National Overview - December 2004


NCDC transitioned to the nClimDiv dataset on Thursday, March 13, 2014. This was coincident with the release of the February 2014 monthly monitoring report. For details on this transition, please visit our public FTP site and our U.S. Climate Divisional Database site.

Maps and Graphics:

December Most Recent 3 Months Most Recent 6 Months
Most Recent 12 Months Annual Summary for 2004 US Percent Area Very Wet/Dry/Warm/Cold

It should be emphasized that all of the temperature and precipitation ranks and values are based on preliminary data. The ranks will change when the final data are processed, but will not be replaced on these pages. Graphics based on final data are available on this page.

For graphics covering periods other than those mentioned above or for tables of national, regional, and statewide data from 1895-present, for December, last 3 months or other periods, please go to the Climate At A Glance page
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National Overview:

December:


For additional details, see the Monthly Highlights section. For details and graphics on weather events across the U.S. and the globe go to NCDC's Global Hazards page.
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Monthly and Seasonal Highlights:

National:


For tables of national, regional, and statewide data from 1895-present, for December, last 3 months or other periods, please go to the Climate At A Glance page.

  • December 2004 ranked as the 23rd warmest December in the 1895 to present record. The preliminary nationally averaged temperature was 35.7°F (2.1°C), which was 2.2°F (1.2°C) above the long-term mean.
  • December 2004 had near average precipitation, nationally, ranking 42nd driest.
  • October-December temperature was above average and ranked as the 11th warmest such period in the 1895 to present record. The preliminary nationally averaged temperature for October-December was 45.5°F (7.5°C) which was 1.9°F (1.1°C) above the long-term mean.
  • October-December had much above average precipitation, ranking 6th wettest in the last 110 years.
  • The January-December 2004 temperature was above average and ranked as the 24th warmest such period in the 1895 to present record. The preliminary nationally averaged temperature was 53.5°F (11.9°C) which was 0.7°F (0.4°C) above the long-term mean.
  • Precipitation was above average for January-December, ranking 6th wettest for the last 12 months based on a record of 110 such periods.

    Regional and Statewide:

  • December 2004 temperatures ranked much above average for 3 western states. A further 16 states in the contiguous U.S. had above average temperature.
  • Alaska temperatures were above average for December ranking 15th warmest since 1918 with an anomaly of 4.5°F (2.5°C)
  • December was wetter than average for 14 states, and drier than average for 17 states including South Dakota and Nebraska which had much below average precipitation.
  • The 3 month period, October-December, was warmer than average for much of the nation. Only 9 states were near average and no state was significantly cooler than average for the most recent 3 months.
  • October-December 2004 was wetter than average for much of the country, with 12 states having a much wetter-than-average 3 months.
  • January-December 2004 was warmer than average for much of the nation. Only 11 states in the contiguous U.S. were near average for temperature and only Maine was significantly cooler than average over the last year.
  • The last 12 months were much wetter than average for 10 states, with Pennsylvania having its 2nd wettest year.

    See NCDC's Monthly Extremes web-page for weather and climate records for the month of December.

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It should be emphasized that all of the temperature and precipitation ranks and values are based on preliminary data. The ranks will change when the final data are processed, but will not be replaced on these pages. Graphics based on final data are available on this page.

Citing This Report

NOAA National Climatic Data Center, State of the Climate: National Overview for December 2004, published online January 2005, retrieved on July 29, 2014 from http://www.ncdc.noaa.gov/sotc/national/2004/12.