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Climate Reports

Monthly U.S. Climate Reports


The following analyses document recent climate conditions, their unusualness, and their long-term trends for a broader swath of the climate system, drawn from NOAA data, data from NCEI partners, and regional analysis from NCEI-affiliated Regional Climate Centers. Because most U.S. data are available sooner than international data, these reports are often released about the seventh of the following month.

  • U.S. Analysis 
    A monthly overview of recent and current climate conditions across the United States. The report focuses on the latest complete month and draws from the other U.S. focused monthly reports (see below) and monitoring products. Analyses place climate conditions and significant events into historical perspective.

  • Synoptic Discussion
    The Synoptic Discussion provides a detailed discussion of the major atmospheric patterns that occurred during the month, and how these relate to the phenomena that cause weather such as the jet stream and the position of ridges and troughs. The discussion also relates these patterns to known drivers on climate variability time scales such as El Niño / La Niña and the Arctic Oscillation. The discussion is somewhat technical and assumes familiarity with meteorological terminology.

  • Tornadoes
    The Tornadoes report provides a large-scale overview of the occurrence of tornadoes across the country for a given month as well as a running analysis of the current tornado season. It draws heavily on data from and coordination with NOAA’s Storm Prediction Center. It is produced monthly during the most active tornado months (March through September) and may be produced during the less active months, if conditions warrant.

  • Drought
    The U.S. Drought report compiles information from a wide array of drought indicators. Because drought is a complex process that affects different people in different ways, there are many ways to characterize drought and many metrics used by decision makers as “triggers” for drought action. Because of this, the drought report tends to be the most detailed and lengthy of all the Monthly Climate Reports.
  • Wildfires
    This report provides large-scale information on the number and coverage of wildfires during the month and the fire-weather conditions that shaped outcomes. Selected significant wildfire events and episodes are briefly addressed when possible. This report is updated monthly.
  • U.S. Snow and Ice
    The U.S. Snow and Ice report broadly covers the state of snow cover and winter weather over the course of the cold season. Snow cover extent and snow depth measurements are compared to long-term averages and trends. Significant winter weather events are documented and placed into historical perspective. This report draws upon information from the Rutgers Snow Lab and other NOAA sources. It is updated October through April.
  • Tropical Storms
    This report puts the current Tropical Cyclone season into a climate perspective. Brief summaries of individual storms are provided. This report is not nearly as comprehensive or timely as those available from NOAA’s National Hurricane Center. It is updated monthly during tropical cyclone season (typically June through November, although storms sometimes occur outside these months).
  • Residential Energy Demand Temperature Index
    Residential energy consumption is known to be highly correlated with heating and cooling degree days. This index is based on population-weighted heating and cooling degree days, and it is a valuable tool for explaining year-to-year fluctuations in energy demand for residential heating and cooling.
Atlanta, GA - NVLAP Lab Code 101048-1Baton Rouge, LA - NVLAP Lab Code 200375-0Beltsville, MD - NVLAP Lab Code 200293-0Boston, MA - NVLAP Lab Code 101147-0Buffalo, NY - NVLAP Lab Code 200056-0Calgary, Alberta - NVLAP Lab Code 500100-0Carle Place, NY - NVLAP Lab Code 101048-10Charlotte, NC - NVLAP Lab Code 200841-0Chicago, IL - NVLAP Lab Code 200399-0Corporate - Cinnaminson, NJ - NVLAP Lab Code 101048-0Dallas, TX - NVLAP Lab Code 600111-0Denver, CO - NVLAP Lab Code 200828-0EMSL Canada - Montreal -- Quebec - NVLAP Lab Code 201052-0EMSL Canada -- Toronto - NVLAP Lab Code 200877-0EMSL Canada Inc. -- Ottawa - NVLAP Lab Code 201040-0Fort Lauderdale - NVLAP Lab Code 500085-0Houston, TX - NVLAP Lab Code 102106-0Huntington Beach, CA - NVLAP Lab Code 101384-0Indianapolis, IN - NVLAP Lab Code 200188-0Kernersville, NC - NVLAP Lab Code 102104-0Las Vegas, NV - NVLAP Lab Code 600140-0Miami, FL - NVLAP Lab Code 200204-0Minneapolis IH Lab (EAST) - NVLAP Lab Code 101234-0Minneapolis, MN (WEST) - NVLAP Lab Code 200019-0New York, NY - NVLAP Lab Code 101048-9Orlando, FL - NVLAP Lab Code 101151-0Pasadena, CA - NVLAP Lab Code 200232-0Phoenix, AZ - NVLAP Lab Code 200811-0Piscataway, NJ - NVLAP Lab Code 101048-2Plymouth Meeting, PA - NVLAP Lab Code 200699-0Plymouth, MI - NVLAP Lab Code 101048-4Raleigh, NC - NVLAP Lab Code 200671-0Rochester, NY - NVLAP Lab Code 600183-0S. Portland, ME - NVLAP Lab Code 500094-0Salem, NH - NVLAP Lab Code 201051-0San Diego, CA - NVLAP Lab Code 200855-0San Leandro, CA - NVLAP Lab Code 101048-3Seattle, WA - NVLAP Lab Code 200613-0St. Louis, MO - NVLAP Lab Code 200742-0Tampa, FL - NVLAP Lab Code 600215-0Vancouver, BC - NVLAP Lab Code 201068-0Wallingford, CT - NVLAP Lab Code 200700-0West Palm Beach, FL - NVLAP Lab Code 600206-0Weymouth, MA - NVLAP Lab Code 600217-0
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