This year's first leaf and first bloom in the US, mapped

The fall foliage map

Fall's beautiful color changes don't happen all at once, which makes planning that peak fall foliage weekend a bit tricky. Get some confidence with this map which allows you to choose a week from now until November and see which parts of the country...

Snowfall records from every county in the US

Discover the one-day snowfall records of every county in the US in this comprehensive map. Data from the National Oceanic and Atmospheric Administration captures inches of snowfall and the year it fell the most in each county. See the contrasts between the inches of snowfall in warm southern American states and the cooler East Coast.

The science of springtime, 101

Dive into the basics on springtime including the astronomy that brings it about, natural signs of spring's arrival, and some of the cultural approaches to the season.

Visualizing the year in US tornadoes, 2024

Between January and November 2024, over 1,700 tornadoes were documented to have touched down in the US, a relatively high number (and similar to the numbers in 2004, 2008, and 2011). This map shows their location across the country to help capture the number.

The American colonies recognized New Year’s Eve in March until 1752

England followed the Julian calendar, established by Julius Caesar, which had an inaccurate method of calculating leap years. Because of that, New Year’s Day eventually slipped into the spring and was linked with the Christian festival of the Annunciation, which was on March 25. That date carried over to the American colonies, which didn’t change the first day of the new year until 1752, after England adopted the newer Gregorian calendar.

The latest data on US motherhood

Here’s a snapshot of what motherhood looks like in the U.S. today, drawn from government data and Pew Research Center surveys. The list includes seven headline statistics with visual graphs, including the average age of a mother's first childbirth...

Mapping where pumpkins are harvested in the US

Roughly 1.5 billion pounds of pumpkin are sold in the US every year, with 80% of that available in the month of October. See which states are the biggest producers in acres, starting in Illinois where over 16,000 acres of the gourd are harvested...

The expedition documented 240 plant species, 178 new to western science

Lewis and Clark’s botanical records introduced species to Americans like bitterroot, ponderosa pine, and Oregon grape—plants unknown to western science at the time. See a selection of these species in this image gallery.

Rare chance for US states to see Northern Lights

A solar storm in July 2023 offered people in 17 American states, as well as Canada, an unusual chance to witness the Northern Lights, or aurora borealis. The 11-year solar cycle, reaching its peak in 2024, made the lights visible in places further south than usual. Read up on the announcement from the Geophysical Institute at the University of Alaska at Fairbanks here.

A primary source timeline of US history (1600-1968)

Compiled by the Library of Congress, this archive walks through important events in US history through civil rights era, while providing primary sources to explore.

Climate change is disrupting maple syrup by shortening its production season

The number of unusually warm winter days in parts of Maine has increased significantly over the past few decades, stressing maple trees into shifted sap flows and leaving producers with less consistent outputs.

Track the unusual push for mid-decade redistricting across the US

The National Conference of State Legislatures maintains a live tracker showing where mid-decade congressional redistricting is underway, detailing which states are pursuing new maps, the legislative and constitutional methods being used, and how courts are responding as the 2026 elections approach.

What summer was like the year you were born

Summers have generally grown warmer, so chances are the first summer of your life was cooler than the most recent one. Stacker used official average weather data for the months of June through August from the year 1920 to 2022 in this fun data dive.

Visualizing California's wine production

While Europe has France, Italy, and Spain, the US has California. The bulk of US wine production takes place in the Golden State, accounting for roughly two-thirds of the United States’ nearly 800 million gallons produced each year. This chart compares California and United States wine production from 1995 through 2022. Production in both has been trending down for several years, partially due to extreme weather events.

The best day to buy a Christmas tree, with data

Using data from 200,000 tree sales in 2018, the authors found that some weekends are more expensive than others. Learn when it's optimal to buy a tree here.

Tracking butterfly migration via the pollen they collect

Trillions of insects migrate around the world each year, but many are too small to track with physical trackers, leaving their migratory routes a mystery. In recent years, scientists have utilized pollen grains collected from butterflies to analyze which plants that pollen originated from—providing substantial data to infer the insect's specific route. Research has shed light on many insects' migrations since, including the Painted Lady butterfly. Read more and see a map here.

How a cut flower goes from a Colombian farm to a US vase in under 72 hours

The flower industry operates a complex logistical relay to move flowers to distant markets. Blooms are harvested before opening, chilled immediately, auctioned, and air-freighted to retailers before they are fully in bloom.

The first Americans arrived between 14,000 and 40,000 years ago

Early peoples migrated to the Americas via the Bering Land Bridge or coastal routes, spreading across the continent as hunter-gatherers. Archaeological sites in present-day New Mexico containing stone tools and animal bones mark some of the earliest confirmed evidence of human life in North America.

The last day of the Lunar New Year culminates in the Festival of Lanterns

The Festival of Lanterns celebrates the first full moon of the year. Elaborate, colorful light displays are held throughout China, with many regions having their own unique traditions, from the candle-lit lanterns in the south to the elaborate lighted ice sculptures common in the northeast.

Watch a time-lapse from space of photosynthesis across Earth

Using NASA satellite imagery, carbon absorption can be tracked and serves as a proxy for photosynthetic activity on land and in the oceans. Over the course of a year, seasonal changes can be observed as plants become dormant in the fall and active again in the spring.

Oregon was the first state to recognize Labor Day

In 1887, Oregon became the first of the 50 states to recognize Labor Day as an official holiday. By June 1894, President Grover Cleveland signed a bill making it a holiday for federal workers. Today, we mostly know Labor Day as summer’s last gasp, but its origin is more nuanced.

The best beer cities in the US

This list contains some expected mainstays, like Asheville, North Carolina, and Portland, Oregon, as well as less-mentioned enclaves, like Minneapolis and Richmond, Virginia.

The average US adult spends roughly $195 on Easter

That's up from $189 in 2025 and the previous record of $192 in 2023. The vast majority of consumers intend to use it on candy (92%), followed by food (89%) and other gifts.

Hand, foot, and mouth is usually seasonal—peaking in summer—but not always

This painful, contagious disease most commonly has outbreaks in summer and early fall in the US because the enteroviruses that cause disease can most readily survive and be transmitted in warmer, humid conditions. It can still show up throughout the year, however.

The McIntosh apple, long dominant, is now 10th-most popular in the US

First grown in Ontario, Canada, in 1795, the McIntosh became synonymous with the apple by the early 1900s. Newcomers on the market—especially the Honeycrisp in the 1990s—has nearly rendered the McIntosh irrelevant.

Explore an interactive map built from more than 100,000 survey responses on where people find joy in their lives

See how each of the more than two million known species relates to each other—and to common ancestors—in this zoomable tree of life.

View the ten deadliest tornadoes in US history.

The 19th-century painters of the Hudson River School were among the first American romantics, with portraits that displayed the natural beauty of the young country.

Visualize the path of every solar eclipse from 1900 to 2099 and see what each looks like when observed from different locations on Earth.

The American Society of Civil Engineers' infrastructure report card gave the US a C in 2025, its highest grade since the project launched in 1998.

44% of Americans say they pray at least once a day—discover how your state's religiosity stacks up against the rest of the country.

Between 10 million and 50 million people in the US develop rashes from poison ivy, poison sumac, and poison oak each year.

Hear about the 250-year history of the United States Postal Service, complete with some of its strangest deliveries, important innovations, and the figures that made it an American institution.

While the first exchange-traded fund (a 'basket' of different assets that can be bought and sold on a stock exchange) in the US only launched in 1993, the global ETF market has grown to more than $10T in the short time since.

Explore an interactive map of battles from the American Revolution, along with detailed summaries of each engagement

See the 25 of the best photos of auroras from around the world.

While El Niño moves warm Pacific Ocean waters east along the equator, La Niña moves them west, shifting where rainfall will become more common for months.

This real-time tracking of the hantavirus cruise ship outbreak in May 2026 offers a unique glimpse into the global reach of the outbreak and whether the virus sickened passengers and their communities around the world.

Calculate how much of your tax dollars go to each federal program based on your income, filing status, and number of children

Scientists can determine Earth's past climate conditions by analyzing air trapped in microscopic bubbles within ice cores—columns of compressed snow layers that build up over hundreds of thousands of years.

The US Constitution is widely regarded as the longest-standing written national constitution still in force—see how it has influenced rights worldwide.

Fireworks-related ER visits are on the rise—in 2024, they increased by 52% as compared to the prior year.

Before humans, the Soviet Union and the United States sent animals—including apes, dogs, and cats—to space during the Space Race.

Exploring the Larry Bird punch that almost changed March Madness

The US first hosted the World Cup in 1994, a tournament that lives in soccer infamy for its poor planning and the murder of Colombian player Andres Escobar, who'd accidentally scored on his own net.

Up to a million Girl Scouts sell about 200 million cookie boxes every spring, generating $800 million, largely because refusing a child is frowned upon

The Beatles' US label rejected the band's first two singles, 'Please Please Me' and 'From Me to You,' with one executive calling the band 'dead in the water.'

The Great Salt Lake's distinct dual coloration results from high-salinity organisms that only live in the northern portion and produce a purple protein.

For centuries, it was common to sleep in two shifts: a few hours at the beginning of the night, and a longer period beginning around midnight