The highest day temperature in March 2025 was 63°F. The lowest night temperature was 28°F. The average values for day and night temperatures during March were 57.0°F и 43.1°F respectivly.

Most of the days in March are sunny but you can also expect cloudy and gloomy days.

Precipitation total in March for Siena is 1.9 in.

The average wind speed in March is 6.7 mph. This value is relatively stable throughout the year.

We are using day length and cloud cover information for each day of the month to calculate averages for this chart. Average sunny hours for Siena in March is 7.4 hours.