CDMP FORTS DATA DOWNLOAD
Daily File Download
Daily data files contain quality-controlled temperature and precipitation data in one CSV file, while station metadata is provided in a separate CSV file. You can select stations by state or download daily data and metadata for all FORTS stations by clicking "DOWNLOAD ALL DAILY FILES".
When you initiate a data download, a contact information form will appear, and your data will begin downloading automatically to your computer.
Station | Files |
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CDMP FORTS Data Disclaimer
The 19th Century Weather Data (CDMP FORTS) is provided solely for research and informational purposes.
Users should note the following important points:
- Data Limitations: This dataset may present integration challenges with existing datasets due to differences in site locations, instrumentation, and observation schedules. The data are provided as-is, without further modification.
- Quality Control: Several quality control processes have been applied to these datasets, however not all stations have been quality controlled. Users are encouraged to review our Quality Control Status page for more information.
- Attribution: Users are asked to properly reference the Midwest Regional Climate Center (MRCC) in any reports or articles that utilize these data.
Using these data, you acknowledge these limitations and agree to use them responsibly, considering their historical context and the quality control measures implemented.
3297 File Download
The 3297 dataset provides quality-controlled weather data for individual stations, with each file stored in .DAT format and containing a range of meteorological variables. Users can select specific stations by state or download all 3297 files by clicking "DOWNLOAD ALL 3297 FILES".
The contents and structure of the 3297 files can be understood and interpreted using the DSI – 3297 CDMP COOP SUMMARY OF THE DAY FORTS documentation.
When you initiate a data download, a contact information form will appear, and your data will begin downloading automatically to your computer.
Station Name | Files |
---|
CDMP FORTS Data Disclaimer
The 19th Century Weather Data (CDMP FORTS) is provided solely for research and informational purposes.
Users should note the following important points:
- Data Limitations: This dataset may present integration challenges with existing datasets due to differences in site locations, instrumentation, and observation schedules. The data are provided as-is, without further modification.
- Quality Control: Several quality control processes have been applied to these datasets, however not all stations have been quality controlled. Users are encouraged to review our Quality Control Status page for more information.
- Attribution: Users are asked to properly reference the Midwest Regional Climate Center (MRCC) in any reports or articles that utilize these data.
Using these data, you acknowledge these limitations and agree to use them responsibly, considering their historical context and the quality control measures implemented.
3200 File Download
3200 files contain quality-controlled or non-quality-controlled weather data, depending on the station. These are the final working versions of each station file. Users can select specific stations by state or download all 3200 files by clicking Download ALL CDMP FORTS 3200 Files.
3200 files can be interpreted using the DSI – 3297 CDMP COOP SUMMARY OF THE DAY FORTS document.
When you initiate a data download, a contact information form will appear, and your data will begin downloading automatically to your computer.
Station Name | QC Status | Files |
---|
CDMP FORTS Data Disclaimer
The 19th Century Weather Data (CDMP FORTS) is provided solely for research and informational purposes.
Users should note the following important points:
- Data Limitations: This dataset may present integration challenges with existing datasets due to differences in site locations, instrumentation, and observation schedules. The data are provided as-is, without further modification.
- Quality Control: Several quality control processes have been applied to these datasets, however not all stations have been quality controlled. Users are encouraged to review our Quality Control Status page for more information.
- Attribution: Users are asked to properly reference the Midwest Regional Climate Center (MRCC) in any reports or articles that utilize these data.
Using these data, you acknowledge these limitations and agree to use them responsibly, considering their historical context and the quality control measures implemented.
Image Download
Image files are available from the National Centers for Environmental Information (NCEI) Common Access portal (search keyword FORTS, or view directly at https://www.ncei.noaa.gov/access/search/data-search/forts-publication).
Below is an example image from Mt Washington, NH.

CDMP FORTS Data Disclaimer
The 19th Century Weather Data (CDMP FORTS) is provided solely for research and informational purposes.
Users should note the following important points:
- Data Limitations: This dataset may present integration challenges with existing datasets due to differences in site locations, instrumentation, and observation schedules. The data are provided as-is, without further modification.
- Quality Control: Several quality control processes have been applied to these datasets, however not all stations have been quality controlled. Users are encouraged to review our Quality Control Status page for more information.
- Attribution: Users are asked to properly reference the Midwest Regional Climate Center (MRCC) in any reports or articles that utilize these data.
Using these data, you acknowledge these limitations and agree to use them responsibly, considering their historical context and the quality control measures implemented.