paragraph_text: Boone is an unincorporated community in Caddo County, Oklahoma, United States. Boone is located along Oklahoma State Highway 19 west of Apache.

paragraph_text: During a 10-day run in Oklahoma City, the State Fair of Oklahoma attracts roughly one million people along with the annual Festival of the Arts. Large national pow-wows, various Latin and Asian heritage festivals, and cultural festivals such as the Juneteenth celebrations are held in Oklahoma City each year. The Tulsa State Fair attracts over one million people during its 10-day run, and the city's Mayfest festival entertained more than 375,000 people in four days during 2007. In 2006, Tulsa's Oktoberfest was named one of the top 10 in the world by USA Today and one of the top German food festivals in the nation by Bon Appetit magazine.

paragraph_text: The 2014 United States Senate election in Oklahoma took place on November 4, 2014 to elect a member of the United States Senate to represent the State of Oklahoma, concurrently with the special election to Oklahoma's other Senate seat, as well as other elections to the United States Senate in other states and elections to the United States House of Representatives and various state and local elections.

paragraph_text: Bethany is a city in Oklahoma County, Oklahoma, United States, and a part of the Oklahoma City metropolitan area. The community was founded in 1909 by followers of the Church of the Nazarene from Oklahoma City.

paragraph_text: The third-largest university in the state, the University of Central Oklahoma, is located just north of the city in the suburb of Edmond. Oklahoma Christian University, one of the state's private liberal arts institutions, is located just south of the Edmond border, inside the Oklahoma City limits.

paragraph_text: State law codifies Oklahoma's state emblems and honorary positions; the Oklahoma Senate or House of Representatives may adopt resolutions designating others for special events and to benefit organizations. Currently the State Senate is waiting to vote on a change to the state's motto. The House passed HCR 1024, which will change the state motto from "Labor Omnia Vincit" to "Oklahoma-In God We Trust!" The author of the resolution stated that a constituent researched the Oklahoma Constitution and found no "official" vote regarding "Labor Omnia Vincit", therefore opening the door for an entirely new motto.

paragraph_text: The Martin County Fair is one of the largest agricultural fairs in the United States, occurring annually in February in Stuart, Florida. The Martin County Fair is held at the Martin County Fairgrounds across from Witham Airfield. The fair includes rides and food, and features various local talents.

paragraph_text: Oklahoma City is the capital and largest city of the state of Oklahoma. The county seat of Oklahoma County, the city ranks 27th among United States cities in population. The population grew following the 2010 Census, with the population estimated to have increased to 620,602 as of July 2014. As of 2014, the Oklahoma City metropolitan area had a population of 1,322,429, and the Oklahoma City-Shawnee Combined Statistical Area had a population of 1,459,758 (Chamber of Commerce) residents, making it Oklahoma's largest metropolitan area. Oklahoma City's city limits extend into Canadian, Cleveland, and Pottawatomie counties, though much of those areas outside of the core Oklahoma County area are suburban or rural (watershed). The city ranks as the eighth-largest city in the United States by land area (including consolidated city-counties; it is the largest city in the United States by land area whose government is not consolidated with that of a county or borough).

paragraph_text: Fair Hill is an unincorporated community in Cecil County, Maryland, United States. Fair Hill is located at the intersection of Maryland Route 213 and Maryland Route 273 north of Elkton.

paragraph_text: The Oklahoma Pardon and Parole Board is the parole board of the state of Oklahoma. The Board was created by an amendment to the Oklahoma Constitution in 1944. The Board has the authority to empower the Governor of Oklahoma to grant pardons, paroles, and commutations to people convicted of offenses against the state of Oklahoma.

paragraph_text: During the 1930s, parts of the state began suffering the consequences of poor farming practices, extended drought and high winds. Known as the Dust Bowl, areas of Kansas, Texas, New Mexico and northwestern Oklahoma were hampered by long periods of little rainfall and abnormally high temperatures, sending thousands of farmers into poverty and forcing them to relocate to more fertile areas of the western United States. Over a twenty-year period ending in 1950, the state saw its only historical decline in population, dropping 6.9 percent as impoverished families migrated out of the state after the Dust Bowl.

paragraph_text: Andrew Montgomery "Andy" Coats (born January 19, 1935) is an American politician. A Democrat, he served as mayor of Oklahoma City, Oklahoma from 1983 to 1987. He attended the University of Oklahoma and is an attorney. From 1996 to 2010, he was the Dean of the University of Oklahoma College of Law. He is also a former president of the American College of Trial Lawyers. From 1976 to 1980, he was Oklahoma County District Attorney. In 1980, he unsuccessfully ran in the United States Senate election in Oklahoma, 1980 to replace Henry Bellmon. He was inducted into the Oklahoma Hall of Fame in 2005. His son, Sanford Coats has served as United States Attorney for the Western District of Oklahoma since 2009.

paragraph_text: Forests cover 24 percent of Oklahoma and prairie grasslands composed of shortgrass, mixed-grass, and tallgrass prairie, harbor expansive ecosystems in the state's central and western portions, although cropland has largely replaced native grasses. Where rainfall is sparse in the western regions of the state, shortgrass prairie and shrublands are the most prominent ecosystems, though pinyon pines, red cedar (junipers), and ponderosa pines grow near rivers and creek beds in the far western reaches of the panhandle. Southwestern Oklahoma contains many rare, disjunct species including sugar maple, bigtooth maple, nolina and southern live oak.

paragraph_text: The State Fair of Texas is an annual state fair held in Dallas at historic Fair Park. The fair has taken place every year since 1886 except for varying periods during World War I and World War II. It usually begins the last Friday in September and ends 24 days later. While the State Fair of Texas considers quantifying its official attendance figures ``too much of a hassle '', it is still consistently recognized as one of the most highly attended and best state fairs in America as well as Dallas's signature event.

paragraph_text: The Oklahoma City Oil Field is one of the world's giant petroleum fields and is located in Oklahoma City, Oklahoma in the United States of America. The field was opened just south of the city limits on December 4, 1928, and first entered Oklahoma City limits on May 27, 1930.

paragraph_text: Coordinates: 40 ° 50 ′ 08 ''N 96 ° 41 ′ 14'' W ﻿ / ﻿ 40.8356 ° N 96.687176 ° W ﻿ / 40.8356; - 96.687176 The Nebraska State Fair is a state fair held annually in Grand Island. It is an approximately eleven - day event; since the early 1990s, the fair ends on Labor Day. Prior to 2010, the fair was held in Lincoln, Nebraska.

paragraph_text: The humid subtropical climate (Koppen Cfa) of central, southern and eastern Oklahoma is influenced heavily by southerly winds bringing moisture from the Gulf of Mexico. Traveling westward, the climate transitions progressively toward a semi-arid zone (Koppen BSk) in the high plains of the Panhandle and other western areas from about Lawton westward, less frequently touched by southern moisture. Precipitation and temperatures decline from east to west accordingly, with areas in the southeast averaging an annual temperature of 62 °F (17 °C) and an annual rainfall of generally over 40 inches (1,020 mm) and up to 56 inches (1,420 mm), while areas of the (higher-elevation) panhandle average 58 °F (14 °C), with an annual rainfall under 17 inches (430 mm).

paragraph_text: The Minnesota State Fair is the state fair of the U.S. state of Minnesota. Its slogan is ``The Great Minnesota Get - Together. ''It is the largest state fair in the United States by average daily attendance. It is also the second - largest state fair in the United States by total attendance, trailing only the State Fair of Texas, which generally runs twice as long as the Minnesota State Fair. The state fairgrounds, adjoining the Saint Paul campus of the University of Minnesota, are in Falcon Heights, Minnesota, midway between the state's capital city of St. Paul and its largest city, Minneapolis, near the Como Park and Saint Anthony Park neighborhoods of Saint Paul. Residents of the state and region come to the fair to be entertained, exhibit their best livestock, show off their abilities in a variety of fields including art and cooking, learn about new products and services, and eat many different types of food -- often on a stick. The fair runs for twelve days from late August into early September, ending on Labor Day. The Minnesota State Fair was named the best state fair in the United States in 2015 by readers of USA Today.

paragraph_text: Carpenter is an unincorporated community in Roger Mills and Custer counties in the state of Oklahoma, United States. The community is eight miles north of Elk City, Oklahoma.

paragraph_text: With 19.48 inches of rainfall, May 2015 was by far Oklahoma City's record-wettest month since record keeping began in 1890. Across Oklahoma and Texas generally, there was record flooding in the latter part of the month

Question: When was the most rainfall for the city where the State Fair of Oklahoma is held?
Answer: May 2015