The overall weather in the United States in June can be summarized as warm and sunny, with occasional showers and thunderstorms. The average temperature across the country is 71 degrees Fahrenheit (21 degrees Celsius), with the highest temperatures in the Southwest and the lowest temperatures in the Northeast.
Approximately 15.2 percent of the contiguous U.S. observed its warmest June on record. This is the largest extent of record warm temperatures on record for the U.S. Temperatures were near to below average across portions of the Deep South and Southeast.
Average Low & High Temperature of US June
Here is a more detailed breakdown of the weather in June across different regions of the United States:
Southwest:
- Hot and dry, with average temperatures in the 90s Fahrenheit (30s Celsius)
- Little rainfall, with the exception of some monsoon storms in Arizona and New Mexico
West Coast:
- Mild and sunny, with average temperatures in the 70s Fahrenheit (20s Celsius)
- Foggy mornings are common along the coast
- Rainfall is more frequent in the north than in the south
Midwest:
- Warm and humid, with average temperatures in the 80s Fahrenheit (20s Celsius)
- Frequent thunderstorms, especially in the afternoon
- Rainfall is evenly distributed throughout the region
Northeast:
- Warm and humid, with average temperatures in the 70s Fahrenheit (20s Celsius)
- Occasional showers and thunderstorms
- Rainfall is more frequent in the coastal areas than in the inland areas
Southeast:
- Hot and humid, with average temperatures in the 80s Fahrenheit (20s Celsius)
- Frequent thunderstorms, especially in the afternoon
- Rainfall is evenly distributed throughout the region
In general, temperature decreases towards the polar region and increases closer to the equator. Meanwhile, the milder states are in the middle latitudes. States like Wyoming and Colorado have relatively cool climates because of their elevation. Meanwhile, southern states like Florida and Texas have higher mean annual daily minimum temperatures.