Laserfiche WebLink
2024 Hennepin County All -Jurisdiction Hazard Mitigation Plan <br />Volume 2 - Hazard Inventory <br />TABLE 4.3.1A Annual, spring, summer, fall, and winter temperature and precipitation averaged over <br />Hennepin County showing the 1991-2020 average values, the total change from 1895-2023, the <br />maximum values and the minimum values. Bold indicates occurrence since the year 2000. Data from <br />Minnesota DNR Climate Trends Tool (https://arcgis.dnr.state.mn.us/ewr/climatetrends/) <br />Average Temperature (° F) <br />Total <br />Prcc�atiorta>I1h <br />; ,. <br />Season <br />Change, g <br />Max <br />Min <br />CFtrige, <br />Mfx Mtn <br />Average, <br />1895- <br />AM e a % <br />1991-2020 <br />2023 <br />(year) <br />(Year) <br />45.15 <br />+3.1 <br />48.98 <br />38.83 <br />31.88 <br />+3.0 <br />41.91 12.53 <br />Annual <br />(2012) <br />(1917) <br />(1991) (1910) <br />Spring <br />45.11 <br />+2.6 <br />52.65 <br />37.38 <br />8.66 <br />+1.7 <br />14.54 2.37 <br />(Mar- <br />(2012) <br />(1907) <br />(1938) (1910) <br />May) <br />Summer <br />70.02 <br />+1.7 <br />74.57 <br />64.43 <br />13.11 <br />+1.7 <br />22.76 4.75 <br />(Jun- <br />(1988) <br />(1915) <br />(2002) (1936) <br />Aug) <br />Fall <br />47.72 <br />+2.6 <br />52.74 <br />38.62 <br />7.55 <br />-0.1 <br />15.54 1.42 <br />(Sep- <br />(1963) <br />(1896) <br />(1900) (1952) <br />Nov) <br />17.68 <br />+5.0 <br />25.39 <br />4.42 <br />2.57 <br />-0.3 <br />5.65 0.59 <br />Winter <br />(Dec- <br />(2001- <br />(1935- <br />(2022- (1958- <br />Feb) <br />02) <br />36) <br />23) 59) <br />As shown in GRAPHIC 4.3.1A, confidence about the extent to which climate change has influenced <br />changes in the frequency or magnitude of given weather hazards in Minnesota varies considerably. Some <br />hazards appear strongly linked to climatic change while other hazards have yet to show any influence at <br />all. In general, the most notable associations include cold weather extremes becoming less severe or less <br />frequent, and extremes of precipitation becoming more severe or more frequent. Humid heat waves have <br />a moderately -strong and increasing association with climate change, because of increases in humidity. <br />Other common hazards, including tornadoes, hail, and strong thunderstorm winds; drought; and summer <br />high temperature extremes, show little or no long-term change in frequency or magnitude yet. <br />GRAPHIC 4.3.1A Confidence that climate change has already impacted common Hennepin County <br />weather/climate hazards through 2023. Provided upon request by Minnesota State Climatology Office. <br />46 <br />