For the past few decades, the average daily temperatures in USA during March have been around +61°F.
The weather differs across the USA in March. You may encounter maximum temperatures of +61°F at noon in Honolulu and +43°F in Chicago. So plan your activities, and packing, based on the individual locations rather than the country as a whole.
Temperature, wind and humidity in March
Average
Atlanta
Boston
Chattanooga
Chicago
Dallas
Denver
Detroit
Fort Lauderdale
Fort Myers
Honolulu
Houston
☀️
+61°F
Avg. max. temperature
-22°F
Min.
+93°F
Max.
74 mm
Total precipitation
67%
Avg. humidity
3 m/s
Avg. wind
7 ☀️
Sunny Days
10 ⛅️
Cloudy
10 🌦
Rainy
Our opinion: USA has good weather in March.
USA in March – what city is the…
rainiest? Chattanooga, with an average of 4 mm of rain and humidity of 64%;
warmest? Honolulu, with daytime temperatures averaging +81°F;
windiest? Honolulu, with an average of 4 m/s;
coolest? Chicago, with daytime temperatures averaging +43°F;
How good is the weather in USA in March?
During March, the USA usually offers good weather overall, with air pressure around 1015 HPa. This means you may encounter some rainy weather too – March brings around 85 mm of rain and winds averaging 3 m/s. Humidity ranges between 55% in Denver and 72% in Houston. In general, it tends to be more humid near the sea and lake and drier inland.
The weather is usually pretty good this time of year, with daytime temperatures around +61°F.
This is how hot it usually is in March
The average daily temperatures above don't tell you everything about how hot it can be in USA. For example, cold nights can make a big difference for those staying in tents or unheated houses. Extra hot days, on the other hand, can make a big difference for those who plan to engage in demanding physical training or competition. So here are some more temperatures for March:
Average
Atlanta
Boston
Chattanooga
Chicago
Dallas
Denver
Detroit
Fort Lauderdale
Fort Myers
Honolulu
Houston
Average maximum temperature for the month: +61°F;
Average minimum temperature for the month: +43°F;
Highest monthly temperature: +64°F;
Lowest monthly temperature: +39°F;
Monthly temperatures:
Average
Atlanta
Boston
Chattanooga
Chicago
Dallas
Denver
Detroit
Fort Lauderdale
Fort Myers
Honolulu
Houston
Warmest: July with an average +86°F during the day;
Coldest: January with an average +50°F of the day;
Hottest month in hottest city: July in Honolulu;
Coldest month in coolest city: January in Chicago;
Can you swim in USA in March?
Here are the minimum and maximum water temperatures in cities in USA in March:
Fort Lauderdale
🏊
Comfortable
69°F - 78°F
Honolulu
🏊
Comfortable
73°F - 77°F
You can definitely swim in Fort Lauderdale, Honolulu in March, with the water temperature of +69°F and up.
Winds in USA during March
Wind speed in USA in March based on historical data:
Average
Atlanta
Boston
Chattanooga
Chicago
Dallas
Denver
Detroit
Fort Lauderdale
Fort Myers
Honolulu
Houston
March tends to offer light winds averaging 3 m/s. However, coastal cities may experience breezes during the mornings and afternoons.
Comparison between cities in March:
Highest average wind speed: Honolulu with 4 m/s;
Lowest average wind speed: Chattanooga with 1 m/s;
Windiest day of the month: Honolulu with 5 m/s;
The least windy day of the month: Chattanooga with 2 m/s;
Humidity and precipitation in USA in March
Amount of rainfall in mm during March in USA based on historical data:
Average
Atlanta
Boston
Chattanooga
Chicago
Dallas
Denver
Detroit
Fort Lauderdale
Fort Myers
Honolulu
Houston
March tends to be an extremely humid month with 70% humidity and 85 mm rainfall. In general the humidity tends to be a little lower in mountainous regions and more humid closer to water.
Comparison between cities in March:
Average
Atlanta
Boston
Chattanooga
Chicago
Dallas
Denver
Detroit
Fort Lauderdale
Fort Myers
Honolulu
Houston
Highest average rainfall: Chattanooga with 132 mm;
Lowest average rainfall: Denver with 24 mm;
Most number of rainy days: Houston with 13 rainy days;
Least number of rainy days: Denver with 6 rainy days;
Highest risk of rain during the day: Houston with 42%;
Least risk of rain during the day: Denver with 19%;
Highest average humidity: Houston with 72%;
Lowest average humidity: Denver with 55%;
Snow
Amount of snow in mm. during March in USA based on historical data:
Average
Atlanta
Boston
Chattanooga
Chicago
Dallas
Denver
Detroit
Fort Lauderdale
Fort Myers
Honolulu
Houston
Total snow in March is about 6 mm, with a 6% chance of snow on a typical day.
Comparison between cities in March:
Average
Atlanta
Boston
Chattanooga
Chicago
Dallas
Denver
Detroit
Fort Lauderdale
Fort Myers
Honolulu
Houston
Highest average snowfall: Denver with 34 mm;
Lowest average snowfall: Fort Lauderdale with 0 mm;
Most number of snowy days: Denver with 8 snowy days;
Least number of snowy days: Atlanta with 0 snowy days;
Highest chance of snow during the day: Denver with 26%;
Least chance of snow during the day: Atlanta with 0%;
Tips for traveling to USA in March
Looking for some tips for traveling to the sun, snow, or whatever you're aiming for USA? Activities, weather, and clothing are closely linked. In addition, it's important to pack only what you really need so you don't have to worry about heavy packing or paying extra baggage fees.
Here is some advice on what to pack and what kind of activities you can do in the USA based on the weather that March is expected to bring. The advice applies to the country as a whole – local weather and possible activities may differ somewhat.
rainy, mild weather with light winds and very high humidity in March
Pack right for March
The weather makes a difference when it comes to packing - especially which items should go in your suitcase. The tips below are designed to help you pack light and right without carrying more than necessary.
For light showers, an umbrella or a thin and light rain cape is usually sufficient, while more rain may require rainwear and rain boots.
Cool weather is between warm and cold. This means you can bring long pants and/or a longer skirt and an extra sweater. Be aware that cool days can alternate with cold nights - it may be wise to also pack a hat, gloves and a scarf.
Light winds are probably most comfortable in hot weather but is cooling in cool and cold weather. If it is hot (when the air temperature is about 30 degrees), the wind can have a warming effect. A thin, windproof jacket and long trousers help to counteract these effects.
High humidity means that the air conducts heat to and from the skin more easily. For example, if the air is hot (above skin temperature), it will be harder to stay cool. On the other hand, if the air is cool or cold, it is more difficult to stay warm. In high humidity, the choice of clothing makes less of a difference. However, your physical activity plays a bigger role.
FAQ
Frequently asked questions about the weather in USA in March:
What can you do outside when it's warm in USA?
Bathing and sunbathing can be suitable. Warm (but not hot) days are also good for activities that are not so physically demanding: sightseeing on foot, by boat, on a scooter, camel riding. You can also exercise easily as long as you make sure to cool down and quench thirst.
Is March a good time to visit USA?
March is a really good time to go to USA. The weather is nice so plan your packing around outdoor activities and exploring. Check other months when is a good time to visit USA.
For this page, we’ve looked at the typical weather in USA, based on historical hourly weather data from January 1, 1979, to December 31, 2023.
For past dates, we show actual recorded data at the location at that time. Forecasts are based on recorded weather during that day of the year, averaged over the total years for which we have records (unless stated otherwise). The daily temperature is the highest recorded temperature in the shadow during that day.