Thornton
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Thornton Weather in May

May in Thornton averages 22°C (72°F) during the day and 7°C (45°F) at night. It is the wettest month of the year, with 72 mm (2.8 in) of rainfall on average, so waterproof gear is a must.

Rainfall in Thornton in May

Since this month has the highest rainfall, keep an umbrella with you to handle sudden showers. You can typically expect 12 days of rain this month, averaging around 72 mm (2.8 in). A fairly balanced picture this month, some wet days but nothing too extreme in terms of intensity.

Temperature in Thornton in May

If you're visiting Thornton in May, expect excellent temperatures with highs of 22°C (72°F) and overnight lows of 7°C (45°F). Even when the weather is stable, mornings and evenings can still feel distinctly cool. At 7°C (45°F) overnight, it gets properly cold after dark. On the bright side, cold nights tend to make for excellent sleeping conditions.

Sunshine in Thornton in May

There are approximately 290 hours of sunshine this month, resulting in mostly clear days.

Wind Speed in Thornton in May

Wind speeds average 4 m/s (8 knots) during May. At this speed, expect moderate winds that can raise dust and move small branches. Since this is an average, some days have gentle light winds while others experience stronger breezes that are quite noticeable.

If you're a fan of comfortable temperatures and drier conditions, May is a great time to visit.

Thornton Temperature in May

Min Temperature
7°C (45°F)
Max Temperature
22°C (72°F)
Chance of Rain
40%
Precipitation
72 mm (2.8 in)
Rainy days
12 days
Humidity
51% *
Windspeed
4 m/s (8 knots) *
Sunshine
290 hours *
Percentage Sunshine
65% *
* Data from: Denver, the United States of America (15 KM, 9 Miles).

Thornton Weather by Month

Pick a month to see the average temperature, rainfall and sunshine in Thornton - and find the best time to visit.

Best Places in the United States of America in May

Find out more about the weather in the United States of America and which places have the best travel conditions in this month. See all of the United States of America in May →

perfect weather
pleasant
tolerable
unpleasant
poor

Perfect weather is subjective. On this map perfect weather has been defined with temperatures between 20°C (68°F) and 29°C (84°F) and not too much precipitation (less than 90 mm (3.5 in) a month).

What to Wear in Thornton in May

Pleasant temperatures in May mean you can pack light but flexibel pieces. Think cotton t-shirts, comfortable walking shorts, and one warmer layer for evenings. A light sweater or denim jacket works well. Rain gear is recommended, you can expect wet weather on multiple days. You'll definitely want to pack sunglasses and sunscreen. There will be plenty of bright sunshine this month.

What To Do in Thornton in May

We rated the following activities from 1 (least suitable) to 10 (best) to do.

  • Cycling
    9/10
  • Walking
    9/10
  • Barbeque
    8/10
  • Camping
    4/10
  • Outdoor sports
    9/10

Thornton 3-Day Forecast

Popular in May

Where to go in May - average daytime high across popular destinations.

Bucket list

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