Reference
Dew Point Temperature Chart
Dew point is not a standalone number — it is what the air temperature and the relative humidity produce together. This page has both charts you need: the comfort scale, and a lookup table for every common temperature and humidity pairing.
Dew Point vs Temperature — What Is the Difference?
Air temperature is simply how hot the air is. Dew point temperature is how far that air would have to cool before the water vapor in it starts condensing into liquid.
Because of that, the dew point is always equal to or lower than the air temperature. When the two numbers meet, relative humidity is 100% — and you get fog, dew on the grass, or rain.
Dew Point Temperature Comfort Chart
Once you know the dew point, this is the scale that tells you how it will feel:
| Dew Point (°F) | Dew Point (°C) | Comfort Level | What It Feels Like |
|---|---|---|---|
| < 50 | < 10 | Dry | Crisp, no noticeable humidity. Skin may feel dry. |
| 50 – 55 | 10 – 13 | Very Comfortable | Pleasant, barely noticeable moisture. |
| 55 – 60 | 13 – 16 | Comfortable | Slight moisture in the air, still fine for most people. |
| 60 – 65 | 16 – 18 | Slightly Humid | Starting to feel sticky. Hair may begin to frizz. |
| 65 – 70 | 18 – 21 | Humid | Uncomfortable for most. Sweat evaporates slowly. |
| 70 – 75 | 21 – 24 | Very Humid | Oppressive. Hard to breathe deeply. Feels tropical. |
| > 75 | > 24 | Oppressive | Tropical, sweat does not evaporate. Stay indoors if you can. |
Dew Point by Temperature and Relative Humidity
For the same relative humidity, a higher temperature means a higher dew point. That is why 50% humidity on a 90°F day is miserable while 50% on a 60°F day is crisp and pleasant — the dew point is completely different.
Find your temperature in the left column and your humidity across the top. Cells are tinted by comfort level.
| Temperature | 30% RH | 40% RH | 50% RH | 60% RH | 70% RH | 80% RH | 90% RH |
|---|---|---|---|---|---|---|---|
| 100°F (38°C) | 63°F | 71°F | 78°F | 84°F | 88°F | 93°F | 97°F |
| 95°F (35°C) | 59°F | 67°F | 73°F | 79°F | 84°F | 88°F | 92°F |
| 90°F (32°C) | 54°F | 62°F | 69°F | 74°F | 79°F | 83°F | 87°F |
| 85°F (29°C) | 50°F | 58°F | 64°F | 70°F | 74°F | 78°F | 82°F |
| 80°F (27°C) | 46°F | 54°F | 60°F | 65°F | 69°F | 73°F | 77°F |
| 75°F (24°C) | 41°F | 49°F | 55°F | 60°F | 65°F | 68°F | 72°F |
| 70°F (21°C) | 37°F | 45°F | 51°F | 55°F | 60°F | 64°F | 67°F |
| 65°F (18°C) | 33°F | 40°F | 46°F | 51°F | 55°F | 59°F | 62°F |
| 60°F (16°C) | 28°F | 36°F | 41°F | 46°F | 50°F | 54°F | 57°F |
Values are calculated with the Magnus-Tetens formula and rounded to the nearest degree.
How to Read a Dew Point Temperature Chart
- Find the row for today’s air temperature.
- Find the column for today’s relative humidity.
- Where they meet is the dew point.
- Check the comfort scale: under 60°F is comfortable, over 65°F is sticky, over 70°F is oppressive.
Example: it is 85°F outside with 60% humidity. Cross-reference the chart and the dew point is 70°F — the top of the “Humid” range. Expect it to feel sticky, and expect an outdoor workout to be noticeably harder than usual.
The Key Insight: Why Temperature Matters So Much
Look down the 50% humidity column. At 60°F the dew point is only 41°F — dry and crisp. At 90°F, that same 50% humidity produces a 69°F dew point — sticky and uncomfortable. This is why relative humidity alone is useless for judging comfort. Temperature changes everything, and the dew point folds that relationship into a single number.
Full Dew Point Chart
Want the complete chart with a live city lookup and a calculator? See the complete dew point chart →
Frequently Asked Questions
Is dew point the same as temperature?
No. Air temperature is how hot it is; dew point is the temperature at which that air would have to cool for water vapor to condense. The dew point is always equal to or lower than the air temperature — when the two are equal, relative humidity is 100% and you get fog, dew, or rain.
How do you calculate dew point from temperature and humidity?
Meteorologists use the Magnus-Tetens formula, which converts the temperature and relative humidity into the saturation point of the air. The chart on this page is generated with that formula, so you can read off any common temperature and humidity pairing without doing the math.