Bronx, New York climate: Climate normals at a NOAA weather station
Bronx's normal year runs from 27°F January nights to 86°F July afternoons, with 49.9 inches of precipitation a year. (NOAA 1991-2020 normals)
In metric: a yearly mean of 13.2°C, January lows of −3°C, July highs of 30°C, 1,266 mm of precipitation a year.
- NOAA stationBronx
- Station IDUSC00300961
- Location40.84°N 73.85°W
- Elevation39 ft (12 m)
On October 23, the normal high in Bronx is 63°F and the normal low 48°F, and the chance of measurable rain or snow is 34%.
Normals describe a typical year at the station, not a forecast. The National Weather Service forecast for Bronx.
- Jan 40° 27°
- Feb 43° 29°
- Mar 50° 35°
- Apr 61° 44°
- May 72° 55°
- Jun 81° 64°
- Jul 86° 71°
- Aug 84° 69°
- Sep 77° 62°
- Oct 66° 51°
- Nov 54° 41°
- Dec 45° 33°
Each month: normal high (large) and low, °F. Fill: the month's normal mean, colder blue to hotter red.
What is the weather like at Bronx each month?
July is the warmest month, with normal highs of 86°F; January the coldest, with normal lows of 27°F. The most precipitation falls in August (4.82 in), the least in February (3.19 in).
Each month has its own page with the day-by-day normals, the month's records and its recent years:
| Month | High | Low | Mean | Precip. | Wet days | 90°F days | Freezing nights | Daylight |
|---|---|---|---|---|---|---|---|---|
| January | 40°F | 27°F | 33.5°F | 3.74 | 11 | <1 | 20 | 9 h 30 min |
| February | 43°F | 29°F | 35.6°F | 3.19 | 9 | <1 | 20 | 10 h 40 min |
| March | 50°F | 35°F | 42.4°F | 4.37 | 11 | <1 | 10 | 11 h 50 min |
| April | 61°F | 44°F | 52.9°F | 3.95 | 11 | 1 | 1 | 13 h 20 min |
| May | 72°F | 55°F | 63.4°F | 4.06 | 12 | 1 | <1 | 14 h 30 min |
| June | 81°F | 64°F | 72.6°F | 4.55 | 13 | 5 | <1 | 15 h 10 min |
| July | 86°F | 71°F | 78.3°F | 4.37 | 10 | 9 | <1 | 14 h 50 min |
| August | 84°F | 69°F | 76.6°F | 4.82 | 11 | 6 | <1 | 13 h 50 min |
| September | 77°F | 62°F | 69.6°F | 4.55 | 9 | 1 | <1 | 12 h 30 min |
| October | 66°F | 51°F | 58.2°F | 4.13 | 11 | <1 | <1 | 11 h 10 min |
| November | 54°F | 41°F | 47.7°F | 3.45 | 10 | <1 | 2 | 10 h |
| December | 45°F | 33°F | 38.9°F | 4.67 | 11 | <1 | 15 | 9 h 20 min |
| Year (annual) | 63°F | 48°F | 55.8°F | 49.85 | 128 | 23 | 67 |
The same normals in °C and millimetres
| Month | High | Low | Mean | Precip. |
|---|---|---|---|---|
| January | 4°C | −3°C | 0.8°C | 95 mm |
| February | 6°C | −2°C | 2.0°C | 81 mm |
| March | 10°C | 1°C | 5.8°C | 111 mm |
| April | 16°C | 7°C | 11.6°C | 100 mm |
| May | 22°C | 13°C | 17.4°C | 103 mm |
| June | 27°C | 18°C | 22.6°C | 116 mm |
| July | 30°C | 21°C | 25.7°C | 111 mm |
| August | 29°C | 21°C | 24.8°C | 122 mm |
| September | 25°C | 17°C | 20.9°C | 116 mm |
| October | 19°C | 10°C | 14.6°C | 105 mm |
| November | 12°C | 5°C | 8.7°C | 88 mm |
| December | 7°C | 1°C | 3.8°C | 119 mm |
NOAA publishes no 1991-2020 snowfall normal for this station. The nearest record that keeps one, New York Laguardia Airport (4 miles away), gets 30 inches of snow in a normal year; elevation and distance can change that.
Source: NOAA NCEI 1991-2020 monthly normals, station USC00300961; annual normals. Wet days: 0.01 inch or more; 90°F days and freezing nights: NOAA's day counts. Daylight: sunrise to sunset on the 15th, computed from the latitude.
Which months are mildest at Bronx?
Normal highs sit between 65°F and 85°F in May, June, August, September and October. Of those, September has the fewest days with rain (9).
That is a measurement, not a recommendation: it counts the months whose normal afternoon high sits between 65°F and 85°F, where a light layer is enough by day.
Source: NOAA NCEI 1991-2020 monthly normals, station USC00300961.
When is the last frost at Bronx?
In Bronx, the last spring frost (32°F) comes after April 1 in half of years and after April 12 in one year in ten; the first autumn frost comes before November 16 in half of years and before November 2 in one year in ten.
Frost-free in half of yearsFrost in 1 to 9 years out of 10Frost most years
- Last spring frost, half of years after
- April 11 year in 10 after April 12; 9 in 10 after March 19
- First autumn frost, half of years before
- November 161 year in 10 before November 2; 9 in 10 before December 4
NOAA puts the median frost-free season at 230 days, and the season without a hard freeze (28°F) at 252 days.
A hard freeze (28°F) comes after March 23 in half of springs and before November 30 in half of autumns.
The USDA's 2023 Plant Hardiness Zone Map puts Bronx in zone 7b in ZIP code 10462, the nearest ZIP area.
Frost dates for every NOAA station in New York · Frost dates by ZIP code
Source: NOAA NCEI 1991-2020 annual normals (frost probabilities), station USC00300961; USDA 2023 Plant Hardiness Zone Map, ZIP listings: PRISM Group, Oregon State University, https://prism.oregonstate.edu, accessed October 8, 2026. A 10% date means one year in ten has a frost after it in spring or before it in autumn.
How hot and how cold does it get at Bronx?
In a normal year in Bronx, 23 days a year reach 90°F (1 of them 100°F or more), 67 nights fall to 32°F or colder and 128 days bring measurable precipitation.
- Days at 90°F or more
- 23a normal year
- Days at 100°F or more
- 1a normal year
- Nights at 32°F or colder
- 67a normal year
- Days that stay below freezing
- 15high of 32°F or less
- Days with 0.01 inch of precipitation
- 128a normal year
Source: NOAA NCEI 1991-2020 annual normals, station USC00300961.
How sunny is it at Bronx?
Over a year 75% of the sunlight that would reach the ground under clear skies gets through the clouds at Bronx, 4.0 kWh per square metre a day. July is the sunniest month (82%) and December the cloudiest (66%).
| Month | Share of clear-sky sunshine | Sunshine, kWh/m² a day |
|---|---|---|
| January | 67% | 1.9 |
| February | 70% | 2.8 |
| March | 71% | 3.8 |
| April | 73% | 5.0 |
| May | 73% | 5.6 |
| June | 78% | 6.1 |
| July | 82% | 6.2 |
| August | 81% | 5.5 |
| September | 79% | 4.5 |
| October | 72% | 3.0 |
| November | 72% | 2.1 |
| December | 66% | 1.6 |
Source: NASA POWER solar climatology, 2001-2020 (CERES SYN1deg). Satellite-based, for the 1-degree cell (about 100 km across) around the station, so it describes the area rather than the airport.
How many heating and cooling degree days does Bronx record?
A normal year at Bronx brings 4,583 heating degree days, 15% fewer than the median U.S. place (5,373), and 1,278 cooling degree days, 41% more than the median (908). Six months need 300 or more heating degree days, a monthly mean of about 55°F or colder. For gardens and crops, NOAA counts 3,914 growing degree days a year above 50°F.
| Month | Heating | Cooling |
|---|---|---|
| January | 976 | 0 |
| February | 822 | 0 |
| March | 699 | 0 |
| April | 375 | 12 |
| May | 113 | 65 |
| June | 13 | 241 |
| July | 0 | 414 |
| August | 1 | 361 |
| September | 24 | 162 |
| October | 232 | 23 |
| November | 520 | 1 |
| December | 808 | 0 |
| Year (annual) | 4,583 | 1,278 |
Source: NOAA NCEI 1991-2020 monthly normals, station USC00300961. A degree day is one degree of a day's mean temperature below 65°F (heating) or above it (cooling); utilities use them to estimate energy use.
How does Bronx's climate compare?
Bronx is warmer than 130 of the 131 places with their own NOAA record in New York, and wetter than 104. Across the 7,247 U.S. stations with normals, its annual mean of 55.8°F is warmer than 63%.
In the Köppen classification computed from these normals, Bronx is Cfa: temperate, no dry season, hot summer. What the classes mean.
Places with the most similar year elsewhere
Measured month by month on the normal high, low and precipitation, among places of 20,000 or more people in other states:
Source: NOAA NCEI 1991-2020 normals for every station PlainClimate covers. Similarity: the root-mean-square difference of the 36 monthly figures, precipitation weighted so an inch counts like 6°F.
Which places near Bronx share this climate record?
13 places have no NOAA station with 1991-2020 normals of their own, and this station is the nearest full record. A place's own climate can differ from these figures, by several degrees where it sits much higher or lower than the station, nearer the coast, or inside a large city's heat; for the larger places the next nearest records are named with their yearly mean, so the spread around them is visible, and places of 50,000 or more have their own page with NOAA's gridded normals.
- Englewood, NJ30,221 people · 7 mi NW
- Bergenfield, NJ28,921 people · 10 mi NW
- Tenafly, NJ15,455 people · 8 mi NW
- Great Neck, NY11,075 people · 7 mi E
- Manorhaven, NY6,997 people · 7 mi E
- Kings Point, NY5,680 people · 6 mi E
- Englewood Cliffs, NJ5,443 people · 6 mi NW
- Port Washington North, NY3,146 people · 8 mi E
- Great Neck Estates, NY3,117 people · 7 mi SE
- Sands Point, NY2,743 people · 8 mi E
- Saddle Rock, NY1,005 people · 6 mi SE
- Harbor Hills, NY520 people · 6 mi SE
- Saddle Rock Estates, NY351 people · 6 mi SE
Source: Census Bureau 2024 Gazetteer (place centers) and Vintage 2024 population estimates. Distance and direction from the station to each place's center.
Questions about Bronx's climate
What is the coldest month at Bronx?
January, with a normal high of 40°F and a normal low of 27°F. The warmest is July (86°F by day, 71°F at night).
Does it snow at Bronx?
Yes. NOAA publishes no 1991-2020 snowfall normal for the station; the nearest record that keeps one, New York Laguardia Airport (4 miles away), records 30 inches of snow in a normal year.
What is the rainiest month at Bronx?
August, with 4.82 in of precipitation in a normal year; the driest is February with 3.19 in.
What plant hardiness zone is Bronx in?
The USDA's 2023 map puts Bronx in zone 7b in ZIP code 10462, the nearest ZIP area.
How late can frost come at Bronx?
In half of years the last 32°F night comes after April 1; in one year in ten it comes after April 12. Waiting until April 12 leaves about a one-in-ten chance of a later frost.
Nearby and next
- Bronx in OctoberThis month day by day, its records and recent years
- New York climateThe statewide normals and every place in the state
- New York, NY7 miles from this station, 55.8°F a year
- Teterboro, NJ11 miles from this station, 55.4°F a year
- Dobbs Ferry, NY12 miles from this station, 53.4°F a year
- Mineola, NY14 miles from this station, 55.5°F a year
- Compare two placesMonth by month, side by side
Download these normals (CSV) · JSON · How these figures are made