Omsk Monthly Rainfall & Precipitation
This page shows both the average monthly rainfall and the number of rainy days in Omsk, Omsk Oblast, Russia. These values are calculated using 30 years of data (1990–2020) to ensure accuracy. Now, let's break down all the details for a clearer picture.
Omsk maintains relatively dry conditions year-round, with an average annual precipitation of 469 mm (18 in). However, it does have a distinct dry season during certain months, creating distinct seasonal patterns visible in our monthly breakdown below.
Monthly Precipitation Levels
The average number of days each month with precipitation (> 0.2 mm (0.01 in))
The climate in Omsk shows significant variation throughout the year. Expect 66 mm (2.6 in) of precipitation during the wettest month July, distributed over 13 rainy days.
In contrast, February offers drier and sunnier days, with around 21 mm (0.8 in) of snowfall over 12 snowy days.
July, the wettest month, has a maximum daytime temperature of 26°C (79°F). The city receives 322 hours of sunshine in this period. During the driest month February you can expect a temperature of -10°C (14°F). For more detailed insights into the city's temperatures, visit our Omsk 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 June
Explore Omsk's Historical Precipitation: 1976-2026
Browse day-by-day precipitation records for Omsk spanning 51 years. Select any month and year to see actual rainfall and snowfall recorded on each day.
Annual Rainfall in Russia: City Comparison
The map below shows the annual precipitation across Russia. You can also select the different months in case you are interested in a specific month.
heavy rainfall
high
moderate
low
almost none
Omsk vs World: Rainfall Compared
Omsk's average annual precipitation is 469 mm (18 in). Let's compare this to some popular worldwide tourist destinations:
The city of Rome, Italy, has an average annual precipitation of 832 mm (33 in), spread fairly evenly throughout the year.
Osaka, Japan, experiences 1507 mm (59 in) of rainfall annually, spread across the year with wetter summers.
In Tokyo, Japan, the average annual precipitation is 1528 mm (60 in), with significant summer rains due to typhoon season.
Kuala Lumpur, Malaysia, receives 2529 mm (100 in) of annual rainfall, characteristic of its equatorial tropical rainforest climate, with consistent rainfall throughout the year and peak months during March and November.
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.
- "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 Omsk's weather, including sunshine hours, humidity levels, and temperature data, visit our Omsk Climate page.
