Exteme events

Extreme events

NOAA maintains a "Long-term Extremes for America" web service that is very easy to use for querying for historic extreme events at National Weather Service sites.

Another good place to start investigating extreme events for Montana would be NCDC's extreme/severe weather data. Here are some links that might be useful:

http://www.ncdc.noaa.gov/climate-information/extreme-events

http://ncdc.noaa.gov/data-access/severe-weather

http://www.ncdc.noaa.gov/oa/climate/severeweather/extremes.html