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Portland, OR vs Sioux Falls, SD weather comparison

Portland

OR

Sioux Falls picks up around 41 more inches of snow each winter.

Portland has around 135 fewer freezing nights a year. Sioux Falls sees rain or snow on roughly 52 fewer days each year.

The year at a glance

Averages from 30 years of climate history, 1991-2020

Annual weather statistics for Portland, OR and Sioux Falls, SD
PortlandMetricSioux Falls
160 daysSunny daysclear or partly cloudy skies211 days
37 inPrecipitationper year32 in
157 daysWet daysrain or snow per year106 days
6 inSnowfallper year47 in
13 daysHot daysabove 90 °F16 days
22 daysFreezing nightsat or below 32 °F157 days
76%Humidityaverage relative70%
55 °FAverage temperatureyear round47 °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.

PortlandSioux Falls

Daily highs

406080JanMarMayJulSepNovPortland, Jan: 47 °FPortland, Feb: 51 °FPortland, Mar: 56 °FPortland, Apr: 61 °FPortland, May: 68 °FPortland, Jun: 73 °FPortland, Jul: 81 °FPortland, Aug: 81 °FPortland, Sep: 75 °FPortland, Oct: 63 °FPortland, Nov: 53 °FPortland, Dec: 46 °FSioux Falls, Jan: 26 °FSioux Falls, Feb: 31 °FSioux Falls, Mar: 44 °FSioux Falls, Apr: 58 °FSioux Falls, May: 70 °FSioux Falls, Jun: 81 °FSioux Falls, Jul: 85 °FSioux Falls, Aug: 82 °FSioux Falls, Sep: 75 °FSioux Falls, Oct: 61 °FSioux Falls, Nov: 44 °FSioux Falls, Dec: 31 °F

Daily lows

204060JanMarMayJulSepNovPortland, Jan: 37 °FPortland, Feb: 38 °FPortland, Mar: 40 °FPortland, Apr: 44 °FPortland, May: 49 °FPortland, Jun: 53 °FPortland, Jul: 58 °FPortland, Aug: 58 °FPortland, Sep: 55 °FPortland, Oct: 47 °FPortland, Nov: 41 °FPortland, Dec: 37 °FSioux Falls, Jan: 8 °FSioux Falls, Feb: 12 °FSioux Falls, Mar: 24 °FSioux Falls, Apr: 35 °FSioux Falls, May: 48 °FSioux Falls, Jun: 59 °FSioux Falls, Jul: 64 °FSioux Falls, Aug: 61 °FSioux Falls, Sep: 52 °FSioux Falls, Oct: 38 °FSioux Falls, Nov: 24 °FSioux Falls, Dec: 13 °F
View monthly temperatures as a table
Monthly temperatures (°F)
CityJanFebMarAprMayJunJulAugSepOctNovDec
Portland high475156616873818175635346
Sioux Falls high263144587081858275614431
Portland low373840444953585855474137
Sioux Falls low81224354859646152382413

Monthly precipitation

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

PortlandSioux Falls
0.02.04.06.0JanMarMayJulSepNovPortland, Jan: 5.1 inPortland, Feb: 4.0 inPortland, Mar: 4.4 inPortland, Apr: 3.5 inPortland, May: 2.1 inPortland, Jun: 1.3 inPortland, Jul: 0.4 inPortland, Aug: 0.4 inPortland, Sep: 1.3 inPortland, Oct: 3.2 inPortland, Nov: 5.3 inPortland, Dec: 5.9 inSioux Falls, Jan: 0.8 inSioux Falls, Feb: 0.9 inSioux Falls, Mar: 1.8 inSioux Falls, Apr: 3.6 inSioux Falls, May: 4.5 inSioux Falls, Jun: 5.1 inSioux Falls, Jul: 3.3 inSioux Falls, Aug: 3.3 inSioux Falls, Sep: 3.2 inSioux Falls, Oct: 2.4 inSioux Falls, Nov: 1.6 inSioux Falls, Dec: 1.0 in
View monthly precipitation as a table
Monthly precipitation (inches)
CityJanFebMarAprMayJunJulAugSepOctNovDec
Portland5.14.04.43.52.11.30.40.41.33.25.35.9
Sioux Falls0.80.91.83.64.55.13.33.33.22.41.61.0

Monthly sunny days

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

PortlandSioux Falls
01020JanMarMayJulSepNovPortland, Jan: 7 daysPortland, Feb: 8 daysPortland, Mar: 8 daysPortland, Apr: 9 daysPortland, May: 13 daysPortland, Jun: 15 daysPortland, Jul: 24 daysPortland, Aug: 25 daysPortland, Sep: 21 daysPortland, Oct: 15 daysPortland, Nov: 8 daysPortland, Dec: 7 daysSioux Falls, Jan: 14 daysSioux Falls, Feb: 14 daysSioux Falls, Mar: 16 daysSioux Falls, Apr: 15 daysSioux Falls, May: 17 daysSioux Falls, Jun: 18 daysSioux Falls, Jul: 23 daysSioux Falls, Aug: 22 daysSioux Falls, Sep: 21 daysSioux Falls, Oct: 19 daysSioux Falls, Nov: 16 daysSioux Falls, Dec: 15 days
View monthly sunny days as a table
Monthly sunny days (days)
CityJanFebMarAprMayJunJulAugSepOctNovDec
Portland788913152425211587
Sioux Falls141416151718232221191615

Keep comparing

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

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).