The highest day temperature in February 2026 was 66°F. The lowest night temperature was -1°F. The average values for day and night temperatures during February were 47.2°F и 32.1°F respectivly.

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

Precipitation total in February for Spearfish is 0.2 in. It makes february one of the least rainy months of the year.

The average wind speed in February is 8.9 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 Spearfish in February is 6.5 hours.