Thread: October was hottest on record

October was hottest on record in San Diego

By Gary Robbins | 10:57 a.m. Nov. 1, 2015

A sublime October day at Torrey Pines. — Gary Robbins
San Diego experienced the warmest October on record with an average monthly temperature of 74.4 degrees.

That's 7.7 degrees above average, says the National Weather Service.

The balmy reading at San Diego's Lindbergh Field broke the previous October average of 72.2, set in 1983. The third warmest October -- 71.8 -- occurred last fall.

Forecasters say the warm weather was heavily influenced by the ocean, which has been unusually warm for most of the past year. Warm water moderates air temperatures.

Sea surface temperatures were 70 or above along the entire coast in October. The seasonal average is 64-65 0degrees.

Sea surface temperatures have not cooled off with the start of fall. Image taken Sunday at La Jolla Cove. — John Gastaldo

Scientists say the warmth of the ocean could be tied to both a period long-term warming of the Pacific and the El Nino that developed earlier this year.

The weather is expected to sharply change late Monday when a weak storm tracks through San Diego County.

About one-quarter of an inch of rain is expected along the coast.

October recap:
There were seven days in which the temperature was 10 or more degrees above normal in San Diego. There was only one day in which the temperature was below normal. The airport recorded 0.43'' of rain, which was 0.14'' below normal.

October was hottest on record in San Diego

October set heat records for metro Phoenix - after dark

Weldon B. Johnson, The Republic | azcentral.com8:43 a.m. MST November 2, 2015


(Photo: Jeffrey Lowman/The Republic)

If you don’t remember that October heatwave, don’t worry. Chances are you slept through most of it.

From Oct. 13-17, Phoenix experienced a string of record temperatures before cooling rains came along to break the streak.

Those records were for warmest overnight low temperatures. Overnight lows for those five days ranged from 72 to 76 degrees. The normal overnight low is about 65 degrees.

October 2015 continued the trend of warm nights in Phoenix. May has been the only month in 2015 with an average minimum temperature lower than normal.

The average low of 68.8 degrees is 4 degrees above the 30-year normal for October. The year-to-date average minimum of 69.2 is 2.8 degrees over the normal level.


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Mark O’Malley, a meteorologist with the National Weather Service in Phoenix who specializes in climatological issues, said the pattern of warm nights is part of a long-term trend.

“The southwest region is progressively becoming warmer,” O’Malley said. “That’s been exacerbated in Phoenix in particular because of the expansion of the city and the urban heat island.”

The urban heat-island effect refers to the fact that developed areas are often warmer than their surroundings because of an abundance of asphalt, concrete and buildings in cities. Those surfaces hold on to heat longer than undeveloped surfaces.

AZCENTRAL Got fall? Arizona in October is too dang hot

O’Malley pointed at climate change as the reason the region is getting warmer.

“The entire southwest United States is warming due to climate change," O'Malley said. "All of the southwest has seen warmer overnight lows and somewhat warmer afternoon temperatures. But in particular, the low temperatures have been warmer over the past 20 to 30 0years, versus the long-term average.”

Cool cloud formation Sunday (Aug. 20, 2015) from

Daily high temperatures also have been running above normal this year. The October high temperature average was 90 degrees (1.5 degrees above normal) and the year-to-date average is 91.9 degrees (2 degrees above normal).

On Oct. 14, Phoenix tied the high temperature record for that date when it reached 100 degrees at Phoenix Sky Harbor International Airport.

But the biggest warming trend has been seen in the overnight lows.

“When the entire atmospheric column is warmer, it holds the warmth longer,” O’Malley said. “It can hold more moisture, so a lot of times you can have more cloud cover. There are a multitude of reasons you don’t get that overnight cooling.”

Oct. 2015 by the numbers
Average high: 90 degrees, tied for 31st warmest since 1896 (normal is 88.5, record is 95.8 in 1952).
Average low: 68.8, 4th warmest minimum (normal is 64.8, record is 70.8 in 2003).

Average temperature: 79.4, tied for seventh warmest (normal is 76.7, record is 82.7 in 2003).

Precipitation: 0.74 inches, (normal is 0.58, record is 4.4 inches in 1972).

http://www.azcentral.com/story/news/...dark/74906380/

October goes down as 2nd warmest on record in Seattle

By Scott Sistek Published: Nov 2, 2015 at 1:54 PM PST




Photo courtesy: Jason Shipley

Well, the "Blob" of warm waters off the Pacific Coast that's been giving our temperatures a boost for a year and a half now has sure done one thing:

It's making its records hard to break.

With an average temperature of 57.2 degrees, October 2015 will go down as the second-warmest on record in Seattle (Sea-Tac Airport) where records have been kept since 1945. It would have easily shattered the record for warmest October---had the record not already been shattered last year. Last October had an average temperature of 58.0 degrees; the record prior to 2014 was 56.4. A typical October would be around 52.8 degrees. The measurements from 2014 and 2015 in Seattle would have even been warmer than a typical October in Medford -- in southern Oregon!

While February 2014 started the current stretch of heat, and summer of 2014 was when we started getting into Top 3 all-time record hot months; October was the first month that began a stretch of where 6 of the next 10 months would become the hottest on record. In many cases the gap between the old record and new record was sizeable.

So now with much loftier records and a slowly weakening Blob (although a pretty strong El Nino), I anticipate the new records will be tough to beat a second time, but long range climate models predict the rest of autumn and winter will remain warmer than normal.

http://www.komonews.com/weather/blog...339541642.html

Southern California saw hottest October on record

KPCC staff

November 02, 08:15 AMSoCal can expect spotty showers after 2 or 3 p.m. on Monday.NATIONAL WEATHER SERVICE







Southern California experienced the hottest October on record, but starting Monday residents will get relief as cooler temperatures settle in.

A large pool of warm water known as "the Blob" has caused the Pacific to heat up by nearly 10 degrees. That means no cool ocean breezes or marine layer to offset hot temperatures on land, Robbie Monroe with the National Weather Service told KPCC.

Temperatures in some areas broke records by several degrees last month, according to the weather service.

The average mean temperature in downtown Los Angeles was 75.6 degrees last month — shattering the previous record of 74.2, in place since 1983, the Associated Press reports.

Camarillo recorded an average monthly temperature 10 degrees above normal, Monroe told KPCC.

The weather service said October 2015 also set records in Woodland Hills, Santa Barbara, Burbank and Oxnard, according to AP.

On Monday, the Southland can expect a shift in that weather, with spotty showers after 2 p.m. or 3 p.m. and the highest temperatures hitting the mid-60s to low 70s. That's about 10 degrees below normal for this time of year, Rich Thompson at NWS told KPCC.

"We're gonna have really strong gusty winds," said Thompson.

"After Wednesday though, we're back to dry, above average temperatures."

http://www.scpr.org/news/2015/11/02/55401/southern-california-saw-hottest-october-on-record/

They can deny climate change all they want but for several years now it feels more like Richmond Va than Philadelphia Pa here. A visitor from Canada said they used to have 6mths of winter and now only 3mths and have greenery they never had before. Alaska residents are besides themselves with over 90degree summers. They never owned fans before. The worst is pollens never die nor the mosquitos and other pests. It doesn't stay cold enough for long enough. The oceans are acidifying - it is dangerous, creates thriving conditions for fungi, bacteria, lessens our safe water/food supplies. And the severe storms etc

The earth is tilting on its axis and/or fossil fuels - whatever, we should not be inhaling, eating and drinking polluted, cancer causing and heart attack causing materials. Renewable energy sources need to be expanded and fossil fuels decreased.

Someone send this news to Al Gore fast please!

W

Al knows @ it, been involved since his college days.

Imagine if he would have been able to be the pres instead of gw which was enabled by jeb and his Floridian hanging chads.

We would not have the loss of life and maiming of our soldiers that were actually our Nation Guard units. We would not be in a major financial hole. Isis would not exist and all the muslims would not be invading EU nor coming here as "refugees". And our border would not have been opened wide. Never saw a mexican up north here till 2004, during gw's term and they came in droves.

04.11.2015 05:41

Satellite Data: Warmest October On Record




Average temperature anomalies for the lower troposphere in October 2015. Broken lines circle areas that are cooler than seasonal norms and solid line circle areas that are warmer than seasonal norms. Courtesy: UAH



Monthly average global temperature anomalies for the lower troposphere from December 1978 through to October 2015. Courtesy: UAH.


Global air temperatures set a new record in October due to the ongoing El Niño Pacific Ocean warming event, according to data released by the University of Huntsville in Alabama (UAH).

Satellite data shows that the temperature anomaly - the variance to the long-term average - for the global lower troposphere in October was +0.43^oC. This makes October 2015 the warmest October reported since satellite measurements of atmospheric temperature began in 1979, according to UAH.

“We thought this El Niño had the potential to be a record setter for some of the quantities we track, and it isn’t disappointing,” climate scientist John Christy of UAH is reported as saying in a UAH news release (below). “Not only is this a strong El Niño, but the transient warming we see from it is superimposed on top of the slowly rising global base temperature. The satellite temperature dataset shows an overall warming of about 0.39^oC during the past 36 years. Put a strong El Niño on top of that and we shouldn’t be surprised at what we saw in October.”

The global, hemispheric, and tropical lower troposphere anomalies (in ^oC) from the 30-year (1981-2010) average for the last ten months using the new UAH Version 6.0 analysis software are:

YR MON GLOBAL NH SH TROPICS
2015 1 +0.28 +0.40 +0.16 +0.13
2015 2 +0.18 +0.30 +0.05 -0.06
2015 3 +0.17 +0.26 +0.07 +0.05
2015 4 +0.09 +0.18 -0.01 +0.10
2015 5 +0.29 +0.36 +0.21 +0.28
2015 6 +0.33 +0.41 +0.25 +0.46
2015 7 +0.18 +0.33 +0.03 +0.48
2015 8 +0.28 +0.25 +0.30 +0.52
2015 9 +0.25 +0.34 +0.17 +0.52
2015 10 +0.43 +0.64 +0.21 +0.53

Warmest October months (1979-2015)
(Warmer than seasonal norms - anomaly ^oC)
2015 +0.43
1998 +0.40
2003 +0.29
2005 +0.28
2014 +0.26

Here is the text of a news release issued by the University of Alabama in Huntsville regarding temperature data for October 2015:
Global Temperature Report: October 2015
Global climate trend since Nov. 16, 1978: +0.11 C per decade
Global composite temp.: +0.43 C (about 0.77 degrees Fahrenheit) above 30-year average for October.
Northern Hemisphere: +0.64 C (about 1.15 degrees Fahrenheit) above 30-year average for October.
Southern Hemisphere: +0.21 C (about 0.38 degrees Fahrenheit) above 30-year average for October.
Tropics: +0.53 C (about 0.95 degrees Fahrenheit) above 30-year average for October.
Global Composite: +0.25 C above 30-year average
Northern Hemisphere: +0.34 C above 30-year average
Southern Hemisphere: +0.17 C above 30-year average
Tropics: +0.52 C above 30-year average
(All temperature anomalies are based on a 30-year average (1981-2010) for the month reported.)
Powered by an El Niño Pacific Ocean warming event, temperatures in October set records globally, in the Northern Hemisphere and the Tropics, while temperatures in the Southern Hemisphere pushed toward the upper end of the dataset, said Dr. John Christy, director of the Earth System Science Center at The University of Alabama in Huntsville. October 2015 was the warmest October in the 36-year satellite temperature record, pushing past October 1998 during what was then called the El Niño of the Century.

Date Warmer than seasonal norms
2015 +0.43 C
1998 +0.40 C
2003 +0.29 C
2005 +0.28 C
2014 +0.26 C

Date Warmer than seasonal norms
2015 +0.64 C
1998 +0.48 C
2003 +0.46 C
2005 +0.35 C
2013 +0.33 C

Date Warmer than seasonal norms
2015 +0.53 C
1987 +0.40 C
1998 +0.37 C
2009 +0.34 C
2003 +0.33 C

In the Northern Hemisphere, October 2015 registered the third largest deviation from seasonal norms in the 443 month satellite temperature record, making it the third “warmest” month in the Northern Hemisphere since December 1978. October 2015 trailed only April 1998 (+0.85 C) and February 1998 (0.69 C) as the “warmest” month in the Northern Hemisphere.

“We thought this El Niño had the potential to be a record setter for some of the quantities we track, and it isn’t disappointing,” Christy said. “Not only is this a strong El Niño, but the transient warming we see from it is superimposed on top of the slowly rising global base temperature. The satellite temperature dataset shows an overall warming of about 0.39 C during the past 36 years. Put a strong El Niño on top of that and we shouldn’t be surprised at what we saw in October.”

Compared to seasonal norms, the warmest average temperature anomaly on Earth in October was over east Antarctica in Queen Maud Land. The October temperature there averaged 3.97 C (about 7.15 degrees F) warmer than seasonal norms. Compared to seasonal norms, the coolest average temperature on Earth in October was southwest of New Zealand on the edge of the southern ocean, where the average October 2015 temperature was 3.33 C (about 5.99 degrees F) cooler than normal.

The complete version 6 beta lower troposphere dataset is available here:

vortex.nsstc.uah.edu/data/msu/v6.0beta/tlt/uahncdc_lt_6.0beta3
Archived color maps of local temperature anomalies are available on-line at:
nsstc.uah.edu/climate/

As part of an ongoing joint project between UAHuntsville, NOAA and NASA, Christy and Dr. Roy Spencer, an ESSC principal scientist, use data gathered by advanced microwave sounding units on NOAA and NASA satellites to get accurate temperature readings for almost all regions of the Earth. This includes remote desert, ocean and rain forest areas where reliable climate data are not otherwise available.

The satellite-based instruments measure the temperature of the atmosphere from the surface up to an altitude of about eight kilometers above sea level.

Once the monthly temperature data is collected and processed, it is placed in a "public" computer file for immediate access by atmospheric scientists in the U.S. and abroad.

Neither Christy nor Spencer receives any research support or funding from oil, coal or industrial companies or organizations, or from any private or special interest groups. All of their climate research funding comes from federal and state grants or contracts.
End of UAH release

http://www.reportingclimatescience.c...on-record.html

REPUBLICAN, CONGRESSMEN RECOGNIZE CLIMATE CHANGE

80 degrees at Reagan National Airport sets D.C. record for Nov. 6

By Martin Weil November 6 at 10:33 PM

When it comes to weather, most days resemble some other day, often the day before or the day after. Friday, however, broke the mold with warmth so uncommon for November that it set records at all three of the region’s airports.

The 80 degrees reached at Reagan National Airport, where Washington’s measuring station is sited, was two above the city’s old record for a Nov. 6.

It was the first time the temperature touched 80 since Sept. 29. The last time 80 was the normal high was Sept. 16.

It could be a while before the next 80-degree day. That reading will not be the daily norm here until autumn ends, winter runs its course, and spring is well underway.

The date is May 31.

So Friday was a rarity and a considerable thermal achievement. In all of the Novembers since the keeping of temperature records for Washington began 144 years ago, 80 degrees has been observed only 22 times, and Friday was one of them.

https://www.washingtonpost.com/local...omepage%2Fcard