Brooklyn Temperatures: Averages by Month
The numbers here tell you how hot and cold the weather usually is in Brooklyn, New York City during each month of the year.
The average high and low temperatures are listed below monthly and annually for the NYC borough on Long Island, in both degrees Fahrenheit and Celsius.
Maximums and minimums are only part of the temperature picture. To fill in the rest, there's information on how many days a month get above or below a given temperature.
To find out how often it rises over 70, 80 or 90 °F each month in Brooklyn, scroll down farther. There are also monthly and yearly counts of days with cold weather.
All the numbers are long-term historical averages based on climate data gathered from 1991 to 2020.
| High °F | Low °F | High °C | Low °C | |
|---|---|---|---|---|
| 40 | 28 | January | 4 | -3 |
| 42 | 29 | February | 6 | -2 |
| 50 | 35 | March | 10 | 2 |
| 61 | 45 | April | 16 | 7 |
| 71 | 54 | May | 21 | 12 |
| 79 | 64 | June | 26 | 18 |
| 85 | 70 | July | 29 | 21 |
| 83 | 69 | August | 29 | 21 |
| 77 | 62 | September | 25 | 17 |
| 65 | 51 | October | 18 | 11 |
| 54 | 41 | November | 12 | 5 |
| 45 | 33 | December | 7 | 1 |
| 63 | 49 | Year | 17 | 9 |
Days of Hot Weather in Brooklyn
Most summer days in Brooklyn heat up into the 80s Fahrenheit and several top 90 degrees. Temperatures of 100 °F (38 °C) or more are rare here, happening only about once a decade.
| 70 °F 21 °C |
80 °F 27 °C |
90 °F 32 °C | |
|---|---|---|---|
| January | 0 | 0 | 0 |
| February | 0 | 0 | 0 |
| March | 1 | 0 | 0 |
| April | 5 | 1 | 0 |
| May | 14 | 5 | 1 |
| June | 27 | 16 | 3 |
| July | 31 | 24 | 6 |
| August | 31 | 24 | 4 |
| September | 25 | 10 | 1 |
| October | 9 | 1 | 0 |
| November | 1 | 0 | 0 |
| December | 0 | 0 | 0 |
| Year | 143 | 80 | 14 |
How Often Brooklyn Has Cold Temperatures
Brooklyn typically has 66 frosty nights a year that show up from November until April. The two or three coldest winter nights of the year drop down to between 0 and 10 degrees (-18 to -12 °C).
On an average of 15 days annually the thermometer never rises above freezing. Days that chilly usually occur during December, January and February.
| 20 °F -8 °C |
32 °F 0 °C | |
|---|---|---|
| January | 7 | 20 |
| February | 5 | 18 |
| March | 2 | 11 |
| April | 0 | 1 |
| May | 0 | 0 |
| June | 0 | 0 |
| July | 0 | 0 |
| August | 0 | 0 |
| September | 0 | 0 |
| October | 0 | 0 |
| November | 0 | 3 |
| December | 3 | 13 |
| Year | 16 | 66 |
Reference
NOAA National Centers for Environmental Information (NCEI). Climate Normals.