A rather surprising chart of temperature anomalies for North American for the first 20 days of November 2022. Well it was at least for me. The cold air and mountains of snow at Buffalo gave me the impression that the whole of November had been very cold but not so. For the first two weeks of November eastern America was extremely mild with anomalies as high as +8°C. The third week saw the opposite conditions and it was much colder, which reduced the magnitude of the warm high that you can see in the anomaly chart close to New York (+4°C). It’s just how climate is with extremes of temperature cancelling each other out within the space of a year or less.