Resources
Our webinars are designed for broadcast meteorologists so they can keep up to date on the current state of climate science. They are free and count 0.25 points toward AMS/CBM recertification.
Tag Results - TRENDS
Fall Temperature Trends
Sep 4, 2019
Fall is getting warmer for most of the United States, resulting in drawn-out mosquito and allergy seasons, and continued energy demands for cooling.
Climate Matters in the Newsroom
National Parks Celebrate 103 Years
Aug 28, 2019
National parks areas have been warming at twice the rate of the rest of the U.S.
Happy Birthday National Parks
Aug 28, 2019
The National Park Service (NPS) turned 103 years old this week. Since their inception on August 25th, 1916, America’s national parks have become treasured areas of wilderness and beauty among American and international tourists, exceeding 318 million visitors in 2018.
Climate Matters in the Newsroom
Climate Change Could Threaten Air Quality Across the Country
Jul 31, 2019
As summers heat up, the air we breathe is increasingly at risk of becoming unhealthy, despite decades of air quality improvements. This Climate Central reporting bulletin provides local data, charts and reporting suggestions to help you cover air quality and warming in your area.
Summer Heat Means Stagnant Air
Hotter summers often lead to more stagnant air—trapping air pollutants that can cause health problems. This release is the first of two on the links between heat and air quality; next week will focus on ground-level ozone.
More Extremely Hot Days (2019)
Jul 10, 2019
Climate change is making local heat extremes all the more extreme, heightening health risks.
Climate Matters in the Newsroom
Warming Waters and Fish
Jun 26, 2019
America’s inland streams, the Great Lakes, and coastal waters are heating up—harming fish and the fishing industry.
Fish in Hot Water: Streams, Lakes, and Oceans
Jun 26, 2019
America’s inland streams, the Great Lakes, and coastal waters are heating up—harming fish and the nation’s $46 billion dollar recreational fishing industry.
2019 Mets Unite
Jun 19, 2019
It’s time to #ShowYourStripes as #MetsUnite to communicate climate change! On the Summer Solstice this Friday, join hundreds of meteorologists by sharing your city’s or state’s “warming stripes.”
2019 Summer Starter: Temperature Trends
Jun 5, 2019
We kick off meteorological summer with the first of two releases on warming summers, which are affecting health, farming, water resources, recreation, and energy costs.
Wildfire Season Preview
May 29, 2019
As the wildfire season begins, data reported to the U.S. Forest Service shows an increase in the number and acres burned of large western wildfires, especially in warmer years.
2019 Rain in Context
May 22, 2019
We analyze state rainfall trends and provide a year-to-date update, finding that average annual rainfall is increasing in most U.S. states.
Wettest Days Getting Wetter
May 15, 2019
Climate change is making the wettest days wetter, heightening flood risks.
Climate Matters in the Newsroom
Downpour
May 15, 2019
Climate change strengthens downpours, heightening the risk of damaging floods.
More Warm Spring Days
May 8, 2019
A warming climate means more spring days with above-normal temperatures, leading to impacts like more pollen and pests.
Annual CO2 Peak & Day of Prayer
May 1, 2019
Atmospheric CO2 concentrations are nearing this year’s peak above 413 ppm — the highest level in millions of years. We also connect with the National Day of Prayer, analyzing the houses of worship at risk from sea level rise.
Tornado Trends
Apr 24, 2019
Tornado season is changing in the United States — with more tornadoes occurring in the biggest outbreaks, the tornado risk zone increasing east of the Mississippi, and more striking outside the traditional time of year.
Earth Day: Fastest Warming Cities and States
Apr 17, 2019
Our new report breaks down the nation’s fastest-warming areas since the first Earth Day — highlighting how climate change has already arrived.
Climate Matters in the Newsroom
American Warming
Apr 17, 2019
Americans marked the first Earth Day 49 years ago this month — and since then, human emissions have made America hotter.
Planting Zones Moving North
Apr 10, 2019
Planting zones are shifting north as the climate warms, affecting farmers and backyard gardeners alike.
Western Snowpack & Drought Update
Apr 3, 2019
The winter precipitation season has ended in the West with a healthy water supply, a happy exception to a long-term drying trend related to climate change.
More Pollen Calling
Mar 27, 2019
Warming temperatures have lengthened U.S. growing seasons by weeks or even months in cities across the U.S., extending the allergy season.
Climate Matters in the Newsroom
Your Changing Allergy Season
Mar 27, 2019
Allergy season is starting up, and climate change means more time for plants to grow and send out pollen.
Heavy Rain, Climate Extremes, and Beer
Mar 13, 2019
After the wettest winter on record, we show how extreme precipitation is contributing to an upward trend in the NOAA/NCEI Climate Extremes Index. Also, we look ahead to St. Patrick’s Day and how climate change affects beer.
Spring Warming
Mar 6, 2019
Spring is warming in most parts of the country, affecting allergy seasons and agriculture.
How Was This Winter’s Cold Perceived?
Feb 27, 2019
A new study finds that people’s sense of “normal” weather is confined to the last several years — making the long-term realities of climate change less obvious. This week, we apply that analysis to our recent winter.
2018 Year in Review: Temperatures & Billion-Dollar Disasters
Feb 6, 2019
NOAA and NASA have released their global and national climate reports for 2018 — showing that last year was the globe’s fourth-hottest on record.
Climate Matters in the Newsroom
Warming Winters: On Thin Ice
Jan 23, 2019
Despite the recent cold snap, warming is transforming America’s winters.
Winter Warming: On Thin Ice
Jan 23, 2019
This week’s snow-friendly temperatures are becoming less frequent, as warming winters are threatening the nation’s valuable winter recreation sector.
Locally Hottest Years
Jan 9, 2019
For most places in the U.S., the hottest year on record has come during the current decade.
Holiday Warming & Extremes
Dec 19, 2018
In our final release of the year, we explore Christmas extremes, consider how December warming could affect white Christmas chances.
Climate Matters in the Newsroom
2018 Review: Rainfall
Dec 12, 2018
Climate change is driving heavy rain in many U.S. states — and associated damages to water quality, infrastructure, and property.
Rainfall Records of 2018
Dec 12, 2018
2018 was another year of weather extremes, as record rainfall fell over much of the East and Midwest — a damaging trend that is getting worse with climate change.
Billion-Dollar Disasters of 2018
Dec 5, 2018
As the climate changes, we are seeing more extreme weather events with billion-dollar price tags and 2018 is no exception.
Seasonal Warming
Nov 28, 2018
Winter is the fastest-warming season in most of the country, impacting agriculture and winter sports economies.
Halloween Extremes & Trends
Oct 30, 2018
Halloween temperature extremes vary dramatically, but Octobers are getting warmer in nearly all U.S. cities.
Warming Fall Nights
Oct 17, 2018
Fall nights are warming in our changing climate, lengthening the season for allergies and insects, and affecting fall foliage.
Climate Matters in the Newsroom
The Rise of Renewables
Sep 19, 2018
Our new tool estimates amounts of local solar and wind generation.
Fall Temperature Trends
Sep 5, 2018
Fall is trending warmer in the U.S., which can affect fall foliage and agriculture.
Climate Matters in the Newsroom
Disease Danger Days on the Rise
Aug 8, 2018
Pests like mosquitoes, ticks thrive in a warming world. And in a new report, most cities see jump in mosquito “disease danger days."
Mosquito Disease Danger Days
Aug 8, 2018
The number of days a year that mosquitoes can transmit disease is increasing in much of the U.S.
More Extremely Hot Days
Jul 25, 2018
The number of extremely hot summer days is increasing in much of the U.S., and with it, the risk of heat-related illness.
New Normals
May 16, 2018
The 30-year average temperature, known as the meteorological normal, is rising in most locations in the U.S.
Snow Checkup
Mar 28, 2018
April 1 marks the annual end-of-season measure of western snowpack. This year follows the long-term trend of decreasing snowpack and increasing water scarcity for parts of the U.S.
Cherry Blossoms Coming Earlier
Mar 21, 2018
Cherry blossoms in Washington, D.C. are blooming earlier, on average, and may reach peak bloom a month earlier by the end of the century.
Winter Olympics: PyeongChang 2018
Feb 7, 2018
The long term viability of some host cities for Olympic Winter Games is at risk. While this year’s games are getting off to a very cold start, warming winters will make some previous host cities unsuitable in the future.
Groundhog Day
Jan 31, 2018
Whether or not Punxsutawney Phil sees his shadow, the six-week period that follows Groundhog Day is trending warmer in most locations across the U.S.
Recent Polar Outbreak in the Eastern U.S.
Jan 11, 2018
The recent cold spell in the U.S. has retreated for now, and our World Weather Attribution team analyzed its characteristics in the context of our changing climate.
Record Highs Reign
Dec 6, 2017
Daily record highs are dramatically outpacing daily record lows in the U.S. in the last 20 years.
Warming Winter
Nov 29, 2017
Winters are warming across the U.S., and in some locations, the warming is dramatic. The Northern Plains, Great Lakes, and the Northeast are warming the fastest, while warming is taking place at a slower rate in the western U.S.
First Frost: Frost-Free Season Getting Longer
Oct 11, 2017
In much of the U.S., the average date of the first freeze is coming later due to climate change, raising agricultural and public health concerns.
Warm Fall Days
Oct 4, 2017
The number of fall days with temperatures above normal is increasing in much of the U.S.
Increasing Climate Extremes
Sep 13, 2017
From back-to-back landfalling hurricanes in the East to drought and fires in the West, this has been a summer of climate extremes.
Farmers Markets
Aug 9, 2017
In celebration of National Farmers Market week, we show how local farmers are helping the climate by using practices that reduce atmospheric carbon dioxide.
Warm Nights
Jul 19, 2017
Nights are getting warmer, on average, across the country, and these trends in nighttime temperatures are another symptom of a world warming from from climate change.
The Season of Extreme Heat
Jun 14, 2017
Thanks for partnering with us on The Season of Extreme Heat, our special Climate Matters project raising awareness about the impacts of increasing extreme heat with climate change.
More Statewide Heavy Rain
May 3, 2017
A new Climate Central analysis shows an upward trend in the number of heavy precipitation events in the vast majority of the Lower 48 states since 1950.
Leaves Emerging Earlier
Mar 15, 2017
On average, leaves are emerging earlier in the spring as the planet warms.
2016-17 Winter Review
Mar 1, 2017
This was one of the 10 warmest winters on record for much of the country. Only the Northwest was much cooler than average.
Snow Records & Trends
Feb 8, 2017
The average amount of snow covering North America is decreasing. But paradoxically, our warming world could also lead to individual storms that produce heavier snow.
Winter Sports & Fun
Feb 1, 2017
As climate change warms up winter, it will be more difficult to participate in our winter sports and recreation activities, a trend which will negatively impact the economy in 75% of states.
2016: 2nd Hottest Year in the U.S.
Jan 9, 2017
2016 was the second hottest year on record in the U.S. and 8 of the 10 hottest years on record have come since 1998.
2016 Rankings
Dec 7, 2016
An analysis of individual U.S. stations shows more than half are having one of their 5 hottest years on record. Each of the lower 48 states is having one of its 10 hottest years on record.
Frost-Free Season
Oct 12, 2016
Climate change is increasing the length of the frost-free season — the time between the last frost in the spring and first frost in the fall — in much of the U.S.
400ppm in Context
Jun 26, 2016
Analysis of ancient air bubbles recovered from deep within Antarctic ice indicates that current level of atmospheric carbon dioxide is the highest in at least 800,000 years.
Tornadoes & Climate Change
May 10, 2016
While there are fewer days each year with tornadoes, on average, the number days with more than 30 tornadoes is increasing.
Winter Precipitation: More Rain, Less Snow
Feb 10, 2016
The ratio of snow to rain that falls each winter season will change in a warming world.
Coldest Days of Winter
Jan 27, 2016
Different parts of the country have their coldest days of winter at different times of the season.
Thanksgiving Extremes
Nov 24, 2015
Thanksgiving weather is variable from year to year, but Novembers are trending warmer across the U.S.
States at Risk: America’s Preparedness Report Card
Nov 18, 2015
Using a traditional letter grade, the report identifies each state's level of preparedness for its climate change risks based on scientific analysis of current and future changes in threats and a review of each state’s policies and actions as compared to other states.
Warming November
Nov 4, 2015
Novembers are warming on average across the country, at a rate of 0.51°F per decade since 1970 — 2.3°F during that time.
What Does This Past Winter Mean For Summer?
May 13, 2015
When the winter is unusually warm or cold, the public often asks if that has any bearing on temperatures the following summer.
Spring is Coming Early
Mar 18, 2015
Although an earlier spring has some appeal, it can disrupt the symbiotic relationship between animals and plants, and make plants more susceptible to late-season frost.
Winter Storm Intensity & Frequency
Feb 18, 2015
Mid-latitude winter storms have increased in both intensity and frequency nationally since 1950.
Winter Precipitation Trends
Dec 3, 2014
When it comes to precipitation, it’s more of a mixed picture.
Superbowl XLVIII & Groundhog Day
Jan 29, 2014
Here are some of the coldest NFL cities along with some historical snowfall facts to share with your viewers in the run up to Super Bowl Sunday.
