Umatilla, OR Weather - Forecast & Monthly Averages

TEMPERATURE	30
HUMIDITY	92
PRESSURE	102030
WIND COND.

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Weather Quick Facts

The highest monthly average temperature in Umatilla for July is 77 degrees
The lowest monthly average temperature in Umatilla for January is 31.8 degrees
The most monthly precipitation in Umatilla occurs in June with 2.9 inches
The air quality index in Umatilla is 12% better than the national average
The pollution index in Umatilla is 62% worse than the national average

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Umatilla Average Temperature

In the event that the weather data was unavailable for this city, estimates based upon nearby cities were used.
Month	Temp. _(min)	Temp. _(max)	Temp. _(avg)	Precipitation
January	24°F	40°F	32°F	1.2"
February	25°F	51°F	37°F	1.4"
March	34°F	63°F	48°F	1.2"
April	38°F	67°F	52°F	1.9"
May	46°F	78°F	62°F	1.6"
June	51°F	82°F	67°F	2.9"
July	59°F	95°F	77°F	1.1"
August	55°F	92°F	73°F	0.4"
September	45°F	80°F	62°F	0.9"
October	40°F	66°F	52°F	1.9"
November	31°F	49°F	40°F	2.4"
December	26°F	40°F	33°F	2.5"

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Umatilla air quality index & pollution index

In the event that the air quality/pollution data was unavailable for this city, estimates based upon nearby cities were used.
Index	Umatilla	Oregon	National
Air quality index	37	32	42
Pollution index	4,405,170	7,156,356	2,726,193

Umatilla air quality

Measurement	Total
Days measured	365
Days with good air quality	303
Days with moderate air quality	62
Days w/ poor A.Q. for sensitive groups	0
Days with unhealthy air quality	0

Air quality details

Pollutant	Total
Arsenic	0.002%
Benzene	0.130%
Carbon Tetrachloride	0.004%
Lead	0.010%
Mercury	0.002%

Average monthly Umatilla temperature with heat index

Umatilla monthly precipitation with daily maximum

Umatilla monthly snow depth with daily maximum

Umatilla monthly wind speed information

Nearby cities with good air quality

City	Population	Air Quality Index	National Avg.
Irrigon, OR	1,904	37	26.0%
Stanfield, OR	2,521	38	24.0%
Echo, OR	577	38	24.0%
Hermiston, OR	17,512	38	24.0%
Umatilla, OR	7,215	37	26.0%

Cities with similar population

City	Population	Air Quality Index	National Avg.
Dunellen, NJ	7,215	51	2.0%
Neptune Beach, FL	7,214	43	14.0%
Riverdale Park, MD	7,216	47	6.0%
Lago Vista, TX	7,212	44	12.0%
Seward, NE	7,210	31	38.0%
Umatilla, OR	7,215	37	26.0%

Source: The Umatilla, OR weather data displayed above is derived from the NOAA (National Oceanic and Atmospheric). Air quality and pollution data is derived from the EPA (United States Environmental Protection Agency). Air quality and pollution levels measured in a particular area may not be representative of the entire county.