Decatur, Illinois, United States of America: What to pack, what to wear, and when to go [2018]

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

When to go to Decatur, Illinois, United States of America

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

What to wear/what to pack for Decatur, Illinois, United States of America by month

January

January in Decatur is frosty. The rain/snow can amount to several inches/centimeters.

During this time, temperatures average in the high 20s F (single digits below 0 C) to 30s F (single digits C), although night temperatures can dip into the single digits F (10+ below zero C).

What to wear/what to pack:

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

February

February in Decatur is cold. Temperatures average in the high 30s F (single digits C) during the day. It rains occasionally.

What to wear/what to pack:

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

March

If you vacation in Decatur during March, you are likely to find that it can be brisk. Temperatures tend to hover around the low 50s F (low 10s C) during the day, while at night they can dip into the low 30s F (single digits below 0 C).

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

What to wear/what to pack:

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

April

April for Decatur is crisp. Temperatures average in the 60s F (high 10s C) during the day. It rains sometimes.

What to wear/what to pack:

  • Standard footwear
  • Rain coat
  • Waterproof footwear
  • Light jacket or fleece
  • Long skirts
  • Pants or jeans
  • Umbrella
  • Dresses
  • Waterproof luggage
  • Socks
  • Long sleeve shirts or blouses

May

If you are traveling to Decatur in May, you will notice that it is a perfect temperature. Expect it to rain sometimes. Daytime temperatures are in the 70s F (low 20s C).

What to wear/what to pack:

  • Rain coat
  • Shorts or short pants
  • Skirts
  • Waterproof footwear
  • If you're going to the beach, bathing suits, swimwear
  • Light footwear
  • Long and short sleeve shirts
  • Dresses
  • Sunscreen lotion
  • Umbrella
  • Waterproof luggage
  • Sandals

June

If you visit Decatur during June, you are likely to find that it is hot. Temperatures tend to hover around the low 80s F (high 20s C) during the day, while at night they can dip into the low 60s F (mid 10s C).

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

What to wear/what to pack:

  • Waterproof footwear
  • Umbrella
  • Sandals
  • Short sleeve shirts
  • Shorts
  • If you're going to the beach, bathing suits, swimwear
  • Dresses
  • Skirts
  • Waterproof luggage
  • Rain coat
  • Sunscreen lotion
  • Sunglasses

July

July in Decatur is constantly hot. The rain can amount to several inches/centimeters. During this time, temperatures average in the high 80s F (low 30s C), although night temperatures can dip into the low 60s F (mid 10s C).

What to wear/what to pack:

  • Sunglasses
  • Waterproof footwear
  • Waterproof luggage
  • Sunscreen lotion
  • Umbrella
  • Short sleeve shirts
  • Rain coat
  • If you're going to the beach, bathing suits, swimwear
  • Sandals
  • Dresses
  • Shorts
  • Skirts

August

If you vacation in Decatur during August, you are likely to find that it is pretty consistently hot. Temperatures tend to hover around the 80s F (high 20s C) during the day, while at night they can dip into the low 60s F (high 10s C).

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

What to wear/what to pack:

  • Umbrella
  • Sandals
  • Waterproof luggage
  • Waterproof footwear
  • Shorts
  • Dresses
  • Skirts
  • Short sleeve shirts
  • Sunscreen lotion
  • Rain coat
  • Sunglasses
  • If you're going to the beach, bathing suits, swimwear

September

September here is warm. Temperatures average in the high 70s F (mid 20s C) during the day. It rains once in a while.

What to wear/what to pack:

  • Light footwear
  • Waterproof footwear
  • Shorts or short pants
  • Rain coat
  • If you're going to the beach, bathing suits, swimwear
  • Dresses
  • Sandals
  • Long and short sleeve shirts
  • Skirts
  • Umbrella
  • Waterproof luggage
  • Sunscreen lotion

October

Traveling to Decatur in October, you will notice that it is balmy. Expect it to rain occasionally. Daytime temperatures are in the 60s F (high 10s C).

What to wear/what to pack:

  • Rain coat
  • Waterproof luggage
  • Umbrella
  • Long skirts
  • Light jacket or fleece
  • Socks
  • Long sleeve shirts or blouses
  • Standard footwear
  • Pants or jeans
  • Waterproof footwear
  • Dresses

November

Traveling to Decatur in November, you will notice that it can be brisk. Expect it to rain once in a while. Daytime temperatures are in the low 50s F (low 10s C).

What to wear/what to pack:

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

December

December in Decatur can be very chilly. The rain/snow can amount to several inches/centimeters.

During this time, temperatures average in the low 30s F (single digits below 0 C) to high 30s 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:

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

Year-round what to wear/what to pack for Decatur, Illinois, United States of America

Here are some general tips on what to wear in Decatur, 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 Decatur
  • Appropriate museum wear

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