More than 1,200 record high temperatures have been set over the past week across the U.S., and nearly 6,000 record highs have been recorded since the beginning of 2012.
From March 8-14, 2012, the total number of records is 1,226, according to the National Climatic Data Center.
On Wednesday, Mar. 14, 2012 alone, 423 records were set.
This map from NCDC shows the total number of record highs for March 2012 so far. Through March 14, 2012, the total is 1,641 record highs.
From the beginning of the year (Jan. 1-March 12, 2012), there has been a total of 5,618 record highs. In comparison, Jan. 1-March 31, 2011, there were only 2,800 record highs recorded.
"The jet stream has been flung all the way north across central and eastern Canada," AccuWeather.com Expert Senior Meteorologist Alex Sosnowski said, when explaining why warmth has been so widespread this March.
"At least two-thirds of the nation could wind up with above-normal temperatures [this spring]," Paul Pastelok, expert long-range meteorologist and leader of the AccuWeather.com Long-Range Forecasting Team, said late in February. He forecast that there could be the most widespread warmth this spring since 2004.
RELATED: AccuWeather.com Spring 2012 Forecast
Repeating and slow-moving storms will raise the risk of flash flooding and damaging winds over the northern and central High Plains into Thursday night.
Thunderstorms that have already brought the risk of severe weather to a portion of the mid-Atlantic states will continue track into the Northeast through Thursday night.
As July draws to a close, a storm system swinging up from the Deep South will bring downpours to the northeastern U.S. and break the back of an extended heat wave.
Rounds of showers and thunderstorms moving westward off the coast of Africa may pave the way for future tropical systems over the Atlantic Ocean in the weeks ahead.
Highs will run between 10 and 15 degrees Fahrenheit above average across much of the interior western United States into the upcoming weekend.
A budding tropical system threatens to bring flooding rain to the Philippines into this weekend with potential future impacts on China and Taiwan.
Sharon, PA (1999)
70 mph wind gus in a thunderstorm.
Small but intense storm, said to be the worst in about 50 years, hit southern Mississippi (where Camille hit in 1969). U.S. Coast Guard cutter lost with 39 aboard.
New England (1949)
Heat wave in New England; Greenville, RI hit 102 degrees.