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Why does your nose run when you’re sat in the cold?

Sarah Jenkins
Sarah Jenkins
Lead Content Curator · Feb 17, 2026 · Updated Apr 13, 2026

Some of that is the same thing that makes a dog's nose wet – condensation. When it's cold, your nose gets cold but your lungs, and the air coming out of them, is still ~98f/37c and the air has picked up a lot of moisture from your lungs. When it contacts the cooler tissues of your nose, it conden…

83
Words

1 min
Read Time

#171
of 500 in Science

+15%
vs Category Avg

The Short Answer

Some of that is the same thing that makes a dog's nose wet – condensation. When it's cold, your nose gets cold but your lungs, and the air coming out of them, is still ~98f/37c and the air has picked up a lot of moisture from your lungs. When it contacts the cooler tissues of your nose, it condenses and eventually drips into your trail mix while you're talking to a hot hiker on the way up to Mt. Yale…or whatever.

Analysis

Key Concepts: Nose, cold, lungs

This explanation focuses on nose, cold, lungs and spans 83 words across 4 sentences. The depth is typical for Science questions (category average: 72 words), striking a balance between accessibility and completeness.

What This Answer Covers

The explanation opens with: “Some of that is the same thing that makes a dog's nose wet – condensation.” It then elaborates by presenting a contrasting perspective, ultimately building toward a complete picture across 4 connected points.

How This Compares in Science

Ranked #171 of 500 Science questions by answer depth (top 35%). This falls in the detailed tier — above average depth. The explanation goes beyond surface-level but keeps things accessible.

Frequently Asked Questions

Is there a simple explanation for why your nose run when you're sat in the cold?

Some of that is the same thing that makes a dog's nose wet – condensation. When it's cold, your nose gets cold but your lungs, and the air coming out of them, is still ~98f/37c and the air has picked up a lot of moisture from your lungs. When it…

How detailed is this explanation compared to similar Science questions?

This is an above-average answer at 83 words, ranked #171 of 500 Science questions by depth. The key concepts covered are nose, cold, lungs.

What approach does this answer take to explain your nose run when you're sat in the cold?

The explanation uses contrasting perspectives across 83 words. It is categorized under Science and addresses the question through 1 analytical lens.