Ulaanbaatar Monthly Rainfall & Precipitation

This page shows both the average monthly rainfall and the number of rainy days in Ulaanbaatar, Mongolia. 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.

Ulaanbaatar tends toward drier weather patterns, receiving approximately 356 mm (14 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 Ulaanbaatar shows significant variation throughout the year. Expect 72 mm (2.8 in) of precipitation during the wettest month August, distributed over 16 rainy days.

In contrast, January offers drier and sunnier days, with around 3.6 mm (0.1 in) of snowfall over 3 snowy days.

August, the wettest month, has a maximum daytime temperature of 22°C (72°F). The city receives 259 hours of sunshine in this period. During the driest month January you can expect a temperature of -15°C (5°F). For more detailed insights into the city's temperatures, visit our Ulaanbaatar Temperature page.

Ulaanbaatar's average annual precipitation is 356 mm (14 in). Let's compare this to some popular worldwide tourist destinations:

In Toronto, Canada, annual precipitation averages 964 mm (38 in), with snowy winters and rainy summers.

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

Melbourne, Australia, has 690 mm (27 in) of rainfall annually, spread fairly evenly throughout the year.

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.

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