Got an idea for a holiday? Send it to us

Submit Now

October20–26

National Temperature Check Week – October 20-26, 2025

National Temperature Check Week is observed on the last week of October every year, and this year, it takes place from October 20 to 26. This week is observed all over the country to raise awareness about temperature checks.

With time, people forget important information about their bodies. This week aims to remind people to check their temperatures regularly, understand the variations in their body temperatures, and know their temperature baseline. The week is also a time for people to brush up on their information on what counts as fever and when they need to rush to a hospital.

History of National Temperature Check Week

National Temperature Check Week is observed annually throughout the country in the last week of October. The week was instituted to raise awareness about the importance of regular temperature checks and to give people information about how they can read their temperature.

Human body temperature refers to the temperature range found in human beings. Typically, the average temperature of human bodies is between 97.7 to 98.6 °F (36.5 to 37 °C). However, this is only an average range. Human bodies are incredibly different, and the temperature ranges vary from person to person.

Even the same person might find that their temperature ranges are different across the days and weeks. Temperature variations have been observed depending on people’s hormones, the time of day, the amount of physical or mental activity they’re involved in, emotions, body parts, and whether they’re sleeping or awake.

The variation in temperature increases if a person is fit and physically active. In contrast, there are very few variations in body temperature daily as a person gets older. In geriatric patients, even a small increase in their baseline temperature can be a sign of a serious infection.

In healthy adults, an average temperature of 99.0 °F in the morning or 99.9 °F in the late afternoon is an indication of a fever. A fever occurs when the human body shifts its average temperature to a higher level to kill the organism causing an infection.

National Temperature Check Week timeline

50 A.D.
The Thermometer is Invented

Hero of Alexandria develops the concepts of temperature measurement and thermometry.

1800s
The Idea of Blood Heat is Recorded

Books quote the average blood heat of human beings at 98 °F.

1868
Temperature Charts are Part of Clinical Use

Following the release of German physician Carl Wunderlich’s book, temperature charts become part of regular clinical use.

2020
Temperature Check Week is Instituted

Braun Thermometers institutes Temperature Check Week to raise awareness about temperature ranges in humans.

National Temperature Check Week FAQs

Is 97.1 a low-grade fever?

No, anything between 100.4 to 102 °F is considered a low-grade fever in a healthy adult. In older adults, 97.1 °F may be a fever.

What is a low temperature for adults?

Temperatures below 95°F are considered low for the healthy adult.

Is forehead temperature reading accurate?

Forehead temperature readings are less accurate than the inner canal, oral, or rectal readings.

How to Observe National Temperature Check Week

  1. Share information about temperature ranges

    Most people don’t realize that human beings have a range of temperatures. Awareness of temperature variability can help prevent mass panic.

  2. Check your temperature variability

    Use this week to check your temperature every day at different points throughout the day. Make sure you keep a record so you know your temperature variability.

  3. Note the factors that affect temperature

    Your temperature can be affected by several factors. Keep track of your temperature fluctuations and what causes them so you’re informed.

5 Facts About Human Body Temperature That You Probably Didn’t Know

  1. Above 98.6°F isn’t necessarily a fever

    Temperature variations occur for several reasons, and your baseline might be higher than the average human.

  2. Kids have higher temperatures

    Babies and young children tend to have a higher body temperature than adults.

  3. Hyperthermia is different from fever

    Hyperthermia is when the temperature of your body increases but is not sustained at that point by your body.

  4. Fever is the body’s protective mechanism

    When you have a fever, your body increases your set point or base temperature and keeps it higher to kill the organisms causing an infection.

  5. Temperatures above 102°F are concerning

    If you have a fever and your body temperature is 103°F or higher, you will need to be admitted to the hospital.

Why National Temperature Check Week is Important

  1. We want people to be informed

    We think that everyone should know their bodies and learn about them. We think that it is important to understand how our bodies function.

  2. We want to check our own temperature

    We want to learn how to check our temperature correctly. We want to learn how to care for ourselves when we’re sick.

  3. We want people to cultivate a habit

    We want people to get used to checking their temperatures regularly. We want to make sure that people can care for themselves.

National Temperature Check Week dates

Year Date Day
2022 October 24 Monday
2023 October 23 Monday
2024 October 21 Monday
2025 October 20 Monday
2026 October 19 Monday