Weather in Spearfish: May
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Average day temperature: | 62.2°F |
| Average night temperature: | 47.2°F | |
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Number of sunny days: | 12 days |
| Day length: | 14.3 - 15.3 hours | |
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Number of rainy days: | 3 days |
| Precipitation totals: | 1.2 in. | |
| more information | ||
14 days
forecast
forecast
| Spearfish |
weather in
June
June
| Spearfish |
Air temperature in May, °F
Show year:
2025
2024
2023
The highest day temperature during May of 2025 was 90°F. At the same time the lowest night temperature was 34°F. Daily and nightly averages during May were 64.1°F and 47.2°F.
Sunny, partly cloudy and cloudy days
Number of sunny, partly cloudy and cloudy days in May is almost equal.
Precipitation total in May, in.
Precipitation total value in Spearfish in May is 1.2 in. Other months of the year show relatively similar values.
Wind speed in May, mph
The average wind speed value in May is 9.5 mph It makes May one of the most windy months of the year.
Average sunny hours
This chart shows average number of hours during the day when sunlight can reach the ground. It depends on day length and cloudiness during the day. The average number of sunny hours in May is: 8.7.
Best time for vacation in Spearfish
Spearfish on a weather map
Places in USA:
Name
°F
24 Hours Forecast
Spearfish
Local time: 04:36
December 26, friday
0600
45°F
NE
10 mph
10 mph
0900
39°F
NE
13 mph
13 mph
1200
48°F
NE
15 mph
15 mph
1500
54°F
NE
19 mph
19 mph
1800
50°F
E
16 mph
16 mph
2100
46°F
NE
16 mph
16 mph
December 27, saturday
0000
45°F
NE
16 mph
16 mph
0300
43°F
NE
15 mph
15 mph
