The U.S. Population Weight HDD Anomalies for the 2019-20 Cold Season

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The 2019-20 U.S. cold season monthly population weight HDD ranks indicate a chilly start (November 4th coldest) and end (April ranked 3rd coldest) of the season with exceptionally warm climate through the core of the winter season lead by the 2nd warmest January in the 20-year climatology.

Discussion: The 2019-20 U.S. cold season monthly population weight HDD ranks indicate a chilly start (November 4th coldest) and end (April ranked 3rd coldest) of the season with exceptionally warm climate through the core of the winter season lead by the 2nd warmest January in the 20-year climatology. December and March each ranked in the top 5 warmest of the past 20 years and February was close by at 7th warmest.

NovemberDecemberJanuaryFebruaryMarchApril
2019-20644778808757552413
2018-19653787945807706327
2017-18535875958702662479
2016-17452863839600604278
30-Yr589885980793649382
10-Yr571811943787621353

Table 1: The Climate Impact Company population weight CDD Outlook.

NovemberDecemberJanuaryFebruaryMarchApril
2019-204151913163

 Table 2: Rank of past 20 years.