OR
Portland has around 59 fewer freezing nights a year.
Louisville endures about 23 more days above 90 °F each year. Louisville enjoys about 29 more sunny days a year than Portland.
The year at a glance
Averages from 30 years of climate history, 1991-2020
| Louisville | Metric | Portland |
|---|---|---|
| 189 days | Sunny daysclear or partly cloudy skies | 160 days |
| 46 in | Precipitationper year | 37 in |
| 128 days | Wet daysrain or snow per year | 157 days |
| 15 in | Snowfallper year | 6 in |
| 36 days | Hot daysabove 90 °F | 13 days |
| 81 days | Freezing nightsat or below 32 °F | 22 days |
| 71% | Humidityaverage relative | 76% |
| 58 °F | Average temperatureyear round | 55 °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.
Daily highs
Daily lows
View monthly temperatures as a table
| City | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Louisville high | 43 | 48 | 57 | 69 | 77 | 85 | 88 | 87 | 81 | 70 | 57 | 46 |
| Portland high | 47 | 51 | 56 | 61 | 68 | 73 | 81 | 81 | 75 | 63 | 53 | 46 |
| Louisville low | 27 | 30 | 38 | 47 | 57 | 65 | 69 | 68 | 60 | 49 | 38 | 31 |
| Portland low | 37 | 38 | 40 | 44 | 49 | 53 | 58 | 58 | 55 | 47 | 41 | 37 |
Monthly precipitation
Total rain plus melted snow for each month, in inches. Taller bars mean wetter months.
View monthly precipitation as a table
| City | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Louisville | 3.6 | 3.3 | 4.5 | 5.0 | 5.0 | 4.0 | 4.0 | 2.8 | 3.0 | 3.3 | 3.5 | 4.0 |
| Portland | 5.1 | 4.0 | 4.4 | 3.5 | 2.1 | 1.3 | 0.4 | 0.4 | 1.3 | 3.2 | 5.3 | 5.9 |
Monthly sunny days
Days each month with clear or partly cloudy skies, so compare the same month between cities.
View monthly sunny days as a table
| City | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Louisville | 12 | 11 | 14 | 15 | 15 | 17 | 19 | 20 | 20 | 19 | 16 | 12 |
| Portland | 7 | 8 | 8 | 9 | 13 | 15 | 24 | 25 | 21 | 15 | 8 | 7 |
Keep comparing
Nearby cities and popular picks for each side of this matchup. Any two cities can be compared from the home page.
Louisville vs another city
- Louisville vs Jeffersontown, KY
- Louisville vs St. Matthews, KY
- Louisville vs Douglass Hills, KY
- Louisville vs Lyndon, KY
- Louisville vs Hillview, KY
- Louisville vs Middletown, KY
- Louisville vs New York, NY
- Louisville vs Los Angeles, CA
- Louisville vs Chicago, IL
- Louisville vs Houston, TX
- Louisville vs Phoenix, AZ
- Louisville vs Philadelphia, PA
Portland vs another city
- Portland vs West Haven-Sylvan, OR
- Portland vs Raleigh Hills, OR
- Portland vs Milwaukie, OR
- Portland vs West Slope, OR
- Portland vs Cedar Mill, OR
- Portland vs Vancouver, WA
- Portland vs New York, NY
- Portland vs Los Angeles, CA
- Portland vs Chicago, IL
- Portland vs Houston, TX
- Portland vs Phoenix, AZ
- Portland vs Philadelphia, PA
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).