Missouri Revised Statutes

Mo. Rev. Stat. § 160.041 (2026)

School day, school month, school year, defined

✓ current as of May 2026

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160.041. School day, school month, school year, defined — reduction of required number of hours and days, when. — 1. A "school month" consists of four weeks of five days each for schools with a five-day school week or four weeks of four days each for schools with a four-day school week. The term "school day" shall mean any day in which, for any amount of time, pupils are under the guidance and direction of teachers in the teaching process. The "school year" commences on the first day of July and ends on the thirtieth day of June following.

2. Notwithstanding the provisions of subsection 1 of this section, the commissioner of education is authorized to reduce the required number of hours or days in which the pupils are under the guidance and direction of teachers in the teaching process if:

(1) There is damage to or destruction of a public school facility which requires the dual utilization of another school facility; or

(2) Flooding or other inclement weather as defined in subsection 1 of section 171.033 prevents students from attending the public school facility.

Such reduction shall not extend beyond two calendar years in duration.

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(L. 1963 p. 200 § 1-4, A.L. 1977 H.B. 130, A.L. 1982 S.B. 832, A.L. 1983 S.B. 39, A.L. 1984 H.B. 1456 & 1197, A.L. 1993 S.B. 380, A.L. 1994 S.B. 442, A.L. 2007 S.B. 64, A.L. 2009 S.B. 291, A.L. 2018 H.B. 1606 merged with S.B. 743, A.L. 2024 S.B. 727)

(Source: RSMo 1959 § 163.020)

Effective 7-01-26

CROSS REFERENCE:

Make-up hours and days required due to cancellation for inclement weather, 171.033

Notes of Decisions

Cited in 5 cases, 1966–1984 · leading case: St. Louis Developmental Disabilities Treatment Ctr. Parents Ass'n v. Mallory, 591 F. Supp. 1416 (W.D. Mo. 1984).

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St. Louis Developmental Disabilities Treatment Ctr. Parents Ass'n v. Mallory, 591 F. Supp. 1416 (W.D. Mo. 1984). · cites it 3× “Mo.Rev. Stat. § 160.041. The state schools, however, do not fall within § 160.”

Valter v. Orchard Farm Sch. Dist., 541 S.W.2d 550 (Mo. 1976). “After considering various cases, including some from other states, and certain statutes including § 160.041, 4 the court concluded that “year” as used in the Teacher Tenure Act had reference to a school year commencing July 1 and ending the following June 30 and that a contract…”

Special Dist. for the Educ. & Training of Handicapped Child. of St. Louis Cnty. v. Wheeler, 408 S.W.2d 60 (Mo. 1966). “; § 160.041, Laws 1963, p. 209, § 1-4, effective July 1, 1965.”

Hirbe v. Hazelwood Sch. Dist., 532 S.W.2d 848 (Mo. Ct. App. 1975). “In addition, and we consider this to be of particular significance, by § 160.041, enacted in 1963 as a part of a general revision of the school laws of this State, it is provided that “The school year commences on the first day of July and ends on the thirtieth day of June…”

Union Elec. Co. v. Toulouse, 572 S.W.2d 167 (Mo. 1978). “The schools operate on a fiscal year, commencing July 1, § 160.041, while taxes on real and personal property are assessed and levied on a calendar year basis, so there is an overlap between the two.”

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