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Portland, Oregon Climate Averages

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Portland Monthly Climate Averages

January
February
March
April
May
June
July
August
September
October
November
December
Hi 47°F Lo 36°F Hi 48°F Lo 36°F Hi 53°F Lo 38°F Hi 59°F Lo 41°F Hi 67°F Lo 47°F Hi 74°F Lo 52°F Hi 83°F Lo 57°F Hi 84°F Lo 59°F Hi 76°F Lo 55°F Hi 64°F Lo 48°F Hi 52°F Lo 40°F Hi 45°F Lo 36°F
5 mph 5 mph 5 mph 5 mph 4 mph 4 mph 4 mph 4 mph 4 mph 5 mph 5 mph 5 mph
6.8 in 5.2 in 6 in 4.5 in 2.5 in 1.5 in 0.2 in 0.2 in 2 in 4.8 in 6.7 in 8.1 in
83% 82% 80% 76% 71% 68% 62% 61% 66% 72% 80% 83%
60% 60% 59% 55% 46% 39% 22% 21% 31% 42% 56% 60%
30.1 in 30.1 in 30.0 in 30.1 in 30.0 in 30.0 in 30.0 in 30.0 in 30.0 in 30.0 in 30.1 in 30.1 in
17 15 17 19 24 25 30 30 26 22 17 17
13 11 13 11 7 5 1 1 4 9 13 13
1 2 1 0 0 0 0 0 0 0 0 1
1 0 1 0 0 0 0 0 0 1 1 1
2 2 3 3 4 5 6 5 4 3 2 2
109 90 103 109 167 194 286 290 225 180 120 110
January
February
March
April
May
June
July
August
September
October
November
December
Hi 8°C Lo 2°C Hi 9°C Lo 2°C Hi 12°C Lo 4°C Hi 15°C Lo 5°C Hi 20°C Lo 8°C Hi 23°C Lo 11°C Hi 28°C Lo 14°C Hi 29°C Lo 15°C Hi 24°C Lo 13°C Hi 18°C Lo 9°C Hi 11°C Lo 5°C Hi 7°C Lo 2°C
9 km/h 9 km/h 8 km/h 8 km/h 7 km/h 7 km/h 7 km/h 6 km/h 7 km/h 7 km/h 9 km/h 9 km/h
172 mm 131 mm 153 mm 113 mm 64 mm 39 mm 6 mm 5 mm 51 mm 121 mm 170 mm 206 mm
83% 82% 80% 76% 71% 68% 62% 61% 66% 72% 80% 83%
60% 60% 59% 55% 46% 39% 22% 21% 31% 42% 56% 60%
1019 mb 1019 mb 1017 mb 1018 mb 1017 mb 1017 mb 1017 mb 1016 mb 1016 mb 1018 mb 1018 mb 1019 mb
17 15 17 19 24 25 30 30 26 22 17 17
13 11 13 11 7 5 1 1 4 9 13 13
1 2 1 0 0 0 0 0 0 0 0 1
1 0 1 0 0 0 0 0 0 1 1 1
2 2 3 3 4 5 6 5 4 3 2 2
109 90 103 109 167 194 286 290 225 180 120 110
Month
Avg. Temperatures
Avg. Wind Speed
Avg. Precipitation
Average Humidity
Avg. Cloud Cover
Pressure Average
Average Dry Days
Avg. Precip. Days
Avg. Snow Days
Average Fog Days
Average UV Index
Avg. Hours of Sun
Averages are based on historical weather data from the past 10 years.

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