July 2014 Global Weather Extremes Summary

By: Christopher C. Burt , 8:58 PM GMT on August 19, 2014

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July 2014 Global Weather Extremes Summary

July was the 4th warmest such since 1880 according to NOAA and the 11th warmest according to NASA data (the difference in assessments is due to several factors which I’ll discuss in a future blog). It was unusually cool in the central portion of the U.S. while record warmth was observed in parts of the U.S. Northwest, Scandinavia and the Baltic nations. Several powerful typhoons made landfall in East Asia and Hurricane Arthur took a swipe at North Carolina.

Below are some of the month’s highlights.

NORTH AMERICA

It was the coldest July on record (average monthly temperature) for portions of the central U.S. including the states of Indiana and Arkansas. Indianapolis averaged 70.1°F (21.2°C), besting July 1947 (which averaged 70.6°F/21.4°C) for coldest such on record. In contrast it was one of the warmest July’s on record in the Pacific Northwest. Medford, Oregon experienced its single hottest month (any month) with an average temperature of 79.9°F (26.6°C) beating out July 2003’s average of 78.9°F (26.1°C). Spokane, Washington came close to its all-time warmest month with a 75.7°F (24.3°C) average, just shy of the 75.9°F (24.4°C) record set in July 1906. Because of the extreme difference in average monthly temperatures between the East and the West, the overall national average was close to normal (73.3°F/22.9°C which was just 0.3°F below the long-term normal). Precipitation was generally below average nationwide (ranking 26th driest July since 1895).





State-by-state temperature rankings (top map) and precipitation rankings (bottom map) for July 2014. Maps from NCDC.

The first Atlantic hurricane of the season, Arthur, made landfall as a CAT 2 storm in North Carolina over the Fourth of July weekend. It was the earliest hurricane on record to make landfall in N.C. but did little damage.

An EF-2 tornado struck Madison County, New York on July 8th killing 4. It tied as the 2nd deadliest tornado in state history (a tornado on November 16, 1989 killed nine and another one on August 28, 1973 also resulted in four fatalities).



A home in Madison County, New York where two died following a direct strike by an EF-2 tornado on July 8th. Photographer not identified, image from Syracuse.com

It was an active month in the Southwest with monsoonal moisture pushing into southern California, Arizona, New Mexico, and Colorado causing localized flash flooding. Welcome rainfall in New Mexico resulted in Albuquerque enjoying its 4th wettest July on record (since 1895) with a 3.49” (89 mm) monthly total, this following years of drought. In contrast, dry and hot weather in the Pacific Northwest resulted in the largest wild fire in Washington State history when lightning on July 14th sparked a conflagration that consumed over 256,000 acres (more about this may be found in my previous blog.)

It was the warmest July on record for Canada’s Newfoundland Province.

The coldest temperature measured in the northern hemisphere during the month was -23.9°C (-11.0°F) at Summit GEO site in Greenland on July 19th.

SOUTH AMERICA and CENTRAL AMERICA

It was a very hot month in northern Colombia where the temperature peaked at 41.4°C (106.5°F) in both the Cesar and Guajira Departments (the latter an all-time record for the department). These figures were just 1.2°C (2.2°F) short of Colombia’s national record high of 42.6°C (108.7°F) set at Chiriguana on February 16, 1998.

The warmest temperature observed in the southern hemisphere during this past July was 37.8°C (100.0°F) at Conceicao do Araguaia, Brazil on July 27th.

EUROPE

The big weather story for Europe during July was the record heat in parts of Scandinavia and other parts of the continent. It was the warmest month on record for Norway and Latvia, tied for 2nd warmest month in Denmark, 8th warmest for the U.K., and 9th warmest for Germany. Temperatures in Norway’s Nordland peaked at 34.4°C (93.9°F) on July 8th at Hjelntes, the highest temperature ever measured in this northern region of the country.

Precipitation varied wildly with floods in the Balkans, Romania, and northern Italy where Milan saw its wettest July on record with a 320 mm (12.60”) accumulation. In contrast it was the driest July on record in Moscow where only 4 mm (0.16”) was measured. The flooding in Romania resulted in at least two fatalities when the Gilort River overflowed the last week of the month. Two also died in Bulgaria as a result of flooding in the district of Gabrovo.



Flood waters rise to the banks of the Olt River in Ramnicu Valcea, Romania on July 28th. Photo tweeted by @gabberc

As just mentioned it was the 8th warmest (actually tied for such) July on record in the U.K. (and also the 8th consecutive month of above average temperatures). Precipitation was 82% of normal for the month. The warmest temperature observed in the nation was 32.3°C (90.1°F) at Gravesend, Kent on July 18th and the minimum 1.2°C (34.2°F) at Braemar, Aberdeenshire on July 6th. The greatest 24-hour precipitation measurement was 51.2 mm (2.02”) at Santon Downham, Suffolk on July 27-28.

AFRICA

More near record cold temperatures were measured at Buffelsfontein, South Africa this past July (as was the case in June) where a reading of -19.3°C (-2.7°F) was measured on July 6th and 7th (close to the national record set at the same location just last summer: -20.1°C/-4.2°F on August 23, 2013).

Ouargla, Algeria saw the temperature rise to 49.6°C (121.3°F) on July 26th, just 1.0°C (1.8°F) from matching its all-time record (P.S. on August 2nd it reached 50.4°C/122.7°F).

ASIA

The hottest temperature measured in the world in July was 53.0°C (127.4°F) at Gotvand, Iran on July 17th. This tied Iran’s all-time national heat record last set on July 28, 2011 at Dehloran. Another notable all-time heat record was the 37.3°C (99.1°F) observed in Kuching, Malaysia (Sarawak on the island of Borneo) on July 26th. In Hong Kong it was the hottest July on record (since such began in 1884) with a 29.8°C (85.6°F) monthly mean.

Heavy rains the last week of July in western India resulted in a landslide in Malin, Maharashtra State killing at least 134 (and perhaps as many as 200) villagers.

A series of powerful typhoons developed in the Eastern Pacific and made landfall in China and Japan. Typhoon Rasmussen (or Rammasun) struck Hainan Island, China on July 18th with sustained winds of 155 mph and the lowest barometric pressure ever observed at a land site in China (899.2 mb/26.55”). The Super Typhoon killed 206 and caused $6.5 billion in damage in China and the Philippines. See Jeff Masters' blog posted August 18th for more details.



Typhoon Rammasun (named Glenda in the Philippines) slammed into the town of Imus southwest of Manila on July 16th with hurricane-force winds as can be seen in this image as the typhoon made landfall. Photo by Erik De Castro.

AUSTRALIA

Overall, temperatures were close to normal and precipitation below normal in Australia during July.





Temperature (top map) and precipitation (bottom map) deciles for Australia during July. Maps courtesy of the Australian Bureau of Meteorology.

The warmest temperature observed during July was 33.3°C (91.9°F) at Jabiru Airport and Mango Farm, Northern Territory on July 10th and the coldest -11.3°C (11.7°F) at Glen Innes Airport, New South Wales on July 12th. The greatest calendar day precipitation measured was 215 mm (8.46”) at Cape Leveque, Western Australia on July 13th. Brisbane, Queensland saw a low of 2.6°C (36.7°F) on the July 12th, its coldest temperature observed since 1911. Amberley, part of the city’s metro area, dropped to -2.7°C (27.1°F). Needless to say, temperatures this low at low elevations of Queensland are very rare.

NEW ZEALAND and OCEANIA

Kaikohe, Northland on the North Island recorded its wettest July on record with 586 mm (23.07”) of precipitation (311% of normal). Its greatest calendar rainfall was 159.4 mm (6.28”) on July 8th, which also the greatest daily amount anywhere in New Zealand for the month. The warmest temperature observed was 22.7°C (72.9°F) at Timaru, South Island on July 31st and the coldest -9.8°C (14.4°F) at Lake Tekap, South Island on July 16th.

ANTARCTICA

The coldest temperature in the southern hemisphere and the world during July was –80.4°C (-112.7°F) recorded at Concordia on July 10th.

KUDOS Thanks to Maximiliano Herrera for global temperature extremes data and Jeremy Budd and NIWA for New Zealand data.


Christopher C. Burt
Weather Historian

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13. WunderAlertBot (Admin)
7:46 PM GMT on August 22, 2014
weatherhistorian has created a new entry.
12. ColoradoBob1
6:58 PM GMT on August 22, 2014


Indiana sees floods after up to 10 inches of rain

The weather service said seven to 10 inches of rain had fallen in eastern Grant and Blackford counties, with up to seven inches falling since midnight.

Link



CHICAGO (STMW) – Heavy rains have caused major flooding across much of the Chicago area overnight, especially near Midway International Airport, and in suburbs just south of Midway. At least one southwest suburban school district was forced to cancel classes at all its schools.

According to the National Weather Service, 4.5 inches fell at Midway between midnight and 6 a.m.; with most of that rain — 3.6 inches — falling in a 40 minute span starting shortly after 2 a.m.


Link

Member Since: August 13, 2010 Posts: 0 Comments: 3183
11. ColoradoBob1
4:31 AM GMT on August 22, 2014
The Japan Meteorological Agency recorded 217.5 millimeters, or more than eight inches, of rain in three hours in Hiroshima city’s Asakita Ward, the largest amount of rainfall seen in the area since records began in 1976. The region experienced floods and mudslides of a similar scale in 1999 that killed 31 people.

Link
Member Since: August 13, 2010 Posts: 0 Comments: 3183
10. ColoradoBob1
5:39 PM GMT on August 21, 2014


Landslides hit Japan’s Hiroshima, killing at least 36

About 240 mm (9 inches) of rain fell in the area in the 24 hours up to Wednesday morning, a record-breaking level equivalent to a month’s worth of rain in a usual August, the Meteorological Agency said. Roughly half of that rain fell in one hour on Wednesday.

Link
Member Since: August 13, 2010 Posts: 0 Comments: 3183
9. Jerry1x1
2:48 PM GMT on August 21, 2014
Didn't know where to post this, so here it is.

The Antarctic weather/temperature prediction /recording system has problems.

For instance, Vostok, Antarctica on 8/21/2014 shows a high temperature of -112 F. The site shows a low temperature of -81 F. Yesterdays high was "--" and low was "1830 F".

There appears to be several calculation errors.

In addition, the prediction system has been consistently high by 20 to 30 degrees for months.

Dr. Lurtz
Member Since: August 21, 2014 Posts: 0 Comments: 0
8. maxcrc
5:24 PM GMT on August 20, 2014
Also note on 13 July Hihifo Airport on Wallis Island (territory of Wallis and Futuna) recorded 18.0C a new all time record low for the territory of Wallis and Futuna. This is the first time since 25 July 2008 that a national or territorial record of absolute lowest temperature is recorded outside Africa.
That day Niue (New Zealand territory) recorded 10.6C at the Hanan Airport a new record low for all Niue.
Member Since: February 9, 2011 Posts: 0 Comments: 186
7. maxcrc
5:24 PM GMT on August 20, 2014
duplicated
Member Since: February 9, 2011 Posts: 0 Comments: 186
6. maxcrc
5:21 PM GMT on August 20, 2014
Quoting 4. ChateauChalon:

The 50.4 °C reached in Ouargla on August the 2nd is the actual record, so on July 26 th the temperature was 0.8 K shy of the record. However, the record for In Salah, also in Algeria, is 50.6 °C.


I don t agree. Ouargla record in July was still 49.7C, so that day Ourgla missed its (than) record by 1 decimal. July global weather extreme summary. Period.
Than, in August we had another heat wave and the former record was beaten, but at that time of the July story the former record was missed by 0.1C. We can t say was missed by0.8C because the 50.4C happened later (August 2nd).
50.4C is the third highest temperature ever recorded in Africa, except the "jokes" of Azizia, Kebili, etc etc overestimated by as much as 10C (16F) .
Member Since: February 9, 2011 Posts: 0 Comments: 186
5. barbamz
1:55 PM GMT on August 20, 2014
Tuscany hit by worst rain in a century
The Local (Italy), Published: 18 Aug 2014 10:33 GMT+02:00
Tuscany was hit by the worst rain in almost a century last month, with summer temperatures also falling below average, new figures show.
Rainfall hit rates not seen since 1916 in a number of places in Tuscany, the region’s hydrological service (SIR) said.
An average of 170mm of rain fell during July, “an exceptional event” according to SIR.
The worst affected areas were Versilia, close to Lucca, and the Serchio river basin. Both places saw 450mm [17,7 inches) of rain in July, with Serchio registering rainy days for half the month.
Temperatures fell across the region to 21.1C, more than two degrees cooler than the 1981-2010 average of 23C.
Tuscany is not the only Italian region to have suffered from a bout of bad weather during July.
Last month part of Milan’s metro was closed, while streets were transformed into flowing streams, when the river Seveso burst its banks after heavy rain. More recently four people died when a flash flood hit a festival close to Venice.
The rain has also put a damper on Italians’ holiday plans. An August poll found that 16 percent of Italians had cancelled their holidays because of bad weather, while the number of beachgoers in July fell by 30 percent on last year.
Member Since: October 25, 2008 Posts: 63 Comments: 6716
4. ChateauChalon
10:59 AM GMT on August 20, 2014
The 50.4 °C reached in Ouargla on August the 2nd is the actual record, so on July 26 th the temperature was 0.8 K shy of the record. However, the record for In Salah, also in Algeria, is 50.6 °C.
Member Since: July 19, 2013 Posts: 0 Comments: 36
3. barbamz
10:05 AM GMT on August 20, 2014
Thanks a lot, very interesting and detailed overview for a month full of amazing weather events.

But: Naming Asian typhoon Rammasun (means "God of thunder" in Thailand) also as typhoon Rasmussen (a common surname in Skandinavia with the meaning: son of Rasmus) looks like a confusion which has happened in some places of the internet.
Member Since: October 25, 2008 Posts: 63 Comments: 6716
2. Daisyworld
5:49 AM GMT on August 20, 2014
Thanks for the monthly round-up, Chris. Always an excellent read.
Member Since: January 11, 2012 Posts: 6 Comments: 880
1. George1938
10:26 PM GMT on August 19, 2014
i would not have driven over that bridge haha love this :)
Member Since: August 18, 2014 Posts: 24 Comments: 11

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About weatherhistorian

Christopher C. Burt is the author of 'Extreme Weather; A Guide and Record Book'. He studied meteorology at the Univ. of Wisconsin-Madison.