Question: When does it get cold in the state that has a buffalo on its license plate?

full_context: Document 1: Climate of North Dakota: Being 1,000 miles (1,609 km) from any large body of water (with the exception of Lake Superior), temperatures and precipitation in North Dakota can vary widely. North Dakota is far enough north to experience − 60 ° F (− 51 ° C) temperatures and blizzards during the winter months, but far enough south to experience 121 ° F (49 ° C) temperatures and tornado outbreaks in the summer. The 181 ° F degree (100 ° C) variation between North Dakota's highest and lowest temperature is the 3rd largest variation of any U.S. State, and the largest of any non-mountainous state.
Document 2: Climate of North Dakota: Spring is a time of major transition in North Dakota. Early spring commonly sees snowstorms, but by late spring as temperatures begin to moderate the state can experience tornado outbreaks, a risk which diminishes but does not cease through the summer and into the fall as North Dakota lies at the northern edge of Tornado Alley. Springtime flooding is a relatively common event in the Red River Valley, due to the river flowing north into Canada. The spring melt and the eventual runoff typically begins earlier in the southern part of the valley than in the northern part. The most destructive flooding in eastern North Dakota occurred in 1997, which caused extensive damage to Grand Forks.
Document 3: Driver's licenses in the United States: The minimum age to obtain a restricted driver's license in the United States varies from 14 years, three months in South Dakota to as high as 17 in New Jersey. In most states, with the exception of South Dakota, a graduated licensing law applies to newly licensed teenage drivers, going by names such as Provisional Driver, Junior Operator, Probationary Driver, or Intermediate License. These licenses restrict certain driving privileges, such as whether the new driver may carry passengers and if so how many, as well as setting a curfew for young drivers to be off the roads. For example, Utah drivers who are under 18 may not drive other people outside the family in their first six months with a license. Unlike in some states of Australia and some provinces of Canada, however, graduated licensing laws do not require lowered speed limits, displaying of L and P plates, restrictions on towing a trailer or boat, or prohibitions on highway driving or operating high performance cars.
Document 4: Oklahoma: Because of Oklahoma's position between zones of differing prevailing temperature and winds, weather patterns within the state can vary widely over relatively short distances and can change drastically in a short time. As an example, on November 11, 1911, the temperature at Oklahoma City reached 83 °F (28 °C) in the afternoon (the record high for that date), then an Arctic cold front of unprecedented intensity slammed across the state, causing the temperature to crash 66 degrees, down to 17 °F (−8 °C) at midnight (the record low for that date); thus, both the record high and record low for November 11 were set on the same date. This type of phenomenon is also responsible for many of the tornadoes in the area, such as the 1912 Oklahoma tornado outbreak, when a warm front traveled along a stalled cold front, resulting in an average of about one tornado per hour over the course of a day.
Document 5: Flag of Nebraska: The flag of the state of Nebraska is a blue rectangular cloth charged with the Nebraskan state seal. The current design was commissioned in 1925, when a bill was passed that the flag would have the Nebraska state seal in gold and silver on a field of national blue.
Document 6: Minneapolis: The city experiences a full range of precipitation and related weather events, including snow, sleet, ice, rain, thunderstorms, and fog. The highest recorded temperature was 108 °F (42 °C) in July 1936 while the lowest was −41 °F (−41 °C) in January 1888. The snowiest winter on record was 1983–84, when 98.6 inches (250 cm) of snow fell, and the least snowy winter was 1890-91, when only 11.1 inches (28 cm) fell.
Document 7: Vehicle registration plates of India: All motorised road vehicles in India are tagged with a registration or license number. The Vehicle registration plate (commonly known as number plate) number is issued by the district-level Regional Transport Office (RTO) of respective states — the main authority on road matters. The number plates are placed in the front and back of the vehicle. By law, all plates are required to be in modern Hindu-Arabic numerals with Latin letters. Other guidelines include having the plate lit up at night and the restriction of the fonts that could be used. In some states such as Sikkim, cars bearing outside plates are barred from entering restricted areas. The international vehicle registration code for India is IND.
Document 8: Oklahoma: All of the state frequently experiences temperatures above 100 °F (38 °C) or below 0 °F (−18 °C), though below-zero temperatures are rare in south-central and southeastern Oklahoma. Snowfall ranges from an average of less than 4 inches (10 cm) in the south to just over 20 inches (51 cm) on the border of Colorado in the panhandle. The state is home to the Storm Prediction Center, the National Severe Storms Laboratory, and the Warning Decision Training Branch, all part of the National Weather Service and located in Norman. Oklahoma's highest recorded temperature of 120 °F (49 °C) was recorded at Tipton on June 27, 1994 and the lowest recorded temperature of −31 °F (−35 °C) was recorded at Nowata on February 10, 2011.
Document 9: Vehicle registration plates of Monaco: Vehicle registration plates of Monaco are unusually small (a few centimeters smaller than an American license plate), and are composed of four numbers and/or letters. The plates are colored blue font on a white background and have the coat of arms of Monaco on the left side with the year number (on the rear plate only) to attest that tax has been paid. All plates starting with "000" belong to the family of Albert II, Prince of Monaco.
Document 10: North Dakota: North Dakota is in the U.S. region known as the Great Plains. The state shares the Red River of the North with Minnesota to the east. South Dakota is to the south, Montana is to the west, and the Canadian provinces of Saskatchewan and Manitoba are to the north. North Dakota is situated near the middle of North America with a stone marker in Rugby, North Dakota marking the ``Geographic Center of the North American Continent ''. With an area of 70,762 square miles (183,273 km), North Dakota is the 19th largest state.
Document 11: Climate of Minnesota: Autumn weather in Minnesota is marked by the rapid decrease of severe thunderstorms, dramatic cooling, and eventually the possibility of blizzards. With summer - time heat still prevalent in the southern U.S. and colder air quickly taking hold in Canada, Minnesota can be affected by wide temperature swings in short periods of time. Because of this, the jet stream, which tends to weaken during the summer months, begins to re-strengthen. This leads to quicker changes in weather patterns and increasingly strong storm systems. As autumn moves on, these storm systems bring with them progressively colder air, eventually changing the rain over snow, generally starting in October in the northern part of the state and November in the south. From September to December the average temperature in the state falls by approximately 43 ° F (23 ° C), the largest such temperature swing within any Minnesota season.
Document 12: Vehicle registration plates of Moldova: Pre-2015 plates have seven characters: two letters for the region (except for Chișinău, which only has the letters C and K), two letters for the series and three digits, all written using the DIN 1451 Mittelschrift font. The left side of the plate carries the coat of arms of Moldova with the country index MD (before 1993 the country index on car plates was MLD) and since November 1, 2011, it has a vertical blue background, similar to the European Union plates. Additionally, the owners could request to have only one or two digits instead of three.
Document 13: United States license plate designs and serial formats: North Dakota 2015 Standard issue Legendary black on light blue gradient fade to sunrise with prairie scene and buffalo graphic Screened serial; Reflective sheeting 123 ABC
Document 14: Vehicle registration plates of San Marino: Sammarinese authorities license private vehicles with distinctive licence plates which are white with blue figures, usually a letter followed by up to four numbers. To the left of these figures is displayed the national coat of arms of San Marino. Many vehicles also carry the international vehicle identification code "RSM" in black on a white oval sticker. Since 2004 custom licence plates have also become available.
Document 15: Climate of North Dakota: Autumn weather in North Dakota is largely the reverse of spring weather. The jet stream, which tends to weaken in summer, begins to re-strengthen, leading to a quicker changing of weather patterns and an increased variability of temperatures. By late October and November these storm systems become strong enough to form major winter storms. Fall and spring are the windiest times of the year in North Dakota.
ground_truth: winter months
sub_queries: what state has a buffalo on its license plate Answer: North Dakota
when does it get cold in North Dakota Answer: winter months