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Back-to-Back Pacific Storms to Impact the West Coast; Heavy Snow in the Central Appalachians

Back-to-back powerful Pacific storm systems to impact the Pacific Northwest and northern California through the end of this week with heavy rain, flooding, strong winds, and higher elevation mountain snow. A strong, long-duration atmospheric river will accompany the Pacific storms, bringing excessive rainfall and flash flooding to southwest Oregon and northwest California through the week. Read More >

State College, PA

Weather Forecast Office

Water and Precipitation Resources

Weather.gov > State College, PA > Water and Precipitation Resources
  River
Stages		 Drought Snowfall
Info		 Historical
Floods		 Flood
Safety		  
 
 Precipitation Departures from Normal

 
 


CLICK HERE FOR
LATEST STATEMENT

See All Drought Information Statements (PDFs)

Drought Declarations (as of 11/14/2024) 
(Courtesy PA Department of Environmental Protection (DEP))

 

Drought Map of Pennsylvania

 

Common Questions:

 

Are we below normal for precipitation?
 

See: Departure from Normal Maps
(from the MARFC)

What are streamflows like right now?


See: USGS = Daily Streamflow Map

What are well levels like right now?


See: USGS = PA GroundWater Well Levels.

How much precipitation have we been getting the last few years?

 

Generate plots: Statewide Precipitation (or Temperature) trends

 

How much precipitation do we normally receive in a year/month?

 

See: Maps of Normal Annual and Monthly Precipitation in PA

  

Select from above options to open a map in the Main Window

Normal Annual PA Precip (inches)

Useful links:
 
 

Recent Snowfall
Public Reports (as appropriate)
When we obtain reports from across the region - whether from spotters, the general public, or solicited information from people like PennDOT or Emergency Personnel - we quality-check the data.  We then try to issue Public Information Statements that summarize this information. Latest 24-hr Snowfall Report Map MapOfReports example
Co-Operative (CoOp) Station Observations (Daily)
  Once per day (usually around 7 am) more than 100 people across Central Pennsylvania send the NWS an observation covering the past 24 hours.  Most report rain and snow totals. See the daily data from the CoOperative Observers Map representing CoOp station locations

Seasonal Totals

Select Season:

seasonal snow map

TIP: right-click on image and choose "View Image" to see the map at full size.

 

Seasonal Normals

What is normal (average) for my location?
 
Check the map below, which lists the Average Annual Snowfall for Pennsylvania. Then, if you need further/more-detailed (monthly averages) information, check the Climate Database for a location near you.

Select:

  1. "Monthly avgs/totals" from Col #1 (Product)
  2. Choose a location near to you from Col #2 (Location)
  3. Select "Snowfall" from Col #3 (Variable)
  4. Select "1981-2010" from Col#4 (Year)
  5. Hit "GO!"

Average Annual Snowfall for Pennsylvania

Average Annual Snowfall for Pennsylvania, contours

Long Term Seasonal Averages

Location Long-Term Average 30 Year Average
1991-2020
Harrisburg 33.2
since 1889		 29.9
State College 45.9
since 1893		 43.8
Williamsport 38.8
since 1895		 35.8

 

 

Average Date of First Snowfall in Central PA

Date of Average Frist Snowfall

 

Long-Term Station Snowfall Totals
The following charts show the individual winter season snowfalls since 1980-1981. Continuous weather records have been kept since 1888 in Harrisburg, and since 1895 in both Williamsport and State College. Scroll down to see the larger images.
Harrisburg, PA Site Snowfall for winter seasons. State College, PA Co-Operative Observation Site Snowfall for winter seasons. Williamsport, PA Site Snowfall for winter seasons.


Harrisburg, PA Site Snowfall for winter seasons.
Harrisburg, PA Site Snowfall for recent winter seasons.


State College, PA Co-Operative Observation Site Snowfall for winter seasons.
State College, PA Co-Operative Observation Site Snowfall for recent winter seasons.


Williamsport, PA Site Snowfall for winter seasons.
Williamsport, PA Site Snowfall for recent winter seasons.


Laurel Summit, PA Co-Operative Observation Site Snowfall for winter seasons.
Laurel Summit, PA Co-Operative Observation Site Snowfall for recent winter seasons.
 
 

HISTORICAL FLOODS

Flood Climatology (How normal is flooding?):
Link to Flood Climatology Info from the Middle Atlantic River Forecast Center (MARFC)

  
 

https://www.weather.gov/safety/flood

 

https://www.weather.gov/safety/flood

  

 

 

 

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