Climate change in Passaic County, New Jersey
Since 1979, Passaic County, New Jersey has warmed 3.1°F, with 5 more days above 90°F, 8 more nights above 70°F and 7% less precipitation a year. Its climate in 1996–2025 is most like Essex County, NJ's was in 1951–1980.
- Average temperature: +3.1°F
- Summer highs (Jun–Aug): +2.1°F
- Winter lows (Dec–Feb): +5.0°F
- Precipitation: −7%
- Wettest day of the year: +7%
- Longest dry spell: +2 days
- Days above 90°F: +5 days
- Nights above 70°F: +8 days
- Freezing nights: −18 days
- Frost-free season: +31 days
- Muggy days: +10 days
- Summer heat index (Jun–Aug): +2.8°F
- Extreme fire-weather days: +19 days
- Snowfall: +26%
- Snowy days (1 inch or more): +1 days
Changes follow the trend line through every year from 1979 to 2025. Data: NOAA nClimGrid-Daily; humidity from gridMET, adjusted to airport observations.