Average Weather in January in Joseph Oregon, United States
Daily high temperatures increase by 3°F, from 29°F to 33°F, rarely falling below 18°F or exceeding 41°F.
Daily low temperatures increase by 2°F, from 19°F to 21°F, rarely falling below 5°F or exceeding 32°F.
For reference, on August 2, the hottest day of the year, temperatures in Joseph typically range from 49°F to 83°F, while on December 29, the coldest day of the year, they range from 19°F to 29°F.
Average High and Low Temperature in January
The figure below shows you a compact characterization of the hourly average temperatures for the quarter of the year centered on January. 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 January
The month of January in Joseph experiences essentially constant cloud cover, with the percentage of time that the sky is overcast or mostly cloudy remaining about 65% throughout the month. The highest chance of overcast or mostly cloudy conditions is 67% on January 10.
The clearest day of the month is January 30, with clear, mostly clear, or partly cloudy conditions 37% of the time.
For reference, on January 10, the cloudiest day of the year, the chance of overcast or mostly cloudy conditions is 67%, while on July 29, the clearest day of the year, the chance of clear, mostly clear, or partly cloudy skies is 82%.
Cloud Cover Categories in January
A wet day is one with at least 0.04 inches of liquid or liquid-equivalent precipitation. In Joseph, the chance of a wet day over the course of January is rapidly decreasing, starting the month at 30% and ending it at 24%.
For reference, the year's highest daily chance of a wet day is 33% on December 1, and its lowest chance is 7% on August 3.
Over the course of January in Joseph, the chance of a day with only rain remains an essentially constant 7% throughout, the chance of a day with mixed snow and rain remains an essentially constant 7% throughout, and the chance of a day with only snow decreases from 16% to 10%.
Probability of Precipitation in January
The average sliding 31-day rainfall during January in Joseph is essentially constant, remaining about 0.8 inches throughout, and rarely exceeding 2.0 inches or falling below 0.1 inches.
The lowest average 31-day accumulation is 0.7 inches on January 21.
Average Monthly Rainfall in January
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. As with rainfall, we consider the liquid-equivalent snowfall accumulated over a sliding 31-day period centered around each day.
The average sliding 31-day liquid-equivalent snowfall during January in Joseph is gradually decreasing, starting the month at 1.2 inches, when it rarely exceeds 2.2 inches or falls below 0.3 inches, and ending the month at 0.7 inches, when it rarely exceeds 1.5 inches or falls below 0.1 inches.
Average Monthly Liquid-Equivalent Snowfall in January
Over the course of January in Joseph, the length of the day is increasing. From the start to the end of the month, the length of the day increases by 56 minutes, implying an average daily increase of 1 minute, 51 seconds, and weekly increase of 13 minutes, 0 seconds.
The shortest day of the month is January 1, with 8 hours, 48 minutes of daylight and the longest day is January 31, with 9 hours, 44 minutes of daylight.
Hours of Daylight and Twilight in January
The latest sunrise of the month in Joseph is 7:28 AM on January 1 and the earliest sunrise is 18 minutes earlier at 7:10 AM on January 31.
The earliest sunset is 4:16 PM on January 1 and the latest sunset is 38 minutes later at 4:54 PM on January 31.
Daylight saving time is observed in Joseph during 2018, but it neither starts nor ends during January, so the entire month is in standard time.
For reference, on June 21, the longest day of the year, the Sun rises at 5:00 AM and sets 15 hours, 40 minutes later, at 8:40 PM, while on December 21, the shortest day of the year, it rises at 7:25 AM and sets 8 hours, 43 minutes later, at 4:08 PM.
Sunrise & Sunset with Twilight in January
The chance that a given day will be muggy in Joseph is essentially constant during January, remaining around 0% throughout.
Humidity Comfort Levels in January
The average hourly wind speed in Joseph is essentially constant during January, remaining within 0.2 miles per hour of 6.4 miles per hour throughout.
For reference, on December 30, the windiest day of the year, the daily average wind speed is 6.7 miles per hour, while on August 10, the calmest day of the year, the daily average wind speed is 4.1 miles per hour.
Average Wind Speed in January
Wind Direction in January
The growing season in Joseph typically lasts for 3.8 months (116 days), from around May 24 to around September 17, rarely starting before May 3 or after June 13, and rarely ending before August 30 or after October 5.
The month of January in Joseph is reliably fully outside of the growing season.
Time Spent in Various Temperature Bands and the Growing Season in January
The average accumulated growing degree days in Joseph are essentially constant during January, remaining around 0°F throughout.
Growing Degree Days in January
The average daily incident shortwave solar energy in Joseph is gradually increasing during January, rising by 0.7 kWh, from 1.4 kWh to 2.1 kWh, over the course of the month.
Average Daily Incident Shortwave Solar Energy in January
For the purposes of this report, the geographical coordinates of Joseph are 45.354 deg latitude, -117.230 deg longitude, and 4,206 ft elevation.
The topography within 2 miles of Joseph contains very significant variations in elevation, with a maximum elevation change of 883 feet and an average elevation above sea level of 4,198 feet. Within 10 miles contains very significant variations in elevation (6,293 feet). Within 50 miles also contains extreme variations in elevation (8,940 feet).
The area within 2 miles of Joseph is covered by cropland (63%), grassland (20%), and shrubs (16%), within 10 miles by shrubs (33%) and trees (28%), and within 50 miles by shrubs (51%) and trees (29%).
This report illustrates the typical weather in Joseph 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 5 weather stations near enough to contribute to our estimation of the temperature and dew point in Joseph.
For each station, the records are corrected for the elevation difference between that station and Joseph 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 Joseph is computed as the weighted average of the individual contributions from each station, with weights proportional to the inverse of the distance between Joseph and a given station.
The stations contributing to this reconstruction are: La Grande Municipal Airport (28%, 61 kilometers, west); Baker Municipal Airport (28%, 73 kilometers, southwest); McCall Airport (17%, 103 kilometers, southeast); Idaho County Airport (16%, 108 kilometers, northeast); and Lewiston–Nez Perce County Airport (11%, 115 kilometers, north).
Time zones for aiports and weather stations are provided by AskGeo.com .