New Ulm, Minnesota, experiences a diverse range of weather patterns throughout the year, offering residents and visitors a taste of all four seasons. Understanding these patterns can help us better prepare for and appreciate the unique climate of our region.
Winter: Cold and Snowy
Winters in New Ulm are characterized by freezing temperatures and snowfall. January is typically the coldest month, with average high temperatures around 20.7°F (-6.3°C) and lows near 7°F (-13.9°C). Snowfall is common, with February often seeing the highest accumulation, averaging 2.2 inches (56mm) over eight days. Residents should be prepared for icy conditions and ensure their homes and vehicles are winter-ready.
Spring: Gradual Warming
As spring arrives, temperatures gradually increase. March sees average highs of 42°F (5.6°C) and lows of 24°F (-4.4°C). By May, temperatures are more comfortable, with highs around 73°F (22.8°C) and lows near 48°F (8.9°C). This season also brings increased rainfall, with May averaging 3.43 inches (87mm) over 13.6 days. It’s an ideal time for planting gardens and enjoying the blooming landscapes.
Summer: Warm and Humid
Summers are warm and can be humid, with July being the hottest month. Average highs reach 84°F (28.9°C), and lows are around 62°F (16.7°C). Thunderstorms are common during this period, contributing to the average monthly rainfall of 3.98 inches (101mm) over 11.7 days. Residents often take advantage of the numerous parks and outdoor activities available during these warmer months.
Fall: Cooling Temperatures
Fall brings a gradual cooling, with September averaging highs of 74°F (23.3°C) and lows of 51°F (10.6°C). By November, temperatures drop further, with highs around 41°F (5°C) and lows near 25°F (-3.9°C). Rainfall decreases during this season, making it a pleasant time for outdoor activities and enjoying the changing foliage.
Environmental Considerations
New Ulm’s climate influences various environmental factors. The city has implemented a Storm Water Pollution Prevention Plan (SWPPP) to minimize pollutant discharge into the storm sewer system, protecting water quality in accordance with the Federal Clean Water Act. Residents are encouraged to report any illicit discharges to the New Ulm Engineering Department to help maintain the health of our local waterways.
Understanding our local climate not only helps us prepare for seasonal changes but also fosters a greater appreciation for the natural environment that surrounds us in New Ulm.

