1. United States
  2. Maine
  3. Portland
  4. July

Portland, ME Climate in July

Temperature for July

In Portland, ME during July the average high temperature is 80.8°F. The hottest day on record was July 23, 2011 when the temperature hit 100.0°F.

Portland, ME daily average and extreme temperature range for July

Low Temperature

During July the overnight temperature drops to an average of 58.5°F, with the lowest temperature of 43.9°F being recorded on July 27, 1977. In July it has never frozen overnight.

Precipitation for July

In July the average monthly rainfall in Portland, ME is 4.46 inches with rain usually falling on between 12 and 13 days. 2003 was the driest July with only 1.57 inches of rain falling, and 1992 was the wettest July with 30.86 inches of rain. The wettest single day in July was 20 July 1992 when 5.98 inches of rain fell.

There are thunderstorms on between 3 and 4 days in July.
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