Portland, Maine2018 Climate Data
North America Region, US
Detailed temperature analysis for 2018 with 362 daily measurements across 12 months.
Avg: 48.1°F
12 Months
362 Records
Year Average
48.1°F
2018
Highest
81.5°F
Lowest
-2.8°F
Range
84.3°F
Monthly Temperature Progression - 2018
32°F
24°F
Jan
33°F
Feb
34°F
Mar
42°F
Apr
57°F
May
64°F
Jun
71°F
Jul
72°F
Aug
63°F
Sep
48°F
Oct
36°F
Nov
30°F
Dec
Below Freezing
|32°F (0°C)|Above Freezing
Monthly Details - 2018
January 2018
Average:24.1°F
Range:-2.8°F - 45.8°F
Days:29 days
Records:29
View Daily Data
February 2018
Average:32.9°F
Range:18.6°F - 45.5°F
Days:27 days
Records:27
View Daily Data
March 2018
Average:34.0°F
Range:18.1°F - 45.9°F
Days:31 days
Records:31
View Daily Data
April 2018
Average:41.7°F
Range:30.2°F - 52.7°F
Days:30 days
Records:30
View Daily Data
May 2018
Average:56.9°F
Range:46.0°F - 72.5°F
Days:31 days
Records:31
View Daily Data
June 2018
Average:63.8°F
Range:46.5°F - 74.6°F
Days:30 days
Records:30
View Daily Data
July 2018
Average:71.2°F
Range:62.6°F - 81.2°F
Days:31 days
Records:31
View Daily Data
August 2018
Average:72.0°F
Range:63.8°F - 81.5°F
Days:31 days
Records:31
View Daily Data
September 2018
Average:63.4°F
Range:44.8°F - 77.6°F
Days:30 days
Records:30
View Daily Data
October 2018
Average:48.0°F
Range:34.9°F - 73.9°F
Days:31 days
Records:31
View Daily Data
November 2018
Average:35.9°F
Range:14.7°F - 53.0°F
Days:30 days
Records:30
View Daily Data
December 2018
Average:30.1°F
Range:17.5°F - 49.7°F
Days:31 days
Records:31
View Daily Data
2018 Climate Summary
The year 2018 in Portland, Maine, US was characterized by an average temperature of 48.1°F, with temperatures ranging from a low of -2.8°F to a high of 81.5°F.
Temperature Analysis
- Annual Average: 48.1°F
- Temperature Extremes: 84.3°F range
- Data Coverage: 12 months with available observations
- Total Measurements: 362 daily records
Seasonal Patterns
January24.1°F
February32.9°F
March34.0°F
April41.7°F
... and 8 more months