Alvin (TX) Rainfall & Precipitation: Monthly Averages and Year-Round Insights
This page shows both the average monthly rainfall and the number of rainy days in Alvin, Texas, United States of America. This average is based on long-term data collected between 1990 and 2020. Now, let’s explore all the details to give you a full picture.
Alvin has a notably wet climate with abundant precipitation, recording 1346 mm of rainfall per year.
Monthly Precipitation Levels
The average number of days each month with precipitation (> 0.2 mm)
The climate in Alvin shows significant variation throughout the year. Expect 155 mm of precipitation during the wettest month July, distributed over 15 rainy days.
In contrast, February offers drier and sunnier days, with around 56 mm of rainfall over 9 rainy days.July, the wettest month, has a maximum daytime temperature of 33°C. The city receives 295 hours of sunshine in this period. During the driest month February you can expect a temperature of 19°C. For more detailed insights into the city’s temperatures, visit our Alvin Temperature page.
Annual Precipitation in the United States of America
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.





Amsterdam Precipitation Compared World Wide
Alvin’s average annual precipitation is 1346 mm. Let’s compare this to some popular worldwide tourist destinations:
In Lisbon, Portugal, the average annual precipitation is 774 mm, characterized by wet winters and dry summers typical of the Mediterranean climate.
Osaka, Japan, experiences 1507 mm of rainfall annually, spread across the year with wetter summers.
In Tokyo, Japan, the average annual precipitation is 1528 mm, with significant summer rains due to typhoon season.
Singapore, situated near the equator, gets 2581 mm of rainfall annually, with no distinct dry season and consistent monthly precipitation.
How is Precipitation Measured?
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.
Global Warming and Precipitation
Climate change is affecting precipitation patterns worldwide, including Alvin (TX):
- Changing Rainfall Patterns: Global warming causes drastic changes in the patterns of rainfall. Some areas have been experiencing increased frequency and intensity of rainfall, while other areas experience longer dry spells or even droughts.
- Local Impacts: Many regions are experiencing heavier rainfall in the winter months and drier, hotter summers. This affects agriculture, water resources, and ecosystems.
For more detailed information about Alvin (TX)’s weather, including sunshine hours, humidity levels, and temperature data, visit our Alvin (TX) Climate page.