Question: What Is The Average Annual Rainfall In The United States?

What is the average rainfall in the United States?

The contiguous U.S.

average annual precipitation was 32.21 inches, which is 2.27 inches above the long-term average.

This made 2017 the 20th wettest year on record for the nation, and the fifth consecutive year with above-average precipitation..

How do you calculate average annual rainfall?

Average annual rainfall for a place is generally calculated by averaging the last 30-35 years of annual rainfall. Annual rainfall is the sum of daily rainfall, that can be calculated from raingauge records.

What US city has the most rainy days?

Rochester, New York, had an average of about 167 days per year with precipitation. The sunniest city in the U.S. was Phoenix, Arizona, with an average of 85 percent of sunshine per day….Average number of rainy days per yearRochester, New York167Buffalo, New York167Portland, Oregon164Cleveland, Ohio1556 more rows•Dec 31, 2011

How is total rainfall calculated?

Here’s what you’ll need to do:Measure the diameter of the bucket at the level of the rain. … Measure the diameter of the bucket at the bottom in the same way.Calculate the average of the two diameters.Divide by two to find the average radius.Find the average volume of rain = Depth x radius x radius x 3.14.More items…

What is rainy season called in USA?

The North American Monsoon (NAM) occurs from late June or early July into September, originating over Mexico and spreading into the southwest United States by mid-July. This allows the wet season to start in the Southwest during the summer rather than early fall as seen across the remainder of the West.

What is a annual rainfall?

Annual rainfall or precipitation is the sum of daily rainfall in a year.

What is mean monthly rainfall?

Mean rainfall (mm) The arithmetically averaged total amount of precipitation recorded during a calendar month or year.

What is the rainiest state in the United States?

HawaiiHawaii overall is the rainiest state in the US, with a state-wide average of 63.7 inches (1618 millimetres) of rain a year. But few places in Hawaii fit the state’s average.

Where does it rain the least in US?

NevadaNevada takes the lead as the least rainy state in the US, with only 9.5 inches (241 mm) of rain each year. The mountain states, including Wyoming and Montana, dominate the list of America’s driest states year round.

Where is the rainiest place on earth?

The current record holder, as recognised by the Guinness Book of World Records, is the cluster of hamlets known as Mawsynram in India. Moisture swept from the Bay of Bengal, condenses over this 1,491m plateau, in the Khasi Hills that overlook the plains of Bangladesh.

What is the hottest state?

FloridaFlorida ranks overall as the warmest state year round. The other state in the top four is Hawaii. The group of tropical islands ranks second to Florida as the country’s hottest state. Hawaii rises to the top of the list in winter, with average monthly temperatures well above those of any other state.

What US city gets the most rainfall per year?

MobileMobile is the rainiest city in the United States. Mobile receives an average annual rainfall of 67 inches and has about 59 rainy days per year. Located on the Gulf of Mexico, Mobile’s winters tend to be mild and rainy, and the area is subjected to tropical storms and hurricanes during hurricane season.

Who gets more rain Portland or Seattle?

Seattle’s Rainy Stats Portland, Oregon, is one of the few cities that sees more days with measurable rainfall, about 155 days, but it actually receives slightly less rain than Seattle: 36.20 inches. … This leaves less moisture in the atmosphere east of the mountains, where Seattle is located.

What are the wettest cities in the US?

The Five Wettest Cities in the USMobile, Alabama. Mobile is the wettest city in the US. … Pensacola, Florida. Pensacola is the second wettest city in the US. … New Orleans, Louisiana. … West Palm Beach, Florida. … Lafayette, Louisiana.

What is the cloudiest city in the US?

Pittsburgh, PennsylvaniaPittsburgh, Pennsylvania, tops the list of the cloudiest cities in the US. The city sees the sun for approximately 2,021 hours annually. Generally, it is cloudy in Pittsburgh for 77% of the year.