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.