Louisville (CO) Monthly Rainfall & Precipitation
This page shows both the average monthly rainfall and the number of rainy days in Louisville, Colorado, United States of America. The figures are based on a 30-year period (1990–2020) to provide a reliable average. Now, let's break down all the details for a clearer picture.
Louisville's climate is marked by below-average rain/snowfall, accumulating 432 mm (17 in) of precipitation yearly. The distribution includes a distinct dry season during certain months as shown in the precipitation charts below.
Monthly Precipitation Levels
The average number of days each month with precipitation (> 0.2 mm (0.01 in))
The climate in Louisville shows significant variation throughout the year. Expect 67 mm (2.6 in) of precipitation during the wettest month May, distributed over 12 rainy days.
In contrast, January offers drier and sunnier days, with around 12 mm (0.5 in) of snow/rainfall over 5 snowy/rainy days.
May, the wettest month, has a maximum daytime temperature of 21°C (70°F). The city receives 290 hours of sunshine in this period. During the driest month January you can expect a temperature of 8°C (46°F). For more detailed insights into the city's temperatures, visit our Louisville Temperature page.
Annual Rainfall in the United States of America: City Comparison
The map below shows the annual precipitation across the United States of America. You can also select the different months in case you are interested in a specific month.
heavy rainfall
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Louisville vs World: Rainfall Compared
Louisville's average annual precipitation is 432 mm (17 in). Let's compare this to some popular worldwide tourist destinations:
Boston, USA, experiences 1238 mm (49 in) of annual precipitation, including significant snowfall during the winter.
In Shanghai, China, the annual average precipitation is 1347 mm (53 in), with a humid subtropical climate.
Melbourne, Australia, has 690 mm (27 in) of rainfall annually, spread fairly evenly throughout the year.
Ho Chi Minh City, Vietnam, receives 1955 mm (77 in) of annual rainfall, with a pronounced wet season from May to November, typical of its tropical monsoon climate.
Precipitation amounts are measured using specific gauges installed at weather stations, collecting both rain and snow and any other type of precipitation. Rainfall is measured directly in millimeters, while that from snow and ice is obtained by melting it. Automated systems often incorporate heaters to make this easier.
Information from these stations is transmitted via Wi-Fi, satellite, GPS, or telephone connections to central monitoring networks. This information is immediately updated and integrated into weather models and forecasts.
- "Ginger" was the longest-lasting Atlantic tropical storm, which spun around the open ocean for 28 days in 1971.
- The world's largest snowflake was recorded in the Guinness Book of Records, at 38 cm (15 inches) wide and 20 cm (7.9 inches) thick. The snowflake fell at Fort Keogh, Montana, USA, on 28 January 1887.
- The greatest snowfall recorded was on Mt. Rainier, Washington State, USA—over 31.5 meters (103 feet) fell during the winter of 1972.
For more detailed information about Louisville (CO)'s weather, including sunshine hours, humidity levels, and temperature data, visit our Louisville (CO) Climate page.
