Our Proprietary 10-Day Forecast

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Current warnings over Fullerton, California
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<p>Warnings from F5Weather</a></div>

United States weather warnings are issued by various organizations under NOAA. Most from the National Weather Service, but also Storm Prediction Center and National Hurricane Center.

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Current radar over Fullerton, California red dot
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<p>Live radar from F5Weather</a></div>

Our radar is based off of US NEXRAD and Canadian weather radar sites through the quality controlled MRMS system. It compiles various sources for radar data and filters out erroneous returns such as sun spikes and ground clutter. We then colorize the precipitation based on our methods for determining precipitation type. Rain is in shades of green, mixed precipitation and freezing rain in shades of pink and snow is in shades of blue.

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Current satellite over Fullerton, California red dot
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<p>Live satellite from F5Weather</a></div>

Our satellite is from the GOES-16. It is color enhanced by using a geocolor terrain background during the day and black marble city lights at night. The daytime satellite data is Visible satellite imagery, and nighttime uses Infrared bands. The bluish clouds are fog and low cloud. The whiteest clouds are the coldest, highest cloud tops.

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Current surface weather map around Orange County, CA

This surface map is from the HRRR computer model. It is a 1-hour forecast, updated hourly, which is a good estimate of the current surface conditions. This map shows the current high and low pressure centers, pressure isobar contours, wind streamlines and thickness contours. It also shows the currently depicted preciptiation estimates, although this should not be a substitute for actual live radar. The purple dashed contour is the 5400m thickness line, which is often a good proxy for the rain/snow line.

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Temperatures right now near Fullerton, California

This is the latest surface temperatures as depicted by the HRRR computer model, updated hourly. Although these are not actual observations, this model is a very good representation of current conditions as it factors in observations, terrain and physics to give you more detailed temperatures in areas that do not have reporting weather stations. For the latest reports at specific locations, like in Fullerton, CA please see our current conditions data on the left and right side of this page, or go to our current conditions page.

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Surface wind speed map over Fullerton, CA

This map shows the latest HRRR computer model winds. This depiction of the current wind directions and speeds is an estimate from the computer model. For actual observations in Fullerton, CA, see the current conditions data on the left and right side of this page, or go to our current conditions page.

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Regional 24 hour rainfall expected near Fullerton, California

This is a forecast of the amount of precipitation expected over the next 24 hours from the HRRR weather forecast model. This is only one forecast depiction, and you should check other models to get a better idea of what may happen. You can view this and other models in more detail on our main weather forecast maps page. There, you will also be able to look at forecasts beyond just 24 hours and look at forecasts out to as far as 16 days.

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Area snowfall accumulation expected around Orange County, California

This is snowfall forecast, with amounts anticipated in the next 24 hours. This guidance is from the HRRR weather model. For more model forecasts out to 16 days, visit our main weather forecast maps page.

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These are Convective Outlooks from the Storm Prediction Center. Click to see Days 1-3 broken down into Tornado, Wind and Hail threats, as well as days 5-8 outlooks.

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Atlantic Hurricane and Tropical Storm Tracking Map
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<p>Hurricane Tracking from F5Weather</a></div>

Our hurricane tracking map monitors for any current or forecast tropical disturbances in the Atlantic. (See our Pacific Hurricane Tracker) Various hurricane models will draw a 'spaghetti plot' in the Atlantic Basin when a disturbance is forecast or exists, showing the system's forecast track. Once a storm has developed, the National Hurricane Center will forecast their official track. This will show up on the map along with the storm's current intensity, track and name. We will also plot some of the storm's vitals and of course the spaghetti plots from the models along with the NHC forecast track will give you an idea of where it's heading, and its forecast intensity with time.

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To view the latest computer models, visit f5wx.com for access to the weather maps and guidance that meteorologists use to make their forecasts.
 
Get access to:
  • European ECMWF HRES
  • American GFS
  • Canadian GDPS GEM
  • German DWD ICON
  • British MetOffice's UKMET Unified Model
  • American NAM
  • American HRRR
  • American NBM - National Blend of Models
  • GEFS, GEPS, MOGREPS & European Ensembles
  • Probabilities & Averages
  • 3-Ensemble Mean & more!
View Skew-T soundings, textual data tables for your location, and of course maps! Weather forecast maps of the basics like temperature, wind, pressure, humidity, dew point, cloud cover, simulated radar, travel weather, rainfall and snow are available. More advanced users can also get use out of our severe weather & tornado threat maps, as well as upper air & shear graphics.
 
See the latest forecast data as the models update.
 
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Climate Summary
(made with AI, use with caution)
Fullerton, California Climate Summary

Temperature

    •   Average annual temperature: 62.6°F (17°C)
    •   Average summer temperature (June-August): 75.6°F (24.2°C)
    •   Average winter temperature (December-February): 49.6°F (9.8°C)
    •   Record high temperature: 117°F (47.2°C) set on July 6, 2021
    •   Record low temperature: 24°F (-4.4°C) set on January 10, 1949

Precipitation

    •   Average annual precipitation: 14.6 inches (371 mm)
    •   Average number of rainy days per year: 34
    •   Wettest month: February (3.1 inches or 79 mm)
    •   Driest month: July (0.04 inches or 1 mm)

Humidity

    •   Average annual relative humidity: 67%
    •   Highest average relative humidity: January (73%)
    •   Lowest average relative humidity: August (59%)

Wind

    •   Average annual wind speed: 5.8 mph (9.3 km/h)
    •   Prevailing wind direction: West-southwest

Sunshine

    •   Average annual sunshine: 3,126 hours
    •   Percentage of possible sunshine: 70%

Climate Classification

    •   Köppen climate classification: Csa (Mediterranean climate)

Overall

Fullerton, California has a Mediterranean climate with warm, dry summers and mild, wet winters. The city experiences moderate precipitation, with most of the rain falling during the winter months. The average annual temperature is 62.6°F (17°C), with average summer temperatures in the mid-70s Fahrenheit (low 20s Celsius) and average winter temperatures in the low 50s Fahrenheit (around 10°C). Fullerton is a sunny city, with an average of 3,126 hours of sunshine per year.

Facts & Historical Information
(made with AI, use with caution)
Natural History

    •   Fullerton is home to the Fullerton Arboretum, a 26-acre botanical garden featuring over 4,000 plant species from around the world.

    •   The city is located within the Puente Hills Wildlife Corridor, a critical habitat for migratory birds and other wildlife.

Science

    •   Fullerton is the birthplace of the California Institute of Technology (Caltech), one of the world's leading research universities.

    •   The city is also home to the Fullerton College Observatory, which offers public stargazing and astronomy programs.

Personalities

    •   Richard Nixon, the 37th President of the United States, was born in Fullerton in 1913.

    •   The city is named after George H. Fullerton, a prominent citrus grower and businessman who played a key role in its development.

    •   Fullerton was also home to the late actor, comedian, and singer Bob Hope, who lived there for many years.

Tourist Attractions
1.Disneyland Park:

Located just a short drive from Fullerton, Disneyland Park is one of the most popular theme parks in the world. It features classic rides, attractions, and characters from Disney movies and TV shows.

2.Knott's Berry Farm:

Another popular theme park near Fullerton, Knott's Berry Farm offers a variety of rides, shows, and attractions for all ages. It is also home to a large water park, Soak City.

3.Richard Nixon Presidential Library and Museum:

Located on the campus of California State University, Fullerton, the Richard Nixon Presidential Library and Museum houses a collection of artifacts and documents from Nixon's presidency. It also features exhibits on Nixon's life and career.

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