Contents
- Weather in January
- Frequently asked questions
- Average temperature in January
- Average pressure in January
- Average wind speed in January
- Average humidity in January
- Average rainfall in January
- Average rainfall days in January
- Average snowfall in January
- Average snowfall days in January
- Average daylight in January
- Average sunshine in January
- Average sunshine days in January
- Average UV index in January
- Average cloud cover in January
- Average visibility in January
Weather in January
Temperature
North Spearfish observes a minor difference in average high-temperatures between December's 30.9°F (-0.6°C) and January's 31.5°F (-0.3°C). In North Spearfish, January nights cool down to an average of 18.5°F (-7.5°C).Humidity
With an average relative humidity of 79%, January is the most humid month in North Spearfish.Rainfall
The month with the least rainfall in North Spearfish is January, when the rain falls for 3 days and typically collects 0.59" (15mm) of precipitation.Snowfall
Months with snowfall are January through May, September through December. In North Spearfish, during January, snow falls for 9.7 days and regularly aggregates up to 3.31" (84mm) of snow. In North Spearfish, during the entire year, snow falls for 56.8 days and aggregates up to 36.3" (922mm) of snow.Daylight
The average length of the day in January in North Spearfish is 9h and 17min.On the first day of January in North Spearfish, sunrise is at 7:31 am and sunset at 4:26 pm. On the last day of the month, sunrise is at 7:15 am and sunset at 5:02 pm MST.
Sunshine
In North Spearfish, the average sunshine in January is 5.8h.UV index
January, February, April, November and December, with an average maximum UV index of 2, are months with the lowest UV index in North Spearfish. A UV Index value of 2, and less, symbolizes a low health risk from exposure to the Sun's UV rays for ordinary individuals.Note: In January, an average UV index of 2 transforms into the following instructions:
Sun exposure does not present considerable issues for many, yet infants, fair-skinned people, and children necessitate constant protection. The Sun is most powerful around mid-day, so it's a good practice to reduce direct exposure. Wearing a wide-brim hat can block approximately 50% of UV radiation, protecting the eyes. Mind this! Nearly twice the UV radiation from the Sun can be reflected by the snow.
Frequently asked questions
How cold is January in North Spearfish?
What is the most humid month in North Spearfish?
What is the average humidity in January in North Spearfish?
What is the driest month in North Spearfish?
How many days does it rain in January in North Spearfish?
How much does it snow in North Spearfish in January?
What is the average length of the day in January in North Spearfish?
When is the sunrise / sunset in January in North Spearfish?
How long on average sun shines in January in North Spearfish?
What are the months with the lowest UV index in North Spearfish?
What is the UV index reading in January in North Spearfish?
Average temperature in January
North Spearfish, SD
- Average high temperature in January: 31.5°F
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).
- Average low temperature in January: 18.5°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 in January
North Spearfish, SD
- Average pressure in January: 30.14"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 in January
North Spearfish, SD
- Average wind speed in January: 10.2mph
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 in January
North Spearfish, SD
- Average humidity in January: 79%
The month with the highest relative humidity is January (79%).
The month with the lowest relative humidity is August (49%).
Average rainfall in January
North Spearfish, SD
- Average rainfall in January: 0.59"
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 in January
North Spearfish, SD
- Average rainfall days in January: 3 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 in January
North Spearfish, SD
- Average snowfall in January: 3.31"
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 in January
North Spearfish, SD
- Average snowfall days in January: 9.7 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 in January /
Average sunshine in January
North Spearfish, SD
- Average daylight in January: 9h and 2min
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 5min
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 in January
North Spearfish, SD
- Average sunshine days in January: 18.3 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 in January
North Spearfish, SD
- Average UV index in January: 2
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 in January
North Spearfish, SD
- Average cloud cover in January: 40
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 in January
North Spearfish, SD
- Average visibility in January: 6mi
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).
North Spearfish, South Dakota, USA
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