Our Proprietary 10-Day Forecast

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Current warnings over Jefferson, Ohio
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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 Jefferson, Ohio 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 Jefferson, Ohio 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 Fairfield County, OH

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 Jefferson, Ohio

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 Jefferson, OH 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 Jefferson, OH

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 Jefferson, OH, 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 Jefferson, Ohio

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 Fairfield County, Ohio

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.
 
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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.
 
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Climate Summary
(made with AI, use with caution)
Jefferson, Ohio Climate Summary

Temperature

    •   Average annual temperature: 49.1°F (9.5°C)
    •   Average January temperature: 26.8°F (-2.9°C)
    •   Average July temperature: 70.9°F (21.6°C)
    •   Record high temperature: 103°F (39.4°C)
    •   Record low temperature: -23°F (-30.6°C)

Precipitation

    •   Average annual precipitation: 39.2 inches (996 mm)
    •   Average snowfall: 38.3 inches (973 mm)
    •   Wettest month: May (4.3 inches or 109 mm)
    •   Driest month: February (2.4 inches or 61 mm)

Humidity

    •   Average annual relative humidity: 72%
    •   Highest humidity: July (78%)
    •   Lowest humidity: February (65%)

Wind

    •   Average wind speed: 10.2 mph (16.4 km/h)
    •   Prevailing wind direction: West-southwest

Sunshine

    •   Average annual sunshine: 2,000 hours
    •   Sunniest month: July (248 hours)
    •   Cloudiest month: December (126 hours)

Climate Classification

    •   Humid continental climate (Köppen classification: Dfa)

Climate Summary

Jefferson, Ohio experiences a humid continental climate with warm, humid summers and cold, snowy winters. The average annual temperature is 49.1°F (9.5°C), with temperatures ranging from an average of 26.8°F (-2.9°C) in January to 70.9°F (21.6°C) in July. Precipitation is evenly distributed throughout the year, with an average of 39.2 inches (996 mm) annually. Snowfall is common during the winter months, averaging 38.3 inches (973 mm) per year. The humidity is typically high, with an average annual relative humidity of 72%. The prevailing wind direction is west-southwest, and the average wind speed is 10.2 mph (16.4 km/h). Jefferson receives an average of 2,000 hours of sunshine per year, with the sunniest months being July and August.

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

    •   Jefferson is home to the Ashtabula County Covered Bridge Festival, the largest covered bridge festival in the United States.

    •   The Jefferson Lake State Park, located just north of the city, offers scenic hiking trails and fishing opportunities.

    •   The city is situated at the confluence of the Ashtabula and Conneaut rivers, providing a rich habitat for diverse aquatic life.

Personalities

  • James A. Garfield:

    The 20th President of the United States lived in Jefferson for a short time as a child.

  • Dr. Samuel Guthrie:

    A prominent physician and inventor, Guthrie is credited with discovering chloroform as an anesthetic.

  • William Dean Howells:

    A renowned American author, Howells was born in Jefferson and spent his early years there.

    • Tourist Attractions
    1.Geneva-on-the-Lake

    (7 miles from Jefferson): A popular summer resort town on the shores of Lake Erie, known for its beaches, amusement park, and wineries.

    2.Ashtabula Harbor

    (10 miles from Jefferson): A historic port city with a charming downtown area, maritime museum, and lighthouse.

    3.Conneaut Lake Park

    (20 miles from Jefferson): A classic amusement park with rides, water slides, and a beach on Conneaut Lake.

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