Use the form below to select from a collection of monthly summaries recapping climate-related occurrences on both a global and national scale.
Global Climate ReportJanuary 2005
Global Highlights:
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Contents of this Section: |
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. |
![]() IntroductionTemperature anomalies for January are shown on the map 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 January 2005, mean temperatures were more than 3ยฐC above average from eastern Europe to Siberia. Above average temperatures were also widespread in much of the United States, Brazil, southern and eastern areas of Africa, and much of Australia. Temperatures were below average in Algeria and other parts of West Africa, much of Canada and the majority of the U.S.
Slightly above average sea surface temperatures are also evident in the product above. Warmer than average conditions covered large parts of the central and eastern Pacific reflecting weak, dissipating El Niรฑo conditions. Sea surface temperatures were also warmer than average in much of the northern Pacific and northern Atlantic. Cooler than average sea surface temperatures covered areas primarily in the Southern Hemisphere, in the southern Atlantic, Indian, and South Pacific Oceans. 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 January 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. |
Current Month
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January | Anomaly | Rank | Warmest Year on Record |
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Global Land Ocean Land and Ocean |
+1.06ยฐC (+1.91ยฐF) +0.47ยฐC (+0.85ยฐF) +0.65ยฐC (+1.17ยฐF) |
2nd warmest 2nd warmest 2nd warmest |
2002 (+1.42ยฐC/2.56ยฐF) 1998 (+0.54ยฐC/0.97ยฐF) 2002 (+0.73ยฐC/1.31ยฐF) |
Northern Hemisphere Land Ocean Land and Ocean |
+1.09ยฐC (+1.96ยฐF) +0.52ยฐC (+0.94ยฐF) +0.74ยฐC (+1.33ยฐF) |
5th warmest 2nd warmest 2nd warmest |
2002 (+1.81ยฐC/3.26ยฐF) 1998 (+0.55ยฐC/1.00ยฐF) 2002 (+0.92ยฐC/1.66ยฐF) |
Southern Hemisphere Land Ocean Land and Ocean |
+1.08ยฐC (+1.94ยฐF) +0.46ยฐC (+0.83ยฐF) +0.57ยฐC (+1.03ยฐF) |
warmest 5th warmest 2nd warmest |
2nd - 2003 (+0.99ยฐC/1.78ยฐF) 1998 (+0.55ยฐC/1.00ยฐF) 1998 (+0.61ยฐC/1.10ยฐF) |
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The most current data may be accessed via the Global Surface Temperature Anomalies page.
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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. |