claim: temperatures were 6-10C above normal over most of France, Germany and northern Spain during the final days of the month, according to C3S.
evidence: March is transitional, the temperature often exceeds 20 °C ( 68 °F ), with an average temperature of 19.3 °C ( 66.7 °F ) during the day and 10.0 °C ( 50.0 °F ) at night.