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New York City weather by month
Historical averages 2016–2025 · not a forecast
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When is the best time to visit New York City?
For a warm holiday, the best week has been 23–29 August (Weather Index 91). Favourable start dates for a 7-day trip run from 16 August to 29 August. July is warmest (29°C), October is driest and July has the most sun.
- Warmest
- July 29°C
- Coolest
- January 4°C
- Driest
- October 27% rain-day chance
- Wettest
- July 42% rain-day chance
- Sunniest
- July 12 hours a day
A rain day has 1 mm or more, snow included, so a short shower counts. Monthly averages below give the amounts.
Monthly averages in New York City
New York City historical monthly estimates, 2016–2025. Temperatures and sunshine are daily averages.
| Month | High (°C) | Low (°C) | Rain-day chance (%) | Expected rain days | Precipitation (mm/month) | Sunshine (hours/day) |
|---|---|---|---|---|---|---|
| January | 4.0 | -2.4 | 29.7 | 9.2 | 81.8 | 6.5 |
| February | 5.9 | -1.3 | 35.7 | 10.0 | 87.8 | 6.9 |
| March | 9.7 | 2.5 | 34.2 | 10.6 | 103.3 | 8.5 |
| April | 15.0 | 7.6 | 38.3 | 11.5 | 99.9 | 9.1 |
| May | 20.4 | 12.9 | 39.4 | 12.2 | 98.6 | 9.6 |
| June | 25.9 | 18.3 | 34.7 | 10.4 | 82.1 | 11.3 |
| July | 29.2 | 22.2 | 41.9 | 13.0 | 128.6 | 11.7 |
| August | 27.6 | 21.0 | 35.8 | 11.1 | 96.8 | 10.9 |
| September | 24.0 | 17.2 | 33.3 | 10.0 | 91.6 | 8.9 |
| October | 18.5 | 11.3 | 27.4 | 8.5 | 102.2 | 7.8 |
| November | 11.7 | 4.3 | 28.0 | 8.4 | 76.0 | 7.3 |
| December | 6.0 | -0.2 | 32.9 | 10.2 | 104.4 | 6.0 |
Each month averages its own days. Precipitation includes snow. About the data
Sources
Open-Meteo · 1 Jan 2016 – 31 Dec 2025
- Open-Meteo Historical Weather API
- Local days, 2016–2025, every year weighted equally. Each weekly chart averages its own seven days, without smoothing.
- Shading shows the 10th–90th percentile of past days, not forecast confidence.
- A rain day has at least 1 mm, snow included. The last weekly period has eight days.
- Wind is the average daytime (10:00–18:00) maximum, not gusts. Daylight is calculated from latitude. Missing readings stay blank.
- Mugginess (dew point) comes from the original daily summaries, on UTC days.
- The live two-week forecast comes from the Open-Meteo Weather Forecast API. The Weather Index does not use it.