Our Proprietary 10-Day Forecast

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Current warnings over Londonderry, Vermont
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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 Londonderry, Vermont 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 Londonderry, Vermont 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 Windham County, VT

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 Londonderry, Vermont

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 Londonderry, VT 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 Londonderry, VT

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 Londonderry, VT, 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 Londonderry, Vermont

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 Windham County, Vermont

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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  • 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.
 
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Climate Summary
(made with AI, use with caution)
Londonderry, Vermont Climate Summary

General Climate

    •   Köppen Climate Classification

Dfb (Warm Summer Continental Climate)

    •   Average Annual Temperature

42.6°F (5.9°C)

    •   Average Annual Precipitation

44.2 inches (112.3 cm)

    •   Average Annual Snowfall

68.9 inches (175.0 cm)

Temperature

    •   Average January Temperature

19.2°F (-7.1°C)

    •   Average July Temperature

65.4°F (18.6°C)

    •   Record High Temperature

98°F (36.7°C)

    •   Record Low Temperature

-33°F (-36.1°C)

Precipitation

    •   Average Annual Precipitation

44.2 inches (112.3 cm)

    •   Average Number of Rainy Days

122

    •   Average Number of Snowy Days

60

    •   Record 24-Hour Precipitation

6.18 inches (15.7 cm)

Snowfall

    •   Average Annual Snowfall

68.9 inches (175.0 cm)

    •   Average Number of Days with Snowfall

60

    •   Record 24-Hour Snowfall

22.0 inches (55.9 cm)

Wind

    •   Average Annual Wind Speed

9.0 mph (14.5 km/h)

    •   Prevailing Wind Direction

West

Humidity

    •   Average Annual Relative Humidity

74%

Sunshine

    •   Average Annual Sunshine

2,066 hours

    •   Average Percent of Possible Sunshine

48%

Climate Summary

Londonderry, Vermont has a warm summer continental climate, with warm, humid summers and cold, snowy winters. The average annual temperature is 42.6°F (5.9°C), and the average annual precipitation is 44.2 inches (112.3 cm). The average annual snowfall is 68.9 inches (175.0 cm).

Summer temperatures in Londonderry are typically warm and humid, with average highs in the mid-70s to low 80s Fahrenheit (24-28°C). Nights are typically cool, with average lows in the mid-50s to low 60s Fahrenheit (13-17°C).

Winter temperatures in Londonderry are typically cold and snowy, with average highs in the mid-20s to low 30s Fahrenheit (-3 to 0°C). Nights are typically very cold, with average lows in the teens or single digits Fahrenheit (-8 to -12°C).

Londonderry receives an average of 44.2 inches (112.3 cm) of precipitation each year, which is fairly evenly distributed throughout the year. However, the town does receive more precipitation in the spring and fall than it does in the winter and summer.

Londonderry also receives an average of 68.9 inches (175.0 cm) of snowfall each year. The town typically receives the most snowfall in January and February, but it can snow anytime between October and April.

The climate in Londonderry is generally favorable for outdoor activities year-round. The warm summer months are ideal for swimming, hiking, and biking, while the cold winter months are perfect for skiing, snowboarding, and snowshoeing.

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

  • Windham Foundation:

    Londonderry is home to the Windham Foundation, a 500-acre nature preserve with diverse ecosystems, including forests, wetlands, and meadows.

  • Grout Brook:

    This scenic brook flows through Londonderry and supports a variety of aquatic life, including trout and salamanders.

    Science

  • Vermont Institute of Natural Science (VINS):

    VINS is a non-profit organization that conducts scientific research and education programs on wildlife and the environment.

  • Mount Snow Observatory:

    Located on Mount Snow, this observatory monitors atmospheric conditions and contributes to climate change research.

    Personalities

  • Dorothy Canfield Fisher:

    A renowned author and social activist, Fisher lived in Londonderry from 1925 until her death in 1958.

  • William Jarvis:

    A prominent physician and inventor, Jarvis developed the first smallpox vaccine in the United States in 1800.

  • Stephen A. Douglas:

    The \

    • Tourist Attractions
    1.Mount Snow Resort:

    A popular ski and snowboard destination, Mount Snow offers a variety of trails and terrain for all levels of skiers and riders. The resort also has a variety of other activities, including snowshoeing, cross-country skiing, and tubing.

    2.The Southern Vermont Arts Center:

    This non-profit arts organization offers a variety of exhibitions, classes, and workshops in the visual and performing arts. The center also has a gallery shop where visitors can purchase artwork by local and regional artists.

    3.The Vermont Country Store:

    This general store is a popular tourist destination for its unique selection of products, including candy, toys, and home goods. The store also has a restaurant and a bakery.

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    Arlington, VTPawlet, VT
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    Boston, MA
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    Cambridge, MAManchester, NH
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