Global Analysis - March 2005


Global Highlights:

  • Based on preliminary data, global averaged combined land and sea surface temperature for March 2005 was 3rd warmest on record.
  • March temperatures were above average over Alaska, the western U.S, Algeria and Siberia. Colder-than-average conditions occurred primarily in the eastern U.S., southeastern Asia and far western Russia
  • Precipitation during March was above average over the eastern U.S., Turkey, and Thailand, with drier than average conditions over the Mississippi Valley of the U.S., most of Australia and Europe.
  • Sea Surface Temperatures (SSTs) decreased in the eastern equatorial Pacific during March

Contents of this Section:

This is a break in the document
The data presented in this report are preliminary. Ranks and anomalies may change as more complete data are received and processed. The most current data may be accessed via the Global Surface Temperature Anomalies page.
This is a break in the document

Top of PageIntroduction

Temperature anomalies for March 2005 are shown on the two maps below. The dot map on the left uses anomalies that were calculated from the Global Historical Climatology Network (GHCN) data set of land surface stations using a 1961-1990 base period. The map on the right is a weekly product based on data from the Comprehensive Ocean-Atmosphere Data Set (COADS) of SST data. During March, there were above average temperatures over Alaska, western Canada and the western U.S., Brazil, the majority of West Africa, western Australia, western Europe and parts of Asia. Cooler than average temperatures were observed over parts of Scandinavia, parts of the Middle East, southeastern Asia, the majority of eastern Europe and west of the Ural Mountains in Russia.

current month's Temperature Dot map
larger image
end of month weekly SST map
larger image

Above average SSTs are also evident in the product above. Warmer than average conditions occurred over large parts of the central Pacific, with cool anomalies present in the eastern Pacific, reflecting weakening El Niño conditions. SSTs were also warmer than average in much of the northern Pacific and northern Atlantic. Cooler than average SSTs were observed over areas northwest of the Hawaiian Islands, off the coast of Ecuador and Peru as well as off the eastern seaboard of the U.S.

The mean position of upper level ridges of high pressure and troughs of low pressure (depicted by positive and negative 500 millibar height anomalies on the March 2005 map) are generally reflected by areas of positive and negative temperature anomalies at the surface, respectively. For other Global products see the Climate Monitoring Global Products page.

Images of sea surface temperature conditions are available for all months during 2005 at the weekly SST page

This is a break in the document

Top of Page Temperature Rankings and Graphics

Current Month / Year-to-date
March Anomaly Rank Warmest Year on Record
Global
Land
Ocean
Land and Ocean
+1.21°C (+2.18°F)
+0.43°C (+0.77°F)
+0.67°C (+1.21°F)
6th warmest
3rd warmest
3rd warmest
2002 (+1.60°C/2.88°F)
1998 (+0.48°C/0.86°F)
2002 (+0.79°C/1.42°F)
Northern Hemisphere
Land
Ocean
Land and Ocean
+1.13°C (+2.03°F)
+0.42°C (+0.76°F)
+0.71°C (+1.28°F)
8th warmest
2nd warmest
7th warmest
1990 (+1.90°C/3.42°F)
1998 (+0.49°C/0.88°F)
2004 (+0.92°C/1.66°F)
Southern Hemisphere
Land
Ocean
Land and Ocean
+1.35°C (+2.43°F)
+0.45°C (+0.81°F)
+0.62°C (+1.12°F)
warmest
3rd warmest
warmest
2nd-1998 (+1.05°C/1.90°F)
2002 (+0.51°C/0.92°F)
2nd-2002 (+0.59°C/1.06°F)

Global Land and Ocean Triad plot
larger image
Global Hemisphere Triad plot
larger image

January-March Anomaly Rank Warmest Year on Record
Global
Land
Ocean
Land and Ocean
+0.84°C (+1.51°F)
+0.44°C (+0.79°F)
+0.56°C (+1.01°F)
10th warmest
2nd warmest
4th warmest
2002 (+1.50°C/2.70°F)
1998 (+0.51°C/0.92°F)
2002 (+0.75°C/1.35°F)
Northern Hemisphere
Land
Ocean
Land and Ocean
+0.77°C (+1.39°F)
+0.46°C (+0.83°F)
+0.58°C (+1.04°F)
13th warmest
2nd warmest
7th warmest
2002 (+1.84°C/3.31°F)
1998 (+0.53°C/0.95°F)
2002 (+0.95°C/1.71°F)
Southern Hemisphere
Land
Ocean
Land and Ocean
+0.94°C (+1.70°F)
+0.45°C (+0.81°F)
+0.54°C (+0.97°F)
warmest
6th warmest
2nd warmest
2nd-1998 (+0.80°C/1.44°F)
1998 (+0.53°C/0.95°F)
1998 (+0.58°C/1.04°F)

Global Land and Ocean Triad plot
larger image
Global Hemisphere Triad plot
larger image

The most current data may be accessed via the Global Surface Temperature Anomalies page.

This is a break in the document

Top of Page Precipitation

The maps below represent anomaly values based on the GHCN data set of land surface stations using a base period of 1961-1990. During March 2005, above average precipitation fell over parts of the northeastern and southeastern U.S, Chile, Bangladesh, Indochina and western Russia. Below average precipitation was observed over the east-central region of the U.S., the majority of Europe, most of Australia, and South Africa.

Precipitation Dot map in Millimeters
larger image
Percent Precipitation Dot map
larger image

This is a break in the document

Top of Page ENSO SST Analysis




the last week of the month's ENSO condtions Map
Click here for animated loop



  • SSTs decreased in the eastern equatorial Pacific during March, indicating that ENSO is transitioning from a weak warm phase (El Niño) to neutral conditions (shown in the adjacent animation of weekly sea surface temperature anomalies). A comprehensive summary of March 2005 ENSO conditions can be found on the ENSO monitoring page. For the latest advisory on ENSO conditions go to NOAA's Climate Prediction Center (CPC) and the CPC ENSO Diagnostic Discussion

  • Images of sea surface temperature conditions are available for all months during 2005 at the weekly SST page

This is a break in the document

Top of Page References

Peterson, T.C. and R.S. Vose, 1997: An Overview of the Global Historical Climatology Network Database. Bull. Amer. Meteorol. Soc., 78, 2837-2849.

Citing This Report

NOAA National Climatic Data Center, State of the Climate: Global Analysis for March 2005, published online April 2005, retrieved on July 31, 2014 from http://www.ncdc.noaa.gov/sotc/global/2005/3.