Detectives identified a sex attacker by trawling through CCTV images.
Khalid Abdullah, 35, of Towler Street in Peterborough, was today jailed for eight years.
The Sudanese national had threatened his victim with a weapon before dragging her to an alleyway where he pushed her against a building and tried to rape her.
He then apologised and offered the woman his mobile phone to call police before she escaped.
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March in the Anglia region has been much drier and sunnier than normal although temperatures have been around average.
Breezy and rather cloudy overnight but mainly dry. On Sunday, becoming wet and windy for much of the morning after a dry start.
It will be a windy weekend with outbreaks of rain at times but also some drier and brighter weather. Feeling milder.