A Recap of Weather Events in October 2017 Nov 17, 2017

From NOAA

The globally averaged temperature over land and ocean surfaces for October 2017 tied with 2003 as the fourth highest for the month of October in the NOAA global temperature dataset record, which dates back 138 years to 1880. The year-to-date global temperature was third warmest on record.

This monthly summary, developed by scientists at NOAA’s National Centers for Environmental Information, is part of the suite of climate services NOAA provides to government, business, academia, and the public to support informed decision-making.

October 2017 Temperature

  • The October temperature across global land and ocean surfaces was 1.31°F above the 20th century average of 57.1°F, tying with 2003 as the fourth highest value for October in the 138-year period of record, behind 2015 (highest), 2014 (second highest), and 2016 (third highest). The October 2017 above-average global land and ocean temperature was mainly driven by warmer ocean temperatures. October 2017 marks the 41st consecutive October and the 394th consecutive month with temperatures at least nominally above the 20th century average.
  • The October globally averaged land surface temperature was 1.78°F above the 20th century average of 48.7°F. This value was the 11th highest October land global temperature in the 1880–2017 record.
  • The October globally averaged sea surface temperature was 1.13°F above the 20th century monthly average of 60.6°F. This was the fourth highest global ocean temperature for October in the record, behind 2015 (highest), 2016 (second highest), and 2014 (third highest).

October 2017 Sea Ice and Snow Cover

  • The average Arctic sea ice extent for October was 633,000 square miles (19.6 percent) below the 1981–2010 average, according to analysis by the National Snow and Ice Data Center using data from NOAA and NASA. Sea ice extent was below average throughout much of the Arctic, particularly in the Chukchi, Kara, and Barents Seas. Overall, this was the fifth smallest October extent since records began in 1979.
  • Antarctic sea ice extent during October 2017 was 160,000 square miles (2.2 percent) below the 1981–2010 average, also the fifth smallest October value on record. On October 11 and 12, the Antarctic sea ice extent reached its annual maximum extent at 6.96 million square miles. This was the second smallest Antarctic sea ice extent maximum on record and tied with 2002 as the latest date of occurrence.
  • According to data from NOAA and analyzed by the Rutgers Global Snow Lab, the Northern Hemisphere snow cover extent during October was 1.4 million square miles above the 1981–2010 average. This was the ninth largest October Northern Hemisphere snow cover extent in the 50-year period of record. The North American snow cover extent was the seventh largest on record, while the Eurasian snow cover extent was the 11th largest.

Year-to-Date (January–October 2017)

  • The year-to-date temperature across global land and ocean surfaces was 1.55°F above the 20th century average of 57.4°F. This was the third highest value for January–October in the 1880–2017 record, behind the record year of 2016 and 2015 (second highest). Nine of the ten warmest January–October global land and ocean temperatures occurred since 2005.
  • The year-to-date globally averaged land surface temperature was 2.39°F above the 20th century average of 48.7°F. This was the second highest for January–October in the 138-year record, behind 2016 by 0.32°F.
  • The year-to-date globally averaged sea surface temperature was 1.22°F above the 20th century average of 61.0°F. This was the third highest for January–October in the record, behind 2016 (highest) and 2015 (second highest).

Edited for WeatherNation by Meteorologist Mace Michaels

Leave a comment

Your email address will not be published. Required fields are marked *

Tweets

Not only did Washington DC set a rain record on Tuesday, it got almost all of this rain (2.63") in a single hour.… https://t.co/dXgLwra54r

3 hours ago by WeatherNation

Normally you don't need your umbrella indoors but today, this was not the case. Heavy rainfall struck DC earlier to… https://t.co/IzbpmkPklE

3 hours ago by WeatherNation

Sadly, one firefighter has passed away from the Ferguson Fire in California. The latest: #CAwx https://t.co/SO0SO7k4mk

4 hours ago by WeatherNation

CONFIRMED: Mother Nature is watching the #AllStarGame. #DCwx https://t.co/dTjsvsNynA

5 hours ago by WeatherNation

More severe storms are possible on Wednesday across the heartland. Damaging hail & strong winds will be the main ha… https://t.co/B4LjQji9id

5 hours ago by WeatherNation

Uh oh - storms closing in on Washington, D.C. & #AllStarGame! Storms likely in next few minutes: #DCwx https://t.co/0ANiIihR45

6 hours ago by WeatherNation

SCARY SITUATION! The NYC metro area saw some significant flooding of roadways. This driver was stuck along a floode… https://t.co/KQu6hRlhU2

7 hours ago by WeatherNation

Storms rumbling through the Northeast this evening made for quite the washout for many area roads in major metro ci… https://t.co/7YwFXezCCK

8 hours ago by WeatherNation

Its a soggy commute home for many New Yorkers this evening. Flash flooding threat remains for many cities along the… https://t.co/DxAm4OOg9r

9 hours ago by WeatherNation

Here's a Tuesday update on the #FergusonFire, burning near @YosemiteNPS in #California: https://t.co/yGYWA7y0Hx https://t.co/8VoKlRctSN

10 hours ago by WeatherNation

NEW! Severe T-Storm Watch until 11pm MDT for parts of Colorado, Nebraska, Wyoming and South Dakota. #SDWx #NEwxhttps://t.co/ZX4PHdkc09

10 hours ago by WeatherNation

NEW VIDEO: Cars stranded on the George Washington Parkway near @Reagan_Airport. The area picked up more than 2.5" i… https://t.co/GLI6z1jOdD

11 hours ago by WeatherNation

WATCH: Funnel cloud over New York City earlier today: https://t.co/wmsRtAmRlp https://t.co/WOGkO6Pvzk

11 hours ago by WeatherNation

How about a #beach day?! Perfect weather is on tap for the beaches of West #Michigan. Highs will be in the 70s wi… https://t.co/ziZ2y5yrXJ

13 hours ago by WeatherNation
Follow Us