May global data

[Matt-hurricanewatcher]

WIDESPREAD WARMTH LEADS TO THE FIFTH WARMEST SPRING FOR U.S. DRIEST SPRING ON RECORD ACROSS THE SOUTHEAST WORSENS DROUGHT


The fifth warmest spring on record for the contiguous U.S. occurred in 2007, according to scientists at NOAA's National Climatic Data Center in Asheville, N.C. A severe-weather outbreak in the nation's midsection brought devastating tornadoes in early May, while a record-dry spring in the Southeast led to worsening drought conditions. Continued extreme dryness in May east of the Mississippi River and in the Far West expanded the drought area. The global land-surface temperature was the highest for the month of May, as well as for boreal spring. The combined global land- and ocean-surface temperature was fourth warmest for May, and tied with 1998 as the warmest January-May period.


U.S. Temperature Highlights for May
For the contiguous U.S., the average temperature for May was 63.14°F (17.30°C), which was 2.08°F (1.16°C) above the 20th century mean and the 11th warmest May on record, based on preliminary data.

In May, most of the contiguous U.S. was warmer-than-normal with only Texas and South Carolina colder-than-normal for the month.

Alaska had its 16th warmest May since official records began in 1918, 1.40°F (0.78°C) above normal. However, spring overall was the 38th coolest for the state, 1.73°F (0.96°C) below normal.

Warmer-than-average May temperatures in the northern U.S. combined with cooler-than-average temperatures in the Southeast and parts of Texas created milder overall conditions and helped decrease 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 4.4 percent lower than what would have occurred under average climate conditions for the month.

U.S. Temperature Highlights for Spring
For spring 2007 (March-May), the average temperature for the continental U.S. was 54.38°F (12.43°C), which was 2.49°F (1.38°C) above the 20th century mean and the fifth warmest spring on record, based on preliminary data. The four warmest springs in order are 1910, 2004, 2000 and 1934.

This was the third warmest spring for Wyoming and Missouri, while it was the fourth for Illinois and Nevada. This was the fifth warmest spring on record for the Central and Western North-Central regions of the country.

Spring energy demand was closer to normal nationwide based on the REDTI (approximately 1 percent lower than average). The effect of near-average to cooler-than-average spring temperatures on energy demand for heating in the heavily populated Northeast and parts of the South was offset by warmer-than-average temperatures in the central and western U.S.



Global Highlights
The combined global land and ocean surface temperature for May was the fourth warmest on record, 0.95°F/0.53°C above the 20th century mean. The global surface temperature for the combined January-May period tied with 1998 as the warmest January-May on record.

Separately, the global land-surface temperature was the warmest on record for May, as well as for boreal spring (March-May) and the year-to-date period. The May ocean-surface temperature was the ninth warmest in the 128-year period of record as near-average to cooler-than-average conditions were present across the equatorial Pacific.

During the past century, global surface temperatures have increased at a rate near 0.11°F (0.06°C) per decade, but the rate of increase has been three times larger since 1976, or 0.32°F (0.18°C) per decade, with some of the largest temperature increases occurring in the high latitudes of the Northern Hemisphere.
http://www.ncdc.noaa.gov/oa/climate/res ... may07.html

http://www.ncdc.noaa.gov/oa/climate/res ... .html#Temp


Looking at the data this May had the warmest land surface globally ever. Which is hard to believe. But the 9th warmest oceans which made the overall globe the 4th warmest.

Land was .95c(1.71f) to .94c/1.69c for 2005. But the Oceans .37c/.67f was the 9th warmest...Which 98 had .54c/.97f. So land to ocean overall was the 4th with .53c/.95f to 98 .62c/1.12f.

Looking at the northern Hemisphere the land surface was the warmest on record. UNBELIEVEABLE. 1.16c/2.09f broke 2000 that had 1.05c/1.89f. The oceans once again destroyed it with having the 8th warmest...The Southern Hemisphere had the 24th warmest with .34c/.61f to 1981 with 1.11c/2.00f overall it was the 11th warmest. It is very amazing that the southern Hemisphere would be so much cooler.

For March-May Globally had the warmest for land with 1.16c/2.09f to 2005 1.13c. Oceans again 8th warmest. So overall land and ocean was 3rd warmest. .05c cooler then the record for 2005. Northern Hemisphere was a record with .77c/1.39f.

Southern Hemisphere 8th warmest spring on land and 9th for the oceans. So 8th overall. The southern Hemisphere kills the global warming debate I would say.


Globally for January-May unbelievely was the warmest first half of a year ever. The oceans kepted it from running away with the turkey with them being 6th. But land was .01c warmer then 2002.

Northern Hemisphere .83c to 2002 .76c. Making it the warmest overall again. Again where is the global warming? The trend has been almost flate since 98 or maybe a slight warm up of maybe .20c tops? The southern Hemisphere for the period was 6th with .45c while record was 98 with .61c.

http://www.ncdc.noaa.gov/img/climate/re ... 007_pg.gif

http://www.ncdc.noaa.gov/img/climate/re ... 007_pg.gif

This year is very very close to being out paced by 2005...If the southern Hemisphere doe's not stop being cool.

I expect we won't warm up any more then .10c clear into 2015. That is may thinking.

[Matt-hurricanewatcher]

A few things to note...

1# 2007 land globally, is warmer for January-May. 98,2005 both had warm oceans...2007 has a cooler ocean. This should say something, that the trend maybe warming once more. 2# The overall sea ice melt for 2007 on one chart is slightly higher then the last few years. Which could mean that the oceans under it are not as warm. Doe's not mean that the overall Atmosphere is cooling; but the ocean is very important.

I say global warming and overall temperature has not changed much over the last 5-7 years.

[x-y-no]

I was going to say something about wobble-watching ... but maybe not.

[Matt-hurricanewatcher]

The "fact" is it has not warmed up since 2005. Just up and down overall...I'm waiting for a upwards trend, even so I did say I expect some warming.(Its possible I guest)

I don't understand why they are not noting that the overall temperature has not been warming up in recent years. Maybe slightly but if you think about it it will have a hard time warming 2-5c over the next 92-93 years.

[WindRunner]

I was going to say something about wobble-watching ... but maybe not.

Really . . . my philosophy has always been "wake me up in 100 years when the real data starts to come in!" . . .

[Matt-hurricanewatcher]

Warmer-than-average May temperatures in the northern U.S. combined with cooler-than-average temperatures in the Southeast and parts of Texas created milder overall conditions and helped decrease 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 4.4 percent lower than what would have occurred under average climate conditions for the month.


WOW global warming decreases energy deman. That is a good thing.