Average Weather in January in Los Osos California, United States
Daily high temperatures are around 62°F, rarely falling below 55°F or exceeding 71°F.
Daily low temperatures are around 44°F, rarely falling below 36°F or exceeding 53°F.
For reference, on September 11, the hottest day of the year, temperatures in Los Osos typically range from 55°F to 74°F, while on December 27, the coldest day of the year, they range from 44°F to 62°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 Los Osos experiences essentially constant cloud cover, with the percentage of time that the sky is overcast or mostly cloudy remaining about 44% throughout the month.
The clearest day of the month is January 26, with clear, mostly clear, or partly cloudy conditions 58% of the time.
For reference, on February 17, the cloudiest day of the year, the chance of overcast or mostly cloudy conditions is 46%, while on August 24, the clearest day of the year, the chance of clear, mostly clear, or partly cloudy skies is 92%.
Cloud Cover Categories in January
A wet day is one with at least 0.04 inches of liquid or liquid-equivalent precipitation. In Los Osos, the chance of a wet day over the course of January is essentially constant, remaining around 20% throughout.
For reference, the year's highest daily chance of a wet day is 25% on February 20, and its lowest chance is 0% on July 27.
Probability of Precipitation in January
The average sliding 31-day rainfall during January in Los Osos is essentially constant, remaining about 2.6 inches throughout, and rarely exceeding 6.3 inches or falling below 0.1 inches.
Average Monthly Rainfall in January
Over the course of January in Los Osos, the length of the day is increasing. From the start to the end of the month, the length of the day increases by 38 minutes, implying an average daily increase of 1 minute, 15 seconds, and weekly increase of 8 minutes, 46 seconds.
The shortest day of the month is January 1, with 9 hours, 50 minutes of daylight and the longest day is January 31, with 10 hours, 27 minutes of daylight.
Hours of Daylight and Twilight in January
The latest sunrise of the month in Los Osos is 7:12 AM on January 6 and the earliest sunrise is 9 minutes earlier at 7:03 AM on January 31.
The earliest sunset is 5:02 PM on January 1 and the latest sunset is 29 minutes later at 5:30 PM on January 31.
Daylight saving time is observed in Los Osos 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 5:48 AM and sets 14 hours, 33 minutes later, at 8:21 PM, while on December 21, the shortest day of the year, it rises at 7:08 AM and sets 9 hours, 46 minutes later, at 4:54 PM.
Sunrise & Sunset with Twilight in January
The chance that a given day will be muggy in Los Osos is essentially constant during January, remaining around 0% throughout.
For reference, on July 6, 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 Los Osos is essentially constant during January, remaining within 0.1 miles per hour of 8.5 miles per hour throughout.
For reference, on May 24, the windiest day of the year, the daily average wind speed is 10.2 miles per hour, while on September 16, the calmest day of the year, the daily average wind speed is 7.6 miles per hour.
The lowest daily average wind speed during January is 8.4 miles per hour on January 13.
Average Wind Speed in January
Wind Direction in January
Los Osos is located near a large body of water (e.g., ocean, sea, or large lake). This section reports on the wide-area average surface temperature of that water.
The average surface water temperature in Los Osos is essentially constant during January, remaining around 56°F throughout.
Average Water Temperature in January
Temperatures in Los Osos are sufficiently warm year round that it is not entirely meaningful to discuss the growing season in these terms. We nevertheless include the chart below as an illustration of the distribution of temperatures experienced throughout the year.
Time Spent in Various Temperature Bands and the Growing Season in January
The average accumulated growing degree days in Los Osos are gradually increasing during January, increasing by 128°F, from 0°F to 128°F, over the course of the month.
Growing Degree Days in January
The average daily incident shortwave solar energy in Los Osos is gradually increasing during January, rising by 0.6 kWh, from 2.7 kWh to 3.3 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 Los Osos are 35.311 deg latitude, -120.832 deg longitude, and 138 ft elevation.
The topography within 2 miles of Los Osos contains very significant variations in elevation, with a maximum elevation change of 1,079 feet and an average elevation above sea level of 220 feet. Within 10 miles contains very significant variations in elevation (2,762 feet). Within 50 miles contains large variations in elevation (4,236 feet).
The area within 2 miles of Los Osos is covered by artificial surfaces (34%), herbaceous vegetation (17%), cropland (13%), and grassland (12%), within 10 miles by water (37%) and grassland (31%), and within 50 miles by water (44%) and grassland (32%).
This report illustrates the typical weather in Los Osos 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 Los Osos.
For each station, the records are corrected for the elevation difference between that station and Los Osos 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 Los Osos is computed as the weighted average of the individual contributions from each station, with weights proportional to the inverse of the distance between Los Osos and a given station.
The stations contributing to this reconstruction are: San Luis Obispo County Airport (69%, 19 kilometers, southeast); Paso Robles Municipal Airport (17%, 44 kilometers, northeast); and Point Piedras Blanca (14%, 57 kilometers, northwest).
Time zones for aiports and weather stations are provided by AskGeo.com .