Five Weather Changes Typical In June in America | Weather.com (2024)

Thunderstorm Safety and Preparedness

By Linda Lam

7 days ago

Five Weather Changes Typical In June in America | Weather.com (1)

At a Glance

  • Tropical development typically arrives in June.
  • The threat of severe weather shifts north and the concern for flash flooding increases.
  • Temperatures heat up across most of the United States, but June gloom is expected in parts of California.

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June brings a notable shift from spring to summer and several weather changes to watch for across the United States.

Here are five things that typically happen in June:

1. Atlantic Hurricane Season Officially Begins

Atlantic hurricane season officially starts in June, although it's typically one of the quieter months of the season.

On average in the Atlantic Basin, one named storm forms every one to two years in June and a hurricane develops about once every five years.

(​MORE: Here's What Is Typical In June In Atlantic Hurricane Season)

In 2023, three tropical storms - Arlene, Bret and Cindy - formed, but only Bret had at least some modest rain and wind impact in the Lesser Antilles.

T​hree years ago, four storms formed (Bill, Claudette, Danny and Elsa), the most in any June during the satellite era, since the mid-1960s.

Early in the season, tropical storms most often form close to the U.S. and often affect the Southeast and/or the western Caribbean. Rain, rather than wind, is usually the biggest concern with June tropical cyclones.

(Further beef up your forecast with our detailed, hour-by-hour breakdown for the next 8 days – only available on our Premium Pro experience.)

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2. Tornado Threat Shifts Northward

June is typically an active month for tornadoes, the third busiest month by number over the past 20 years, behind only May and April. They can happen just about anywhere in the Lower 48, given the widespread warmth and humidity.

The area at highest risk of tornadoes in June stretches from Oklahoma into southwestern Minnesota.

I​n the Southeast, June tornadoes tend to be fewer, either along sea-breeze collisions closer to the coast or associated with landfalling tropical storms.

Peak hail activity also occurs in June, according to some studies. The Central and Southern Plains see an increase in hail during the early summer due to the increasing supply of hot and humid air.

(For even more granular weather data tracking in your area, view your 15-minute details forecast in our Premium Pro experience.)

3. Thunderstorms, Lightning And Flash Flooding Increase

Warm, humid air expands its reach in June, increasing the threat of pop-up thunderstorms in much of the East, South and Midwest. Clusters of thunderstorms, also called Mesoscale Convective Systems (MCS), often track across portions of the Central Plains into the Ohio and Tennessee valleys, especially from evening through the early morning hours.

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All these thunderstorms pose a danger of lightning strikes. June has the third-most lightning-related deaths over the past 10 years.

June thunderstorms are often efficient rain producers. Slower-moving weather systems, the emergence of tropical systems and the kickoff of the wet phase of the Southwest monsoon can all wring out heavy rain and flash flooding.

Five Weather Changes Typical In June in America | Weather.com (4)

4. Temperatures Heat Up

Temperatures and humidity levels continue to climb toward their peak later in summer in much of the U.S.

In early June, average high temperatures from Boston to New York are in the 70s and rise into the 80s by the end of the month. The average low in Washington, D.C. on June 1 is 63 degrees and climbs to 71 by June 30.

Chicago and Minneapolis experience average highs in the mid-70s in early June and reach the mid-80s by the start of July. Average lows are in the mid-60s for much of the Midwest by late June.

Dallas experiences average highs in the mid-90s by the end of June. Lows in the 70s are common by the end of the month across most of the South.

The average high in Denver jumps by 10 degrees during June and the average low rises from 49 to start June, to 57 on June 30. The average high by the month's end is 107 degrees in Phoenix and 91 in Sacramento, with average lows of 83 and 58, respectively.

(MORE: Here's When The First 90-Degree Highs Typically Happen)

Five Weather Changes Typical In June in America | Weather.com (5)

5. Where June Is Gloomy

"June gloom" occurs when the temperature drops and low clouds and fog move ashore during the morning hours in parts of Central and Southern California.

Cold, more humid air comes from the chilly ocean current that can be pushed onshore due to a pressure difference between high pressure off the California coast and a thermal low that develops inland due to intense heating.

Low clouds form and are pushed onto the beaches. This so-called marine layer can be deep enough at times that light rain showers develop.

These clouds usually clear by early afternoon as heating from the sun erodes the cold oceanic air.

M​ORE ON WEATHER.COM

-​ Hurricane Terms You Need To Know

-​ Why Weather Slows Down In Summer

-​ Tropical Destinations Where Hurricanes Are Less Likely

Linda Lam is a lead meteorologist at weather.com. Growing up in Massachusetts she developed a fascination for winter storms and hurricanes that led her to pursue a career in meteorology.

Five Weather Changes Typical In June in America | Weather.com (2024)

FAQs

What is the weather in the USA in June? ›

In June, the weather in the United States of America varies greatly due to its size and diverse landscapes. Generally, the country experiences warm and pleasant weather during this time, with some regions experiencing hot and dry conditions while others have milder temperatures and occasional rainfall.

What kind of weather is it in May in the USA? ›

In May, the average daily temperatures typically range between 60°F (16°C) and 80°F (27°C). The weather becomes more pleasant, and spring blooms are in full swing. Further south, in states like Florida, Louisiana, and Texas, May signifies the onset of warm and humid conditions.

Which season has the most unpredictable weather? ›

Weather can change quickly and spring is notorious for producing a broad range of extreme conditions. Major snowstorms, severe weather, flooding, big temperature changes and high winds are all common in the spring.

What weather event is most likely to occur in spring? ›

2. Tornado Threat Peaks. Tornado outbreaks are probably the weather event most often associated with spring. Tornado activity in the Lower 48 increases in March before peaking in April, May and June.

What season is it in June in America? ›

The Northern Hemisphere experiences summer during the months of June, July, and August because it is tilted toward the sun and receives the most direct sunlight.

Is June rainy season? ›

Using temperature and rainfall as bases, the climate of the country can be divided into two major seasons: (1) the rainy season, from June to November; and (2) the dry season, from December to May.

What month has the most severe weather? ›

Tornadoes can occur in the U.S. at any time throughout the year, but there's a distinct seasonal peak in tornadic activity, and it starts in April. Long-term severe weather records show April, May and June are the three most active months for tornadoes in the U.S.

What month has the hottest weather? ›

On average, July is the hottest month of the year for the contiguous United States.

What season is it most rainy? ›

Climate Central assessed seasonal precipitation patterns over the last 53 water years across the contiguous U.S. Parts of the West and Northwest receive most of their annual precipitation during winter, while the Plains, Upper Midwest, and parts of the Southwest rely far more on summer precipitation.

What season are storms most common? ›

Thunderstorms are most likely in the spring and summer months and during the afternoon and evening hours, but they can occur year-round and at all hours.

What time of year does extreme hail occur? ›

Not surprisingly, 73% (616 out of 840) significant hail reports occurred in the spring and early summer months (March through June). However, these events have occurred in each month of the year. >

What are two examples of types of unstable weather that can occur in spring? ›

The mental image of spring may be sunny days and a garden full of flowers, but that's not always the case. Spring is also known for producing a wide range of extreme weather – some including severe thunderstorms which lead to flooding, large temperature changes, high winds, and even snowstorms.

Is June a good month to visit USA? ›

The late spring in May and June is my favourite time of year to visit the northern half of the US. You'll find pleasant temperatures and sunny days, coupled with greater accessibility into national parks but without the crowds of the summer season.

What is the hottest month in US? ›

For the U.S. as a whole, July is the hottest month of the year. According to Brown, if you blend the warmest day of the year for every location in the Lower 48, July 26 is the average hottest date for the nation. Whoops!

Where is the best weather in June? ›

Where is hot in June?
  • Phuket (31.7 °C)
  • Athens (30.4 °C)
  • Madrid (30.1 °C)
  • Milan (28.5 °C)
  • Benidorm (27.7 °C)
  • Rome (27.1 °C)
  • Fuerteventura (26.4 °C)
  • Rio de Janeiro (25 °C)

What is the coldest state in June? ›

Since 1950, there are 6,256 combined days in June, July, and August. Alaska had the coldest temperature on only 1,460 of those days (23%). In other words, a state other than Alaska recorded the nation's lowest temperature 77% of all summer days!

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