2019: Second Warmest Year on Record for Planet Earth

Its official, 2019 was the second warmest year ever recorded on this planet. Only 2016 was warmer.

According to a report by NOAA’s National Centers for Environmental Information, Earth’s combined average temperature for the year – over both land and sea surfaces – was 1.71°F above the 20th-century average.

2019 also marked the 43rd consecutive year with a global temperature above its long-term norm. That means every year since 1977 has posted a warmer than average annual temperature.

Looking at the map below, it is clear to see that heat dominated most of the planet last year. The only continent that did not post an annual temperature among its top three highest was North America. It ranked fourteenth. The state of Alaska, however, experienced its warmest year on record.

The exceptional warmth of 2019 is largely attributed to the long-term trend of human-caused climate change. While a weak El Niño was present at the beginning of the year, it dissipated by July with ENSO neutral conditions prevailing afterward.

Credit: NOAA

Looking at the bigger picture, the five warmest years on record have occurred since 2015, and nine of the ten warmest have taken place since 2005. The only year from the last century included on the top ten list is 1998, which ranks tenth.

As greenhouse gases – the main driver of global warming – continue to spew into the atmosphere, temperatures will continue to rise and records will likely continue to fall.

Global temperature records date back to 1880.

2019 was Earth’s second warmest year on record. Credit: NOAA

Early Spring Preview Brings Record Warmth to NYC

The calendar says January, but it felt more like early May in New York City this weekend.

In Central Park, the temperature soared to 69°F on Saturday and hit 68°F on Sunday, setting new record highs for both dates. According to the NWS, the previous records of 63°F for January 11 and 66°F for January 12 were set in 1975 and 2017, respectively.

It is also interesting to note that the overnight low temperatures for both dates (51°F and 43°F) were warmer than the normal high. The average high for the city in mid-January is 38°F and the average low is 27.

The primary driver of this unseasonable warmth was a large ridge in the jet stream. Sitting over the eastern part of the US, it allowed warm air from the south to flow further north than it normally would at this time of the year.

But, as with most things that go up, they must also come back down. The temperature is expected to moderate over the next few days but remain above average. More seasonable temperatures are expected to return by the end of the week. So, don’t put your winter coats away just yet.

Credit: The Weather Gamut

November 2019: Earth’s Second Warmest November on Record

Our global temperature continued its upward trend last month with November 2019 marking the second warmest November ever recorded on this planet. Only November 2015 was warmer. The month also closed out Earth’s second warmest September to November season on record.

According to the State of the Climate Report by NOAA’s National Centers for Environmental Information, Earth’s combined average temperature for November – over both land and sea surfaces – was 56.86°F, which is 1.66°F above the 20th-century average. This November also marked the 419th consecutive month with a global temperature above its long-term norm. That means the last time any month posted a below-average reading was December 1984.

The three-month period of September, October, and November – meteorological autumn in the northern hemisphere – was also unusually warm. NOAA reports that Earth’s average temperature for the season was 1.69°F above the 20th century average of 57.1°F. That makes it the second warmest such period on record. It is also important to note that the ten warmest September-November periods have all occurred since 2005, with the five warmest taking place in the last five years.

While heat dominated most of the planet this November, some places were particularly warm, including Central Europe, eastern Russia, northern Canada, and most of Alaska. For the contiguous US as a whole, November 2019 ranked in the middle third of the historical record.

These soaring temperatures are largely attributed to the long-term trend of human-caused climate change. As greenhouse gases continue to spew into the atmosphere, global temperatures are expected to continue to rise.

Year to date, the first eleven months of 2019 were the second warmest such period of any year on record. At this point, it is very likely that 2019 will finish as the second or third warmest year ever recorded. Global temperature records date back to 1880.

Credit: NOAA

Active 2019 Atlantic Hurricane Season Comes to a Close

The 2019 Atlantic Hurricane Season officially ended on Saturday.  It marked the fourth year in a row with above-average activity.

According to NOAA, there were eighteen named storms this season. Of these, six developed into hurricanes and three were major hurricanes with ratings of category 3 or higher on the Saffir-Simpson Scale. It also posted an Accumulated Cyclone Energy (ACE) index of 129.8 An average season produces twelve named storms, six hurricanes, three major hurricanes, and an ACE of 106.

Officially running from June 1 to November 30, the season got off to an early start with Subtropical Storm Andrea forming in May. This was the fifth consecutive year to see a pre-season storm develop. The biggest names of the season, however, were Dorian and Lorenzo.

In September, Hurricane Dorian made landfall in the Bahamas as a category-5 storm with winds measured up to 185mph and a minimum pressure of 910 millibars.  It was the strongest storm on record to hit the island nation, claiming the lives of at least 60 people and leaving several billion dollars worth of damage in its wake.

Dorian also marked 2019 as the fourth year in a row to see a category-5 storm develop in the Atlantic basin, a new record.

Out at sea, Hurricane Lorenzo became the second category-5 storm of the season. It was also the easternmost Category-5 storm in the Atlantic on record. As for a possible connection to climate change, it is interesting to note that twenty-eight category-5 storms have developed in the Atlantic since 1950 with fourteen of them occurring since 2003.

For the contiguous United States this season, Tropical Storm Imelda caused the most damage. Moving slowly across Texas and Louisiana, it dumped between 30 and 44 inches of rain on the area over the course of three days. It unleashed catastrophic flooding throughout the region and became the fifth wettest tropical cyclone on record in the continental US.

This active hurricane season, according to NOAA, was largely the result of above-average sea surface temperatures in the Atlantic, a stronger than normal West African monsoon, and ENSO neutral conditions in the Pacific. In other words, the combination of warm water to fuel storms and reduced wind shear across the Gulf of Mexico allowed for unhindered tropical development in the Atlantic basin.

Credit: NOAA

October 2019: Earth’s Second Warmest October on Record

Our global temperature continued its upward trend last month with October 2019 marking the second warmest October ever recorded on this planet. Only October 2015 was warmer.

According to NOAA’s National Centers for Environmental Information, Earth’s combined average temperature for the month – over both land and sea surfaces – was 58.86°F. That is 1.76°F above the 20th-century average. October also marked the 418th consecutive month with a global temperature above its long-term norm. That means the last time any month posted a below-average reading was December 1984.

Furthermore, the ten warmest Octobers have all occurred since 2003, with the last five Octobers being the five warmest on record.

While heat dominated most of the planet this October, some places were particularly warm, including Alaska, northern Canada, eastern Europe, northern Russia, the Middle East, and western Australia. These soaring temperatures are largely attributed to the long-term trend of human-caused climate change.

For many people in the northern and central parts of the contiguous US, however, this October was unusually cold. To put this disparity into context, consider that the United States constitutes less than 2% of the total surface of the Earth. This detail also highlights the fact that climate change is a complex global phenomenon that involves much more than the short-term weather conditions that are happening in any one part of the world.

Year to date, the first ten months of 2019 were the second warmest such period of any year on record. At this point, it is very likely that 2019 will finish among the top five warmest years on record. Global temperature records date back to 1880.

Credit: NOAA

Arctic Blast Brings Record Cold Temperatures to NYC

The calendar says November, but it felt more like January in New York City on Wednesday as a blast of frigid arctic air plunged into the region.

In Central Park, the temperature dropped to 25°F late Tuesday night and hit 23°F early Wednesday morning, setting new record lows for both dates. According to the NWS, the previous records of 26°F for November 12 and 24°F for November 13 were set in 1926 and 1986, respectively.

The high temperature on Wednesday only reached 34°F, which is 8°F colder than the normal low for this time of year. The average high for the city in mid-November is 55°F.

Produced by a deep dip in the jet stream, these unusually cold conditions are expected to hang around for a while. Temperatures are forecast to moderate slightly but still remain below average as we move into next week. Keep those hats and gloves handy!

Credit: The Weather Gamut

September 2019: Earth’s Warmest September on Record

Our global temperature continued its upward trend last month. September 2019 tied September 2015 as the warmest September ever recorded on this planet.

According to NOAA’s National Centers for Environmental Information, Earth’s combined average temperature for the month – over both land and sea surfaces – was 60.71°F. That is 1.71°F above the 20th-century average. September also marked the 417th consecutive month with a global temperature above its long-term norm. That means the last time any month posted a below-average reading was December 1984.

Furthermore, the ten warmest Septembers have all occurred since 2005, with the last five years being the five warmest on record.

While heat dominated most of the planet this September, some places were particularly warm, including Alaska, the southeastern United States, and large parts of Asia and Canada. For the contiguous US as a whole, the month tied September 2015 as the second warmest September on record.

With ENSO neutral conditions prevailing in the Pacific, these soaring temperatures are largely attributed to the long-term trend of human-caused climate change. As greenhouse gases continue to spew into the atmosphere, global temperatures are expected to continue to rise.

Year to date, the first nine months of 2019 were the second warmest such period of any year on record. At this point, it is very likely that 2019 will finish among the top five warmest years on record. Global temperature records date back to 1880.

September 2019 was Earth’s warmest September on record. Credit: NOAA

Record Breaking October Heat in NYC

The season officially changed to autumn last week, but it felt more like summer in New York City on Wednesday.

The temperature in Central Park soared to 93°F, setting a new record high for the date. The previous record of 90°F had been in place since 1927. Wednesday also marked the second warmest October day ever recorded in the Big Apple. Only October 5, 1941, was warmer when the temperature hit an unseasonably sultry 94°F.

This type of heat is unusual for NYC in October. In fact, this was only the sixth time temperatures ventured into the 90s during the month since record-keeping began in 1869.

At this point in October, the normal high in the city is 69°F. But with a stubborn ridge of high pressure sitting over the region, warm air is flowing further north than it normally would at this time of year.  It is also important to note that as our climate changes, record warm days are occurring more often and the autumn season as a whole is heating up.

Credit: The Weather Gamut

September 2019: 8th Driest September on Record for NYC

September 2019 felt like a weather roller coaster in New York City. Highs ranged from a balmy 89°F to a chilly 67°F. But, with 18 out of 30 days posting above-average readings, the warmth won out in the end. The city’s mean temperature for the month was 70.4°F, which is 2.4°F above average.

In terms of precipitation, September was a month for the record books. The city only received 0.95 inches of rain in Central Park, marking its eighth driest September on record. It was also the second month in a row to deliver below-average rainfall in NYC. On average, the Big Apple gets 4.28 inches of rain for the month.

Earth Posts 2nd Warmest August and 2nd Warmest June-August Season on Record

Our global temperature continued its upward trend last month. August 2019 marked not only Earth’s second warmest August, but also closed out the planet’s second warmest June-August season on record.

According to the State of the Climate Report by NOAA’s National Centers for Environmental Information, Earth’s combined average temperature for August – over both land and sea surfaces – was 61.76°F, which is 1.66°F above the 20th-century average. This August also marked the 416th consecutive month with a global temperature above its long-term norm. That means the last time any month posted a below average reading was December 1984.

The three-month period of June, July, and August – meteorological summer in the northern hemisphere – was also unusually warm. NOAA reports that Earth’s average temperature for the season was 1.67°F above the 20th century average of 60.1°F. That makes it the second warmest such period on record. It is also important to note that nine of the ten warmest June-August periods have all occurred since 2009.

While heat dominated most of the planet this August, some places were particularly warm, including Europe, Africa, and parts of Hawaii and Alaska. For the contiguous US as a whole, August 2019 tied August 1955 as the 13th warmest on record.

These soaring temperatures are largely attributed to the long-term trend of human-caused climate change. As greenhouse gases continue to spew into the atmosphere, global temperatures are expected to continue to rise.

Year to date, the first eight months of 2019 were the third warmest such period of any year on record. At this point, it is very likely that 2019 will finish among the top five warmest years ever recorded. Global temperature records date back to 1880.

Credit: NOAA