January Thaw
3 definitions

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A period of relatively mild weather around January 20 to 23 that occurs primarily in New England. an example of a singularity in the climatic record.

FK Reading Ease
37.5

FK Grade Level
High School
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  • This definition has not yet been approved by a moderator.

    In the United States, a period of mild weather popularly supposed to recur each year, in later January; most pronounced in the Northeast and, to a lesser extent, the Midwest.

    The daily temperature averages at Boston, computed for the years 1873 to 1952, show a well- marked peak on 20–23 January; the same peak occurs in the daily temperatures of Washington, D.C., and New York City. Statistical tests show a high probability that it is a real singularity. The January thaw is associated with the frequent occurrence on the above-mentioned dates of southerly winds on the back side of an anticyclone off the southeastern United States.

    FK Reading Ease
    47.6

    FK Grade Level
    High School
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  • A period of mild weather popularly supposed to recur each year in late January.

    FK Reading Ease
    35.5

    FK Grade Level
    High School
  • Flag