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Hermiston, OR vs Kennewick, WA weather comparison

Hermiston

OR

Hermiston and Kennewick have remarkably similar climates.

The year at a glance

Averages from 30 years of climate history, 1991-2020

Annual weather statistics for Hermiston, OR and Kennewick, WA
HermistonMetricKennewick
215 daysSunny daysclear or partly cloudy skies218 days
11 inPrecipitationper year9 in
72 daysWet daysrain or snow per year60 days
7 inSnowfallper year6 in
48 daysHot daysabove 90 °F48 days
115 daysFreezing nightsat or below 32 °F87 days
57%Humidityaverage relative57%
53 °FAverage temperatureyear round55 °F

Monthly temperatures

Average daily high and low for each month, in °F. The gap between the two lines is what an ordinary day feels like across the year.

HermistonKennewick

Daily highs

406080JanMarMayJulSepNovHermiston, Jan: 43 °FHermiston, Feb: 49 °FHermiston, Mar: 59 °FHermiston, Apr: 66 °FHermiston, May: 76 °FHermiston, Jun: 82 °FHermiston, Jul: 92 °FHermiston, Aug: 90 °FHermiston, Sep: 81 °FHermiston, Oct: 66 °FHermiston, Nov: 51 °FHermiston, Dec: 42 °FKennewick, Jan: 42 °FKennewick, Feb: 48 °FKennewick, Mar: 58 °FKennewick, Apr: 66 °FKennewick, May: 75 °FKennewick, Jun: 82 °FKennewick, Jul: 91 °FKennewick, Aug: 90 °FKennewick, Sep: 80 °FKennewick, Oct: 66 °FKennewick, Nov: 50 °FKennewick, Dec: 41 °F

Daily lows

30405060JanMarMayJulSepNovHermiston, Jan: 28 °FHermiston, Feb: 29 °FHermiston, Mar: 33 °FHermiston, Apr: 38 °FHermiston, May: 46 °FHermiston, Jun: 53 °FHermiston, Jul: 58 °FHermiston, Aug: 56 °FHermiston, Sep: 47 °FHermiston, Oct: 38 °FHermiston, Nov: 32 °FHermiston, Dec: 28 °FKennewick, Jan: 29 °FKennewick, Feb: 30 °FKennewick, Mar: 35 °FKennewick, Apr: 41 °FKennewick, May: 49 °FKennewick, Jun: 55 °FKennewick, Jul: 61 °FKennewick, Aug: 60 °FKennewick, Sep: 51 °FKennewick, Oct: 42 °FKennewick, Nov: 34 °FKennewick, Dec: 29 °F
View monthly temperatures as a table
Monthly temperatures (°F)
CityJanFebMarAprMayJunJulAugSepOctNovDec
Hermiston high434959667682929081665142
Kennewick high424858667582919080665041
Hermiston low282933384653585647383228
Kennewick low293035414955616051423429

Monthly precipitation

Total rain plus melted snow for each month, in inches. Taller bars mean wetter months.

HermistonKennewick
0.00.51.01.5JanMarMayJulSepNovHermiston, Jan: 1.5 inHermiston, Feb: 1.2 inHermiston, Mar: 1.3 inHermiston, Apr: 1.0 inHermiston, May: 0.9 inHermiston, Jun: 0.6 inHermiston, Jul: 0.1 inHermiston, Aug: 0.2 inHermiston, Sep: 0.3 inHermiston, Oct: 1.0 inHermiston, Nov: 1.4 inHermiston, Dec: 1.6 inKennewick, Jan: 1.3 inKennewick, Feb: 0.9 inKennewick, Mar: 0.9 inKennewick, Apr: 0.7 inKennewick, May: 0.7 inKennewick, Jun: 0.5 inKennewick, Jul: 0.1 inKennewick, Aug: 0.2 inKennewick, Sep: 0.3 inKennewick, Oct: 0.9 inKennewick, Nov: 1.1 inKennewick, Dec: 1.4 in
View monthly precipitation as a table
Monthly precipitation (inches)
CityJanFebMarAprMayJunJulAugSepOctNovDec
Hermiston1.51.21.31.00.90.60.10.20.31.01.41.6
Kennewick1.30.90.90.70.70.50.10.20.30.91.11.4

Monthly sunny days

Days each month with clear or partly cloudy skies, so compare the same month between cities.

HermistonKennewick
0102030JanMarMayJulSepNovHermiston, Jan: 9 daysHermiston, Feb: 12 daysHermiston, Mar: 14 daysHermiston, Apr: 16 daysHermiston, May: 19 daysHermiston, Jun: 22 daysHermiston, Jul: 29 daysHermiston, Aug: 28 daysHermiston, Sep: 25 daysHermiston, Oct: 20 daysHermiston, Nov: 12 daysHermiston, Dec: 9 daysKennewick, Jan: 10 daysKennewick, Feb: 13 daysKennewick, Mar: 15 daysKennewick, Apr: 16 daysKennewick, May: 19 daysKennewick, Jun: 22 daysKennewick, Jul: 29 daysKennewick, Aug: 28 daysKennewick, Sep: 25 daysKennewick, Oct: 20 daysKennewick, Nov: 12 daysKennewick, Dec: 10 days
View monthly sunny days as a table
Monthly sunny days (days)
CityJanFebMarAprMayJunJulAugSepOctNovDec
Hermiston9121416192229282520129
Kennewick101315161922292825201210

Keep comparing

Nearby cities and popular picks for each side of this matchup. Any two cities can be compared from the home page.

Hermiston vs another city

See the full Hermiston, OR climate profile

More Oregon cities

Kennewick vs another city

See the full Kennewick, WA climate profile

More Washington cities

About this data

Every figure on this page is a 30 year average computed from daily climate history for 1991-2020, using each city's own coordinates. Wet days count days with measurable precipitation, calibrated against the wet day counts in NOAA's published climate normals. Sunny days count clear plus partly cloudy days, defined as average cloud cover of 63 percent or less and calibrated against NOAA's published sky cover tables. Snowfall figures are model estimates anchored to NOAA station measurements near each city.

Weather data by Open-Meteo.com (CC BY 4.0). Contains modified Copernicus Climate Change Service information (ERA5, ERA5-Land).