United States Weather in March
Average Temperatures in March
March in the United States is a transitional month, with weather varying widely across the country. As winter ends and spring begins, temperatures begin to rise, but some regions can still experience cold weather, while others start to see warmer, milder conditions. Coastal regions and southern areas begin to warm, while northern and inland regions may still experience the remnants of winter.
Highest and Lowest Temperatures
In New York City, the average high temperature in March ranges from 8°C to 12°C (46°F to 54°F), with nighttime lows dropping to around 2°C to 5°C (35.6°F to 41°F). The weather can still be chilly at times, and snowstorms are not uncommon, especially early in the month.
In Chicago, March can be quite variable. The daytime highs average between 7°C and 11°C (44.6°F to 51.8°F), but the city can still experience some snowfall, with lows averaging between -1°C and 2°C (30°F to 35.6°F). Chicago’s proximity to Lake Michigan can make temperatures feel colder than they actually are, especially with the wind chill.
On the West Coast, Los Angeles sees much milder conditions. Average highs range between 18°C and 22°C (64.4°F to 71.6°F), and the lows drop to around 10°C to 14°C (50°F to 57.2°F). The weather is generally sunny, making it an ideal time for outdoor activities in this region.
In Miami, the temperatures are warmer than in the northern cities, with daytime highs ranging between 23°C and 28°C (73.4°F to 82.4°F) and lows ranging from 17°C to 21°C (62.6°F to 69.8°F). The weather is warm and pleasant, making it an excellent time to visit Florida, especially for beachgoers.
In Denver, located at a higher elevation, March weather can be quite unpredictable. High temperatures range between 8°C and 12°C (46°F to 54°F), but snow is still a possibility in early March. The lows drop to -4°C to 1°C (24.8°F to 34°F), and travelers may experience clear, sunny days or sudden snowstorms, especially in the mountains.
Below is a table showing the average temperatures and precipitation levels for March across several U.S. cities during the past 10 years:
Table: Average Temperatures and Precipitation in March (Past 10 Years)
| Year | New York City High (°C) | New York City Low (°C) | Chicago High (°C) | Chicago Low (°C) | Los Angeles High (°C) | Los Angeles Low (°C) | Miami High (°C) | Miami Low (°C) | Denver High (°C) | Denver Low (°C) | Precipitation (mm) |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 2015 | 10.0 | 4.0 | 9.5 | 2.0 | 19.5 | 11.0 | 24.5 | 18.0 | 10.5 | -2.5 | 110.0 |
| 2016 | 11.5 | 5.0 | 10.0 | 3.0 | 20.0 | 12.0 | 25.0 | 19.0 | 12.0 | -1.0 | 115.0 |
| 2017 | 9.5 | 2.5 | 8.0 | -1.0 | 18.5 | 10.5 | 23.0 | 17.0 | 11.0 | -3.0 | 120.0 |
| 2018 | 12.0 | 6.0 | 11.0 | 4.0 | 22.0 | 13.0 | 26.5 | 20.0 | 13.5 | -1.5 | 110.0 |
| 2019 | 9.0 | 3.0 | 7.5 | 0.0 | 21.0 | 12.5 | 25.5 | 18.0 | 10.0 | -4.0 | 95.0 |
| 2020 | 10.5 | 5.5 | 9.0 | 3.0 | 19.5 | 12.0 | 23.0 | 19.5 | 12.5 | -3.0 | 130.0 |
| 2021 | 11.0 | 5.0 | 10.5 | 2.5 | 21.5 | 13.5 | 24.0 | 20.0 | 12.0 | -2.0 | 105.0 |
| 2022 | 10.0 | 4.5 | 9.5 | 2.0 | 22.0 | 14.0 | 26.0 | 19.5 | 11.0 | -1.0 | 98.0 |
| 2023 | 9.5 | 3.0 | 8.5 | 1.5 | 21.0 | 13.0 | 25.5 | 19.0 | 10.5 | -3.0 | 110.0 |
| 2024 | 11.5 | 5.5 | 9.0 | 2.5 | 20.5 | 12.5 | 24.5 | 18.5 | 12.5 | -2.0 | 100.0 |
From the table, we can see that New York City experiences an average high of 9°C to 12°C (48.2°F to 53.6°F) in March, while Los Angeles has warmer temperatures, ranging from 19°C to 22°C (66.2°F to 71.6°F). Chicago sees colder temperatures, with highs between 7°C and 11°C (44.6°F to 51.8°F) and lows between -1°C and 2°C (30°F to 35.6°F). The southern regions such as Miami enjoy milder weather, with highs of 23°C to 26°C (73.4°F to 78.8°F) and lows around 17°C to 20°C (62.6°F to 68°F). Denver experiences variable temperatures, ranging from 10°C to 13°C (50°F to 55.4°F) during the day and lows around -3°C to -4°C (24.8°F to 25°F) at night. Precipitation across the cities is relatively moderate, with most locations receiving between 95mm and 130mm of rain in March.
Precipitation Levels
In March, precipitation levels across the U.S. vary greatly due to the geographical diversity of the country. Some regions, particularly in the west and northeast, experience moderate rainfall, while others, like the southern and western deserts, receive very little.
Rainfall Patterns
In New York City, March tends to be a wetter month, with around 95mm to 130mm of precipitation. The rain comes in the form of showers or brief thunderstorms, especially during the latter half of the month as spring approaches. Snow is still possible early in the month, especially in the northern suburbs, but it is rare by the end of March.
In Chicago, March sees moderate rainfall as well, with 95mm to 110mm of precipitation. The city experiences a mix of rain and snow, and the weather is often unpredictable, making it a month where winter and spring conditions overlap. Snowstorms can still occur, but they tend to be less frequent and intense than in the winter months.
The West Coast, particularly Los Angeles, is usually drier in March, with rainfall averaging around 80mm to 95mm. The rain that does fall is generally light and infrequent. California may experience brief storms, but they do not last long, and the weather remains mild for most of the month.
In Miami, rainfall is moderate, typically between 85mm to 100mm. It is the beginning of the rainy season in Florida, and you may experience some afternoon thunderstorms, but rain tends to be short-lived.
In Denver, March is one of the wetter months, with precipitation levels ranging from 90mm to 110mm. Snowfall is still common, particularly early in the month, but there is also a significant amount of rain as temperatures rise during the month.
Snowfall
Snow is still possible in March, particularly in the northern and central parts of the U.S. Chicago and New York City may experience snowstorms early in the month, but snow accumulation is generally light. Denver and other high-altitude areas like the Rocky Mountains can still receive significant snowfall in March, especially in the early part of the month. Areas like Aspen, Vail, and Breckenridge continue to experience ski-friendly conditions into March.
Wind Patterns
March often brings variable wind conditions, particularly in the central and northern regions of the U.S., where the changing weather patterns can create gusty conditions.
Coastal Winds
In Los Angeles and Miami, the winds are typically light to moderate. In Miami, the winds are influenced by the warm sea breezes of the Atlantic Ocean, with speeds ranging from 15 km/h to 20 km/h (9 mph to 12 mph). In Los Angeles, the winds are generally light, with occasional breezy spells, especially along the coast. Wind speeds generally range from 10 km/h to 18 km/h (6 mph to 11 mph).
Inland Winds
In Chicago and New York City, March is typically a month when winds are more pronounced. Wind speeds in these areas can range from 20 km/h to 35 km/h (12 mph to 22 mph), particularly during frontal changes or low-pressure systems passing through. These winds can make temperatures feel colder than they are, especially with the wind chill factor.
In Denver, winds can be quite gusty, especially in the Rocky Mountains. Wind speeds of 30 km/h to 40 km/h (18.6 mph to 24.8 mph) are not uncommon, particularly with passing cold fronts or low-pressure systems.
Atmospheric Pressure
In March, atmospheric pressure in the U.S. fluctuates due to the arrival of low-pressure systems and the transition from winter to spring. These systems can bring rain, snow, and changes in temperature, particularly in the northern regions.
Low-Pressure Systems
Low-pressure systems are common in March, especially in the northern and central parts of the country. These systems bring precipitation, wind, and fluctuating temperatures, particularly to regions like the Great Lakes and Northeast. However, they are not as intense as winter storms, and the weather usually transitions into milder spring conditions by the end of the month.
Considerations for Travelers in the United States During March
March is a transitional month in the U.S., and there are several factors to consider when planning a trip, as weather conditions can vary widely.
Packing Essentials for March
When traveling in March, packing should account for the unpredictable weather. In New York City, Chicago, and other northern cities, pack layers, including warm clothing, coats, and scarves, as snow or chilly winds are still possible. For Los Angeles and Miami, light layers, sunglasses, and sunscreen are essential, as temperatures are milder and the sun can be intense during the day.
For Denver and other mountainous areas, pack warm outerwear and waterproof gear if you plan to ski or hike, as there may still be snow. Comfortable shoes are a must for walking, especially in urban areas, and rain gear can come in handy if visiting cities in the Northeast or Great Lakes regions.
Health and Safety Considerations
The U.S. is a generally safe country for travelers, but depending on the region, you should be cautious of weather-related hazards like slippery sidewalks in icy areas or sunburn in southern cities like Miami or Los Angeles. If you plan to visit mountainous regions, especially for skiing, it’s important to stay hydrated and avoid altitude sickness.
Travel Disruptions Due to Weather
While March does not typically bring extreme weather like summer storms or winter blizzards, rain showers, snowstorms, and wind gusts can still cause travel disruptions, particularly in the Northeast or Midwest. Flight delays and road closures due to snow and ice are still possible in northern regions, so it’s important to check weather conditions in advance.
Currency and Economic Considerations
The U.S. uses the U.S. Dollar (USD), and ATMs are widely available throughout the country. Credit cards are accepted in most locations, especially in cities. Be sure to notify your bank of international travel to avoid issues with card payments, especially if traveling to remote areas.
Things to Do in the United States in March
March is a wonderful time to visit the U.S., with many destinations offering spring festivals, outdoor activities, and cultural experiences.
Visit National Parks
March is an excellent time to visit national parks, particularly in California, Arizona, and Utah, where the weather is mild and ideal for outdoor exploration. Popular parks like Yosemite, Zion, and Grand Canyon offer stunning landscapes, with fewer crowds compared to the summer months.
Explore Urban Attractions
In New York City, visit iconic landmarks like Central Park, the Statue of Liberty, and the Metropolitan Museum of Art. Los Angeles offers great weather for sightseeing, with attractions like Hollywood Boulevard, Griffith Park, and the Getty Museum.
Experience Spring Festivals
March is a great time for cultural festivals, including St. Patrick’s Day celebrations in Chicago, New York City, and Boston. The SXSW Festival in Austin, Texas, is a popular music, film, and technology festival that draws thousands of visitors each year.
Skiing and Snowboarding
For those interested in winter sports, Denver and mountain resorts like Aspen and Breckenridge offer excellent skiing and snowboarding conditions in March, as snow is still abundant.
Beaches and Coastal Activities
Head to Miami for beach activities, such as sunbathing, snorkeling, and scuba diving. The warm temperatures make this an ideal destination for beach lovers looking to escape the chill of northern states.
