Historical weather data, all-time temperature records, and monthly climate averages for Richfield, MN. Explore typical weather conditions by week for trip planning, and see how today compares to the historical record.
April 4 in Richfield runs cool, with an average high of just 49° and a low near freezing at 31°. But the range is wild — this date has seen 77° sunshine (2021) and a brutal 5° low back in 1995. There's a 1-in-6 chance of snow today, so don't put the winter coat away just yet.
Richfield's weather has real teeth on both ends — the all-time high hit a scorching 105° in July 1988, while the coldest recorded day bottomed out at -34° in January 1970, a swing of 139 degrees. The wettest single day on record dumped 9.15 inches in July 1987, and an extraordinary 37 inches of snow fell in a single day on February 6, 2026.
Summer is the sweet spot, with the warmest week of the year (July 9–15) averaging a pleasant 84° high — ideal for anyone planning a visit. Winter is legitimately harsh, with early January highs averaging just 22°. If you're watching for rain, late June is the wettest stretch of the year, averaging over an inch of precipitation in a single week.