Climate Chart of Jyväskylä, Finland

Climate overview

Temperature

The monthly mean temperature is lowest in January, at -6.0 °C, and highest in July, at 17.1 °C. These are monthly averages, not daytime maximum temperatures, so they describe the overall monthly conditions rather than the warmest or coldest moments visitors might encounter. Across the calendar-month means, the unweighted mean temperature is 5.0 °C. This provides a broad summary, but does not represent a day-weighted annual average or show how much temperatures vary from day to day.

Rain

Mean daily rainfall is lowest in February, at 0.17 mm/day, and highest in July, at 2.91 mm/day. These are daily averages for each month, not monthly rainfall totals; the lower average does not guarantee rain-free days, and the higher one does not indicate how often rain falls. The unweighted mean of the monthly mean daily rainfall values is 1.39 mm/day. It offers a compact overview of the figures, but cannot describe the timing or frequency of rain on particular days.

Snow

Mean daily snowfall is highest in January, at 10.21 mm/day, while the unweighted mean across the monthly daily averages is 4.25 mm/day. These amounts do not establish the number of snowy days, snow depth or snow cover, so they cannot by themselves indicate whether snow-related activities will be possible during a visit.

Sunshine

Mean daily sunshine reaches its high in June, at 12.89 hours/day, and its low in December, at 0.27 hours/day. These averages can help frame expectations for outdoor daylight planning, but sunshine duration is not the same as day length and does not guarantee conditions on a specific day. The unweighted mean across the monthly sunshine averages is 6.28 hours/day per day. It summarizes the monthly figures without indicating how sunshine is distributed across individual days.