As weather systems move in and out of the area, average daily temperatures often change more than +25 °C (77 °F) in the matter of days.

Overnight frosts occur until late May, restricting agriculture to cold-resistant plants such as rye and winter wheat.

[citation needed] Ulyanovsk Oblast is located in the zones of wooded plain and broad-leaved scaffolding.

In the northwest — large massifs of oak forest with the participation of linden, maple; in the Transvolga region — meadow steppes, separate pine borons.

The area is inhabited by moose, marten, squirrel, hare (white and other) as well as numerous planktonic and marshy- coastal birds.

These protected areas are found on the territory of the region: the national park Sengiley Mountains, the guarding zone of the state preserved “Volga wooded plain”, the monuments of nature Undory mineral source, relict forests etc.

The presence of human groups in the Ulyanovsk Volga region in the Paleolithic show separate parking[clarification needed] and location of stone tools and bones found in the estuary.

In the late 14th and early 15th century, the devastating Central Asian ruler Tamerlane made desolation of Volga Ulyanovsk.

After the pacification of the territory of the future of his governorship Simbirsk gradually settled by Russians, who mingled with the local Tatars.

Twenty-two years after its founding, the city of Simbirsk had to withstand a siege of the Cossacks, led by Ataman Stepan Razin.

In July 1918 Simbirsk was captured by troops of the Komuch army led by White Russian tsarist General Vladimir Kappel.

[14] The Province, together with Penza, Samara and Orenburg became part of the newly formed Middle Volga region.

Since the beginning of the Great Patriotic War in Ulyanovsk, being the rear, the evacuated enterprises, institutions and people from the western regions of the country, from Moscow and Leningrad.

In the 1950 and 1960s, new enterprises were created in the region (factory of heavy and unique machines, mechanical plant, Dimitrovgrad Research Institute of Atomic Reactors, etc.

In 1970, the then General Secretary of the Communist Party of the Soviet Union Leonid Brezhnev, inaugurated memorial museum of Lenin.

On 30 October 1997, Ulyanovsk, alongside Astrakhan, Kirov, Murmansk, and Yaroslavl signed a power-sharing agreement with the government of Russia, granting it autonomy.

Since 1991, CPSU lost all the power, and the head of the Oblast administration, and eventually the governor was appointed/elected alongside elected regional parliament.

Chairmen of the Legislative Assembly: Sergey Ryabukhin (1/1996[17] - 6/2001), Boris Zotov (7/2001 - 2013), Anatoly Bakayev (14/09/2013 - 2018),[18] Valery Malyshev (19/09/2018–present).

Rural part of Ulyanovsk Oblast is agricultural and is focused primarily on animal husbandry, to the lesser extent on crop farming.

The UAZ automobile manufacturing plant, now a subsidiary of Sollers JSC; Aviastar-SP Aircraft Company, now a part of United Aircraft Corporation; Scientific and Production Association "Mars" (manufactures industrial control systems for the Russian Navy), now part of state-owned conglomerate Agat; Ulyanovsk Cartridge Works (manufactures ammunition for firearms); Ulyanovsk Motor Plant (russian.Ульяновский моторный завод, UMZ) and Ulyanovsk Mechanical Plant (russian.Ульяновский механический завод, UMZ, subsidiary of JSC Almaz-Antey) are based in the city along with a variety of light industry and food-processing enterprises.

Other developed sectors include the flour-milling, meat, butter-making, starch and molasses, distilling, building material, and woodworking industries.

There are many manufacturing facilities of foreign corporations such as Legrand (company), Mars, Incorporated,[32] Takata-Petri,[33] Anadolu Efes S.K.,[34] ALFA (Mexico) and others.