Average Weather in Van Nuys California, United States
In Van Nuys, the summers are short, hot, arid, and clear and the winters are long, cool, wet, and partly cloudy. Over the course of the year, the temperature typically varies from 46°F to 89°F and is rarely below 38°F or above 99°F.
Based on the tourism score, the best time of year to visit Van Nuys for warm-weather activities is from late May to mid October.
The hot season lasts for 2.9 months, from June 28 to September 24, with an average daily high temperature above 85°F. The hottest day of the year is August 23, with an average high of 89°F and low of 65°F.
The cool season lasts for 3.8 months, from November 24 to March 18, with an average daily high temperature below 70°F. The coldest day of the year is December 25, with an average low of 46°F and high of 66°F.
Average High and Low Temperature
Average Hourly Temperature
In Van Nuys, the average percentage of the sky covered by clouds experiences significant seasonal variation over the course of the year.
The clearer part of the year in Van Nuys begins around April 24 and lasts for 6.3 months, ending around November 4. On September 7, the clearest day of the year, the sky is clear, mostly clear, or partly cloudy 91% of the time, and overcast or mostly cloudy 9% of the time.
The cloudier part of the year begins around November 4 and lasts for 5.7 months, ending around April 24. On February 22, the cloudiest day of the year, the sky is overcast or mostly cloudy 44% of the time, and clear, mostly clear, or partly cloudy 56% of the time.
Cloud Cover Categories
A wet day is one with at least 0.04 inches of liquid or liquid-equivalent precipitation. The chance of wet days in Van Nuys varies throughout the year.
The wetter season lasts 4.2 months, from November 23 to March 30, with a greater than 11% chance of a given day being a wet day. The chance of a wet day peaks at 21% on February 20.
The drier season lasts 7.8 months, from March 30 to November 23. The smallest chance of a wet day is 0% on July 2.
Among wet days, we distinguish between those that experience rain alone, snow alone, or a mixture of the two. Based on this categorization, the most common form of precipitation throughout the year is rain alone, with a peak probability of 21% on February 20.
Daily Chance of Precipitation
To show variation within the months and not just the monthly totals, we show the rainfall accumulated over a sliding 31-day period centered around each day of the year. Van Nuys experiences significant seasonal variation in monthly rainfall.
The rainy period of the year lasts for 6.3 months, from October 16 to April 26, with a sliding 31-day rainfall of at least 0.5 inches. The most rain falls during the 31 days centered around February 18, with an average total accumulation of 3.4 inches.
The rainless period of the year lasts for 5.7 months, from April 26 to October 16. The least rain falls around July 6, with an average total accumulation of 0.0 inches.
Average Monthly Rainfall
The length of the day in Van Nuys varies significantly over the course of the year. In 2018, the shortest day is December 21, with 9 hours, 52 minutes of daylight; the longest day is June 21, with 14 hours, 26 minutes of daylight.
Hours of Daylight and Twilight
The earliest sunrise is at 5:41 AM on June 11, and the latest sunrise is 1 hour, 34 minutes later at 7:15 AM on November 3. The earliest sunset is at 4:43 PM on December 5, and the latest sunset is 3 hours, 26 minutes later at 8:09 PM on June 29.
Daylight saving time (DST) is observed in Van Nuys during 2018, starting in the spring on March 11, lasting 7.8 months, and ending in the fall on November 4.
Sunrise & Sunset with Twilight and Daylight Saving Time
The perceived humidity level in Van Nuys, as measured by the percentage of time in which the humidity comfort level is muggy, oppressive, or miserable, does not vary significantly over the course of the year, staying within 2% of 2% throughout.
Humidity Comfort Levels
The average hourly wind speed in Van Nuys experiences significant seasonal variation over the course of the year.
The windier part of the year lasts for 6.0 months, from November 4 to May 4, with average wind speeds of more than 7.0 miles per hour. The windiest day of the year is December 31, with an average hourly wind speed of 9.0 miles per hour.
The calmer time of year lasts for 6.0 months, from May 4 to November 4. The calmest day of the year is August 14, with an average hourly wind speed of 5.1 miles per hour.
Average Wind Speed
The predominant average hourly wind direction in Van Nuys varies throughout the year.
The wind is most often from the west for 4.0 months, from March 19 to July 20 and for 2.3 months, from August 3 to October 12, with a peak percentage of 50% on May 23. The wind is most often from the south for 2.0 weeks, from July 20 to August 3, with a peak percentage of 41% on July 30. The wind is most often from the north for 5.2 months, from October 12 to March 19, with a peak percentage of 49% on January 1.
Van Nuys 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 water temperature experiences some seasonal variation over the course of the year.
The time of year with warmer water lasts for 3.3 months, from July 5 to October 14, with an average temperature above 66°F. The day of the year with the warmest water is August 20, with an average temperature of 68°F.
The time of year with cooler water lasts for 4.7 months, from December 11 to May 3, with an average temperature below 60°F. The day of the year with the coolest water is February 17, with an average temperature of 58°F.
Average Water Temperature
Best Time of Year to Visit
To characterize how pleasant the weather is in Van Nuys throughout the year, we compute two travel scores.
The tourism score favors clear, rainless days with perceived temperatures between 65°F and 80°F. Based on this score, the best time of year to visit Van Nuys for general outdoor tourist activities is from late May to mid October, with a peak score in the first week of July.
The beach/pool score favors clear, rainless days with perceived temperatures between 75°F and 90°F. Based on this score, the best time of year to visit Van Nuys for hot-weather activities is from mid July to mid September, with a peak score in the third week of August.
Temperatures in Van Nuys 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
Growing Degree Days
The brighter period of the year lasts for 3.9 months, from April 25 to August 21, with an average daily incident shortwave energy per square meter above 7.4 kWh. The brightest day of the year is June 18, with an average of 8.5 kWh.
The darker period of the year lasts for 3.2 months, from November 6 to February 12, with an average daily incident shortwave energy per square meter below 4.1 kWh. The darkest day of the year is December 26, with an average of 2.9 kWh.
Average Daily Incident Shortwave Solar Energy
For the purposes of this report, the geographical coordinates of Van Nuys are 34.187 deg latitude, -118.449 deg longitude, and 719 ft elevation.
The topography within 2 miles of Van Nuys contains only modest variations in elevation, with a maximum elevation change of 135 feet and an average elevation above sea level of 713 feet. Within 10 miles contains only modest variations in elevation (2,940 feet). Within 50 miles contains large variations in elevation (10,062 feet).
The area within 2 miles of Van Nuys is covered by artificial surfaces (92%), within 10 miles by artificial surfaces (63%) and shrubs (33%), and within 50 miles by shrubs (38%) and water (26%).
This report illustrates the typical weather in Van Nuys, 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 Van Nuys.
For each station, the records are corrected for the elevation difference between that station and Van Nuys 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 Van Nuys is computed as the weighted average of the individual contributions from each station, with weights proportional to the inverse of the distance between Van Nuys and a given station.
The stations contributing to this reconstruction are: Van Nuys Airport (67%, 4.5 kilometers, northwest); Burbank Bob Hope Airport (27%, 9 kilometers, east); and Santa Monica Municipal Airport (6%, 19 kilometers, south).
Time zones for aiports and weather stations are provided by AskGeo.com .