HydroClim Minnesota for Early July 2014

A monthly electronic newsletter summarizing Minnesota's climate conditions and the resulting impact on water resources. Distributed on the first Thursday of the month.

State Climatology Office - DNR Division of Ecological and Water Resources, St. Paul
distributed: July 3, 2014


What happened in June 2014:

  • June precipitation amounts across Minnesota were extremely heavy. The final totals are yet to be compiled. However, it is certain that the state-averaged monthly rainfall total will top eight inches. This will make June 2014 Minnesota's wettest June, and wettest month, of the modern record. Numerous locations set single-station June monthly rainfall records. A great many communities reported more than 10 inches of rain for the month, well over double the historical June average.
    [see: Record-Setting June Rainfall  |  June Record Rainfalls  |  June 2014 Precipitation Map  |  June 2014 Precipitation Departure Map  | June 2014 Climate Summary Table]
  • The impacts of the heavy June rainfall were apparent: flooded farm fields and delayed field work, flooded homes, mudslides and overtopped roads leading to transportation disruptions, and negative consequences for outdoor activities including construction and outdoor recreation. Governor Dayton declared a State of Emergency in 35 Minnesota counties on June 19. As of this posting, Minnesota Homeland Security and Emergency Management and FEMA are conducting damage assessments.
    [see: State Emergency Operations Center]
  • Numerous heavy rain events occurred during the month of June. In addition to record-breaking monthly precipitation totals, a number of locations recorded single-day rainfall records on various dates throughout the first three weeks of the month. Many observers reported measurable rainfall on over half of the days of June.
    [see: Heavy Rain: June 19  |  Heavy Rain: June 17-18  |  Heavy Rain: June 14-15  |  Heavy Rain: June 11-12  |  Heavy Rains of May 31-June 2]
  • Average monthly temperatures for June in Minnesota were very close to historical averages at most locations. The ever-present cloudiness during the month led to elevated overnight temperatures, but lower daytime maximum temperatures. Extremes for June ranged from a high of 90 degrees F at some west central and southwest Minnesota stations on the 20th, to a low of 32 degrees F at Embarrass (St. Louis County) on the 13th.
    [see: June 2014 Climate Summary Table]

Where we stand now:

Future prospects:

  • The July precipitation outlook offers equal chances of below-normal, near-normal, or above-normal conditions throughout Minnesota. July precipitation normals range from just over three inches in far northwest Minnesota to over four inches in eastern sections of the state.
    [see: Climate Prediction Center 30-day Outlook  |  July Precipitation Normal Map]
  • The July temperature outlook tilts towards below-normal conditions across most of Minnesota. Normal July high temperatures are in the low to mid-80s. Normal July lows are around 60 degrees. July is historically the warmest month of the year in Minnesota.
    [see: Climate Prediction Center 30-day Outlook  | July Temperature Normal Map]
  • The 90-day precipitation outlook for July through September offers equal chances of below-normal, near-normal, or above-normal conditions in most Minnesota counties, with a tilt towards above-normal precipitation in northwest Minnesota. The July through September temperature projection leans towards below-normal conditions statewide.
    [see: Climate Prediction Center 90-day Outlook]
  • The National Weather Service produces long-range probabilistic river stage and discharge outlooks for the Red River, Minnesota River, and Mississippi River basins. These products address both high flow and low flow probabilities.
    [see: National Weather Service - North Central River Forecast Center]

From the author:

  • none

Upcoming dates of note:

  • July 17: National Weather Service releases 30/90 day temperature and precipitation outlooks

Web sites featured in this edition:

 

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Greg Spoden, DNR Climatologist