The following is a list of weather events that occurred in 2017.
Summary by weather type
Winter storms and cold waves
Winter weather in 2017 kicked off with a winter storm from January 4-8. This winter storm causes six fatalities. Around a week later, an ice storm causes 9 fatalities. Portland, Oregon saw the most snow in a single day in 20 years. Around a week after that, a nor'easter from the Tornado outbreak of January 21-23, 2017 caused a death in Philadelphia, It also resulted in 100 accidents in Quebec. After a lull in activity, winter weather resumed on February 9, which caused a man to die in Manhattan. New York City had record warmth the day before. Then, another winter storm rode up the East Coast a few days later, killing two. Six thousand power outages occur in Nova Scotia. A month later, a giant blizzard rode up the East Coast. At least 16 people were killed. A record no-snow streak in Chicago was ended. Another winter storm affected the Rocky Mountains in late April. Pueblo, Colorado saw 9200 power outages as a result, and portions of Interstate 70 in Kansas shut down. While mostly rain, a significant storm complex affected the Northeastern United States in late October. It caused over $100 million in damage, and 1.3 million power outages. Maine set a record number of power outages. However, the mountains of West Virginia record up to 8.4 inches (21 cm) of snow. In early December, a winter storm results in 3 deaths and 400,000 power outages. The year ends with a record breaking cold wave. Flint, Michigan set a monthly record low.
Floods During January-February California, USA suffered from flooding, landslides and the Oroville Dam spillway that led to the evacuation of 188,000 people. During January-April the coastal El Niño caused severe floods in Peru. Hundreds of thousands were affected as well as severe infrastructure damage. During March-April Queensland and New South Wales in Australia experienced heavy rain and Cyclone Debbi causing large scale floodings, population evacuation and agricultural losses. From April to May Québec and Ontario, Canada had a record spring rainfall and snow melting causing large scale floodings with thousands evacuated. In April-May record rainfall cause major floodings across Missouri and Arkansas in the US causing more than US$2 billion in damages. During June-September South Asia experienced major floodings affecting millions and causing severe damage in India, Nepal and Bangladesh following extensive Monsoon rains. In June and July Southern and central China experienced intense and heavy rains causing widespread floodings, severe infrastructure damage and affecting millions of people and the economy. July-September saw seasonal rainfall in West Africa causing widespread floods affecting Niger, Nigeria, Sierra Leone and other countries. In August 2017 Hurricane Harvey hit Texas and Louisiana in the United States, causing large scale floodings. Hurricane Irma hit the Caribbean and southeastern United States in September, causing large scale floodings. In September Hurricane Maria hit Puerto Rico and Dominica causing catastrophic floodings which caused extensive long time infrastructure damages. In October Vietnam experienced continues tropical rainstorms causing extensive floodings with hundreds dead and large scale agricultural and infrastructure damages.
Droughts, heat waves, and wildfires
Tornadoes
The year started with an intense tornado outbreak that became the 2nd largest and 2nd deadliest for January. The 81 tornadoes resulted in 20 deaths. An EF3 tornado in Mississippi caused 4 deaths, 57 injuries and $9.46 million in damage. The next day, an EF3 tornado in Georgia causes 11 deaths, 45 injuries and $2.5 million in damage. Another EF3 tornado in Georgia caused 5 deaths, 40 injuries and $310 million in damage. Total damage was $1.3 billion in damages. Two weeks later, an EF3 tornado strikes New Orleans, causing 33 injuries, including 5-6 serious. It caused at least $2.7 million in damage. It was part of a small outbreak of 15 tornadoes that day. Total economic losses were estimated at $175 million. Another intense outbreak occurs in late February and early March. This included an EF4 tornado in Missouri and Illinois, causing 1 death, 12 injuries and $14.8 million in damage. Another EF3 in Illinois and Indiana causes 1 death, 2 injuries and $5.7 million in damage. As another tornado that day killed two in Illinois, the total death toll was four. Total damage is $1.3 billion. A week later, another tornado outbreak affected the Central United States. Nineteen people were injured, Damage totaled $2.5 billion. More tornadoes affect the US on April 2 and 3. The 59 tornadoes from the system cause 3 deaths. Less than a week later, two die due to a tornado in Paraguay. Another tornado outbreak affected the United States in late April and early May. The storm system resulted in $1.9 billion, and caused 20 total deaths. Five of those deaths are tornadic. Two fatal tornadoes strike Canton, Texas which cause a combined 4 fatalities, 49 injuries and $1.87 million. A tornado outbreak sequence in mid to late May results in 2 deaths, 39 injuries and $975 million. Significant tornadic activity slowed down after this. On August 6, a small outbreak of tornadoes occurred near Tulsa, Oklahoma. The tornadoes cause 30 injuries, all due to an EF2 in Tulsa, and $50.24 million, of which $50 million is due to the EF2 in Tulsa. Five days later, more tornadoes occur in China. The tornadoes cause 5 deaths and 58 injuries.
Tropical cyclones
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