The best times to visit the United States for ideal weather are
April 23rd to October 21st
based on average temperature and humidity from NOAA (the National Oceanic and Atmospheric Administration). Read below for more weather and travel details.
the United States Travel Guide
Weather in the United States
Average temperatures in the United States vary somewhat and are seasonally temperate. The area is in the top 58 percent of tourist destinations for pleasant weather. Weeks with ideal weather are listed above. If you’re looking for the very warmest time to visit the United States, the hottest months are July, August, and then June. See average monthly temperatures below. The warmest time of year is generally early August where highs are regularly around 84.4°F (29.1°C) with temperatures rarely dropping below 64.6°F (18.1°C) at night.
the United States Temperatures (Fahrenheit)
the United States Temperatures (Celsius)
The way we experience weather isn’t all about temperature. Higher temperatures affect us much more at higher humidity, and colder temperatures feel piercing with high winds. Our perceived temperatures factor in humidity and wind chill to better represent how hot or cold the day feels to a person.
the United States Perceived Temperature (F)
the United States Perceived Temperature (C)
Average the United States Temperatures by Month
Daily highs (averaged for the month) usually give the best indication of the weather. A significantly lower mean and low generally just means it gets colder at night.
|Month||Avg. High (°F)||Avg. Mean (°F)||Avg. Low (°F)|
|Month||Avg. High (°C)||Avg. Mean (°C)||Avg. Low (°C)|
Precipitation (Rain or Snow)
If dry weather is what you’re after, the months with the lowest chance of precipitation in the United States are December, June, and then May. The lowest chance of rain or snow occurs around mid-January. For example, on the week of January 15th there are only 1 days of precipitation on average. By contrast, it’s most likely to rain or snow in late April with an average of 1.3 days with significant precipitation the week of April 23rd.
When can you find snow in the United States? Weather stations report quite a lot of snow likely to be deepest around February, especially close to late July. Powder (new snow) is most often falls around July 23rd. Please note that a value of 0 for snow in the graph below may either mean there was no snow, or that snow is unreported.
Chance of Precipitation
The graph below shows the % chance of rainy and snowy days in the United States.
Snow on the Ground
The graph below shows the average snow on the ground in the United States (in).
Average Rain and Snow by Month
|Month||Daily Chance of Rain||Average Snow Depth (in)||Total Precipitation (in)|
|Month||Daily Chance of Rain||Average Snow Depth (cm)||Total Precipitation (cm)|
Humidity and Wind
the United States has slightly low to average humidity compared to most tourist destinations. The least humid month is April (53.4% relative humidity), and the most humid month is December (65.5%).
Wind in the United States is usually moderate. The windiest month is April, followed by March and February. April’s average wind speed of around 8 knots (9.2 MPH or 14.8 KPH) is considered “gentle breeze.” Maximum sustained winds (the highest speed for the day lasting more than a few moments) are at their highest in early-to-mid-April where average top sustained speeds reach 15.9 knots, which is considered a moderate breeze.
Relative Humidity (%)
The graph below shows the average % humidity by month in the United States.
The graph below shows wind speed (max and average) in knots.
Average Wind Speeds
Show Wind Speeds
All wind speeds are in knots.
|Month||Avg. Wind||Meaning (Beaufort)||Avg. Maximum Sustained Wind||Meaning (Beufort)|
|Jan||7.5||a gentle breeze||14.5||a moderate breeze|
|Feb||7.7||a gentle breeze||14.9||a moderate breeze|
|Mar||7.8||a gentle breeze||15.1||a moderate breeze|
|Apr||8||a gentle breeze||15.6||a moderate breeze|
|May||7.2||a gentle breeze||14.4||a moderate breeze|
|Jun||6.6||a light breeze||13.8||a moderate breeze|
|Jul||5.9||a light breeze||12.9||a moderate breeze|
|Aug||5.7||a light breeze||12.4||a moderate breeze|
|Sep||6.1||a light breeze||12.6||a moderate breeze|
|Oct||6.8||a light breeze||13.5||a moderate breeze|
|Nov||7.3||a gentle breeze||14||a moderate breeze|
|Dec||7.3||a gentle breeze||14||a moderate breeze|
Show Relative Humidity by Month
|Month||Avg. Relative Humidity|
Is it Safe to Travel to the United States?
As of 6/22/2017 there are no travel advisories or warnings for the United States; exercise normal security precautions. Check this page for any recent changes or regions to avoid: Travel Advice and Advisories.
The Busiest and Least Crowded Months
The busiest month for tourism in the United States is July, followed by June and May. Prices for hotels and flights will be most expensive during these months, though you can save if you purchase well in advance. Tourists are unlikely to visit the United States in November. Those willing to visit at these times will likely find it the least expensive month.
Estimated Tourism by Month
Most Popular Months to Visit
Overall the United States Travel Experience by Season
Spring (March through May)
Humidity and temperatures combine to make this season feel moderately cold. Highs range from 77.5°F (25.3°C) and 48.4°F (9.1°C) with warmer temperatures in the later months. Rain is somewhat common with 5 to 6 days of precipitation per month. Spring is moderately busy for tourism, which makes it a good time for those looking for deals.
Summer (June through August)
The middle-year months have very comfortable weather with high temperatures that are comfortable. These months see moderate precipitation with 5 to 6 days of precipitation per month. June – August is the busiest season for tourism in the United States, so lodging and other accommodations may cost as much as usual.
Fall (September through November)
Fall daily highs range from 80.6°F (27°C) and 51.4°F (10.8°C), which will feel comfortable given the humidity and wind. It rains or snows a fair amount: approximately 5 days per month. Tourism is the slowest during these months due to the weather, so hotels may be normally priced.
Winter (December through February)
Weather is too cold this time of year in the United States to be enjoyable for warm weather travelers. The average high during this season is between 48.6°F (9.2°C) and 43.9°F (6.6°C). On average, it rains or snows a noticeable amount: 5 to 6 times per month. These times of year are moderately busy with tourists.