Climate Chart of Des Moines, USA

Monthly data: Temperature °C, Rain (mm), Sunshine (h) · 2013–2023

Climate overview

Temperature

Monthly mean temperature is lowest in January at -5.2 °C, then reaches its highest monthly mean in July at 24.4 °C. These are averages for each month, not daytime maximum temperatures, and do not describe the range visitors may encounter from day to day. Across the calendar months, the unweighted mean of the monthly mean temperatures is 10.6 °C. It summarizes the monthly figures without weighting them by the number of days in each month.

Rain

Mean daily rainfall is highest in May at 4.46 mm/day, a useful signal for visitors to allow for rain when making plans. The lowest monthly mean is in January at 0.48 mm/day; this indicates the lower-rainfall option by average amount, but does not guarantee dry days or show how frequently rain occurs. The unweighted mean of the monthly mean daily rainfall figures is 2.33 mm/day. These are daily averages, not monthly rainfall totals.

Sunshine

Mean daily sunshine duration reaches its highest monthly value in July at 12.10 hours/day, while its lowest is in December at 5.47 hours/day. The figures can help with planning daylight outdoor activities, but sunshine duration is not the same as day length. The unweighted mean across the monthly mean sunshine durations is 8.56 hours/day per day; it is a summary of monthly averages rather than a day-weighted annual figure.

Snow

Mean daily snowfall reaches its highest monthly value in February at 5.66 mm/day. The unweighted mean of the monthly mean daily snowfall figures is 1.67 mm/day; these averages do not establish the number of snowy days, snow depth, snow cover, or skiing conditions.

Best Travel Time Guide for Des Moines, USA: Ideal Seasons and Weather Insights

Visitors prioritising cooler monthly mean temperatures can use January, when the mean is -5.2 °C, as a criterion for choosing when to visit; this does not describe daytime highs or guarantee the conditions on travel dates. For lower average rainfall, January is the conditional option, with mean daily rainfall of 0.48 mm/day. Rain preparation is still sensible, particularly with the highest monthly mean daily rainfall in May at 4.46 mm/day; monthly averages cannot tell you whether rain will fall on a particular day or how often it occurs.

For outdoor sightseeing planned around average sunshine duration, July has the highest monthly mean at 12.10 hours/day, while December has the lowest at 5.47 hours/day. These figures may inform daylight activity planning, but sunshine hours do not indicate day length or guarantee clear skies. The highest monthly mean daily snowfall is recorded in February at 5.66 mm/day. This snowfall average alone cannot establish snowy-day frequency, snow cover, depth, or whether conditions suit snow-based activities, so it should not be used as a guarantee of such conditions.

Climate Data Overview for Des Moines, USA

Explore the comprehensive climate data for Des Moines, USA. This detailed table provides valuable insights into temperature variations, precipitation levels, and seasonal changes, helping you understand the unique weather patterns of this region.

• See also climate change in Des Moines
• Explore the climate in USA