Portland, Oregon2004 Climate Data
North America Region, US
Detailed temperature analysis for 2004 with 363 daily measurements across 12 months.
Avg: 55.2°F
12 Months
363 Records
Year Average
55.2°F
2004
Highest
85.2°F
Lowest
20.4°F
Range
64.8°F
Monthly Temperature Progression - 2004
32°F
38°F
Jan
45°F
Feb
51°F
Mar
56°F
Apr
60°F
May
65°F
Jun
71°F
Jul
70°F
Aug
62°F
Sep
56°F
Oct
45°F
Nov
43°F
Dec
Below Freezing
|32°F (0°C)|Above Freezing
Monthly Details - 2004
January 2004
Average:37.8°F
Range:20.4°F - 53.2°F
Days:28 days
Records:28
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February 2004
Average:44.8°F
Range:40.6°F - 49.5°F
Days:29 days
Records:29
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March 2004
Average:50.8°F
Range:44.3°F - 61.9°F
Days:31 days
Records:31
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April 2004
Average:55.6°F
Range:46.8°F - 66.2°F
Days:30 days
Records:30
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May 2004
Average:59.5°F
Range:54.1°F - 67.9°F
Days:31 days
Records:31
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June 2004
Average:64.7°F
Range:56.2°F - 76.3°F
Days:30 days
Records:30
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July 2004
Average:70.7°F
Range:62.7°F - 85.2°F
Days:31 days
Records:31
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August 2004
Average:70.0°F
Range:62.4°F - 79.9°F
Days:31 days
Records:31
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September 2004
Average:62.2°F
Range:54.0°F - 69.7°F
Days:30 days
Records:30
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October 2004
Average:55.8°F
Range:46.5°F - 66.2°F
Days:31 days
Records:31
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November 2004
Average:45.3°F
Range:36.6°F - 54.2°F
Days:30 days
Records:30
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December 2004
Average:43.2°F
Range:37.1°F - 57.0°F
Days:31 days
Records:31
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2004 Climate Summary
The year 2004 in Portland, Oregon, US was characterized by an average temperature of 55.2°F, with temperatures ranging from a low of 20.4°F to a high of 85.2°F.
Temperature Analysis
- Annual Average: 55.2°F
- Temperature Extremes: 64.8°F range
- Data Coverage: 12 months with available observations
- Total Measurements: 363 daily records
Seasonal Patterns
January37.8°F
February44.8°F
March50.8°F
April55.6°F
... and 8 more months