Climate change in Lebanon County, Pennsylvania
Since 1979, Lebanon County, Pennsylvania has warmed 3.3°F, with 3 more days above 90°F, 10 more nights above 70°F and 17% more precipitation a year. Its climate in 1996–2025 is most like Monmouth County, NJ's was in 1951–1980.
- Average temperature: +3.3°F
- Summer highs (Jun–Aug): +2.0°F
- Winter lows (Dec–Feb): +4.2°F
- Precipitation: +17%
- Wettest day of the year: +40%
- Longest dry spell: +1 days
- Days above 90°F: +3 days
- Nights above 70°F: +10 days
- Freezing nights: −16 days
- Frost-free season: +19 days
- Muggy days: +10 days
- Summer heat index (Jun–Aug): +2.5°F
- Extreme fire-weather days: +11 days
- Snowfall: −6%
- Snowy days (1 inch or more): −2 days
Changes follow the trend line through every year from 1979 to 2025. Data: NOAA nClimGrid-Daily; humidity from gridMET, adjusted to airport observations.