The following is a list of weather events that occurred in 2018.

Summary by weather type

Winter storms and cold waves A cold wave from late December 2017 persists into early January 2018. Between both years, 39 people die.Storm Events Database, NOAAStorm Events Database, NOAAStorm Events Database, NOAA Several records due to the cold are broken as a result, and the January 2018 North American blizzard is fueled. The blizzard results in 22 deaths. There is also $1.1 billion in damages. The storm was dubbed a historic bomb cyclone. Following a tranquil February, winter weather resumes in March. The March 1–3, 2018 nor'easter was the most destructive of those. Over 1.9 million people lose power,`with 9 dead and $2.25 billion in damage. another nor'easter a few days later causes 2 deaths and $525 million in damage. A final nor'easter rode up the East Coast two weeks later. It caused a tornado outbreak. This included an EF3 tornado that destroyed Jacksonville State University in Alabama.Jacksonville State reflects 6 months after EF-3 tornado hit campus, WBRC, September 19, 2018 It also caused near-record spring snowfall along the Northeastern United States. Then, in April, a cold wave caused Iowa and Wisconsin to have their coldest April on record. In mid-November, a winter storm across the United States caused 11 deaths,Winter Storm Avery Causes Chaotic Commutes, Strands Students at School Overnight, Kills 11 on Slick Roads, The Weather Channel, February 13, 2019 one of the worst traffic jams in New York City,COMMUTE FROM HELL: Snowstorm Cripples NYC Area With 10-Hour Traffic Nightmare, Huffington Post, November 16, 2018 and 555 car crashes in New Jersey.555 crashes, impassable roads turn evening rush into snowlocked mush as season's first storm smacks N.J., Nj.com, November 15, 2018 A few weeks later, another blizzard kills 4 more people. After that, another winter storm caused 3 more deaths in North Carolina.

Floods

In late February 2018, the Ohio River had its highest crest since 1997.Cincinnati flood of 2018: How does it compare?, WLWT, February 26, 2018 Six people died in the flooding.USA – 6 Dead as Flooding in Central and Southern States Worsens, FloodList, February 26, 2018 In late April and early May, one of the worst floods in New Brunswick history in Canada caused rivers to rise at record-breaking levels. A combination of heavy rainfall, melting snow, and very warm temperatures caused historic flooding over the St. John River, with the water level reaching near Fredericton. 50 roads were affected by the floods, including a stretch of Canada Route 105 between Fredericton and Youngs Cove. On April 29, water levels began to stabilize, but remained high at about near the Fredericton area.

Droughts, heat waves, and wildfires

In early February, 39.6% of the contiguous United States had drought coverage, with the worst of it being in the Southern Plains, southern Rockies and the Four Corners region. In South America, a severe lack of rainfall led to the worst drought over parts of Argentina and Uruguay, with US$3.9 billion in damage, making it the most expensive disaster in Argentina and Uruguay history. In Uruguay, the lack of rainfall led to the worst drought conditions in the nation since 2008-2009. 90 percent of German land suffered severe drought conditions, which combined with record heat between April and August, causing forest fires and crop failures. The Camp Fire in November caused 85 deaths, destroyed more than 18,000 structures, and burned of land, making it the deadliest fire in California history.

Tornadoes

2018 was relatively quiet in terms of tornadoes, and for the first time in history, no EF4 or EF5 tornadoes touched down in the United States. However, the state of Connecticut saw a record number of tornadoes.Connecticut Sets New Tornado Record in a Year With Below-Average U.S. Tornadoes, The Weather Channel, October 31, 2018 The first major tornado outbreak of 2018 came on February 24. This tornado outbreak caused two deaths and 20 injuries from 30 tornadoes. This became the first tornado related death in the United States in 284 days, ending a record long streak. A few days later, a tornado outbreak strikes the United States from March 20 to 22nd. An EF3 tornado struck Jacksonville State University, causing $42 millionTORNADO JACKSONVILLE AL TODAY, Guadeloupe Gobinero Municipal and forcing 9,000 people to go without power.Tornado strikes college as storm leaves trail of damage across South, The Morning Call, March 20, 2018 A month later, another tornado outbreak affects the United States in mid-April. An EF1 tornado in April in Louisiana caused one death. An EF2 tornado in North Carolina also caused a fatality, but an indirect one. A month later, another tornado outbreak produces an EF0 tornado in Newburgh, New York that results in a death. The storm itself causes 5 more deaths as a result of straight-line winds. Before that, on May 14, the storm also produced tornadoes across Kansas.

On June 12, an F4 tornado touches down in Brazil, killing two. On July 10, another fatal EF2 touched down in Minot, North Dakota. One newborn baby is killed and 28 others are injured. Nine days later, destructive tornadoes tore across Iowa, causing $320 million in damage, and 37 injuries.EF3 tornado on Jul. 19, 2018 15:01 PM CDT, DailyRecordEF3 tornado on Jul. 19, 2018 15:24 PM CDT, DailyRecord It also fuels the Table Rock Lake duck boat accident, which kills 17 and injures 7 in Missouri. On August 3, an EF4 touched down in Manitoba, becoming North America's only violent tornado of the year, and killing one person. The remnants of Hurricane Florence spawned a fatal tornado in Virginia. The tornado outbreak as a whole spawned 37 other tornadoes. Just a few days later, the 2018 United States–Canada tornado outbreak causes damage in the Midwestern United States and especially in Ontario and Quebec. Before crossing into Canada, Minnesota had its third most prolific tornado day on record. 300,000 customers in the Ottawa area lost power. The tornadoes cause $295 million in damage and injure 31.Ottawa-Gatineau tornadoes cause nearly $300 million in insured damage, insurancebusinessmag.com, October 23, 2018

In late October and early November, another tornado outbreak occurs, spawning 61 tornadoes. There is one indirect death due to an EF1 in Mississippi, and two direct deaths due to an EF1 tornado in Maryland. Just a few days later, another fatal tornado touches down in Tennessee. A tornado outbreak then started at the end of the month and continued into December, which spawned 49 tornadoes, including an EF3 in Illinois that injured 22. Another tornado death occurs due to an EF1 in Missouri. Two weeks later, the 2018 Port Orchard tornado touches down in Port Orchard, Washington. The tornado caused $1.81 million in damage. Finally, on December 31, a child dies in a tornado in Indonesia.

Tropical cyclones

As the year began, a tropical depression was moving across the Philippines, and Cyclone Ava was developing northeast of Madagascar. Ava caused at least 51 deaths and US$195 million in damage, and was followed by 13 additional tropical cyclones in the south-west Indian Ocean.australiasevereweather.com/cyclones/2019/summ2018-2019.htm In the Australian region, there were 27 tropical cyclones, including Cyclone Marcus, a powerful cyclone that caused US$75 million in damage in Western Australia. In the South Pacific Ocean, there were 15 tropical cyclones during the year, including Cyclone Gita, the most intense tropical cyclone to impact Tonga since reliable records began.

In the northern hemisphere, the western Pacific Ocean was active, with 44 tropical cyclones. The strongest typhoons were Kong-rey and Yutu, which both had 10 minute sustained winds of 215 km/h (130 mph) and a minimum pressure of . In October, Yutu struck Tinian in the Northern Marianas Islands at peak intensity, making it the strongest storm on record to hit the island chain. When Typhoon Jebi struck Japan in September, insured damage totaled around US$15 billion, making it the country's costliest ever typhoon. In July, Tropical Storm Son-Tinh killed more than 200 people when it moved through the Philippines, China, and Vietnam, mostly related to a dam collapse in Laos. In December, Tropical Depression Usman moved through the Philippines, killing 156 people and leaving ₱5.41 billion (US$103 million) in damage. In the north Indian Ocean, there were 14 tropical cyclones, several of which affected land. In May, Cyclone Sagar killed 79 people when it struck Somaliland in the Horn of Africa. Cyclone Mekunu caused US$1.5 billion in damage and 31 deaths when it struck Oman. Cyclone Titli killed 85 people when it struck southeastern India in October.

The north-east Pacific Ocean was active, with three Category 5 hurricanes on the Saffir-Simpson scale – Lane, Walaka, and Willa. Lane in August was the wettest on record in Hawaii, with peak rainfall accumulations of 58 inches (1,473 mm) causing US$250 million in damage. In October, Walaka affected the Northwestern Hawaiian Islands, and Willa struck southwestern Mexico, causing nine deaths and US$825 million in damage. The Atlantic Ocean featured 16 tropical cyclones, including Hurricane Michael in October, one of only four Category 5 hurricanes to hit the United States at that intensity. Michael struck the Florida panhandle and caused US$25.5 billion in damage as well as 74 deaths. In September, Hurricane Florence caused widespread flooding after setting state precipitation records in North and South Carolina, resulting in US$24 billion in damage and 52 fatalities.

In addition to the officially tracked storms, there was a Mediterranean tropical-like cyclone named Cyclone Zorbas, which struck Greece.

Timeline This is a timeline of weather events during 2018. Please note that entries might cross between months, however, all entries are listed by the month it started, except for the December 2017–January 2018 North American cold wave, which was ongoing when 2018 began.

January December 23, 2017 – January 19, 2018 – A cold wave caused damaging low temperatures across eastern North America. The cold wave also caused Tallahassee, Florida to receive trace amounts of frozen precipitation for the first time in more than 30 years. December 29, 2017 – January 4, 2018 – Tropical Storm Bolaven forms east of Palau. The storm struck the southern portion of the Philippines, where it killed 4 people in total and left ₱554.7 million (US$ million) of damage, before dissipating off the South Central Coast of Vietnam. January 2–6 – A cyclonic blizzard across North America killed 22 people, caused at least 300,000 power outages, and caused $1.1 billion (2018 USD) in damage across Cuba, The Bahamas, Bermuda, the Southeastern United States, the Northeastern United States, New England, and Atlantic Canada. The storm received various unofficial names, such as Winter Storm Grayson, Blizzard of 2018 and Storm Brody. The storm was also dubbed a "historic bomb cyclone". January 8- A severe cold wave hit Bangladesh and Bangladesh register lowest ever recorded temperature in independent Bangladesh history in tetulia upzila in panchagarh district in Rangpur Division a temperature about 2.60°C on 8:38 am in local time. January 9 – A series of mudflows in Southern California killed 23 people, injured 163 others, and caused $207 million (2018 USD) in damage. January 11–24 – Cyclone Berguitta kills two people with one missing and caused over US$107 million in damage across Mauritius and Réunion. January 14–16 – Tropical Depression 04 kills 11 people and caused $5.1 million (2018 USD) in damage across Madagascar and Mozambique. January 28–30 - Cyclone Fehi caused extensive damage as an extratropical cyclone in Western New Zealand. Insurance loss were amounted at NZ$38.5 million (US$28.5 million).

February