Climate Insights for Anamosa

The climate in Anamosa is temperate. The average annual temperature is 10°C and approximately 1006mm of precipitation falls per year. Anamosa receives a notable amount of rainfall throughout the year, including during its driest month. Anamosa is in the Northern Hemisphere. Summer begins at the end of June and lasts through September. The summer months are: July, June, August. The coldest months are January, February, December, when temperatures can drop to -9°C. Snowfall occurs from January to December, with around 68cm accumulating over the season.

Anamosa has a wide annual temperature range, spanning 38°C from the coldest to warmest months. The warmest month is July, when average highs reach 29°C and the mean temperature sits around 24°C. The coldest month is January, when overnight lows fall to -9°C and the daily average is -6°C. On average, daily temperatures fluctuate by about 10°C between overnight lows and afternoon highs. The sharpest temperature change occurs between September and October, with a 8°C shift in average temperatures.

Anamosa is a moderately rainy area, receiving approximately 1006mm of precipitation annually, which averages out to around 84mm per month. The wettest month is May, averaging 123mm of rainfall. June and April also tend to see above-average precipitation. The driest month is February, with just 45mm. That's 78mm less than May, the wettest month. Precipitation varies noticeably between seasons, with the first half (January to June) of the year generally seeing more rainfall. Snowfall is a regular feature from January to December, with around 68cm accumulating over the season. January typically sees the most snow at around 20cm.

Anamosa is moderately windy, with an average annual wind speed of 22km/h. For context, sustained winds below 12km/h are generally light, while anything above 25km/h is considered strong. The windiest month is April, averaging 26km/h, noticeable enough to affect lighter outdoor activities. The calmest conditions occur in July, with average winds dropping to 17km/h, making it an ideal period for wind-sensitive activities. There is moderate seasonal variation in wind speed, with a 9km/h gap between the calmest and windiest months. Wind tends to be stronger during winter months, driven by seasonal pressure systems. The seasonal averages break down to 23km/h in winter, 24km/h in spring, 18km/h in summer, 22km/h in autumn.

It is currently spring in Anamosa, which began on March 20, 2026. Anamosa is in the Northern Hemisphere, where spring begins in March, summer in June, autumn in September, and winter in December. The warmest period peaks in July at around 29°C, while the coldest stretch bottoms out in January near -9°C. Summer is next, beginning on June 21, 2026 — 88 days from now.

The best time to visit Anamosa is during July and August, when the weather is most comfortable for travellers. During these months, average temperatures hover around 23°C with modest rainfall averaging 90mm per month. By contrast, January can be quite cold with temperatures dropping to -9°C. Despite being the best months overall, some rain is still likely — pack a waterproof layer and plan a mix of indoor and outdoor activities.

The table below shows monthly climate averages for Anamosa based on historical weather data. Min and max temperatures represent typical overnight lows and afternoon highs for each month, shown in degrees Celsius (°C). Precipitation is measured in millimetres (mm) and indicates the average total rainfall per month. Snow is measured in centimetres (cm) and reflects average monthly snowfall accumulation. Wind speed is the average sustained speed in kilometres per hour (km/h). All values are based on averages from over 10 years of historical weather data. The current month is highlighted for quick reference.