Keystone, South Dakota, United States of America: What to pack, what to wear, and when to go [2022]
Traveling to Keystone, South Dakota, United States of America? If you're planning to go to Keystone, we've got some important information about when to go, what to wear, and what to pack.
Contents
- When to go to Keystone
- Important essentials for Keystone
- Activities for Keystone
- Keystone in January: weather and what to pack
- Keystone in February: weather and what to pack
- Keystone in March: weather and what to pack
- Keystone in April: weather and what to pack
- Keystone in May: weather and what to pack
- Keystone in June: weather and what to pack
- Keystone in July: weather and what to pack
- Keystone in August: weather and what to pack
- Keystone in September: weather and what to pack
- Keystone in October: weather and what to pack
- Keystone in November: weather and what to pack
- Keystone in December: weather and what to pack

About your travel guide
Hi! I'm Dev. I've traveled all over the world and in my travels, I have made many packing lists. In this series, my team and I have compiled the most useful information, as well as things we couldn't live without, to help you plan your trip.
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.
Important essentials 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.
COVID-19 ESSENTIALS FOR 2022
-
Travel disinfecting wipes
Use these to sanitize plane and hotel surfaces.
-
A vaccine card protector
Vaccine cards may get worn. An unreadable vaccination card can have severe consequences. This vaccine card protector helps avoid that.
Travel insurance
If you or a companion get COVID-19, your amazing trip can be ruined. Good travel insurance can help. See plans
-
Kids' KN95 masks
N95 masks don't exist for kids. These are a good alternative (and can also be used by adults if N95 masks are not available).
-
Hand sanitizer
This hand sanitizer is a good plane-friendly option.
-
N95 masks to use in crowded airports
These N95 masks provide the best level of COVID-19 protection possible.
General health necessities
Don't forget these
-
Plug adapter
A plug adapter that supports outlet types A and B. This one is sufficent for most countries, but you may want to check with your hotel.
-
Airplane or car necessities
-
Voice and data SIM card
A SIM card that works in Keystone. A good global SIM card works in most countries, but check the country list before buying.
-
For families with young children
-
Money/passport pouch
A money pouch is vital for protecting your passport and credit cards.
-
Power bank for devices
A portable power bank, like this one
What to wear/what to pack for Keystone, South Dakota, United States of America by month
Already know when you're traveling?
January
January in Keystone is frosty. The average overnight temperatures in the area are in the single digits F (10+ below zero C).
What to wear/what to pack:
-
Night cap
It's suggested to wear a head warmer at night here like this
-
Extreme weather jacket shell
These are an excellent value:
-
Extreme cold weather gear
-
Lip balm
Our pick: this
-
Thick pajamas
-
Fleece for under jacket
-
Heated socks.
We've found
these to be the best
-
Heated gloves
-
Insulated water bottle
Our pick:
-
Neck gaiter/cold weather face mask
-
Thermal undergarments
Our picks:
-
Coveralls
We love:
-
Goggles for eye protection
-
Insulated boots
The best value
-
Waterproof snow boots
In addition to day-to-day shoes, it's important to bring snow boots. For visiting Keystone (South Dakota), we suggest these boots:
-
Waterproof jacket that can be used in snow
-
A wind resistant umbrella
This is worth investing in for this weather. This one is a great option.
February
February in this region can be brisk. Temperatures average in the low 40s F (single digits C) during the day. It rains or snows occasionally.
What to wear/what to pack:
-
Lip balm
The best option: this
-
Pajamas
-
Very heavy heated socks
Like these
-
Thermal undergarments
Our choice is:
-
Extreme weather jacket shell
These are a great value:
-
Insulated ice boots
We use:
-
Coveralls/snow pants
Here are some of our favorites:
-
Fleece inner layer
-
Scarf/neck warmer
-
Heavy sweaters
-
Extreme cold weather gloves
-
Waterproof snow boots
In addition to regular shoes, it's important to bring snow boots. For travel to Keystone (South Dakota), we suggest these boots:
-
Waterproof jacket that can be used in snow
-
A umbrella
This is essential in this type of weather. This one is a great option.
March
Traveling to Keystone in March, you will notice that it can be brisk. Expect it to rain or snow occasionally. Daytime temperatures are in the 40s F (single digits C).
What to wear/what to pack:
-
Warm pants or jeans
-
Insulated water bottle
Our fave:
-
Sweaters
-
Heavy socks
Such as:
-
Heavy jacket
-
Lip balm
Our choice: this one
-
Gloves
-
Cold weather footwear
-
Waterproof snow boots
In addition to day-to-day footwear, you should bring snow boots. For traveling to Keystone (South Dakota), we suggest these boots:
-
Waterproof jacket that can be used in snow
-
A windproof umbrella
This is vital here. This one is an excellent choice.
April
April in Keystone can be brisk. The rain/snow can amount to several inches/centimeters. During this time, temperatures average in the low 30s F (single digits C) to low 50s F (low 10s C).
What to wear/what to pack:
-
Warm pants or jeans
-
Sweaters
-
Heavy socks
Such as:
-
Gloves
-
Insulated water bottle
Our best choice:
-
Heavy jacket
-
Lip balm
Our pick: this one
-
Cold weather footwear
-
Waterproof snow boots
In addition to regular shoes, it's important to bring snow boots. For visiting Keystone (South Dakota), a great option is these boots:
-
Waterproof jacket that can be used in snow
-
A windproof umbrella
This is worth investing in for this weather. This one is a perfect option.
May
May in Keystone is cool. The rain can amount to several inches/centimeters. During this time, temperatures average in the low 50s F (low 10s C) to low 60s F (high 10s C), although night temperatures can dip into the low 30s F (single digits C).
What to wear/what to pack:
-
Light gloves or mittens
-
Extra socks
-
Jacket or coat
-
Fleece
-
Lip balm
In our opinion, the best pick: this
-
Warm pants or jeans
-
Standard footwear
-
A rain jacket to layer with a jacket
-
100% waterproof footwear
We suggest these rain boots:
-
Rain pants
Rain pants are a lifesaver in a storm.
-
Waterproof phone bag
-
Windproof umbrella
This one is a great option.
-
Waterproof bag/luggage cover
So your suitcases don't get wet. We like:
June
June in Keystone is balmy. The rain can amount to several inches/centimeters. During this time, temperatures average in the low 70s F (low 20s C), although night temperatures can dip into the low 30s F (single digits C).
What to wear/what to pack:
-
Light dresses
You can find some great options here
-
Long and short sleeve shirts
-
Sunscreen lotion
-
Breathable footwear or sandals
-
Light skirts
-
Extra socks
-
Sandals
-
Bug repellent
-
Short pants or heavy shorts
-
A rain jacket to layer with a coat
-
100% waterproof footwear
We recommend rain boots:
-
Rain pants
These pants can be a lifesaver in a storm.
-
Waterproof phone bag
-
Windproof umbrella
This one is a great one to buy.
-
Waterproof bag/luggage cover
So your bags remain dry. We like:
July
If you vacation in Keystone during July, you may notice 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 5-10 days this month.
What to wear/what to pack:
-
Sunscreen lotion
-
Sandals
-
Breathable footwear or sandals
-
Light dresses
You can find some great options here
-
Bug repellent
-
Short pants or heavy shorts
-
Long and short sleeve shirts
-
Extra socks
-
Light skirts
-
A rain jacket to layer with another jacket
-
100% waterproof footwear
We like rain boots:
-
Rain pants
Rain pants are essential in heavy rain.
-
Waterproof phone bag
-
Windproof umbrella
This one is a great option.
-
Waterproof bag/luggage cover
So your bags don't get wet. We like:
August
August in this region is warm. Temperatures average in the high 70s F (mid 20s C) during the day. It rains about a third of the time.
What to wear/what to pack:
-
Sandals
-
Light dresses
You can find some great options here
-
Short pants or heavy shorts
-
Extra socks
-
Light skirts
-
Sunscreen lotion
-
Breathable footwear or sandals
-
Long and short sleeve shirts
-
Bug repellent
-
A rain coat to layer with another jacket
-
100% waterproof footwear
We like rain boots:
-
Rain pants
These are a lifesaver in a rainstorm.
-
Waterproof phone bag
-
Windproof umbrella
This one is an excellent option.
-
Waterproof bag/luggage cover
So your bags don't get wet. We recommend:
September
Traveling to Keystone in September, you will notice that it is mild. Expect it to rain once in a while. Daytime temperatures are in the low 70s F (low 20s C).
What to wear/what to pack:
-
Short pants or heavy shorts
-
Breathable footwear or sandals
-
Sunscreen lotion
-
Sandals
-
Light skirts
-
Bug repellent
-
Light dresses
You can find some great options here
-
Long and short sleeve shirts
-
Extra socks
-
A rain poncho to layer with a jacket
-
100% waterproof footwear
We recommend rain boots:
-
Rain pants
These are a lifesaver in a storm.
-
Waterproof phone bag
-
Windproof umbrella
This one is a great one to buy.
-
Waterproof bag/luggage cover
So your bags remain dry. We like:
October
October for Keystone is cool. Temperatures average in the high 50s F (mid 10s C) during the day. It rains or snows sometimes.
What to wear/what to pack:
-
Light gloves or mittens
-
Warm pants or jeans
-
Extra socks
-
Fleece
-
Jacket or coat
-
Lip balm
In our opinion, the best pick: here
-
Standard footwear
-
Waterproof snow boots
In addition to standard shoes, you should bring snow boots. For visiting Keystone (South Dakota), a great option is these boots:
-
Waterproof jacket that can be used in snow
-
A umbrella
This is worth investing in for this weather. This one is an excellent choice.
November
November for Keystone can be very chilly. Temperatures average in the low 40s F (single digits C) during the day.
What to wear/what to pack:
-
Fleece inner layer
-
Thermal undergarments
We love:
-
Heavy sweaters
-
Very heavy heated socks
Like these
-
Pajamas
-
Lip balm
The best is: this one
-
Scarf/neck warmer
-
Extreme cold weather gloves
-
Insulated ice boots
We use:
-
Coveralls/snow pants
Here are some of the best choices:
-
Extreme weather jacket shell
These are a great value:
-
Waterproof snow boots
In addition to standard shoes, you should bring snow boots. For travel to Keystone (South Dakota), we suggest these boots:
-
Waterproof jacket that can be used in snow
-
A wind resistant umbrella
This is important here. This one is a great option.
December
Traveling to Keystone in December, you will notice that it can be brisk. Daytime temperatures are in the high 30s F (single digits C).
What to wear/what to pack:
-
Pajamas
-
Coveralls/snow pants
Here are some of the best choices:
-
Lip balm
The best pick: this one
-
Very heavy heated socks
Like these
-
Heavy sweaters
-
Fleece inner layer
-
Scarf/neck warmer
-
Insulated ice boots
We use:
-
Extreme cold weather gloves
-
Thermal undergarments
We love:
-
Extreme weather jacket shell
These are a great value:
-
Waterproof snow boots
In addition to day-to-day shoes, you should bring snow boots. For visiting Keystone (South Dakota), a great option is these boots:
-
Waterproof jacket that can be used in snow
-
A umbrella
This is essential here. This one is an excellent choice.
Activities for Keystone, South Dakota, United States of America
Here are some activity recommendations and activity-specific packing tips for Keystone.
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