Weather in Bronx, New York
Roses open along the stoops. Day 59 of spring. Read this microseason across nine climate regions →
- TodayMay 16Overcast—80°51°
- SundayMay 17Overcast—91°61°
- MondayMay 18Light Drizzle—78°67°
- TuesdayMay 19Drizzle13%93°65°
- WednesdayMay 20Drizzle68%94°65°
- ThursdayMay 21Overcast40%73°56°
- FridayMay 22Light Drizzle18%64°50°
- PM 2.5
- 12.4 μg/m³
- PM 10
- 14.0 μg/m³
- NO₂
- 29.4 μg/m³
- Ozone
- 91.0 μg/m³
- UV Index
- 0.0 Low
When the dew is on the grass, rain will never come to pass.
- Moonrise
- 9:40 AM
- Moonset
- 12:34 AM
- In sign
- ♉︎ Taurus
Roses open along the stoops
Bronx at a glance
- Today vs. normal: 70°F — typical for the season
- Last frost: April 21 (climatological average for this latitude)
- Microseason: 28 of 72, May 16–20
- Planting window: Direct sow okra, melons, and southern peas. Thin carrot rows.
Right now in the garden
Warm-season window is open
As of May 17, the last spring frost has passed for most years. Transplant tomatoes, peppers, eggplants, basil, and cucurbits (cucumbers, squash, melons) now. Direct-sow beans and corn into warm soil.
Planting calendar
| Month | Plant | Harvest |
|---|---|---|
| January | — | — |
| February | — | — |
| March | — | — |
| April | lettuce, peas, spinach, radishes | — |
| May | lettuce, peas, spinach, radishes, tomatoes, peppers, beans, squash | lettuce, peas, radishes |
| June | tomatoes, peppers, beans, squash | lettuce, peas, radishes |
| July | tomatoes, peppers, beans, squash | tomatoes, beans, summer squash |
| August | — | tomatoes, beans, summer squash |
| September | fall brassicas, garlic (overwinter), carrots | tomatoes, beans, summer squash |
| October | fall brassicas, garlic (overwinter), carrots | winter squash, tomatoes (last) |
| November | — | — |
| December | — | — |
A year in weather
July brings Bronx's warmest temperatures (~79°F mean) while January delivers the coldest (~34°F). August sees peak rainfall at 4.4 inches, with February recording the lowest at 2.9 inches.
| Month | Mean temp | Precip | Rainy days |
|---|---|---|---|
| January | 34° | 3.3″ | 6 |
| February | 36° | 2.9″ | 6 |
| March | 43° | 4.0″ | 7 |
| April | 54° | 3.9″ | 6 |
| May | 64° | 3.6″ | 7 |
| June | 73° | 4.0″ | 7 |
| July | 79° | 4.3″ | 6 |
| August | 78° | 4.4″ | 6 |
| September | 71° | 3.9″ | 6 |
| October | 60° | 3.8″ | 5 |
| November | 49° | 3.1″ | 6 |
| December | 40° | 4.1″ | 7 |
Regional context
Bronx falls within a warm-summer humid continental climate region that extends across nearby cities. This climate group shares similar temperature ranges, seasonal patterns, and growing conditions.
Similar climates: New York, NY, Brooklyn, NY, Queens, NY, Manhattan, NY, Buffalo, NY.
Naturalist notes
Peak cherry blossom blooms occur throughout Bronx parks during late April, coinciding with the area's last spring frost period.
American robins begin their dawn chorus in early May, signaling the transition from spring migration to nesting season.
Frequently asked
- When does it freeze in Bronx?
- Bronx typically sees its last spring frost around mid-April, with the first fall frost returning around mid-November.
- What is the rainy season in Bronx?
- August stands as the wettest month with about 4.4 inches of rain on average, while the city receives roughly 45 inches annually.
- What is the warmest month in Bronx?
- July typically brings the warmest weather, averaging about 79°F.
- What is the coldest month in Bronx?
- January typically delivers the coldest temperatures, averaging about 34°F.
- When can I start a vegetable garden in Bronx?
- Cool-season crops like peas and lettuce can be planted around the last spring frost in mid-April, while warm-season crops such as tomatoes and peppers should wait 1–2 weeks after.
- How many rainy days does Bronx get?
- Bronx experiences about 75 rainy days per year on average.
- What hardiness zone is Bronx?
- Bronx's USDA hardiness zone depends on its lowest average winter temperature; the USDA's online lookup tool can provide the current zone designation using the city ZIP code.
Climate
Bronx, New York experiences a warm-summer humid continental climate zone. January temperatures hover near 34°F while July averages 79°F, creating a 45°F seasonal swing.
Throughout the year, Bronx receives about 45 inches of precipitation distributed across roughly 75 rainy days.
Weather patterns follow the city's latitude (40.9°N), proximity to large water bodies, and elevation. These factors determine what grows here, when frost occurs, and daily weather conditions.