07:15Strange Weather DaysSeries 2Episode 5: The Big FreezeBBC Radio 4 Extra Duration: 15 minutes Sun 21st Jul 2013, 07:15 on BBC Radio 4 ExtraMeteorologist Helen Young visits Dartmoor to recall the jumbo freeze of 1963, when a baby had to be delivered by phone.GenresFactualScience & NatureBrandStrange Weather DaysSeriesStrange Weather Days: Series 2 Source: BBC Online