Allen Monthly Rainfall & Precipitation

This page shows both the average monthly rainfall and the number of rainy days in Allen, Río Negro, Argentina. These values are calculated using 30 years of data (1990–2020) to ensure accuracy. Now, let's explore all the details to give you a full picture.

Allen tends toward drier weather patterns, receiving approximately 260 mm (10 in) of rain/snow per year. The city experiences a distinct dry season during certain months, contributing to seasonal contrasts shown in the charts below.

Monthly Precipitation Levels

The average number of days each month with precipitation (> 0.2 mm (0.01 in))

The climate in Allen shows significant variation throughout the year. Expect 33 mm (1.3 in) of precipitation during the wettest month October, distributed over 4 rainy days.

In contrast, August offers drier and sunnier days, with around 14 mm (0.6 in) of rainfall over 3 rainy days.

October, the wettest month, has a maximum daytime temperature of 23°C (73°F). The city receives 260 hours of sunshine in this period. During the driest month August you can expect a temperature of 16°C (61°F). For more detailed insights into the city's temperatures, visit our Allen Temperature page.

Annual Rainfall in Argentina: City Comparison

The map below shows the annual precipitation across Argentina. You can also select the different months in case you are interested in a specific month.

Allen vs World: Rainfall Compared

Allen's average annual precipitation is 260 mm (10 in). Let's compare this to some popular worldwide tourist destinations:

In Lisbon, Portugal, the average annual precipitation is 774 mm (30 in), characterized by wet winters and dry summers typical of the Mediterranean climate.

Meanwhile, Buenos Aires, Argentina, enjoys a humid subtropical climate with 1000 mm (39 in) of annual rainfall, mostly in the summer.

In Tokyo, Japan, the average annual precipitation is 1528 mm (60 in), with significant summer rains due to typhoon season.

Singapore, situated near the equator, gets 2581 mm (102 in) of rainfall annually, with no distinct dry season and consistent monthly precipitation.

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 proximity of a location to a large body of water can significantly affect its rainfall patterns:

• Ocean Influence: Coastal regions typically receive more rainfall due to the presence of moisture-laden winds from the ocean. These regions tend to have more humid climates and experience more frequent precipitation, especially in winter.
• Continental Climates: Areas further from the sea, such as inland or continental regions, experience less frequent rainfall and more extreme seasonal variations in precipitation.

• 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 Allen's weather, including sunshine hours, humidity levels, and temperature data, visit our Allen Climate page.