Weather

Multipurpose

Jim Green's Weather & Climate Site - many links to weather info for PA and the Northeast.

Penn State Climatologist Home Page - use heading across top of page to find desired info. 

National Climate Data Center - archived climate data. 

The PA State Climatologist - Min/Max Daily T, Cloudy Days, Precipitation, Snowfall, Dewpoint, Humidity, Heating/Cooling Days, Growing Season (Length, First/Last Freeze Dates). 

The Bucknell Weather Station - Great charts when current data posted.

Drought

Drought info from PA Dept of Environmental Protection:

Drought Management in PA

Drought Emergency FAQ

Managing Water Use During a Drought Emergency

How to garden during drought conditions - PSU Fact Sheet

Precipitation

Hydrometeorological Prediction Center - Includes predicitons as well as storm summary precipitation under latest storm summary; scroll down links to read total precipitation by state.

CoCoRaHS - daily precipitation in most of PA, MD, and NJ by the Community Collaborative Rain, Hail & Snow Network.

AFWS in PA - covers rainfall amounts every 15 minutes in many sections of PA by the Automated Flood Warning Systems. 

NOAA  - PA current and past precipitation. Detailed state map under Historical Precip Maps for PA, choose a specific date or month.

WaterWatch - daily water levels in PA by the USGS (U.S. Geological Survey).

Garden Hotline