Dayton, MT Weather
Dayton, MT climate is mild during summer when temperatures tend to be in the 60's and very cold during winter when temperatures tend to be in the 20's.
The warmest month of the year is July with an average maximum temperature of 79.70 degrees Fahrenheit, while the coldest month of the year is January with an average minimum temperature of 22.00 degrees Fahrenheit.
Temperature variations between night and day tend to be moderate during summer with a difference that can reach 27 degrees Fahrenheit, and fairly limited during winter with an average difference of 13 degrees Fahrenheit.
The annual average precipitation at Dayton is 21.87 Inches. Rainfall in is fairly evenly distributed throughout the year. The wettest month of the year is May with an average rainfall of 2.94 Inches.
Weather Data
Current Conditions
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Overcast, 44°F | Humidity: 49% | Dewpoint: 26°F |
| Wind Speed: SW 9 MPH | Heat Index: 44°F | ||
| Barometer: 30.00 in. | Wind Chill: 39°F |
Weather Forecast
| Hi: 46°F | Rest of today: Mostly cloudy. Slight chance of snow late in the morning. Then becoming partly sunny with isolated rain and snow showers in the afternoon. Highs in the mid 40s to lower 50s. | |
| Lo: 26°F | ||
| Hi: 40°F | Sunday: Mostly sunny. Highs in the upper 30s to mid 40s. | |
| Lo: 25°F | ||
| Hi: 40°F | Monday: Mostly sunny. Highs in the upper 30s to mid 40s. | |
| Lo: 26°F | ||
| Hi: 45°F | Tuesday: Partly cloudy. Lows in the 20s to lower 30s. Highs in the 40s. | |
| Lo: 26°F | ||
| Hi: 36°F | Wednesday: Mostly cloudy with a 30 percent chance of rain showers. Highs in the mid 30s to lower 40s. | |
| Lo: 26°F | ||
| Hi: 40°F | Thanksgiving day: Mostly cloudy with a 20 percent chance of rain and snow showers. Highs in the upper 30s to mid 40s. | |
| Lo: 26°F |
Moon, Sunrise and Sunset
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Moon Phase: Waning Crescent Moon | Civil Twilight: 7:18 AM MST |
Sunrise: 7:52 AM MST |
| Sunset: 4:52 PM MST |
Civil Twilight: 5:27 PM MST |
Normal Climate
Normal Temperatures
| Month | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Max °F | 33.3 | 37.7 | 45.6 | 55.6 | 64.3 | 71.6 | 79.7 | 79.5 | 69.0 | 56.4 | 41.6 | 34.3 | 55.7 |
| Mean °F | 27.7 | 30.9 | 37.2 | 45.1 | 52.7 | 59.7 | 66.4 | 66.3 | 56.6 | 46.7 | 35.6 | 29.2 | 46.2 |
| Min °F | 22.0 | 24.0 | 28.7 | 34.6 | 41.1 | 47.7 | 53.0 | 53.0 | 44.1 | 37.0 | 29.5 | 24.1 | 36.6 |
Normal Precipitation
| Month | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Inch | 1.64 | 1.18 | 1.44 | 1.62 | 2.94 | 2.76 | 1.72 | 1.61 | 1.82 | 1.47 | 1.75 | 1.92 | 21.87 |

