Average Weather in November in Walnut California, United States
Daily high temperatures decrease by 7°F, from 77°F to 70°F, rarely falling below 61°F or exceeding 89°F.
Daily low temperatures decrease by 7°F, from 53°F to 46°F, rarely falling below 40°F or exceeding 59°F.
For reference, on August 23, the hottest day of the year, temperatures in Walnut typically range from 65°F to 91°F, while on December 25, the coldest day of the year, they range from 44°F to 66°F.
Average High and Low Temperature in November
The figure below shows you a compact characterization of the hourly average temperatures for the quarter of the year centered on November. 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 November
The month of November in Walnut experiences increasing cloud cover, with the percentage of time that the sky is overcast or mostly cloudy increasing from 25% to 34%.
The clearest day of the month is November 1, with clear, mostly clear, or partly cloudy conditions 75% of the time.
For reference, on February 20, the cloudiest day of the year, the chance of overcast or mostly cloudy conditions is 44%, while on September 7, the clearest day of the year, the chance of clear, mostly clear, or partly cloudy skies is 91%.
Cloud Cover Categories in November
0% clear 20% mostly clear 40% partly cloudy 60% mostly cloudy 80% overcast 100%
A wet day is one with at least 0.04 inches of liquid or liquid-equivalent precipitation. In Walnut, the chance of a wet day over the course of November is gradually increasing, starting the month at 8% and ending it at 11%.
For reference, the year's highest daily chance of a wet day is 20% on February 19, and its lowest chance is 0% on June 23.
Probability of Precipitation in November
The average sliding 31-day rainfall during November in Walnut is increasing, starting the month at 0.7 inches, when it rarely exceeds 1.6 inches, and ending the month at 1.4 inches, when it rarely exceeds 3.1 inches.
Average Monthly Rainfall in November
Over the course of November in Walnut, the length of the day is decreasing. From the start to the end of the month, the length of the day decreases by 43 minutes, implying an average daily decrease of 1 minute, 29 seconds, and weekly decrease of 10 minutes, 23 seconds.
The shortest day of the month is November 30, with 10 hours, 4 minutes of daylight and the longest day is November 1, with 10 hours, 47 minutes of daylight.
Hours of Daylight and Twilight in November
The latest sunrise of the month in Walnut is 7:12 AM on November 3 and the earliest sunrise is 59 minutes earlier at 6:13 AM on November 4.
The latest sunset is 5:58 PM on November 1 and the earliest sunset is 1 hour, 16 minutes earlier at 4:42 PM on November 30.
Daylight saving time (DST) ends at 1:00 AM on November 4, 2018, shifting sunrise and sunset to be an hour earlier.
For reference, on June 21, the longest day of the year, the Sun rises at 5:40 AM and sets 14 hours, 25 minutes later, at 8:06 PM, while on December 21, the shortest day of the year, it rises at 6:53 AM and sets 9 hours, 53 minutes later, at 4:46 PM.
Sunrise & Sunset with Twilight and Daylight Saving Time in November
The chance that a given day will be muggy in Walnut is essentially constant during November, remaining around 0% throughout.
For reference, on August 5, the muggiest day of the year, there are muggy conditions 6% 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 November
dry 55°F comfortable 60°F humid 65°F muggy 70°F oppressive 75°F miserable
The average hourly wind speed in Walnut is increasing during November, increasing from 6.3 miles per hour to 7.4 miles per hour over the course of the month.
For reference, on December 31, the windiest day of the year, the daily average wind speed is 8.0 miles per hour, while on September 5, the calmest day of the year, the daily average wind speed is 5.2 miles per hour.
Average Wind Speed in November
Wind Direction in November
Walnut 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 Walnut is gradually decreasing during November, falling by 3°F, from 65°F to 62°F, over the course of the month.
Average Water Temperature in November
Temperatures in Walnut 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 November
The average accumulated growing degree days in Walnut are increasing during November, increasing by 299°F, from 4,756°F to 5,054°F, over the course of the month.
Growing Degree Days in November
The average daily incident shortwave solar energy in Walnut is gradually decreasing during November, falling by 1.0 kWh, from 4.3 kWh to 3.3 kWh, over the course of the month.
Average Daily Incident Shortwave Solar Energy in November
For the purposes of this report, the geographical coordinates of Walnut are 34.020 deg latitude, -117.865 deg longitude, and 646 ft elevation.
The topography within 2 miles of Walnut contains very significant variations in elevation, with a maximum elevation change of 840 feet and an average elevation above sea level of 649 feet. Within 10 miles contains very significant variations in elevation (2,605 feet). Within 50 miles contains large variations in elevation (10,062 feet).
The area within 2 miles of Walnut is covered by artificial surfaces (82%) and shrubs (16%), within 10 miles by artificial surfaces (73%) and shrubs (19%), and within 50 miles by shrubs (47%) and artificial surfaces (24%).
This report illustrates the typical weather in Walnut 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 4 weather stations near enough to contribute to our estimation of the temperature and dew point in Walnut.
For each station, the records are corrected for the elevation difference between that station and Walnut 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 Walnut is computed as the weighted average of the individual contributions from each station, with weights proportional to the inverse of the distance between Walnut and a given station.
The stations contributing to this reconstruction are: Fullerton Municipal Airport (28%, 20 kilometers, southwest); Ontario International Airport (33%, 21 kilometers, east); Chino Airport (36%, 22 kilometers, east); and Mount Wilson (1.9%, 30 kilometers, northwest).
Time zones for aiports and weather stations are provided by AskGeo.com .