East Coast rail had the most late-running trains last month, according to figures from Network Rail.
East Coast was able to run only 82.8% of trains on time, making it the poorest-performing train operator.
Across all train companies, a total of 91.4% of trains ran on time in the period March 3 to March 31, compared with 93.4% for the same period last year.
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Spring has arrived as the sun comes out and temperatures rise to 16ºC by Saturday
There'll be a lot of cloud at first this morning but the sun should break through in many places this afternoon.
The cloudy skies will remain tonight but at least temperatures will stay frost-free.