Pottsville-area historical earthquake activity is near Pennsylvania state average. It is 86% smaller than the overall U.S. average. On 1/16/1994 at 01:49:16, a magnitude 4.6 (4.6 MB, 4.6 LG, Depth: 3.1 mi, Class: Light, Intensity: IV-V) earthquake occurred 26.1 miles away from the city center.
The highest monthly average temperature in Carlsbad for August is 70 degrees. The lowest monthly average temperature in Carlsbad for December is 52 degrees. The most monthly precipitation in Carlsbad occurs in February with 3 inches. The air quality index in Carlsbad is 22% worse than the national average. The pollution index in Carlsbad is 798% worse than the national average.
1 Average monthly temperatures vary by 3.95 Â°C (7.1Â°F). 2  This indicates that the continentality type is hyperoceanic, subtype truly hyperoceanic. 3  In the winter time records indicate temperatures by day reach 19.5Â°C (67.1Â°F) on average falling to 0.8Â°C (33.4Â°F) overnight. During summer average high temperatures are 19.5Â°C (67Â°F) and average low temperatures are 6.6Â°C (43.8Â°F). 2  Come autumn/ fall temperatures decrease achieving average highs of 19.5Â°C (67.1Â°F) during the day and lows of 4.7Â°C (40.5Â°F) generally shortly after sunrise.