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Climate & Weather Averages in Vernonia, Oregon, USA

Currently: 41 °F. Clear. (Weather station: Portland-Hillsboro Airport, USA). See more current weather

Annual Weather Averages in Portland-Hillsboro Airport

Portland-Hillsboro Airport is 25 miles from Vernonia, so the actual climate in Vernonia can vary a bit.

Based on weather reports collected during 1992–2021.

Jan
47
34
5.62
Feb
51
34
3.89
Mar
56
37
3.7
Apr
61
40
2.55
May
68
45
1.95
Jun
73
50
1.3
Jul
82
53
0.37
Aug
82
52
0.46
Sep
76
48
1.46
Oct
63
42
3.19
Nov
52
37
5.34
Dec
46
34
6.39

All Year Climate & Weather Averages in Vernonia

High Temp: 82 °F

Low Temp: 34 °F

Mean Temp: 53 °F

Precipitation: 3.02"

Humidity: 75%

Dew Point: 44 °F

Wind: 7 mph

Pressure: 30.06 "Hg

Visibility: 9 mi

January Climate & Weather Averages in Vernonia

High Temp: 47 °F

Low Temp: 34 °F

Mean Temp: 41 °F

Precipitation: 5.62"

Humidity: 87%

Dew Point: 37 °F

Wind: 7 mph

Pressure: 30.10 "Hg

Visibility: 7 mi

February Climate & Weather Averages in Vernonia

High Temp: 51 °F

Low Temp: 34 °F

Mean Temp: 42 °F

Precipitation: 3.89"

Humidity: 82%

Dew Point: 37 °F

Wind: 7 mph

Pressure: 30.08 "Hg

Visibility: 9 mi

March Climate & Weather Averages in Vernonia

High Temp: 56 °F

Low Temp: 37 °F

Mean Temp: 46 °F

Precipitation: 3.70"

Humidity: 78%

Dew Point: 39 °F

Wind: 8 mph

Pressure: 30.07 "Hg

Visibility: 10 mi

April Climate & Weather Averages in Vernonia

High Temp: 61 °F

Low Temp: 40 °F

Mean Temp: 50 °F

Precipitation: 2.55"

Humidity: 73%

Dew Point: 41 °F

Wind: 8 mph

Pressure: 30.06 "Hg

Visibility: 10 mi

May Climate & Weather Averages in Vernonia

High Temp: 68 °F

Low Temp: 45 °F

Mean Temp: 57 °F

Precipitation: 1.95"

Humidity: 69%

Dew Point: 46 °F

Wind: 7 mph

Pressure: 30.04 "Hg

Visibility: 11 mi

June Climate & Weather Averages in Vernonia

High Temp: 73 °F

Low Temp: 50 °F

Mean Temp: 61 °F

Precipitation: 1.30"

Humidity: 67%

Dew Point: 50 °F

Wind: 7 mph

Pressure: 30.04 "Hg

Visibility: 11 mi

July Climate & Weather Averages in Vernonia

High Temp: 82 °F

Low Temp: 53 °F

Mean Temp: 67 °F

Precipitation: 0.37"

Humidity: 61%

Dew Point: 53 °F

Wind: 7 mph

Pressure: 30.03 "Hg

Visibility: 11 mi

August Climate & Weather Averages in Vernonia

High Temp: 82 °F

Low Temp: 52 °F

Mean Temp: 67 °F

Precipitation: 0.46"

Humidity: 62%

Dew Point: 53 °F

Wind: 6 mph

Pressure: 30.00 "Hg

Visibility: 11 mi

September Climate & Weather Averages in Vernonia

High Temp: 76 °F

Low Temp: 48 °F

Mean Temp: 62 °F

Precipitation: 1.46"

Humidity: 68%

Dew Point: 50 °F

Wind: 5 mph

Pressure: 30.01 "Hg

Visibility: 10 mi

October Climate & Weather Averages in Vernonia

High Temp: 63 °F

Low Temp: 42 °F

Mean Temp: 52 °F

Precipitation: 3.19"

Humidity: 80%

Dew Point: 46 °F

Wind: 5 mph

Pressure: 30.08 "Hg

Visibility: 8 mi

November Climate & Weather Averages in Vernonia

High Temp: 52 °F

Low Temp: 37 °F

Mean Temp: 45 °F

Precipitation: 5.34"

Humidity: 87%

Dew Point: 41 °F

Wind: 6 mph

Pressure: 30.09 "Hg

Visibility: 7 mi

December Climate & Weather Averages in Vernonia

High Temp: 46 °F

Low Temp: 34 °F

Mean Temp: 40 °F

Precipitation: 6.39"

Humidity: 88%

Dew Point: 36 °F

Wind: 7 mph

Pressure: 30.12 "Hg

Visibility: 7 mi

Quick Climate Info

Hottest MonthAugust (67 °F avg)
Coldest MonthDecember (40 °F avg)
Wettest MonthDecember (6.39" avg)
Windiest MonthMarch (8 mph avg)
Annual precip.36.24" (per year)

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