Where on the web can I go to see daily records for high and low
temperatures, as well as daily rainfall, for Portland, Maine, USA?  I
am mainly interested in data from this year, 2005, but would also be
interested in data from recent years.

Hello Newhorizons123,

Weather Underground provides current and historic weather data for Portland, Maine.

Here is the current weather.
http://english.wunderground.com/cgi-bin/findweather/getForecast?query=Portland%2C+Maine+


To Find Historic Weather Data, scroll down to History & Almanac

Enter the month, day and year of your interest and press GO for
detailed history and climate for that day.


For example:

Here is the weather history for Portland, Maine on Monday, July 25, 2005
http://english.wunderground.com/history/airport/KPWM/2005/7/25/DailyHistory.html?req_city=NA&req_state=NA&req_statename=NA


Scroll down to the bottom of the page at the following link to see
historic weather data for the whole month of July 2005.
http://english.wunderground.com/history/airport/KPWM/2005/7/25/MonthlyHistory.html


History for Portland, Maine on Thursday, January 16, 2003
http://english.wunderground.com/history/airport/KPWM/2003/1/16/DailyHistory.html?req_city=NA&req_state=NA&req_statename=NA


Historic weather data for the whole month of January 2003.
http://english.wunderground.com/history/airport/KPWM/2003/1/16/MonthlyHistory.html?req_city=NA&req_state=NA&req_statename=NA


History for Portland, Maine on Tuesday, November 9, 1999
http://english.wunderground.com/history/airport/KPWM/1999/11/9/DailyHistory.html?req_city=NA&req_state=NA&req_statename=NA


Custom Date Query - Choose two dates less than or equal to one year apart 
Example: November 9, 2004 to November 9, 2005
http://english.wunderground.com/history/airport/KPWM/2004/11/9/CustomHistory.html?dayend=9&monthend=11&yearend=2005&req_city=NA&req_state=NA&req_statename=NA

Search criteria: 
Weather Underground
http://english.wunderground.com/


I hope the information provided is helpful!

Best regards,
Bobbie7

Perfect answer.  Exactly what I was looking for.  Thanks.

Thank you very  much for the five star rating and nice tip!
--Bobbie7