|For additional national, regional, and
statewide data and graphics from 1895-present, for December, the
last 3 months or other periods, please visit the Climate At A Glance page.
- December 2006 was the
4th warmest December in the 1895-2006 record. The preliminary
nationally averaged temperature was 37.1°F (2.9°C), which
was 3.7°F (2.1°C) above the 1901-2000 (20th century)
- December had
near-average precipitation nationally, ranking as the 41st wettest
December in the 1895-2006 record. An average of 2.44 inches (62 mm)
fell over the contiguous U.S. in December, 0.2 inches (5 mm) above
the 20th century mean for the month.
- The 3-month period
(October-December) was the 11th warmest in the 1895-to-present
record, 1.8°F (1.0°C) above the 20th century mean. The
preliminary nationally averaged October-December temperature was
45.3°F (7.4°C). A total of 7.73 inches (196 mm) of
precipitation fell during this 3-month period, which corresponds to
a ranking of 13th wettest.
- The 6-month (July-December)
national average temperature was the 9th warmest such period on
record. The nationally-averaged temperature was 58.6°F
(14.8°C), which was 1.4°F (0.8°C) above the 20th
century mean. At 15.76 inches (400 mm), July-December precipitation
was above average and ranked as the 18th wettest such period in the
- January - December 2006 is
summarized in the 2006 annual climate
Regional and Statewide:
- December precipitation
was 2nd wettest on record and 6th wettest for the East
North Central region. Colorado, South Dakota, Iowa, Minnesota
and Wisconsin also ranked among the top ten wettest December
periods on record. Parts of the Tennessee Valley, Mid-Atlantic and
New England states experienced below average precipitation for the
month. Minnesota, New York, Vermont, New Hampshire and Connecticut
were each warmest on record during December. The Northeast region
was also warmest. None of the contiguous states experienced below
average temperatures during this period.
- October-December precipitation
was 3rd wettest on record. Eight additional states, confined to the
Great Lakes, Mid-Atlantic and New England, ranked among their top
ten wettest such periods. Vermont, New Hampshire and New Jersey
were each record warmest during the October-December period. Ten
additional states, primarily in the Northeast, ranked among the top
ten warmest such periods on record.
- In the Northeast region,
October-December precipitation was much above average. The West
region ranked 33rd driest during this 3-month period.
- The past 6-months
(July-December) temperatures were above- to much-above-average
across 8 of the 9 climate regions, with the Northeast and the East
North Central regions having their 4th and 7th warmest such periods
on record, respectively. Precipitation across the Southwest region
was the 7th wettest July-December period on record. The Northeast
ranked 9th wettest and the West region ranked 27th driest during
this period in 2006.
- July - December temperatures
were much above average across most of the northern third of the
contiguous U.S. and parts of the Mid-Atlantic. New Hampshire,
Vermont and Rhode Island were each record warmest for this period.
Sixteen states had temperatures which were much above average
during the July to December period. Indiana ranked 2nd wettest such
6-month period with over 28 inches (719 mm) of accumulated
precipitation. New Mexico and Colorado experienced their 4th and
5th wettest such period on record, respectively.
- The January-December
regional temperature across the West North Central and Northeast
regions was 2nd warmest in the 1895-2006 record. The South and East
North Central regions were 4th warmest. Every other region was
either above or much above average during this period. The
Northeast region was 6th wettest during the year-to-date
- The January-December period across
Alaska was near the the 1971-2000 mean: the 33rd warmest year
on record and the coolest such period since 1999.
- January - December 2006 was
either warmer or much-warmer-than-average for all of the contiguous
U.S. New Jersey was record warmest for the year. Montana, North
Dakota, Oklahoma, Texas, Vermont and New Hampshire were each 2nd
warmest on record for this period. New Hampshire also ranked 2nd
wettest for the year and Indiana 3rd wettest. Seven additional
states ranked among the top ten wettest such periods on record.
Florida ranked 3rd driest and Wyoming and Georgia each 5th