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The Heat of Summer

July is the hottest month in the Northeast, with normal maximum (max) temperatures ranging from the mid-70s to the upper 80s and normal minimum (min) temperatures ranging from the mid-50s to the low 70s. The past few days, much of the Northeast dealt with a heatwave, with the highest temperatures reaching 100°F. The combination of heat and unusually high humidity prompted Excessive Heat Warnings for much of the region and made it feel as hot as 114°F in some places. While quite hot, only a few major climate sites set daily max temperature records and the heat wasn’t enough to challenge any all-time warmest July max temperatures.

max temp records table

Five major climate sites set daily max temperature records over the weekend.

July highest max temp table

The highest July temperatures at the 35 major climate sites.

However, min temperatures were a different story! Boston, MA, tied its all-time highest min temperature on record (since 1872) with a low of 83°F on July 21. The low of 78°F in Providence, RI, on the 21st tied as the highest min temperature for July on record (since 1904). In all, 17 major climate sites had low temperatures that ranked among the 10 warmest on record for July. In fact, at 12 of those sites, the min temperatures ranked among the 10 all-time warmest on record.

min temp records table

Low temperatures ranked among the 10 warmest on record for July and for any month at several major climate sites. Records were tied at Boston, MA, and Providence, RI.

min temp records table

The highest min temperatures on record at Boston, MA.