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In terms of precipitation, rainfall in Omsk ranges from 0.0 - 2.4 inches per month. July is typically the wettest month, when rainfall can reach 2.4 in. February is typically the driest time to visit Omsk when rainfall is around 0.0 in.
If weather is an important factor for your trip to Omsk, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 68.0 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 3.2 F).