Average Weather in July in Big Bear Lake California, United States
In Big Bear Lake, the month of July is characterized by essentially constant daily high temperatures, with daily highs around 80°F throughout the month, rarely exceeding 88°F or dropping below 72°F. The highest daily average high temperature is 81°F on July 27.
Daily low temperatures increase by 3°F, from 51°F to 54°F, rarely falling below 45°F or exceeding 60°F. The highest daily average low temperature is 54°F on July 30.
For reference, on July 27, the hottest day of the year, temperatures in Big Bear Lake typically range from 54°F to 81°F, while on December 25, the coldest day of the year, they range from 22°F to 43°F.
Average High and Low Temperature in July
The figure below shows you a compact characterization of the hourly average temperatures for the quarter of the year centered on July. 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 July
The month of July in Big Bear Lake experiences essentially constant cloud cover, with the percentage of time that the sky is overcast or mostly cloudy remaining about 14% throughout the month.
The clearest day of the month is July 1, with clear, mostly clear, or partly cloudy conditions 88% of the time.
For reference, on February 21, the cloudiest day of the year, the chance of overcast or mostly cloudy conditions is 46%, while on September 7, the clearest day of the year, the chance of clear, mostly clear, or partly cloudy skies is 89%.
Cloud Cover Categories in July
A wet day is one with at least 0.04 inches of liquid or liquid-equivalent precipitation. In Big Bear Lake, the chance of a wet day over the course of July is increasing, starting the month at 2% and ending it at 6%.
For reference, the year's highest daily chance of a wet day is 15% on February 21, and its lowest chance is 1% on June 14.
Probability of Precipitation in July
The average sliding 31-day rainfall during July in Big Bear Lake is essentially constant, remaining about 0.2 inches throughout, and rarely exceeding 0.8 inches or falling below -0.0 inches.
Average Monthly Rainfall in July
Over the course of July in Big Bear Lake, the length of the day is decreasing. From the start to the end of the month, the length of the day decreases by 33 minutes, implying an average daily decrease of 1 minute, 5 seconds, and weekly decrease of 7 minutes, 36 seconds.
The shortest day of the month is July 31, with 13 hours, 51 minutes of daylight and the longest day is July 1, with 14 hours, 24 minutes of daylight.
Hours of Daylight and Twilight in July
The earliest sunrise of the month in Big Bear Lake is 5:39 AM on July 1 and the latest sunrise is 19 minutes later at 5:58 AM on July 31.
The latest sunset is 8:03 PM on July 1 and the earliest sunset is 14 minutes earlier at 7:49 PM on July 31.
Daylight saving time is observed in Big Bear Lake during 2017, but it neither starts nor ends during July, so the entire month is in daylight saving time.
For reference, on June 21, the longest day of the year, the Sun rises at 5:36 AM and sets 14 hours, 27 minutes later, at 8:02 PM, while on December 21, the shortest day of the year, it rises at 6:49 AM and sets 9 hours, 52 minutes later, at 4:42 PM.
Sunrise & Sunset with Twilight in July
The chance that a given day will be muggy in Big Bear Lake is essentially constant during July, remaining around 0% throughout.
For reference, on August 10, 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 July
The average hourly wind speed in Big Bear Lake is gradually decreasing during July, decreasing from 7.8 miles per hour to 6.8 miles per hour over the course of the month.
For reference, on April 26, the windiest day of the year, the daily average wind speed is 8.7 miles per hour, while on September 8, the calmest day of the year, the daily average wind speed is 6.2 miles per hour.
Average Wind Speed in July
Wind Direction in July
Big Bear Lake 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 Big Bear Lake is gradually increasing during July, rising by 2°F, from 67°F to 69°F, over the course of the month.
Average Water Temperature in July
The average daily incident shortwave solar energy in Big Bear Lake is gradually decreasing during July, falling by 0.8 kWh, from 8.5 kWh to 7.8 kWh, over the course of the month.
Average Daily Incident Shortwave Solar Energy in July
For the purposes of this report, the geographical coordinates of Big Bear Lake are 34.244 deg latitude, -116.911 deg longitude, and 6,988 ft elevation.
The topography within 2 miles of Big Bear Lake contains very significant variations in elevation, with a maximum elevation change of 1,421 feet and an average elevation above sea level of 7,001 feet. Within 10 miles contains very significant variations in elevation (7,831 feet). Within 50 miles also contains extreme variations in elevation (11,447 feet).
The area within 2 miles of Big Bear Lake is covered by trees (63%), shrubs (18%), and water (18%), within 10 miles by trees (52%) and shrubs (45%), and within 50 miles by shrubs (79%).
This report illustrates the typical weather in Big Bear Lake 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 Big Bear Lake.
For each station, the records are corrected for the elevation difference between that station and Big Bear Lake 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 Big Bear Lake is computed as the weighted average of the individual contributions from each station, with weights proportional to the inverse of the distance between Big Bear Lake and a given station.
The stations contributing to this reconstruction are: San Bernardino International Airport (18%, 34 kilometers, southwest); Southern California Logistics Airport (27%, 57 kilometers, northwest); Palm Springs International Airport (14%, 60 kilometers, southeast); Twenty-Nine Palms, Marine Corps Air-Ground Combat Center (21%, 69 kilometers, east); and Barstow Daggett County Airport (20%, 69 kilometers, north).
Time zones for aiports and weather stations are provided by AskGeo.com .