Average Weather in January in Buttonwillow California, United States
Daily high temperatures increase by 4°F, from 60°F to 64°F, rarely falling below 52°F or exceeding 73°F.
Daily low temperatures increase by 2°F, from 39°F to 41°F, rarely falling below 30°F or exceeding 50°F.
For reference, on July 22, the hottest day of the year, temperatures in Buttonwillow typically range from 68°F to 98°F, while on December 30, the coldest day of the year, they range from 39°F to 60°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 Buttonwillow experiences essentially constant cloud cover, with the percentage of time that the sky is overcast or mostly cloudy remaining about 41% throughout the month.
The clearest day of the month is January 26, with clear, mostly clear, or partly cloudy conditions 60% of the time.
For reference, on February 21, the cloudiest day of the year, the chance of overcast or mostly cloudy conditions is 43%, while on August 9, 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 Buttonwillow, the chance of a wet day over the course of January is essentially constant, remaining around 18% throughout.
For reference, the year's highest daily chance of a wet day is 23% on February 21, and its lowest chance is 0% on July 2.
Probability of Precipitation in January
To show variation within the month and not just the monthly total, we show the rainfall accumulated over a sliding 31-day period centered around each day.
The average sliding 31-day rainfall during January in Buttonwillow is essentially constant, remaining about 1.9 inches throughout, and rarely exceeding 5.0 inches or falling below 0.1 inches.
Average Monthly Rainfall in January
Over the course of January in Buttonwillow, 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, 48 seconds.
The shortest day of the month is January 1, with 9 hours, 49 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 Buttonwillow is 7:07 AM on January 6 and the earliest sunrise is 9 minutes earlier at 6:58 AM on January 31.
The earliest sunset is 4:56 PM on January 1 and the latest sunset is 29 minutes later at 5:25 PM on January 31.
Daylight saving time is observed in Buttonwillow 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 5:43 AM and sets 14 hours, 33 minutes later, at 8:16 PM, while on December 21, the shortest day of the year, it rises at 7:03 AM and sets 9 hours, 46 minutes later, at 4:49 PM.
Sunrise & Sunset with Twilight in January
The chance that a given day will be muggy in Buttonwillow 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 Buttonwillow is essentially constant during January, remaining within 0.1 miles per hour of 5.0 miles per hour throughout.
For reference, on May 30, the windiest day of the year, the daily average wind speed is 7.0 miles per hour, while on November 7, the calmest day of the year, the daily average wind speed is 4.9 miles per hour.
The lowest daily average wind speed during January is 4.9 miles per hour on January 7.
Average Wind Speed in January
Wind Direction in January
Buttonwillow 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 Buttonwillow is essentially constant during January, remaining around 56°F throughout.
Average Water Temperature in January
The growing season in Buttonwillow typically lasts for 11 months (321 days), from around January 20 to around December 7, rarely starting after February 23, or ending before November 18.
During January in Buttonwillow, the chance that a given day is within the growing season is rapidly increasing rising from 23% to 66% over the course of the month.
Time Spent in Various Temperature Bands and the Growing Season in January
The average accumulated growing degree days in Buttonwillow are gradually increasing during January, increasing by 99°F, from 0°F to 99°F, over the course of the month.
Growing Degree Days in January
The average daily incident shortwave solar energy in Buttonwillow is gradually increasing during January, rising by 0.6 kWh, from 2.8 kWh to 3.4 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 Buttonwillow are 35.401 deg latitude, -119.470 deg longitude, and 272 ft elevation.
The topography within 2 miles of Buttonwillow is essentially flat, with a maximum elevation change of 46 feet and an average elevation above sea level of 273 feet. Within 10 miles is essentially flat (1,296 feet). Within 50 miles contains very significant variations in elevation (8,638 feet).
The area within 2 miles of Buttonwillow is covered by cropland (96%), within 10 miles by cropland (61%) and grassland (28%), and within 50 miles by grassland (41%) and cropland (32%).
This report illustrates the typical weather in Buttonwillow 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 Buttonwillow.
For each station, the records are corrected for the elevation difference between that station and Buttonwillow 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 Buttonwillow is computed as the weighted average of the individual contributions from each station, with weights proportional to the inverse of the distance between Buttonwillow and a given station.
The stations contributing to this reconstruction are: Meadows Field (54%, 38 kilometers, east); Santa Ynez Airport (12%, 104 kilometers, southwest); Santa Maria Airport (12%, 105 kilometers, southwest); San Luis Obispo County Airport (11%, 108 kilometers, west); and Paso Robles Municipal Airport (11%, 109 kilometers, west).
Time zones for aiports and weather stations are provided by AskGeo.com .