Boise sees rain or snow on roughly 54 fewer days each year.
Boise enjoys about 51 more sunny days a year than Louisville.
The year at a glance
Averages from 30 years of climate history, 1991-2020
| Boise | Metric | Louisville |
|---|---|---|
| 239 days | Sunny daysclear or partly cloudy skies | 189 days |
| 12 in | Precipitationper year | 46 in |
| 73 days | Wet daysrain or snow per year | 128 days |
| 18 in | Snowfallper year | 15 in |
| 54 days | Hot daysabove 90 °F | 36 days |
| 109 days | Freezing nightsat or below 32 °F | 81 days |
| 54% | Humidityaverage relative | 71% |
| 53 °F | Average temperatureyear round | 58 °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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Boise high | 39 | 46 | 55 | 62 | 72 | 81 | 92 | 91 | 80 | 65 | 49 | 39 |
| Louisville high | 43 | 48 | 57 | 69 | 77 | 85 | 88 | 87 | 81 | 70 | 57 | 46 |
| Boise low | 26 | 29 | 35 | 39 | 47 | 54 | 62 | 61 | 52 | 41 | 32 | 25 |
| Louisville low | 27 | 30 | 38 | 47 | 57 | 65 | 69 | 68 | 60 | 49 | 38 | 31 |
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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Boise | 1.8 | 1.2 | 1.4 | 1.2 | 1.2 | 0.6 | 0.1 | 0.1 | 0.4 | 0.9 | 1.4 | 2.0 |
| 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 |
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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Boise | 14 | 14 | 15 | 18 | 20 | 23 | 29 | 28 | 26 | 23 | 16 | 14 |
| Louisville | 12 | 11 | 14 | 15 | 15 | 17 | 19 | 20 | 20 | 19 | 16 | 12 |
Keep comparing
Nearby cities and popular picks for each side of this matchup. Any two cities can be compared from the home page.
Boise vs another city
- Boise vs Garden City, ID
- Boise vs Meridian, ID
- Boise vs Kuna, ID
- Boise vs Star, ID
- Boise vs Eagle, ID
- Boise vs Nampa, ID
- Boise vs New York, NY
- Boise vs Los Angeles, CA
- Boise vs Chicago, IL
- Boise vs Houston, TX
- Boise vs Phoenix, AZ
- Boise vs Philadelphia, PA
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
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).