Climate and monthly weather forecastNorth Spearfish, SD
Climate and monthly weather forecast
Weather in January
January, like December, is another subzero cold winter month in North Spearfish, South Dakota, with an average temperature ranging between min 18.5°F (-7.5°C) and max 31.5°F (-0.3°C). During January, North Spearfish records an average high-temperature of a still subzero cold 31.5°F (-0.3°C), marking a slight divergence from December's 30.9°F (-0.6°C). Weather in January »Weather in February
February, the last month of the winter in North Spearfish, is another freezing cold month, with an average temperature ranging between max 31.1°F (-0.5°C) and min 16.2°F (-8.8°C). February's climate shows a minor adjustment in average high-temperatures to a still freezing cold 31.1°F (-0.5°C) from January's 31.5°F (-0.3°C). Weather in February »Weather in March
The first month of the spring, March, is a chilly month in North Spearfish, South Dakota, with temperature in the range of an average high of 44.1°F (6.7°C) and an average low of 27.5°F (-2.5°C). North Spearfish's transition into March brings a rise in the average high-temperature, moving from a freezing cold 31.1°F (-0.5°C) in February to a chilly 44.1°F (6.7°C). Weather in March »Weather in April
April is a cool spring month in North Spearfish, South Dakota, with an average temperature varying between 33.4°F (0.8°C) and 51.4°F (10.8°C). As April arrives, a slight rise in the average high-temperature is observed, moving from a chilly 44.1°F (6.7°C) in March to a fresh 51.4°F (10.8°C). Weather in April »Weather in May
May, the last month of the spring in North Spearfish, is a comfortable month, with temperature in the range of an average low of 43.2°F (6.2°C) and an average high of 61.9°F (16.6°C). With the transition into May, North Spearfish experiences an increase in average high-temperatures, moving up from a cool 51.4°F (10.8°C) in April to a comfortable 61.9°F (16.6°C). Weather in May »Weather in June
The first month of the summer, June, is a moderately hot month in North Spearfish, South Dakota, with temperature in the range of an average low of 53.8°F (12.1°C) and an average high of 74.8°F (23.8°C). The rise of average high-temperatures is seen in June, with an increase from a comfortable 61.9°F (16.6°C) in May to a warm 74.8°F (23.8°C). Weather in June »Weather in July
July, like June, in North Spearfish, South Dakota, is a moderately hot summer month, with temperature in the range of an average high of 83.8°F (28.8°C) and an average low of 61°F (16.1°C). July is the month when North Spearfish's temperatures reach their peak, with averages of 83.8°F (28.8°C) and lows of 61°F (16.1°C). For July, the heat index is evaluated at a tropical 86°F (30°C). Weather in July »Weather in August
August, the last month of the summer in North Spearfish, is also a moderately hot month, with an average temperature varying between 81.9°F (27.7°C) and 59.4°F (15.2°C). August's weather records an average high-temperature of a still moderately hot 81.9°F (27.7°C), showing little deviation from July. Weather in August »Weather in September
September, the first month of the autumn in North Spearfish, is also an agreeable month, with an average temperature ranging between max 72.5°F (22.5°C) and min 52°F (11.1°C). The average high-temperature drops in September, from August's moderately hot 81.9°F (27.7°C) to an agreeable 72.5°F (22.5°C). Weather in September »Weather in October
October, like September, in North Spearfish, South Dakota, is a cool autumn month, with temperature in the range of an average low of 38.3°F (3.5°C) and an average high of 54.5°F (12.5°C). October marks a distinct drop in the average high-temperature, descending from September's agreeable 72.5°F (22.5°C) to a fresh 54.5°F (12.5°C). Weather in October »Weather in November
The last month of the autumn, November, is also a frosty month in North Spearfish, South Dakota, with an average temperature varying between 43.5°F (6.4°C) and 28.2°F (-2.1°C). With the onset of November, North Spearfish experiences a modest temperature adjustment, with the average high-temperature receding from a cool 54.5°F (12.5°C) in October to a frosty 43.5°F (6.4°C). Weather in November »Weather in December
The first month of the winter, December, is also a subzero cold month in North Spearfish, South Dakota, with an average temperature fluctuating between 30.9°F (-0.6°C) and 18.5°F (-7.5°C). North Spearfish notes the coldest temperatures in December, with a high average of 30.9°F (-0.6°C) and a low of 18.5°F (-7.5°C). Weather in December »Updated: Jun 11, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
With an average relative humidity of 79%, January is the most humid month.
The month with the least rainfall is January, when the rain falls for 3 days and typically collects 0.59" (15mm) of precipitation.
Throughout the year, there are 99.6 rainfall days, and 15.63" (397mm) of precipitation is accumulated.
January through May, September through December are months with snowfall.
In North Spearfish, during the entire year, snow falls for 56.8 days and aggregates up to 36.3" (922mm) of snow.
January, February, April, November and December, with an average maximum UV index of 2, are months with the lowest UV index.
With an average of 5.7h of sunshine, February has the least sunshine of the year.
On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts, and the time zone changes from MST to MDT. Daylight Saving Time ends Sunday, November 3. 2024, at 2:00 am, and the time zone reverts from MDT to MST.
The month with the most snowfall is April, when snow falls for 6 days and typically aggregates up to 7.36" (187mm) of snow.
May is the month with the most rainfall. Rain falls for 15.6 days and accumulates 2.32" (59mm) of precipitation.
June through August are months without snowfall.
With an average of 15h and 30min of daylight, June has the longest days of the year.
In North Spearfish, the peak average temperatures are observed in July, with a high of 83.8°F (28.8°C) and a low of 61°F (16.1°C).
July is the month with the highest UV index, with an average maximum UV index of 6.
With an average relative humidity of 49%, August is the least humid month in North Spearfish.
The month with the most sunshine in North Spearfish is August, with an average of 11.7h of sunshine.
With average temperatures fluctuating between a high of 30.9°F (-0.6°C) and a low of 18.5°F (-7.5°C), December stands out as the coldest month.
The month with the shortest days is December, with an average of 8h and 54min of daylight.
Average temperature
North Spearfish, SD
The warmest month (with the highest average high temperature) is July (83.8°F).
The month with the lowest average high temperature is December (30.9°F).
The month with the highest average low temperature is July (61°F).
The coldest month (with the lowest average low temperature) is February (16.2°F).
Average pressure
North Spearfish, SD
- Average pressure in January:
30.14"Hg - Average pressure in February:
30.12"Hg - Average pressure in March:
30.01"Hg - Average pressure in April:
29.92"Hg - Average pressure in May:
29.91"Hg - Average pressure in June:
29.84"Hg
- Average pressure in July:
29.89"Hg - Average pressure in August:
29.89"Hg - Average pressure in September:
29.93"Hg - Average pressure in October:
29.98"Hg - Average pressure in November:
30.05"Hg - Average pressure in December:
30.13"Hg
The month with the highest atmospheric pressure is January (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.84"Hg).
Average wind speed
North Spearfish, SD
- Average wind speed in January:
10.2mph - Average wind speed in February:
9.4mph - Average wind speed in March:
9.4mph - Average wind speed in April:
9.7mph - Average wind speed in May:
9.1mph - Average wind speed in June:
8.9mph
- Average wind speed in July:
8.1mph - Average wind speed in August:
8mph - Average wind speed in September:
8.8mph - Average wind speed in October:
10.1mph - Average wind speed in November:
9.7mph - Average wind speed in December:
9.9mph
The windiest month (with the highest average wind speed) is January (10.2mph).
The calmest month (with the lowest average wind speed) is August (8mph).
Average humidity
North Spearfish, SD
The month with the highest relative humidity is January (79%).
The month with the lowest relative humidity is August (49%).
Average rainfall
North Spearfish, SD
- Average rainfall in January:
0.59" - Average rainfall in February:
0.75" - Average rainfall in March:
1.18" - Average rainfall in April:
2.01" - Average rainfall in May:
2.32" - Average rainfall in June:
1.81"
- Average rainfall in July:
1.69" - Average rainfall in August:
1.54" - Average rainfall in September:
0.79" - Average rainfall in October:
1.5" - Average rainfall in November:
0.75" - Average rainfall in December:
0.71"
The wettest month (with the highest rainfall) is May (2.32").
The driest month (with the least rainfall) is January (0.59").
Average rainfall days
North Spearfish, SD
- Average rainfall days in January:
3 days - Average rainfall days in February:
2.9 days - Average rainfall days in March:
7.2 days - Average rainfall days in April:
12.1 days - Average rainfall days in May:
15.6 days - Average rainfall days in June:
13 days
- Average rainfall days in July:
11.3 days - Average rainfall days in August:
11.8 days - Average rainfall days in September:
7.6 days - Average rainfall days in October:
8.1 days - Average rainfall days in November:
3.5 days - Average rainfall days in December:
3.5 days
The month with the highest number of rainy days is May (15.6 days).
The month with the least rainy days is February (2.9 days).
Average snowfall
North Spearfish, SD
- Average snowfall in January:
3.31" - Average snowfall in February:
5.04" - Average snowfall in March:
5.24" - Average snowfall in April:
7.36" - Average snowfall in May:
2.64" - Average snowfall in June:
0"
The month with the highest snowfall is April (7.36").
The months with the least snowfall are June, July and August (0").
Average snowfall days
North Spearfish, SD
- Average snowfall days in January:
9.7 days - Average snowfall days in February:
11.2 days - Average snowfall days in March:
8 days - Average snowfall days in April:
6 days - Average snowfall days in May:
2.2 days - Average snowfall days in June:
0 days
- Average snowfall days in July:
0 days - Average snowfall days in August:
0 days - Average snowfall days in September:
0.1 days - Average snowfall days in October:
4.1 days - Average snowfall days in November:
6.5 days - Average snowfall days in December:
9 days
The month with the highest number of snowfall days is February (11.2 days).
The months with the least snowfall days are June, July and August (0 days).
Average daylight / Average sunshine
North Spearfish, SD
- Average daylight in January:
9h and 18min - Average daylight in February:
10h and 30min - Average daylight in March:
12h and 0min - Average daylight in April:
13h and 30min - Average daylight in May:
14h and 48min - Average daylight in June:
15h and 30min
- Average daylight in July:
15h and 6min - Average daylight in August:
14h and 0min - Average daylight in September:
12h and 30min - Average daylight in October:
11h and 0min - Average daylight in November:
9h and 36min - Average daylight in December:
8h and 54min
The month with the longest days is June (Average daylight: 15h and 30min).
The month with the shortest days is December (Average daylight: 8h and 54min).
- Average sunshine in January:
5h and 48min - Average sunshine in February:
5h and 42min - Average sunshine in March:
7h and 30min - Average sunshine in April:
9h and 6min - Average sunshine in May:
10h and 0min - Average sunshine in June:
11h and 12min
- Average sunshine in July:
11h and 36min - Average sunshine in August:
11h and 42min - Average sunshine in September:
10h and 36min - Average sunshine in October:
6h and 54min - Average sunshine in November:
6h and 24min - Average sunshine in December:
5h and 48min
The month with the most sunshine is August (Average sunshine: 11h and 42min).
The month with the least sunshine is February (Average sunshine: 5h and 42min).
Average sunshine days
North Spearfish, SD
- Average sunshine days in January:
18.3 days - Average sunshine days in February:
15.2 days - Average sunshine days in March:
17.4 days - Average sunshine days in April:
12.8 days - Average sunshine days in May:
12.7 days - Average sunshine days in June:
13.7 days
- Average sunshine days in July:
14.8 days - Average sunshine days in August:
14.6 days - Average sunshine days in September:
20.1 days - Average sunshine days in October:
18.2 days - Average sunshine days in November:
20.3 days - Average sunshine days in December:
19.9 days
The month with the most sunshine days is November (20.3 days).
The month with the least sunshine days is May (12.7 days).
Average UV index
North Spearfish, SD
The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are January, February, April, November and December (UV index 2).
Average cloud cover
North Spearfish, SD
The month with the most cloud cover is February (Cloud cover 41).
The month with the least cloud cover is August (Cloud cover 16).
Average visibility
North Spearfish, SD
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
