National Climate Report - Annual 2017
Regional Warmest/Wettest Year

« National Climate Report - Annual 2017


Regional Warmest/Wettest Year


Year 2017 was the third warmest of the 123 on record, when temperatures are averaged across the contiguous United States (CONUS). Despite the expansive warmth across the CONUS, only 10.3 percent of the total CONUS area experienced a record warm annual period. Places have unique climate histories, including the local and regional "warmest Years on record".

The first map below shows the local warmest Year on record across the CONUS, considering average temperature. The five largest footprints, which aren't necessarily the five warmest Years overall, are depicted in unique colors; all other Years are combined into an "other" category. The other maps depict the same type of analysis, for: minimum ("overnight low") temperature, maximum ("afternoon high") temperature and total precipitation.

(click any image to enlarge)

Average Temperature

Rank by AreaYearExtent
Largest201230.2%
2nd193412.6%
3rd201710.3%
4th20158.4%
5th19216.9%
map depicting local warmest TAVG Year on record

Minimum Temperature

Rank by AreaYearExtent
Largest199822.9%
2nd201514.2%
3rd201610.3%
4th201710.3%
5th20129.2%
map depicting local warmest TMIN Year on record


Maximum Temperature

Rank by AreaYearExtent
Largest201231.4%
2nd193417.1%
3rd19217.0%
4th20156.2%
5th20174.9%
map depicting local warmest TMAX Year on record

Total Precipitation

Rank by AreaYearExtent
Largest194110.5%
2nd19837.8%
3rd20115.7%
4th19153.9%
5th19963.6%
map depicting local largest total precipitation Year on record