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Contents of This Report:
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.
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November 2000 was the second coolest such month on record for Arizona, Idaho, Utah, and Wyoming and the third coolest such month since 1895 for California, Colorado, and Nebraska. Nine other states ranked within the top ten cool portion of the distribution.
A total of 30 states ranked within the cool third portion of the distribution. Only two states, Maine and New Hampshire, ranked within the warm third portion of the historical distribution for November 2000. |
| It was the second wettest November on record for Louisiana, third wettest for Texas, and the fourth wettest November since 1895 for North Dakota. Five other states ranked within the top ten wet portion of the distribution while a total of 15 states ranked within the wet third portion of the distribution.
No state ranked within the top ten dry portion of the distribution while 13 ranked within the dry third. |
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November Regional Highlights
| Based upon preliminary data, November 2000 was the coolest such month since 1895 for the Southwest region. This is in sharp contrast to November 1999, the second warmest such month on record. The last five such months have been above to much above the long term mean. |  larger image |
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It was the wettest November on record for the South region. Just last year, November was the fourth driest such month on record. |
| November 2000 was the 11th driest such month since 1895 for the West region. Eight of the last twelve such months have been much below the long-term mean. |  larger image |
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Preliminary data indicate that precipitation for the growing season-to-date, October-November 2000, averaged much above the long-term mean as the fifth wettest such period on record for the Primary Hard Red Winter Wheat Belt. The wettest such two-month period was just two years ago. |
January-November 2000 Statewide Ranks
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Thirty-six states ranked within the warm third portion of the historical distribution for January-November 2000 while 13 states ranked within the top ten warm including
No state ranked within the cool third of the historical distribution. |
| January-November 2000 was the driest such period on record for Florida and the ninth driest for Alabama and Georgia. Nine other states ranked within the dry third portion of the distribution.
It was the seventh wettest January-November on record for New York and North Dakota. Sixteen other states ranked within the wet third portion of the distribution. |
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January-November Regional Highlights
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Preliminary data indicate that January-November 2000 was the second warmest such period since 1895 for the Southwest region. The last seven such eleven-month periods have been much above the long-term mean. |
| Preliminary data indicate that the year-to-date, January-November 2000, was the 25th wettest such period on record for the Northeast region. Five of the last seven such periods have been much wetter than the long-term mean in this region. |  larger image |
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Preliminary data indicate that January-November 2000 was the eighth driest such period since 1895 for the Southeast region. Four of the last twelve such periods have been below to much below the long-term mean. |
Damage due to the drought has been summarized by NOAA and the Office of Global Programs in the Climatological Impacts section of the Climate Information Project. Crop impact information can be found at the USDA NASS (National Agricultural Statistics Service) and Weekly Weather and Crop Bulletin pages. Drought statements by local National Weather Service Offices can be found at the NWS Hydrologic Information Center. Drought threat assessments and other information can be found at NOAA's Drought Information Center.
November Precipitation and Temperature Ranks, Extremes and Normals
Table 1 shows precipitation and temperature ranks for each of the 9 regions and the nation for November 2000, the two-month period of October-November 2000, the six months of June-November 2000, and the past 12 months, December 1999-November 2000.
PRECIPITATION AND TEMPERATURE RANKS, BASED
ON THE PERIOD 1895-2000. 1 = DRIEST/COLDEST,
106 = WETTEST/WARMEST FOR NOVEMBER 2000,
106 = WETTEST/WARMEST FOR OCT-NOV 2000,
106 = WETTEST/WARMEST FOR JUN-NOV 2000,
105 = WETTEST/WARMEST FOR DEC 1999-NOV 2000.
NOV OCT-NOV JUN-NOV DEC 1999-
REGION 2000 2000 2000 NOV 2000
------ ---- --------- --------- ---------
PRECIPITATION:
NORTHEAST 30 17 34 71
EAST NORTH CENTRAL 89 62 72 63
CENTRAL 51 25 55 42
SOUTHEAST 81 22 21 5
WEST NORTH CENTRAL 90 99 47 45
SOUTH 106 102 54 41
SOUTHWEST 71 105 69 42
NORTHWEST 13 18 19 31
WEST 11 48 43 46
NATIONAL 81 78 42 26
TEMPERATURE:
NORTHEAST 54 54 22 80
EAST NORTH CENTRAL 45 70 58 100
CENTRAL 28 56 36 89
SOUTHEAST 36 27 35 68
WEST NORTH CENTRAL 6 14 53 101
SOUTH 8 32 71 101
SOUTHWEST 1 3 74 103
NORTHWEST 5 9 43 89
WEST 3 20 72 97
NATIONAL* 2 17 67 103
*National Temperature Rank Based on a combination of
USHCN and divisional data.
It should be emphasized that all of the temperature and precipitation ranks and values in Tables 1 through 5 are based on preliminary data. The ranks will change when the final data are processed.
Table 2 shows historical extremes for November, the 1961-1990 normal, and the November 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 0.88 1917 6.34 1983 3.84 2.64
EAST NORTH CENTRAL 0.20 1904 4.03 1931 1.89 2.47
CENTRAL 0.71 1904 7.71 1985 3.53 2.98
SOUTHEAST 0.83 1931 8.39 1948 3.30 3.69
WEST NORTH CENTRAL 0.06 1939 1.63 1896 0.74 1.07
SOUTH 0.20 1949 5.34 2000 2.63 5.34
SOUTHWEST 0.06 1904 2.37 1905 0.90 0.88
NORTHWEST 0.30 1936 7.61 1909 3.78 1.76
WEST 0.01 1929 5.56 1926 2.22 0.55
NATIONAL 0.88 1917 3.76 1983 2.32 2.52*
* PRELIMINARY VALUE, CONFIDENCE
INTERVAL + OR - 0.20 INCHES
TEMPERATURE (DEGREES F)
COLDEST WARMEST NORMAL 2000
REGION VALUE YEAR VALUE YEAR TEMP TEMP
------ ---------- ---------- ------ ------
NORTHEAST 32.3 1901 44.7 1931 38.7 38.3
EAST NORTH CENTRAL 24.9 1959 40.6 1999 33.1 32.1
CENTRAL 35.9 1976 51.4 1931 44.2 41.3
SOUTHEAST 48.2 1976 62.4 1985 55.0 52.9
WEST NORTH CENTRAL 17.3 1985 40.4 1999 30.9 23.9
SOUTH 45.5 1976 58.7 1909 52.5 48.5
SOUTHWEST 35.6 2000 46.9 1949 41.4 35.6
NORTHWEST 27.2 1985 42.8 1899 37.0 32.1
WEST 40.0 1994 51.8 1949 46.0 42.0
NATIONAL* 38.1 1911 48.4 1999 42.5 38.7
*National Temperature Rank Based on a combination of
USHCN and divisional data.
January-November Precipitation and Temperature Ranks, Extremes and Normals
Table 3 shows precipitation and temperature ranks for each of the 9 regions and the nation for January-November 2000. Based on the period 1895-2000.
REGION PRECIPITATION TEMPERATURE
------ ------------- -----------
NORTHEAST 82 71
EAST NORTH CENTRAL 68 101
CENTRAL 48 83
SOUTHEAST 8 66
WEST NORTH CENTRAL 48 97
SOUTH 42 101
SOUTHWEST 49 105
NORTHWEST 37 88
WEST 71 99
NATIONAL 30 103
*National Temperature Rank Based on a combination of
USHCN and divisional data.
Table 4 shows historical extremes for January-November, the 1961-1990 normal, and the January-November 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 29.53 1941 48.24 1996 38.18 39.84
EAST NORTH CENTRAL 19.03 1910 35.01 1951 29.06 29.65
CENTRAL 28.89 1901 48.60 1950 39.61 38.61
SOUTHEAST 34.32 1954 59.24 1929 47.16 38.95
WEST NORTH CENTRAL 10.91 1934 22.15 1915 16.27 16.00
SOUTH 22.14 1956 44.31 1957 33.23 31.01
SOUTHWEST 7.31 1956 20.88 1941 12.68 12.36
NORTHWEST 13.75 1929 30.87 1983 23.47 21.70
WEST 7.94 1929 26.48 1983 14.18 15.56
NATIONAL 22.54 1910 31.05 1973 27.16 25.88
TEMPERATURE (DEGREES F)
COLDEST WARMEST NORMAL 2000
REGION VALUE YEAR VALUE YEAR TEMP TEMP
------ ---------- ---------- ------ ------
NORTHEAST 45.3 1904 50.8 1998 47.8 48.5
EAST NORTH CENTRAL 42.2 1917 49.8 1931 45.8 48.0
CENTRAL 52.9 1979 58.8 1921 55.1 56.6
SOUTHEAST 62.2 1940 66.3 1921 63.8 64.6
WEST NORTH CENTRAL 42.1 1950 49.1 1934 45.5 47.4
SOUTH 61.9 1979 66.4 1921 63.7 66.0
SOUTHWEST 51.2 1917 56.4 1934 53.6 56.1
NORTHWEST 45.4 1955 52.0 1934 48.3 49.2
WEST 54.6 1912 59.4 1934 56.5 58.1
NATIONAL 52.6 1912 56.9 1934 54.5 56.3
*National Temperature Rank Based on a combination of
USHCN and divisional data.
Water Year River Basin Statistics, October-November 2000
Table 5 shows statistics for selected river basins: Precipitation rankings are for October-November 2000, where 1 = driest, and 106 = wettest, based on the period 1895 to 2000. Also shown is the areal percent of the basin experiencing severe or extreme long-term (Palmer) drought, and areal percent of the basin experiencing severe or extreme long-term (Palmer) wet conditions, as of November 2000.
PRECIPITATION % AREA % AREA
RIVER BASIN RANK DRY WET
----------- ------------- ------ ------
MISSOURI BASIN 95 21.1% 11.4%
PACIFIC NORTHWEST BASIN 19 10.9% 0.0%
CALIFORNIA RIVER BASIN 43 0.0% 0.0%
GREAT BASIN 90 0.0% 0.0%
UPPER COLORADO BASIN 76 0.0% 0.0%
LOWER COLORADO BASIN 103 0.0% 18.3%
RIO GRANDE BASIN 105 1.6% 7.3%
ARKANSAS-WHITE-RED BASIN 100 0.0% 0.0%
TEXAS GULF COAST BASIN 99 0.0% 0.0%
SOURIS-RED-RAINY BASIN 102 0.0% 88.6%
UPPER MISSISSIPPI BASIN 57 0.0% 1.3%
LOWER MISSISSIPPI BASIN 91 0.0% 0.0%
GREAT LAKES BASIN 28 16.2% 10.9%
OHIO RIVER BASIN 16 0.0% 7.6%
TENNESSEE RIVER BASIN 31 0.0% 0.0%
NEW ENGLAND BASIN 37 0.0% 7.7%
MID-ATLANTIC BASIN 7 0.0% 0.0%
SOUTH ATLANTIC-GULF BASIN 46 22.0% 0.0%
The river basin regions are defined by the U.S. Water Resources Council.
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 DivisionFor further information on the historical climate perspective presented in this report, contact:
NOAA/National Climatic Data Center
151 Patton Avenue
Asheville, NC 28801-5001
fax: 828-271-4876
phone: 828-271-4800
email: ncdc.info@noaa.gov
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 / November / Search / Help
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http://lwf.ncdc.noaa.gov/oa/climate/research/2000/nov/us_regional.html Downloaded Thursday, 24-Jul-2008 00:59:24 EDT Last Updated Thursday, 07-Jul-2005 09:08:45 EDT by William.Brown@noaa.gov Please see the NCDC Contact Page if you have questions or comments. |
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