Contents of This Report:
Through climate analysis, National Climatic Data Center scientists have identified nine climatically consistent regions within the contiguous United States which are useful for putting current climate anomalies into an historical perspective.
Additional information about current climate anomalies can be found at the respective Web Pages of the Southern Regional Climate Center, Western Regional Climate Center, Midwest Regional Climate Center, Southeast Regional Climate Center, High Plains Regional Climate Center, and the Northeast Regional Climate Center.
June-August 2000 Statewide Ranks
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June-August 2000 was the second warmest such season on record for Utah and the third warmest such season since 1895 for Nevada. Four other states ranked within the top ten warm portion including
- Wyoming -5th warmest
- Colorado - 6th warmest
- Arizona - 8th warmest
- New Mexico - 8th warmest
Fourteen additional states ranked within the warm third portion of the historical distribution for summer 2000.
Fourteen states, all in the northeastern quarter of the country, ranked within the cool third of the distribution.
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It was the fifth driest June-August on record for Alabama and the sixth driest such season on record for Florida. Fourteen other states ranked within the dry third of the distribution.
Nineteen states ranked within the wet third portion of the distribution including the sixth wettest June-August on record for Indiana and the seventh wettest such period since 1895 for North Dakota.
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June-August Regional Highlights
Based upon preliminary data, summer, June-August 2000, was the second warmest such season since 1895 for the Southwest region. The last seven such seasons have been above to much above the long term mean.
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Preliminary data indicate that June-August 2000 was the 18th coolest such season since 1895 for the Northeast region.
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It was the 13th driest summer on record for the Northwest. The predominant storm track has remained north of the region for the majority of the summer.
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Preliminary data indicate that June-August 2000 was the 20th wettest such season since 1895 for the East-North Central region. An upper-level trough has dominated the region for the majority of the summer season.
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June-August Precipitation and Temperature Ranks, Extremes and Normals
Table 1 shows precipitation and temperature ranks for each of the 9 regions and the nation for summer, June-August 2000.
1 = DRIEST/COLDEST, 106 = WETTEST/HOTTEST.
REGION PRECIPITATION TEMPERATURE
------ ------------- -----------
NORTHEAST 66 18
EAST NORTH CENTRAL 87 37
CENTRAL 79 39
SOUTHEAST 13 66
WEST NORTH CENTRAL 29 90
SOUTH 23 93
SOUTHWEST 35 105
NORTHWEST 13 87
WEST 47 97
NATIONAL 24 96
*National Temperature Rank Based on USHCN.
It should be emphasized that all of the temperature and precipitation ranks and values in Tables 1 and 2 are based on preliminary data. The ranks will change when the final data are processed.
Table 2 shows historical extremes for June-August, the 1961-1990 normal, and the summer 2000 value for each of the 9 regions and the contiguous U.S. for precipitation and temperature. It should be noted that the 2000 values will change when the final data are processed.
PRECIPITATION (INCHES)
DRIEST WETTEST NORMAL 2000
REGION VALUE YEAR VALUE YEAR PCPN PCPN
------ ---------- ---------- ------ ------
NORTHEAST 7.36 1913 15.15 1903 11.52 12.04
EAST NORTH CENTRAL 6.51 1910 16.40 1993 11.23 12.85
CENTRAL 6.32 1930 17.35 1958 11.91 13.25
SOUTHEAST 10.63 1980 21.76 1906 15.61 13.32
WEST NORTH CENTRAL 3.74 1917 12.11 1993 6.46 5.94
SOUTH 5.31 1954 13.55 1950 9.67 8.02
SOUTHWEST 2.75 1900 7.81 1921 4.72 4.23
NORTHWEST 0.80 1919 5.47 1983 3.17 1.88
WEST 0.24 1905 2.66 1913 1.30 0.88
NATIONAL 5.98 1930 10.24 1928 8.24 7.72*
* PRELIMINARY VALUE, CONFIDENCE
INTERVAL + OR - 0.44 INCHES
TEMPERATURE (DEGREES F)
COLDEST WARMEST NORMAL 2000
REGION VALUE YEAR VALUE YEAR TEMP TEMP
------ ---------- ---------- ------ ------
NORTHEAST 63.8 1903 70.4 1949 67.0 66.1
EAST NORTH CENTRAL 63.0 1915 71.5 1988 67.7 67.1
CENTRAL 70.5 1915 78.1 1934 73.3 73.4
SOUTHEAST 75.5 1967 80.1 1952 77.5 78.2
WEST NORTH CENTRAL 61.5 1915 71.4 1936 66.7 67.9
SOUTH 77.3 1992 83.8 1934 79.7 81.3
SOUTHWEST 68.2 1907 74.1 1994 71.0 73.1
NORTHWEST 59.5 1993 67.2 1961 63.7 64.6
WEST 68.1 1907 74.3 1918 71.3 72.9
NATIONAL* 69.7 1915 74.8 1936 72.1 73.2
* National Temperature Values based
on USHCN
For more information, refer to ... References:
Thomas R. Karl and Albert J. Koscielny, 1982: "Drought in the United States: 1895-1981." Journal of Climatology, vol. 2, pp. 313-329.
Thomas R. Karl and Walter James Koss, 1984: "Regional and National Monthly, Seasonal, and Annual Temperature Weighted by Area, 1895-1983." Historical Climatology Series 4-3, National Climatic Data Center, Asheville, NC, 38 pp.
NOAA's National Climatic Data Center is the world's largest active archive of weather data. The preliminary temperature and precipitation rankings are available from the center by calling: 828-271-4800.
Historical precipitation and temperature ranking maps are also available on the Internet courtesy of the Climate Prediction Center.
NOAA works closely with the academic and scientific communities on climate-related research projects to increase the understanding of El Niño and improve forecasting techniques. NOAA's Climate Prediction Center monitors, analyzes and predicts climate events ranging from weeks to seasons for the nation. NOAA also operates the network of data buoys and satellites that provide vital information about the ocean waters, and initiates research projects to improve future climate forecasts. The long lead climate outlooks are available from the Climate Prediction Center.
For all climate questions other than questions concerning this report, please contact the National Climatic Data Center's Climate Services Division:
Climate Services Division NOAA/National Climatic Data Center 151 Patton Avenue Asheville, NC 28801-5001 fax: 828-271-4876 phone: 828-271-4800 email: ncdc.orders@noaa.gov
For further information on the historical climate perspective presented in this report, contact:
William Brown NOAA/National Climatic Data Center 151 Patton Avenue Asheville, NC 28801-5001 fax: 828-271-4328 email: william.brown@noaa.gov
-or-
Jay Lawrimore NOAA/National Climatic Data Center 151 Patton Avenue Asheville, NC 28801-5001 fax: 828-271-4328 email: jay.lawrimore@noaa.gov
NCDC / Climate Research / Climate of 2000 / June-August / Search / Help
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Last Updated Wednesday, 06-Jul-2005 14:55:13 EDT by William.Brown@noaa.gov
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