Average Weather in Madras Oregon, United States
In Madras, 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 26°F to 87°F and is rarely below 14°F or above 96°F.
The hot season lasts for 2.8 months, from June 18 to September 13, with an average daily high temperature above 77°F. The hottest day of the year is July 30, with an average high of 87°F and low of 53°F.
The cold season lasts for 3.3 months, from November 14 to February 22, with an average daily high temperature below 50°F. The coldest day of the year is December 23, with an average low of 26°F and high of 41°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 Madras, 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 Madras begins around June 12 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 12. On January 16, the cloudiest day of the year, the sky is overcast or mostly cloudy 63% of the time, and clear, mostly clear, or partly cloudy 37% of the time.
A wet day is one with at least 0.04 inches of liquid or liquid-equivalent precipitation. The chance of wet days in Madras varies significantly throughout the year.
The wetter season lasts 5.7 months, from October 23 to April 14, with a greater than 22% chance of a given day being a wet day. The chance of a wet day peaks at 37% on November 29.
The drier season lasts 6.3 months, from April 14 to October 23. The smallest chance of a wet day is 6% on August 7.
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 31% on November 10.
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. Madras experiences some seasonal variation in monthly rainfall.
The rainy period of the year lasts for 9.6 months, from September 13 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 November 25, 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 13. The least rain falls around August 2, 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. Madras experiences some seasonal variation in monthly liquid-equivalent snowfall.
The snowy period of the year lasts for 3.6 months, from November 9 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 26, with an average total liquid-equivalent accumulation of 0.4 inches.
The snowless period of the year lasts for 8.5 months, from February 25 to November 9. The least snow falls around July 25, with an average total liquid-equivalent accumulation of 0.0 inches.
Average Liquid-Equivalent Monthly Snowfall
The length of the day in Madras varies significantly over the course of the year. In 2017, the shortest day is December 21, with 8 hours, 49 minutes of daylight; the longest day is June 21, with 15 hours, 34 minutes of daylight.
Hours of Daylight and Twilight
The earliest sunrise is at 5:18 AM on June 15, and the latest sunrise is 2 hours, 28 minutes later at 7:46 AM on November 4. The earliest sunset is at 4:24 PM on December 9, and the latest sunset is 4 hours, 30 minutes later at 8:53 PM on June 26.
Daylight saving time (DST) is observed in Madras 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
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 Madras, 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
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 Madras experiences mild seasonal variation over the course of the year.
The windier part of the year lasts for 7.7 months, from October 27 to June 19, with average wind speeds of more than 3.5 miles per hour. The windiest day of the year is December 1, with an average hourly wind speed of 4.0 miles per hour.
The calmer time of year lasts for 4.3 months, from June 19 to October 27. The calmest day of the year is August 23, with an average hourly wind speed of 2.9 miles per hour.
Average Wind Speed
The predominant average hourly wind direction in Madras varies throughout the year.
The wind is most often from the west for 7.7 months, from March 3 to October 24, with a peak percentage of 62% on June 8. The wind is most often from the south for 4.3 months, from October 24 to March 3, with a peak percentage of 53% on January 1.
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 3.3 months, from May 14 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 14, with an average of 7.9 kWh.
The darker period of the year lasts for 3.6 months, from October 27 to February 17, with an average daily incident shortwave energy per square meter below 2.8 kWh. The darkest day of the year is December 26, with an average of 1.4 kWh.
Average Daily Incident Shortwave Solar Energy
For the purposes of this report, the geographical coordinates of Madras are 44.633 deg latitude, -121.129 deg longitude, and 2,444 ft elevation.
The topography within 2 miles of Madras contains significant variations in elevation, with a maximum elevation change of 518 feet and an average elevation above sea level of 2,389 feet. Within 10 miles contains significant variations in elevation (2,799 feet). Within 50 miles contains large variations in elevation (9,839 feet).
The area within 2 miles of Madras is covered by shrubs (65%) and cropland (25%), within 10 miles by shrubs (71%) and cropland (25%), and within 50 miles by shrubs (67%) and trees (26%).
This report illustrates the typical weather in Madras, 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 Madras.
For each station, the records are corrected for the elevation difference between that station and Madras 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 Madras is computed as the weighted average of the individual contributions from each station, with weights proportional to the inverse of the distance between Madras and a given station.
The stations contributing to this reconstruction are: Roberts Field-Redmond Municipal Airport (60%, 42 kilometers, south); The Dalles Municipal Airport (13%, 110 kilometers, north); Portland–Troutdale Airport (9%, 143 kilometers, northwest); Aurora State Airport (9%, 146 kilometers, northwest); and McNary Field (9%, 151 kilometers, west).
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.