Keystone, South Dakota, United States of America: What to pack, what to wear, and when to go [2018]

Traveling to Keystone, South Dakota, United States of America? If you're planning to go to Keystone, here is some important information about when to go, what to wear, and what to pack:

When to go to Keystone, South Dakota, United States of America

Based on the climate and weather in Keystone, the best time to go is August. See below for details.

What to wear/what to pack for Keystone, South Dakota, United States of America by month

January

January here is freezing. Temperatures average in the 30s F (single digits C) during the day.

What to wear/what to pack:

  • Waterproof coat
  • Waterproof boots
  • Extreme cold weather gear
  • Neck gaiter
  • Goggles for eye protection
  • High performance gloves
  • Fleece for under jacket
  • Thermal undergarments
  • Umbrella
  • Coveralls
  • Insulated boots
  • Thick pajamas
  • Multiple layer jacket shell

February

February for Keystone can be brisk. Temperatures average in the low 40s F (single digits C) during the day. It rains or snows sometimes.

What to wear/what to pack:

  • Sweaters
  • Scarf
  • Very heavy socks
  • Thermal undergarments
  • Insulated boots
  • Multiple layer jacket shell
  • Gloves
  • Waterproof boots
  • Fleeces
  • Umbrella
  • Waterproof coat
  • Pajamas, such as sweats

March

If you are traveling to Keystone in March, you will notice that it can be very chilly. Expect it to rain or snow occasionally. Daytime temperatures are in the 40s F (single digits C).

What to wear/what to pack:

  • Heavy jacket
  • Sweaters
  • Waterproof coat
  • Gloves or mittens
  • Heavy socks
  • Umbrella
  • Warm pants or jeans
  • Cold weather footwear
  • Waterproof boots

April

Traveling to Keystone in April, you will notice that it is pretty cool. Expect it to rain or snow a bit less than half of the time. Daytime temperatures are in the low 50s F (low 10s C).

What to wear/what to pack:

  • Gloves or mittens
  • Waterproof boots
  • Heavy socks
  • Sweaters
  • Warm pants or jeans
  • Cold weather footwear
  • Umbrella
  • Waterproof coat
  • Heavy jacket

May

If you vacation in Keystone during May, you are likely to find that it is chilly. Temperatures tend to hover around the low 60s F (high 10s C) during the day, while at night they can dip into the high 30s F (single digits C).

In terms of precipitation, you can expect it to rain regularly.

What to wear/what to pack:

  • Waterproof luggage
  • Warm pants or jeans
  • Umbrella
  • Standard footwear
  • Socks
  • Jacket or coat
  • Waterproof footwear
  • Rain coat
  • Fleeces
  • Light gloves or mittens

June

June in Keystone is balmy. The average overnight temperatures in the area are in the high 40s F (single digits C).

What to wear/what to pack:

  • Sunscreen lotion
  • Long and short sleeve shirts
  • Light footwear
  • Waterproof footwear
  • Shorts or short pants
  • Sandals
  • Skirts
  • Waterproof luggage
  • Dresses
  • Rain coat
  • Umbrella

July

If you vacation in Keystone during July, you are likely to find that it is warm. Temperatures tend to hover around the high 70s F (mid 20s C) during the day, while at night they can dip into the low 50s F (low 10s C).

In terms of precipitation, you can expect it to rain a bit less than half of the time.

What to wear/what to pack:

  • Light footwear
  • Waterproof luggage
  • Umbrella
  • Shorts or short pants
  • Waterproof footwear
  • Sunscreen lotion
  • Rain coat
  • Dresses
  • Long and short sleeve shirts
  • Sandals
  • Skirts

August

August is a perfect temperature. Temperatures average in the high 70s F (mid 20s C) during the day. It rains 5-10 days this month.

What to wear/what to pack:

  • Light footwear
  • Skirts
  • Sandals
  • Dresses
  • Waterproof footwear
  • Shorts or short pants
  • Waterproof luggage
  • Long and short sleeve shirts
  • Rain coat
  • Umbrella
  • Sunscreen lotion

September

September for Keystone is mild. Temperatures average in the low 70s F (low 20s C) during the day. It rains once in a while.

What to wear/what to pack:

  • Shorts or short pants
  • Light footwear
  • Waterproof footwear
  • Skirts
  • Waterproof luggage
  • Umbrella
  • Rain coat
  • Sandals
  • Sunscreen lotion
  • Long and short sleeve shirts
  • Dresses

October

October in Keystone is cool. The average overnight temperatures in the area are in the low 30s F (single digits below 0 C).

What to wear/what to pack:

  • Waterproof boots
  • Waterproof coat
  • Warm pants or jeans
  • Fleeces
  • Standard footwear
  • Socks
  • Jacket or coat
  • Umbrella
  • Light gloves or mittens

November

November is cold. Temperatures average in the low 40s F (single digits C) during the day.

What to wear/what to pack:

  • Fleeces
  • Gloves
  • Scarf
  • Sweaters
  • Umbrella
  • Multiple layer jacket shell
  • Insulated boots
  • Very heavy socks
  • Thermal undergarments
  • Pajamas, such as sweats
  • Waterproof coat
  • Waterproof boots

December

If you are traveling to Keystone in December, you will notice that it can be very chilly. Daytime temperatures are in the high 30s F (single digits C).

What to wear/what to pack:

  • Gloves
  • Umbrella
  • Scarf
  • Sweaters
  • Multiple layer jacket shell
  • Very heavy socks
  • Insulated boots
  • Fleeces
  • Waterproof coat
  • Thermal undergarments
  • Waterproof boots
  • Pajamas, such as sweats

Year-round what to wear/what to pack for Keystone, South Dakota, United States of America

Here are some general tips on what to wear in Keystone, as well as several items to remember to pack when traveling there.

  • A plug adadpter that supports outlet types A and B
  • A SIM card that works in Keystone

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