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Outside Asylum Take a walk, smell the roses. Any topic is fine, save people bashing. |
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Outside Asylum Take a walk, smell the roses. Any topic is fine, save people bashing. |
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In Reply to: Chicago had a very mild summer.... posted by Dalton on January 10, 2007 at 11:15:28:
Here you go, much more at the link.The 2006 average annual temperature for the contiguous U.S. was the warmest on record and nearly identical to the record set in 1998. Based on preliminary data, the 2006 annual average temperature was 55°F, 2.2°F (1.2°C) above the 20th Century mean and 0.07°F (0.04°C) warmer than 1998.
NOAA originally estimated in mid-December that the 2006 annual average temperature for the contiguous United States would likely be 2°F (1.1°C) above the 20th Century mean, which would have made 2006 the third warmest year on record, slightly cooler than 1998 and 1934, according to preliminary data. Further analysis of annual temperatures and an unusually warm December caused the change in records.
These values were calculated using a network of more than 1,200 U.S. Historical Climatology Network stations. These data, primarily from rural stations, have been adjusted to remove artificial effects resulting from factors such as urbanization and station and instrument changes which occurred during the period of record.
An improved data set being developed at NCDC and scheduled for release in 2007 exploits recent scientific advances that better address uncertainties in the instrumental record. Because different algorithms were used in making adjustments to the station data which comprise both data sets, there are small differences in annual average temperatures between the two data sets. These small differences in average temperatures result in minor changes in annual rankings for some years. Athough undergoing final testing and development, this new data set also shows 2006 and 1998 to be the two warmest years on record for the contiguous U.S., but with 2006 slightly cooler than 1998.
The top 25 warmest years on record from both data sets are shown below. Both data sets reflect the unusually warm conditions in the contiguous U.S. during both 1998 and 2006. Both data sets also show that the past nine years have all been among the 25 warmest years on record for the contiguous U.S., a streak which is unprecedented in the historical record. This is clearly evident in the time series from the USHCN V1 operational data set.
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Follow Ups
- How they compile the statistics - GliderGuider 01/10/0711:22:59 01/10/07 (1)
- Thanks GliderGuider. - Dalton 12:25:18 01/10/07 (0)
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