Weather
Climate Avg| Time | Temp | Dew Pt | Humidity | Wind | Conditions |
|---|---|---|---|---|---|
| Start | 34.7 – 39.5°F | 32° Crisp | 74 – 90% | 6 mph NW | Drizzle |
| 8:00 AM | 35.2 – 43.1°F | 32° Crisp | 54 – 86% | 8 mph NW | Clear sky |
| Finish | 43.4 – 43.4°F | 26° Crisp | 50 – 50% | 11 mph W | Clear sky |
Based on 3-year average for this date. Real forecast available in 225 days.
Elevation Profile
Course Stats
Mile Splits
| Mile | Grade |
|---|---|
| 1 | +0.2% |
| 2 | +0.3% |
| 3 | -1.0% |
| 4 | -0.8% |
| 5 | +0.7% |
| 6 | -1.1% |
| 7 | -0.2% |
| 8 | +0.0% |
| 9 | -0.1% |
| 10 | +0.2% |
| 11 | +0.9% |
| 12 | -0.1% |
| 13 | +0.3% |
| 14 | -1.0% |
RM Difficulty Index
Race-Day Weather History
Race-morning conditions on this date over the past 5 years: median 43°F with a 31°F dew point and 10 mph wind. Heat has rarely been a factor.
| Year | Temp | Dew Pt | Wind | Rain | Sky |
|---|---|---|---|---|---|
| 2025 | 39°F | 31°F | 4 mph | — | Clear |
| 2024 | 46°F | 41°F | 4 mph | — | Partly cloudy |
| 2021 | 41°F | 22°F | 10 mph | — | Clear |
| 2020 | 43°F | 24°F | 12 mph | — | Partly cloudy |
| 2016 | 44°F | 37°F | 13 mph | 0.09" | Drizzle |
Morning conditions (race window) on the NYC Half Marathon calendar date each year, from the ERA5 reanalysis archive — the race’s usual slot, not necessarily each edition’s exact day.
New York Half Marathon Pace Calculator & Race Plan
The New York Half Marathon, officially the United Airlines NYC Half, is one of the most popular half marathons in the country. The course starts in Brooklyn near Prospect Park, crosses the Manhattan Bridge into Lower Manhattan, runs north through Times Square and along the West Side, and finishes in Central Park. The park's rolling hills in the final miles are tougher than they look on paper, especially on tired legs after 10 miles of city running.
The New York Half Marathon is organized by NYRR and typically sells out quickly. March weather in New York can range from below freezing to mild spring conditions, making race-day strategy weather-dependent. Our splits adjust for the Central Park hills and whatever the forecast shows, giving you a realistic plan for this signature New York City road race.
NYC Half Marathon FAQ
When is the next NYC Half Marathon?›
The next NYC Half Marathon is on Sunday, March 14, 2027.
How long is the NYC Half Marathon?›
The NYC Half Marathon is 13.1 miles (21.097 km), the standard half marathon distance. It runs in New York, NY.
How much elevation gain does the NYC Half Marathon have?›
The NYC Half Marathon has about 226 ft (69 m) of climbing and 260 ft of descent, with a maximum grade of 1.08%.
Is the NYC Half Marathon flat, downhill, or hilly?›
The NYC Half Marathon is a net downhill course, dropping 33 ft (10 m) from start to finish, with 226 ft of climbing along the way.
How hard is the NYC Half Marathon?›
Runner's Math scores the NYC Half Marathon 34/100 (Moderate) — #9 of 16 half marathons in our library, ranked by modeled time cost. The profile costs about 0:20 versus a flat course for a runner at 4:00-marathon pace.
What's the weather usually like at the NYC Half Marathon?›
Over the past 5 years on this date, median race-morning conditions were 43°F with a 31°F dew point and 10 mph wind. Heat has rarely been a factor.