Recent Data | F6's | Records | Normals/Averages | Sunrise/set info | Growing Season
Narrative Summaries | Co-Operative Observer Data

NEW!! WINTER 2007-2008 CLIMATE SUMMARIES (NARRATIVE TEXT):
Harrisburg Winter 2007-2008 Summary
Williamsport Winter 2007-2008 Summary

Recent Daily/Monthly Data:
To find the most recent daily and monthly data for Harrisburg and Williamsport (as well as some of the co-operative observing stations), please go to our
comprehensive Climate Data Web Page.
Most of the info you want will be found there.
See this PDF document that helps to explain where to find the data.

Past Monthly Summaries (NWS Preliminary Form F6)
A day by day breakdown of the weather for past months.

The past 5 years of F6 sheets are at this Link.

Preliminary Monthly Data for 1997-2003 Choose: Harrisburg Williamsport January February March April May June July August September October November December 1997 1998 1999 2000 2001 2002 2003 2004 2005 2006 2007 2008

How to decode/read these forms

Climate Graphs

We now have current and historical graphs of daily max, min, precipitation, and snowfall in relation to the normals for Harrisburg and Williamsport. These graphs are updated daily and can be found on our Climate Graphs Page.

For detailed and in-depth climate information for the Commonwealth of PA, see the...
Pennsylvania State Climatologist Home Page.

Local Records:
See the TEXT List of All IPT and MDT Daily Extreme Max and Min Temp Records (experimental)
See the TEXT List of All IPT and MDT Daily Max Precip Records (experimental)
See the TEXT List of All IPT and MDT Daily Max Snowfall Records (experimental)

Local Normals:
See the TEXT List of All IPT and MDT Daily Normals (experimental)

Get Daily Normals (output to a new/separate page):
All Maxes Means Mins Precip Snow HDD CDD	One Day One Month All Year Both Sites Harrisburg Williamsport January February March April May June July August September October November December July 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 09 Select Ouput Type:

Daily Normals for One Day for Both Sites. Date Chosen: July 9th
Town	Date MM-DD	Normal Max	Normal Mean	Normal Min	Normal Precip	Normal Snowfall	Normal HDDs	Normal CDDs
Williamsport	07-09	83	72	62	0.14	0	0	8
Harrisburg	07-09	86	76	66	0.11	0	0	11

CLIM81: Monthly Station Normals of Temperature, Precipitation, and Heating and Cooling Degree Days (1971 - 2000) for all of Pennsylvania (pdf document, 1.28Mb).
Pennsylvania Wind Rose Downloads (gifs) from NCDC (ftp site).

Sunrise Sunset Times:
See the TEXT List of Sunrise and Sunset Times for 2008 for Williamsport, PA (from USNO)
See the TEXT List of Sunrise and Sunset Times for 2008 for Harrisburg, PA (from USNO)

Get Sunrise/Sunset Times (output to a new/separate page):
Sunrise Times Sunset Times	One Day One Month All Year Both Sites Harrisburg Williamsport 2008 2009 2010 2011 2012 2013 2014 2008 January February March April May June July August September October November December July 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 09 Select Output type:

Town	Month	Day	Sunrise	Sunset	Time Zone
Williamsport	July	09	5:44 AM	8:43 PM	EDT
Harrisburg	July	09	5:47 AM	8:39 PM	EDT

Local Growing Season (Frost & Freeze Dates):

The BEGINNING of the growing season is set by the average date of the last freeze in spring, and normally happens during very late April to mid May in Central PA.
The NWS will then issue Frost Advisories and Freeze Warnings, when appropriate, until the end of the growing season which is the ACTUAL first (widespread) freeze in the autumn. See a map of the Average Date of the First Freeze in Autumn.

Local Narrative Text Climate Summaries:

2007-2008 Winter Summaries for Harrisburg and Williamsport
2007 Yearly Summaries for Harrisburg and Williamsport.
2007 Summer-Summaries for Harrisburg and Williamsport.
2006 Year-end Summaries for Harrisburg and Williamsport.
2006 Summer-Summaries for Harrisburg and Williamsport.
2005 Year-end Summaries for Harrisburg and Williamsport.
2005 Summer-Summaries for Harrisburg and Williamsport.
Winter 2004-2005 Summaries for both Harrisburg and Williamsport.
2004 Year-end Summary for both Harrisburg and Williamsport.
2003 Year-end Summaries for Harrisburg and Williamsport.
2002 Year-end Summaries for Harrisburg and Williamsport.
2001 Year-end Summaries for Harrisburg and Williamsport.
2000 Year-end Summaries for Harrisburg and Williamsport.
1999 Year-end Summaries for Harrisburg and Williamsport.
1998 Year-end Summaries for Harrisburg and Williamsport.

Co-Operative Observations (48 local sites which report conditions once every day):
Text table of Central PA Cooperative Observations (HYDCTP).

Daily Climate Summary for STCP1 - The CoOperative Observation Station at State College, PA posted by the observers themselves (at the PSU Meteorology Department).
PSU Weather Station Link (with searchable Daily Climate Summaries).

All Co-Operative Observer Maps (produced daily):
Precipitation Bargraphs,
Temperature Graphs.

Snowfall Tidbits:
Seasonal Co-Op Snowfall Maps

Flooding
Flood Climatology for Susquehanna Basins

Severe Events:
Searchable "Storm Data" database from NCDC (All severe events from 1950-2007)
Past Severe Weather Events since 1993 in Central PA
Central PA Weather Events/Feature Pages

Miscellaneous Links:
Climate Outreach Toolkit
(Past) Daily Weather Maps On-line !! (from NWS HPC)