nautical, and astronomical), and night are indicated by the color bands from yellow to gray. The transitions to and from daylight saving time are indicated by the 'DST' labels.

Humidity

We base the humidity comfort level on the dew point, as it determines whether perspiration will evaporate from the skin, thereby cooling the body. Lower dew points feel drier and higher dew points feel more humid. Unlike temperature, which typically varies significantly between night and day, dew point tends to change more slowly, so while the temperature may drop at night, a muggy day is typically followed by a muggy night.

The perceived humidity level in Redmond, 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

Humidity Comfort Levels in Redmond0%10%20%30%40%50%60%70%80%90%100%JanFebMarAprMayJunJulAugSepOctNovDecFeb 270%Feb 270%Aug 290%Aug 290%drydrycomfortablecomfortable
The percentage of time spent at various humidity comfort levels, categorized by dew point: dry < 55°F < comfortable < 60°F < humid < 65°F < muggy < 70°F < oppressive < 75°F < miserable.

Wind

This section discusses the wide-area hourly average wind vector (speed and direction) at 10 meters above the ground. The wind experienced at any given location is highly dependent on local topography and other factors, and instantaneous wind speed and direction vary more widely than hourly averages.

The average hourly wind speed in Redmond experiences mild seasonal variation over the course of the year.

The windier part of the year lasts for 6.8 months, from October 24 to May 19, with average wind speeds of more than 3.6 miles per hour. The windiest day of the year is December 1, with an average hourly wind speed of 4.3 miles per hour.

The calmer time of year lasts for 5.2 months, from May 19 to October 24. The calmest day of the year is August 12, with an average hourly wind speed of 2.9 miles per hour.

Average Wind Speed

The average of mean hourly wind speeds (dark gray line), with 25th to 75th and 10th to 90th percentile bands.

The predominant average hourly wind direction in Redmond varies throughout the year.

The wind is most often from the west for 7.2 months, from March 11 to October 17, with a peak percentage of 55% on June 8. The wind is most often from the south for 4.8 months, from October 17 to March 11, with a peak percentage of 59% on January 1.

Wind Direction

Wind Direction in RedmondSWS0%20%40%60%80%100%JanFebMarAprMayJunJulAugSepOctNovDecwestsoutheastnorth
The percentage of hours in which the mean wind direction is from each of the four cardinal wind directions (north, east, south, and west), excluding hours in which the mean wind speed is less than 1 mph. The lightly tinted areas at the boundaries are the percentage of hours spent in the implied intermediate directions (northeast, southeast, southwest, and northwest).

Solar Energy

This section discusses the total daily incident shortwave solar energy reaching the surface of the ground over a wide area, taking full account of seasonal variations in the length of the day, the elevation of the Sun above the horizon, and absorption by clouds and other atmospheric constituents. Shortwave radiation includes visible light and ultraviolet radiation.

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 3.4 months, from May 13 to August 24, with an average daily incident shortwave energy per square meter above 6.6 kWh. The brightest day of the year is July 1, with an average of 8.0 kWh.

The darker period of the year lasts for 3.6 months, from October 28 to February 16, with an average daily incident shortwave energy per square meter below 2.8 kWh. The darkest day of the year is December 15, with an average of 1.5 kWh.

Average Daily Incident Shortwave Solar Energy

Average Daily Incident Shortwave Solar Energy in Redmondbrightdarkdark0 kWh1 kWh2 kWh3 kWh4 kWh5 kWh6 kWh7 kWh8 kWh9 kWh10 kWhJanFebMarAprMayJunJulAugSepOctNovDecJul 18.0 kWhJul 18.0 kWhDec 151.5 kWhDec 151.5 kWhMay 136.6 kWhMay 136.6 kWhAug 246.6 kWhAug 246.6 kWhOct 282.8 kWhOct 282.8 kWhFeb 162.8 kWhFeb 162.8 kWh
The average daily shortwave solar energy reaching the ground per square meter (orange line), with 25th to 75th and 10th to 90th percentile bands.

Topography

For the purposes of this report, the geographical coordinates of Redmond are 44.273 deg latitude, -121.174 deg longitude, and 3,018 ft elevation.

The topography within 2 miles of Redmond contains only modest variations in elevation, with a maximum elevation change of 203 feet and an average elevation above sea level of 3,015 feet. Within 10 miles contains only modest variations in elevation (2,044 feet). Within 50 miles contains large variations in elevation (9,295 feet).

The area within 2 miles of Redmond is covered by shrubs (61%) and artificial surfaces (34%), within 10 miles by shrubs (74%) and cropland (21%), and within 50 miles by shrubs (62%) and trees (33%).

Data Sources

This report illustrates the typical weather in Redmond, 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 Redmond.

For each station, the records are corrected for the elevation difference between that station and Redmond 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 Redmond is computed as the weighted average of the individual contributions from each station, with weights proportional to the inverse of the distance between Redmond and a given station.

The stations contributing to this reconstruction are: Roberts Field-Redmond Municipal Airport (99%, 3.3 kilometers, southeast); The Dalles Municipal Airport (0.3%, 150 kilometers, north); McNary Field (0.3%, 161 kilometers, northwest); and Aurora State Airport (0.3%, 166 kilometers, northwest).

Other Data

All data relating to the Sun's position (e.g., sunrise and sunset) are computed using astronomical formulas from the book, Astronomical Tables of the Sun, Moon and Planets , by Jean Meeus.

All other weather data, including cloud cover, precipitation, wind speed and direction, and solar flux, come from NASA's MERRA-2 Modern-Era Retrospective Analysis . This reanalysis combines a variety of wide-area measurements in a state-of-the-art global meteorological model to reconstruct the hourly history of weather throughout the world on a 50-kilometer grid.

Land Use data comes from the Global Land Cover SHARE database , published by the Food and Agriculture Organization of the United Nations.

Elevation data comes from the Shuttle Radar Topography Mission (SRTM) , published by NASA's Jet Propulsion Laboratory.

Names, locations, and time zones of places and some airports come from the GeoNames Geographical Database .

Time zones for aiports and weather stations are provided by AskGeo.com .

Maps are © Esri, with data from National Geographic, Esri, DeLorme, NAVTEQ, UNEP-WCMC, USGS, NASA, ESA, METI, NRCAN, GEBCO, NOAA, and iPC.