Bronx County Climate
Bronx County, New York
Avg Annual Temp
55.8°F
Annual Precip
49.9"
Annual Snowfall
—
Extreme Heat Days
22.5
days >= 90°F/yr
Monthly Temperature
Precipitation Calendar
Seasonal Overview
National Comparison
Climate Profile
About Bronx County Weather
An Urban Heat Island in the Bronx
The Bronx is warmer than the national average, posting an annual mean temperature of 55.8°F. This urban environment creates a microclimate that is much milder than the rural Northeast.
Far Warmer Than the Empire State Average
The Bronx is significantly warmer than the state average of 47.4°F, a difference of over eight degrees. It represents the warmer, coastal tail of New York's diverse climate spectrum.
Warmer and Wetter Than Upstate Peers
With 49.9 inches of annual precipitation, the Bronx is much wetter than Chemung County’s 35.3 inches. Its 23 extreme heat days far outpace any of the other counties in this regional analysis.
Intense Summer Heat and Mild Winters
July averages a warm 78.3°F, with 23 days a year hitting 90°F or higher. Winters are relatively mild for New York, with a January average of 33.5°F, though specific snowfall data is currently unavailable.
Prioritize Cooling and Storm Prep
High-efficiency air conditioning is a must for the frequent 90°F summer days. Residents should also prepare for heavy rainfall, as the county receives nearly 50 inches of precipitation annually.
Frequently Asked Questions
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Data source: NOAA National Centers for Environmental Information (NCEI), U.S. Climate Normals 1991-2020.
Climate normals are 30-year averages of weather variables computed from 1991 to 2020. Station data is aggregated to county level using spatial averaging. Data is informational only — not a substitute for official National Weather Service forecasts or emergency weather warnings.