PLEASE NOTE: as of July 1, 2021 please request certified data from the new MRCC office at Puedue University. They may be contacted at or 765-494-9837.

Certification of Climate Records

The Midwestern Regional Climate Center (MRCC) serves as a regional data archiving facility in cooperation with the National Centers for Environmental Information (NCEI) and other federal, state and local authorities. As such, the MRCC can certify copies of climate records archived at the MRCC. As an archiving facility, the only fact the MRCC can attest to is that exact duplicates of climatic records on file at this center have been provided to those that requested such data.* This is accomplished by attaching a cover letter to the climate data signed by a climatologist stating the authenticity of the data provided.

The MRCC certification is similar to the certification provided by NCEI.  The MRCC is not a federal agency under the U.S. Department of Commerce and therefore cannot certify documents using the U.S. Department of Commerce seal as provided by NCEI. Typically, the MRCC certification is adequate to submit climate data records as evidence. However, customers are urged to order certified records directly from NCEI if local law requires it.

MRCC certified records are only available in paper format. Delivery is usually by U.S. Mail. Rush delivery by UPS is also available for an additional fee. Data certified by MRCC must originate from the MRCC. Previously ordered data cannot be submitted to the MRCC for certification.

*MRCC cannot certify the accuracy or completeness of the data.
**Certifications cannot be provided via e-mail.  They are typically provided via U.S. Mail (or other parcel service) with basic postage included, but can be faxed as well.

For more information, including placing orders, contact us at:
Phone: (765) 494-8060

MRCC Expert Witness Testimony Policy
MRCC Expert Witness Testimony Policy (pdf)
MRCC Sample Certification
MRCC Sample Certification (pdf)
NCDC Certification Procedures
NCEI Certification Procedures (link)
NCDC Sample Certification
NCEI Sample Certification (pdf)
NCDC Weather Records in Private Litigation
NCEI Weather Records in Private Litigation (pdf)