|For additional national, regional, and
statewide data and graphics from 1895-present, for September, the
last 3 months or other periods, please visit the Climate At A Glance page.
- September 2006 was the 31st
coolest September in the 1895-2006 record. The preliminary
nationally averaged temperature was 64.7°F (18.2°C).
- September had above-average
precipitation nationally, ranking as the 37th wettest September in
the 1895-2006 record. An average of 2.68 inches (68 mm) fell
over the contiguous U.S. in September, 0.2 inches (5 mm) above the
20th century mean for the month.
- The 3-month period (July-September)
was the 12th warmest in the 1895-to-present record. The
preliminary nationally averaged July-September temperature was
72.1°F (22.3°C). The warmest July-September period
on record occurred in 1998 (73.5°F or 23.1°C). A total of
8.23 inches (208 mm) of precipitation fell during this 3-month
period, which corresponds to a ranking of 32nd wettest.
- The 6-month (April-September)
national average temperature was the warmest such period on record.
The nationally-averaged temperature was 67.9°F
(20°C). At 15.56 inches (393 mm), April - September
precipitation was below-normal and ranked as the 40th driest such
period in the 1895-2006 record.
- January to September has been the
warmest such year-to-date period on record. The nationally
averaged year-to-date temperature was 58.3°F (14.6°C).
The previous record of 58.2°F (14.6°C) was set in
2000. The year-to-date period was the 29th driest
January-September in the 112-year record, receiving a national
average of 21.72 inches (548 mm) of precipitation during the
period, or 1.0 inches (24 mm) below the 20th Century average.
- October 2005 - September 2006 was
the 2nd warmest such period in the 1895-2006 record. The
preliminary nationally-averaged 12-month temperature was
55.1°F (12.8°C). Precipitation was below-average
for the October 2005 - September 2006 period, ranking it as the
37th driest October-September in the 111-year record. The
nationally-averaged 12-month precipitation accumulation was 28.40
inches (717 mm).
Regional and Statewide: