Louisville, CO Weather & Climate Normals
Louisville's real weather, in one number
Louisville, CO scores 42/100 on this site's reading of NOAA's own 30-year normals: strongly seasonal. Comfortable weather is limited to a shorter window; summers, winters, or precipitation swing wide. 5 of the year's 12 months average between 55 and 75°F, the range this site counts as mild.
Louisville's hottest and coldest months
Louisville's hottest month is Jul, averaging 73°F; its coldest is Dec, averaging 34°F, a 38.8°F swing across the year, a middling gap by national standards.
Louisville's weather across the year
| Month | Avg high | Avg low | Precip | Snow |
|---|---|---|---|---|
| Jan | 47°F | 22°F | 0.83in | 11.3in |
| Feb | 48°F | 22°F | 0.99in | 15in |
| Mar | 57°F | 29°F | 1.99in | 15.7in |
| Apr | 63°F | 35°F | 3.05in | 14.7in |
| May | 71°F | 43°F | 3.21in | 2in |
| Jun | 83°F | 51°F | 1.95in | 0in |
| Jul | 88°F | 57°F | 1.83in | 0in |
| Aug | 86°F | 56°F | 1.68in | 0in |
| Sep | 79°F | 48°F | 2.09in | 1in |
| Oct | 66°F | 37°F | 1.62in | 7in |
| Nov | 55°F | 28°F | 1.18in | 13.1in |
| Dec | 46°F | 21°F | 0.81in | 13in |
May, Jun, Jul, Aug, and Sep are the best time to see Louisville at its mildest; the rest of the year, plan around Dec's cold.
Rain and snow in Louisville
Louisville averages 21.23in of precipitation a year across roughly 101 days with measurable rain or snow, and 92.8in of snow a year.
Where Louisville ranks
Louisville ranks 4209 of 4876 US cities in this dataset for comfort score, and 56 of 79 within CO. About 20,811 people live there.
If you need tomorrow's forecast, not the 30-year average
Everything above is a 30-year average from Boulder, CO US, 6.7 miles from Louisville, not a prediction for any specific day.
More on how this is worked out
How the comfort score is calculated · Why some cities show no snow or rain figure