Average temperature in Thornton (CO)
The mean minimum and maximum temperatures over the year in Thornton (Colorado), the United States of America.
- The months of May, June and September have nice average temperatures.
- On average, the warmest month(s) are June, July and August.
- On average, the warmest month is July with 32°C.
- On average, the coolest month is December with 7°C.
- The average annual maximum temperature is 19°C.
- The average annual minimum temperature is 3°C.
Weather Forecasts for Thornton (CO)
overcast and rain
overcast and sleet
partly cloudy and no rain