Savannah Guthrie has made a rare public appearance at the memorial outside her mom’s house — a month after the 84-year-old woman vanished.

Guthrie was joined by sister Annie and her husband, Tommaso Cioni.

They laid flowers among the massive memorial that’s sprung up outside Nancy Guthrie’s home, footage obtained by NewsNation showed.

Savannah Guthrie Tomasso and her sister Annie Guthrie walk with two men, holding yellow flowers, escorted by two police officers.
Savannah Guthrie with her sister, Annie, and brother-in-law, Tommaso Cioni, outside their missing mom’s home.

Savannah Guthrie Tomasso and her sister Annie Guthrie embrace next to a mailbox with a missing person flyer for Nancy Guthrie.
Savannah Guthrie embraces her sister and brother-in-law as they look at tributes Nancy’s neighbors left.
Annie appeared to be sobbing and was supported by her family as they hugged each other over the touching tribute.

Nancy has been missing for over a month, after she vanished from the Arizona home on Feb. 1.

The appearance is also significant because online conspiracy theorists and streamers baselessly claimed that Cioni — the last person to see Nancy alive — should be investigated.

The Pima County sheriff later cleared him — and all members of the family.

But few other developments about suspects have been made since. The FBI made a final sweep of the property on Feb. 25 before deciding to turn the crime scene back over to the family.

Savannah Guthrie Tomasso and her sister Annie Guthrie embracing while a man places his arm around them at a memorial.
Savannah and Annie Guthrie embrace as they look at the flowers left outside Nancy Guthrie’s house.NewsNation
And the FBI has pulled back the bulk of its investigators from Tucson – though former Bureau officials previously told The Post that did not necessarily mean they were stepping away from the case, but could be devoting their resources to forensic lab work instead.

Savannah has also upped the reward leading to her mother’s return to $1 million, though so far no notable leads have emerged.

A masked suspect was filmed on Nancy’s home security, apparently breaking into the house on the night she disappeared, but so far no suspects have been identified.

Savannah Guthrie and her mother, Nancy Guthrie, smiling while sitting in chairs outdoors.
Savannah Guthrie with her mom, Nancy, in an undated photo.via REUTERS
Several people were detained by police, but each was cut loose soon after.

The dragging investigation has led to volunteers taking to the Arizona desert around Tucson to try to find clues on their own – with some scrounging up discarded backpacks and gloves to submit to police in case they were dumped by the kidnapper.

Pima County Sheriff’s Department, however, has insisted it is not scaling back its efforts to bring Nancy home.