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  2. dnr.state.mn.us

    Below is a history of Frost Depth Information from a volunteer site in Maplewood, MN just north of St. Paul. 25 years of frost under sod at Maplewood MN 55109 Year Frost In Frost Out Deepest frost ----- 2000-2001 Nov 22 April 4 29.3 inches 2001-2002 Dec 21 April 12 17.0 inches 2002-2003 Nov 13 April 11 32.3 inches 2003-2004 Dec 2 March 28 29.3 ...
  3. dnr.state.mn.us

    These dates are sometimes referred to as "last frost" and "first frost". Accurate long-range forecasts of freeze dates remain beyond the reach of science. Therefore, climatologists rely on past temperature observations to calculate the historical probability of freezing temperatures occurring after (spring) or before (fall) certain dates.
  4. dnr.state.mn.us

    U.S. Drought Monitor Map for Minnesota (National Drought Mitigation Center) Snow Depth. Weekly Snow Depth and Snow Depth Rank Maps; ... Daily Minimum Temperature Maps for Frost/Freeze Monitoring (Midwestern Regional Climate Center) This Year's Date of First Frost/Freeze (Midwestern Regional Climate Center) Lake Ice. Lake Ice-Out Date Reports;
  5. dnr.state.mn.us

    General Climate Description for Minnesota (2021) (National Climatic Data Center) ... (Western Regional Climate Center) Map of 1991-2020 Precipitation Normal and Difference from 1981-2010 ... Comparative Climatic Data for Locations Around the United States (National Centers for Environmental Information (NCEI)) Midwest U.S. Climatology ...
  6. dnr.state.mn.us

    Frost Depth in Minnesota for the week of January 22, 2018 Courtesy: Minnesota State Climatology Office ... MN just north of St. Paul. Frost under sod at Maplewood MN 55109 Year Frost In Frost Out Deepest frost ----- 2000-2001 Nov 22 April 4 29.3 inches 2001-2002 Dec 21 April 12 17.0 inches 2002-2003 Nov 13 April 11 32.3 inches 2003-2004 Dec 2 ...
  7. dnr.state.mn.us

    The office is part of the Minnesota Department of Natural Resources (within the division of Ecological and Water Resources) and is housed at the University of Minnesota's Department of Soil, Water, and Climate. Legacy Climatology Office Page; The following links direct users to some of the office's most commonly used resources. Twin Cities ...
  8. dnr.state.mn.us

    For decades, the Minnesota State Climatology office has maintained a running account of significant Minnesota weather events and climatological feats to add a narrative component to Minnesota's climate record. ... Frost Depth: Winter 24-25; Twin Cities Snow and Cold Index; February 8 Snowfall; February 1-2 Snow in Northeast Minnesota; January 2025.
  9. dnr.state.mn.us

    38 F north 45 F south. Spring 36 F north 44 F south. Summer 63 F northeast 70 F south. Fall 41 F north 47 F south. Winter 8 F north 18 F south. Temperature and precipitation records - Minnesota Climate ExtremesHottest: 115 F, Beardsley (July 29, 1917)* Coldest: -60 F near Tower (February 2, 1996) Most rain in 24 hours: 15.10 inches, Hokah ...
  10. dnr.state.mn.us

    Spring Frost-Free Dates; Plant Hardiness Zone Map (United States Department of Agriculture) Probability of Occurrence in the Spring and Fall of Selected Low Temperatures (Climate of Minnesota Series - Part I, 1963) The Agricultural and Minimum-Temperature-Free Seasons (Climate of Minnesota Series - Part II, 1963) Corn Growing Degree Day Normals
  11. dnr.state.mn.us

    Soil frost depths under sod are beginning to deepen with the colder temperatures. On January 9, frost depths were about a foot deep in the Twin Cities, St. Cloud and Rochester, about 5-10 inches in southwest Minnesota and up to two feet deep across the north. Historically, the deepest frost occurs in late February to early March.
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