NCDC added Alaska climate divisions to its nClimDiv dataset on Friday, March 6, 2015, coincident with the release of the February 2015 monthly monitoring report. For more information on this data, please visit the Alaska Climate Divisions FAQ.
Maps and Graphics:
PLEASE NOTE: All 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. Once
available, graphics based on final data will be provided on the
Climate Monitoring Products
For graphics covering periods other than those mentioned above or
for tables of national, regional, and statewide data from
1895-present, for March, last 3 months or other periods, please go
to the Climate At A Glance
For information on local temperature and precipitation records
during the month of March, please visit NCDC's Extremes page.
- For the contiguous United States, March 2007 was the second
warmest such month on record (based on preliminary data),
5.6°F (3.1°C) warmer than the 20th century mean of
42.5°F (5.8°C). Only March 1910 was warmer in the
113-year national record.
- Statewide temperatures were much warmer than average from parts
of the Midwest and Deep South to the Northern Plains and West
Coast. Most states of the Northeast and Florida were near average,
and no state was cooler than average for the month. The month tied
for the warmest on record for Oklahoma.
- More than 2500 daily record high temperatures were set from the
East to the West Coast during the month. On the 13th of March alone
more than 250 daily high temperature records were set. The earliest
high of 90°F (32°C) occurred in Las Vegas that day and
the daily record was broken by 6°F (3.3°C). For the month
as a whole more than 200 daily record highs of 90°F or greater
occurred in California, Arizona, Texas, Oklahoma, and areas of the
- The warmer-than-average March temperatures outside the
Northeast helped reduce residential energy needs for the nation.
Using the Residential Energy Demand Temperature Index (REDTI - an
index developed at NOAA to relate energy usage to climate), the
nation's residential energy demand was approximately 11 percent
lower than what would have occurred under average climate
conditions for the month.
- The persistent weather pattern that brought record and
near-record warmth to the contiguous U.S. helped Alaska to its
third coldest March on record. For the state as a whole, March was
12.5°F (6.9°C) cooler than average and 40 new daily low
temperatures were tied or broken.
- March precipitation was above average from parts of the
Northeast to the Upper Midwest and from the northern Plains to
Texas and New Mexico. Much needed rain helped end drought in large
parts of Texas, and for the state as a whole it was the wettest
March on record.
- But across the Deep South and Southeast, drier than average
conditions prevailed for a second straight month. Six states were
much drier than average from Louisiana and Arkansas to Florida. It
was the second driest March on record for Mississippi and the third
driest for Alabama.
- The persistently drier-than-average conditions contributed to
worsening drought conditions in the Deep South. At the end of March
severe drought stretched from southeastern Mississippi to northwest
Georgia and Tennessee and also affected southern Florida.
- March was also another month of below average rain and snowfall
in the West. The combination of unusual warmth and below average
snowfall during much of the month led to a continued deterioration
of mountain snowpack conditions in California, Arizona, Nevada, and
- Precipitation in southern California was also much below
average. In Los Angeles, the lack of rainfall during the usually
rainy winter season led to the driest water-year to date for the
city since records began in 1877. From July 1, 2006 through the end
of March downtown Los Angeles had received only 2.47 inches of
rain, almost one foot below the normal amount of rainfall for the
For additional details, see the Monthly and
Seasonal Highlights section below and visit the March Climate Summary page. For details and
graphics on weather events across the U.S. and the globe
please visit NCDC's Global Hazards
- Across the United States, extreme drought conditions were
observed in areas of California, Wyoming and Nebraska, as well as
northern Minnesota, southeastern Montana, parts of Texas and
northern Alabama. For more information on drought during March,
please visit the U.S. Drought
- El Niño-Southern Oscillation (ENSO) conditions are in a
ENSO-neutral state. Sea-surface temperatures (SST) anomalies
continued to cool to near- or below-average average across the
equatorial Pacific in March. Current forecasts indicate that a
transition from ENSO-neutral conditions to La Niña could occur
over the next 3 months. For additional information on ENSO
conditions, please visit the NCDC
ENSO Monitoring page and the latest
NOAA ENSO Advisory.
Monthly and Seasonal Highlights:
|For additional national, regional, and
statewide data and graphics from 1895-present, for March, the last
3 months or other periods, please visit the Climate At A Glance page.
- March Temperature: 2nd
warmest March in the 1895-2007 record. The preliminary
nationally averaged temperature was 48.11°F (8.95°C),
which was 5.58°F (3.10°C) above the 1901-2000 (20th
- March Precipitation:
35th driest nationally in the 1895-2007 record. An average of 2.17
inches (55 mm) fell over the contiguous U.S. in March, 0.23 inches
(6 mm) below the 20th century mean for the month.
- January - March Temperature
(3-Month): 30th warmest in the 1895-to-present record,
1.42°F (0.79°C) above the 20th century mean. The
preliminary nationally averaged January - March temperature was
- January - March Precipitation
(3-month): A total of 5.87 inches (149 mm) of precipitation
fell during this 3-month period, which corresponds to a ranking of
- October - March (6-month): The
national average temperature was the 18th warmest for this 6-month
period. The nationally-averaged temperature was 41.11°F
(5.06°C), which was 1.31°F (0.73°C) above the 20th
century mean. At 13.58 inches (345 mm), October - March
precipitation was above average and ranked as the 42nd wettest such
period in the 1895-2007 record.
- January to March
(Year-to-date): The 30th warmest January - March on record. The
nationally averaged year-to-date temperature was 37.45°F
(3.03°C), or 1.42°F (0.79°C) above the mean. The
year-to-date period was the 24th driest January - March in the
113-year record, receiving a national average of 5.87 inches (149
mm) of precipitation during the period, or 0.47 inches (12 mm)
above the 20th century mean.
- April 2006 - March 2007: The
6th warmest such period in the 1895-2007 record. The
preliminary nationally-averaged annual temperature was 54.34°F
(12.41°C), which was 1.54°F (0.86°C) above the mean.
Precipitation was near the mean for the April 2006 - March 2007
period, ranking it as the 52nd driest April - March in the 112-year
record. The nationally-averaged annual precipitation
accumulation was 29.08 inches (739 mm), or 0.06 inches (2 mm) below
the 20th century mean.
Other Statewide and Regional
Temperature: 3rd coldest on record (1918-2007) for March with
temperatures 12.5°F (6.9°C) below the 1971-2000 mean.
Temperature: 25th coolest on record (1918-2007) for the 3-month
period (January - March) with temperatures 3.4°F (1.8°C)
below the 1971-2000 mean.
- March temperatures for
tied for 1st warmest. 21 states, including Kansas
, had much above normal temperatures. Precipitation across Texas
was 1st wettest on record. South
Dakota, was 5th wettest, while Mississippi
were the 2nd and 3rd driest on record, respectively.
- January - March temperatures
Hampshire ranked 38th coldest on record. Montana
ranked 17th warmest. Alabama
ranked 1st driest for the January - March period, while Texas
ranked 3rd wettest.
- The East North Central, West North Central and South regions, had above average precipitation
for the January - March period.
- Temperatures over the past 6-months (October - March) were above
average in the all regions except the South and Southwest, which
were near normal. Precipitation for the period was 6th driest in
- October - March temperatures
were much above average for two states, New Jersey and Delaware. 28
states had above average or much above average precipitation,
York . California
experienced its 6th driest such period on record.
- During the Year-to-Date period
(January - March), temperatures were near average to above
average in all states except Vermont
ranked 1st driest for the period, Texas
ranked 3rd wettest for January - March.
- January - March
precipitation across the Southeast and West regions was much below
- April 2006 - March 2007 was
warmer or much-warmer-than-average for the lower 48 states except
for West Virginia. Indiana
was record wettest for the period.
See NCDC's Monthly
Extremes web-page for weather and climate records for the month
PLEASE NOTE: 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 the Climate Monitoring Products