Estate Thomas Monthly Rainfall & Precipitation
This page shows both the average monthly rainfall and the number of rainy days in Estate Thomas, Saint Thomas, US Virgin Islands. The numbers reflect climate data gathered over a 30-year period, from 1990 to 2020. Let's explore the details to provide you with a complete overview.
Estate Thomas has a notably wet climate with abundant precipitation, recording 1003 mm (39 in) of rainfall per year. It does, however, have a distinct dry season during certain months. Have a look at our detailed charts below to see how precipitation varies throughout the year.
Monthly Precipitation Levels
The average number of days each month with precipitation (> 0.2 mm (0.01 in))
Significant seasonal changes in precipitation occur throughout the year. During the wettest month, September receives substantial rainfall, averaging 148 mm (5.8 in) of precipitation, recorded across 18 rainy days.
In contrast, the driest month, March brings less rainfall, with 33 mm (1.3 in) over 14 rainy days.
September, the wettest month, has a maximum daytime temperature of 30°C (86°F). During the driest month March you can expect a temperature of 27°C (81°F). For more detailed insights into the city's temperatures, visit our Estate Thomas Temperature page.
Daily Historical Precipitation
50-year average (1976-2025)
Average daily rainfall for each day of the month based on long-term records.
Average precipitation in July
Explore Estate Thomas's Historical Precipitation: 1976-2026
Browse day-by-day precipitation records for Estate Thomas spanning 51 years. Select any month and year to see actual rainfall and snowfall recorded on each day.
Annual Rainfall in US Virgin Islands: City Comparison
The map below shows the annual precipitation across US Virgin Islands. You can also select the different months in case you are interested in a specific month.
heavy rainfall
high
moderate
low
almost none
Estate Thomas vs World: Rainfall Compared
Estate Thomas's average annual precipitation is 1003 mm (39 in). Let's compare this to some popular worldwide tourist destinations:
New York City, USA, receives 1276 mm (50 in) of rainfall annually, with precipitation evenly distributed throughout the year.
Meanwhile, Buenos Aires, Argentina, enjoys a humid subtropical climate with 1000 mm (39 in) of annual rainfall, mostly in the summer.
Adelaide, Australia, enjoys 511 mm (20 in) of annual precipitation, with dry summers and wet winters.
Mumbai, India, experiences a tropical monsoon climate with 1860 mm (73 in) of annual rainfall, with the majority of precipitation happening during the monsoon season from June to September.
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.
- The U.S. has a significant number of thunderstorms every year, with over 14.6 million taking place across the world annually.
- Approximately 70% of lightning bolts strike land rather than oceans.
- A storm named John was the longest-lasting Pacific tropical storm, continuing for 31 days. As it crossed the dateline twice, it changed status from a hurricane to a typhoon and back to a hurricane.
For more detailed information about Estate Thomas's weather, including sunshine hours, humidity levels, and temperature data, visit our Estate Thomas Climate page.
