Question: When does it get cold in the state where Turtle River is located?

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: Turtle River (North Dakota): The Turtle River is a tributary of the Red River of the North in northeastern North Dakota in the United States. It flows for almost its entire length in Grand Forks County. Via the Red River, Lake Winnipeg and the Nelson River, the Turtle River is part of the watershed of Hudson Bay.
Document 3: 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 4: Nelson River: The Nelson River is a river of north-central North America, in the Canadian province of Manitoba. The river drains Lake Winnipeg and runs before it ends in Hudson Bay. Its full length (including the Saskatchewan River and Bow River) is , it has mean discharge of , and has a drainage basin of , of which is in the United States.
Document 5: Tongue River (North Dakota): The Tongue River is a tributary of the Pembina River in northeastern North Dakota in the United States. It drains an area of the prairie country near the Canada–US border in the extreme northeast corner of the state in the watershed of the Red River.
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: Hudson River: The Hudson River is a 315 - mile (507 km) river that flows from north to south primarily through eastern New York in the United States. The river originates in the Adirondack Mountains of Upstate New York, flows through the Hudson Valley, and eventually drains into the Atlantic Ocean, between New York City and Jersey City. The river serves as a political boundary between the states of New Jersey and New York, and further north between New York counties. The lower half of the river is a tidal estuary occupying the Hudson Fjord, an inlet which formed during the most recent period of North American glaciation, estimated at 26,000 to 13,300 years ago. Tidal waters influence the Hudson's flow from as far north as Troy.
Document 8: South Fork Grand River (South Dakota): It rises in the Badlands of northwestern South Dakota, south of the Cave Hills in western Harding County, and flows east past Buffalo, then past several units of the Grand River National Grassland in northern Perkins County. It joins the North Fork in the Shadehill Reservoir near to form the Grand, which is a tributary of the Missouri.
Document 9: 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.
Document 10: 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 11: 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 12: 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 13: Pembina River (Manitoba – North Dakota): The Pembina River is a tributary of the Red River of the North, approximately long, in southern Manitoba in Canada and northeastern North Dakota in the United States. It drains an area (about 8500 square kilometers) of the prairie country along the Canada–US border, threading the Manitoba-North Dakota border eastward to the Red River. Via the Red River, Lake Winnipeg and the Nelson River, it is part of the watershed of Hudson Bay.
Document 14: Knife River: The Knife River is a tributary of the Missouri River, approximately 120 mi (193 km) long, in North Dakota in the United States.
Document 15: Red River of the South: The Red River is the second - largest river basin in the southern Great Plains. It rises in two branches in the Texas Panhandle and flows east, where it acts as the border between the states of Texas and Oklahoma. It forms a short border between Texas and Arkansas before entering Arkansas, turning south near Fulton, Arkansas, and flowing into Louisiana, where it flows into the Atchafalaya River. The total length of the river is 1,360 miles (2,190 km), with a mean flow of over 57,000 cubic feet per second (1,600 m / s) at the mouth.
ground_truth: winter months
sub_queries: Turtle River >> located in the administrative territorial entity Answer: North Dakota
when does it get cold in North Dakota Answer: winter months