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.

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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

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:

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:

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:

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:

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:

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:

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:

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:

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:

October

October for Keystone is cool. Temperatures average in the high 50s F (mid 10s C) during the day. It rains or snows sometimes.

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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:

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:

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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