Climate Insights for Ames Airport

The climate in Ames Airport is temperate. The average annual temperature is 13°C and approximately 1104mm of precipitation falls per year. December is the wettest month, receiving around 180mm of rainfall. Ames Airport is in the Northern Hemisphere. Summer begins at the end of June and lasts through September. The summer months are: August, July, September. The coldest months are February, January, December, when temperatures can drop to 3°C. Light snow can occur between January and December.

Temperatures in Ames Airport vary considerably across the year, with a 28°C difference between the coldest and warmest months. The warmest month is August, when average highs reach 31°C and the mean temperature sits around 22°C. February is the coolest month, with minimum temperatures around 3°C and an average of 6°C. On average, daily temperatures fluctuate by about 11°C between overnight lows and afternoon highs. The sharpest temperature change occurs between September and October, with a 5°C shift in average temperatures.

Ames Airport is a moderately rainy area, receiving approximately 1104mm of precipitation annually, which averages out to around 92mm per month. The wettest month is December, averaging 180mm of rainfall. January and November also tend to see above-average precipitation. The driest month is July, with just 4mm. That's 176mm less than December, the wettest month. Rainfall is heavily concentrated in certain months, creating a distinct wet and dry season. Visitors should plan around these patterns, as the difference between peak and low months is dramatic. Light snowfall can occur between January and December, totalling around 14cm annually. February is the snowiest month with approximately 6cm.

Ames Airport is relatively calm, with an average annual wind speed of 9km/h. For context, sustained winds below 12km/h are generally light, while anything above 25km/h is considered strong. The windiest month is January, averaging 10km/h, though still comfortable for most outdoor activities. The calmest conditions occur in September, with average winds dropping to 8km/h, making it an ideal period for wind-sensitive activities. Wind conditions are fairly consistent throughout the year, varying by only 2km/h between the calmest and windiest months.

It is currently summer in Ames Airport, which began on June 21, 2026. Ames Airport 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 August at around 31°C, while the coldest stretch bottoms out in February near 3°C. Autumn is next, beginning on September 23, 2026 (7 days from now).

The best time to visit Ames Airport is during June, July, August and September, when the weather is most comfortable for travellers. During these months, average temperatures hover around 20°C with modest rainfall averaging 21mm per month. By contrast, February can be quite cold with temperatures dropping to 3°C. With minimal rainfall expected, you can pack light and plan outdoor activities with confidence.

The table below shows monthly climate averages for Ames Airport 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.