Average Weather in January in Kittitas Washington, United States
Daily high temperatures increase by 6°F, from 34°F to 39°F, rarely falling below 22°F or exceeding 49°F.
Daily low temperatures increase by 3°F, from 23°F to 26°F, rarely falling below 9°F or exceeding 35°F.
For reference, on August 1, the hottest day of the year, temperatures in Kittitas typically range from 59°F to 89°F, while on December 24, the coldest day of the year, they range from 23°F to 34°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 Kittitas experiences essentially constant cloud cover, with the percentage of time that the sky is overcast or mostly cloudy remaining about 64% throughout the month. The highest chance of overcast or mostly cloudy conditions is 65% on January 16.
The clearest day of the month is January 26, with clear, mostly clear, or partly cloudy conditions 37% 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 August 3, 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 Kittitas, the chance of a wet day over the course of January is decreasing, starting the month at 31% and ending it at 26%.
For reference, the year's highest daily chance of a wet day is 35% on November 28, and its lowest chance is 4% on August 5.
Over the course of January in Kittitas, the chance of a day with only rain increases from 8% to 13%, 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 15% to 7%.
Probability of Precipitation in January
The average sliding 31-day rainfall during January in Kittitas is essentially constant, remaining about 1.0 inches throughout, and rarely exceeding 2.4 inches or falling below 0.1 inches.
The lowest average 31-day accumulation is 0.9 inches on January 13.
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 Kittitas is gradually decreasing, starting the month at 1.1 inches, when it rarely exceeds 2.2 inches or falls below 0.2 inches, and ending the month at 0.7 inches, when it rarely exceeds 1.6 inches.
Average Monthly Liquid-Equivalent Snowfall in January
Over the course of January in Kittitas, the length of the day is increasing. From the start to the end of the month, the length of the day increases by 60 minutes, implying an average daily increase of 1 minute, 59 seconds, and weekly increase of 13 minutes, 55 seconds.
The shortest day of the month is January 1, with 8 hours, 36 minutes of daylight and the longest day is January 31, with 9 hours, 36 minutes of daylight.
Hours of Daylight and Twilight in January
The latest sunrise of the month in Kittitas is 7:47 AM on January 1 and the earliest sunrise is 20 minutes earlier at 7:27 AM on January 31.
The earliest sunset is 4:23 PM on January 1 and the latest sunset is 40 minutes later at 5:03 PM on January 31.
Daylight saving time is observed in Kittitas 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 5:06 AM and sets 15 hours, 54 minutes later, at 9:00 PM, while on December 21, the shortest day of the year, it rises at 7:44 AM and sets 8 hours, 31 minutes later, at 4:15 PM.
Sunrise & Sunset with Twilight in January
The chance that a given day will be muggy in Kittitas is essentially constant during January, remaining around 0% throughout.
For reference, on July 18, 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 January
The average hourly wind speed in Kittitas is essentially constant during January, remaining within 0.1 miles per hour of 5.2 miles per hour throughout.
For reference, on July 18, the windiest day of the year, the daily average wind speed is 6.7 miles per hour, while on December 21, the calmest day of the year, the daily average wind speed is 5.1 miles per hour.
Average Wind Speed in January
Wind Direction in January
The growing season in Kittitas typically lasts for 5.6 months (170 days), from around April 25 to around October 12, rarely starting before April 4 or after May 15, and rarely ending before September 22 or after November 1.
The month of January in Kittitas 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 Kittitas are essentially constant during January, remaining around 0°F throughout.
Growing Degree Days in January
The average daily incident shortwave solar energy in Kittitas is gradually increasing during January, rising by 0.6 kWh, from 1.3 kWh to 1.9 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 Kittitas are 46.983 deg latitude, -120.417 deg longitude, and 1,663 ft elevation.
The topography within 2 miles of Kittitas contains only modest variations in elevation, with a maximum elevation change of 348 feet and an average elevation above sea level of 1,660 feet. Within 10 miles contains only modest variations in elevation (2,559 feet). Within 50 miles contains large variations in elevation (8,862 feet).
The area within 2 miles of Kittitas is covered by cropland (89%), within 10 miles by shrubs (53%) and cropland (40%), and within 50 miles by shrubs (52%) and trees (20%).
This report illustrates the typical weather in Kittitas 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 Kittitas.
For each station, the records are corrected for the elevation difference between that station and Kittitas 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 Kittitas is computed as the weighted average of the individual contributions from each station, with weights proportional to the inverse of the distance between Kittitas and a given station.
The stations contributing to this reconstruction are: Bowers Field (87%, 10 kilometers, northwest); Yakima Air Terminal Airport (9%, 47 kilometers, south); and Hanford (4.1%, 78 kilometers, southeast).
Time zones for aiports and weather stations are provided by AskGeo.com .