Sioux City, Iowa, United States of America: What to pack, what to wear, and when to go [2018]

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

When to go to Sioux City, Iowa, United States of America

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

What to wear/what to pack for Sioux City, Iowa, United States of America by month

January

January in Sioux City is freezing. The average overnight temperatures in the area are in the low 10s F (10+ below zero C), with a few days below 0 F (10+ below zero C). It tends to rain about a third of the time.

It also snows once in a while. But the colder weather doesn't bring low humidity, which is in the 60% to 70% range on average.

What to wear/what to pack:

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

February

If you are traveling to Sioux City in February, you will notice that it is frigid. Expect it to rain 5-10 days this month and snow once in a while. Daytime temperatures are in the 30s F (single digits C).

What to wear/what to pack:

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

March

March in Sioux City is pretty cool. The rain/snow can amount to several inches/centimeters.

During this time, temperatures average in the high 40s F (single digits C), although night temperatures can dip into the low 20s F (single digits below 0 C).

What to wear/what to pack:

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

April

If you visit Sioux City during April, you are likely to find that it is crisp and somewhat rainy. 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).

Humidity is generally between 40 and 50% during the day. In terms of precipitation, you can expect it to rain about a third of the time.

What to wear/what to pack:

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

May

May in Sioux City is a perfect temperature and somewhat rainy. 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 40s F (single digits C).

What to wear/what to pack:

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

June

In June, Sioux City is hot and somewhat rainy. Temperatures routinely are in the low 80s F (high 20s C) and once in a while jump into the low 90s F (low 30s C) range. At night, lows are in the high 50s F (mid 10s C).

This is also a rainy time for Sioux City, with several of the days of the month having rain. In June, humidity reaches as high as 50%.

What to wear/what to pack:

  • Short sleeve shirts
  • Dresses
  • Rain coat
  • Umbrella
  • Sunscreen lotion
  • Waterproof footwear
  • Waterproof luggage
  • Sandals
  • Shorts
  • Sunglasses
  • Skirts

July

If you vacation in Sioux City during July, you are likely to find that it can be very hot. Temperatures tend to hover around the 80s F (low 20s C) during the day, while at night they can dip into the low 60s F (high 10s C).

Humidity is generally between 50 and 60% during the day. In terms of precipitation, you can expect it to rain 5-10 days this month.

What to wear/what to pack:

  • Sunglasses
  • Umbrella
  • Rain coat
  • Sandals
  • Sunscreen lotion
  • Waterproof luggage
  • Shorts
  • Dresses
  • Waterproof footwear
  • Short sleeve shirts
  • Skirts

August

August in Sioux City is extremely warm. The rain can amount to several inches/centimeters.

During this time, temperatures average in the low 70s F (low 20s C) to low 80s F (high 20s C), although night temperatures can dip into the low 60s F (mid 10s C).

What to wear/what to pack:

  • Sandals
  • Sunscreen lotion
  • Shorts
  • Waterproof luggage
  • Dresses
  • Waterproof footwear
  • Rain coat
  • Short sleeve shirts
  • Sunglasses
  • Umbrella
  • Skirts

September

Traveling to Sioux City in September, you will notice that it is a perfect temperature. Expect it to rain regularly. Daytime temperatures are in the 70s F (mid 20s C).

What to wear/what to pack:

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

October

October in Sioux City is chilly. The average overnight temperatures in the area are in the high 30s F (single digits C).

It tends to rain sometimes. With the colder weather comes lower humidity, which is in the 40% to 50% range on average.

What to wear/what to pack:

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

November

November in Sioux City is brisk. The average overnight temperatures in the area are in the 20s F (single digits below 0 C). It tends to rain occasionally.

It also snows sometimes. But the colder weather doesn't bring low humidity, which is in the 50% to 60% range on average.

What to wear/what to pack:

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

December

December in Sioux City is very cold. Temperatures average in the low 30s F (single digits C) during the day. It rains 5-10 days this month and snows once in a while.

What to wear/what to pack:

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

Year-round what to wear/what to pack for Sioux City, Iowa, United States of America

Here are some general tips on what to wear in Sioux City, 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 Sioux City
  • Appropriate museum wear
  • Bicycle friendly attire, if you plan on biking anywhere

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