Expand
Contents
- Weather in January
- Weather in February
- Weather in March
- Weather in April
- Weather in May
- Weather in June
- Weather in July
- Weather in August
- Weather in September
- Weather in October
- Weather in November
- Weather in December
- Frequently asked questions
- Average temperature
- Average pressure
- Average wind speed
- Average humidity
- Average rainfall
- Average rainfall days
- Average snowfall
- Average snowfall days
- Average daylight
- Average sunshine
- Average sunshine days
- Average UV index
- Average cloud cover
- Average visibility
Weather in January
January, like December, is another subzero cold winter month in Dayton, Montana, with temperature in the range of an average high of 28.6°F (-1.9°C) and an average low of 16.2°F (-8.8°C). January's beginning signals an average high-temperature of a still subzero cold 28.6°F (-1.9°C), barely different from December's 27.1°F (-2.7°C). Weather in January »
Weather in February
The last month of the winter, February, is another freezing cold month in Dayton, Montana, with an average temperature varying between 29.7°F (-1.3°C) and 16.3°F (-8.7°C). With the advent of February, Dayton's high-temperatures adjust to a still freezing cold 29.7°F (-1.3°C), closely aligning with the preceding month. Weather in February »
Weather in March
The first month of the spring, March, is an icy month in Dayton, Montana, with temperature in the range of an average low of 23.4°F (-4.8°C) and an average high of 38.3°F (3.5°C). March's arrival brings a slight change in high-temperatures, adjusting from a freezing cold 29.7°F (-1.3°C) in February to a wintry 38.3°F (3.5°C). Weather in March »
Weather in April
April in Dayton, Montana, is a frosty spring month, with temperature in the range of an average low of 29.7°F (-1.3°C) and an average high of 47.8°F (8.8°C). As April begins, there is an increase in the average high-temperature, moving from a cold 38.3°F (3.5°C) in March to a frosty 47.8°F (8.8°C). Weather in April »
Weather in May
May, the last month of the spring in Dayton, is a comfortable month, with an average temperature ranging between min 36.7°F (2.6°C) and max 60.8°F (16°C). The onset of May marks an increase in the average high-temperature, moving from a chilly 47.8°F (8.8°C) in April to an enjoyable 60.8°F (16°C). Weather in May »
Weather in June
The first month of the summer, June, is an agreeable month in Dayton, Montana, with an average temperature fluctuating between 68°F (20°C) and 42.8°F (6°C). As May transitions into June, Dayton notices a gentle rise in the average high-temperature, transitioning from a refreshing 60.8°F (16°C) to a pleasant 68°F (20°C). Weather in June »
Weather in July
July is a warm summer month in Dayton, Montana, with an average temperature ranging between min 48.4°F (9.1°C) and max 79.3°F (26.3°C). July, characterized by an average high temperature of 79.3°F (26.3°C) and a low temperature of 48.4°F (9.1°C), is generally the warmest month. Weather in July »
Weather in August
The last month of the summer, August, is another warm month in Dayton, Montana, with temperature in the range of an average low of 48.2°F (9°C) and an average high of 78.4°F (25.8°C). An average high-temperature of a still moderately hot 78.4°F (25.8°C) marks August, exhibiting a close resemblance to the conditions in July. Weather in August »
Weather in September
September, the first month of the autumn in Dayton, is still a comfortable month, with an average temperature fluctuating between 41.5°F (5.3°C) and 67.1°F (19.5°C). September shows a mild decline in the average high-temperature, falling from August's warm 78.4°F (25.8°C) to a refreshing 67.1°F (19.5°C). Weather in September »
Weather in October
October, the same as September, is another fresh autumn month in Dayton, Montana, with an average temperature varying between 50.4°F (10.2°C) and 32.7°F (0.4°C). In Dayton, the onset of October is marked by a decreased average high-temperature, declining from September's comfortable 67.1°F (19.5°C) to a cool 50.4°F (10.2°C). Weather in October »
Weather in November
November, the last month of the autumn in Dayton, is also an icy month, with an average temperature ranging between max 36°F (2.2°C) and min 24.1°F (-4.4°C). November shows a mild decline in the average high-temperature, falling from October's cool 50.4°F (10.2°C) to an icy 36°F (2.2°C). Weather in November »
Weather in December
The first month of the winter, December, is also a subzero cold month in Dayton, Montana, with temperature in the range of an average low of 16.2°F (-8.8°C) and an average high of 27.1°F (-2.7°C). In Dayton, December is the month with the lowest recorded average temperatures, measuring a high of 27.1°F (-2.7°C) and a low of 16.2°F (-8.8°C). Weather in December »
[Resources]Frequently asked questions
What is the most humid month in Dayton?
With an average relative humidity of 93%, January is the most humid month.
How many days does it rain in Dayton?
Throughout the year, there are 129.8 rainfall days, and 16.42" (417mm) of precipitation is accumulated.
When does it snow in Dayton?
January through June, September through December are months with snowfall in Dayton, Montana.
How much does it snow in Dayton?
Throughout the year, in Dayton, Montana, there are 117.4 snowfall days, and 58.62" (1489mm) of snow is accumulated.
What is the month with the least sunshine in Dayton?
With an average of 3.5h of sunshine, January has the least sunshine of the year.
What is the month with the lowest UV index in Dayton?
January, February, November and December, with an average maximum UV index of 1, are months with the lowest UV index in Dayton.
When is Daylight Saving Time (DST) in Dayton?
On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts, and the time zone changes from MST to MDT. Daylight Saving Time ends Sunday, November 3. 2024, at 2:00 am, and the time zone reverts from MDT to MST.
What is the rainiest month in Dayton?
June is the month with the most rainfall in Dayton. Rain falls for 14.9 days and accumulates 1.89" (48mm) of precipitation.
When are the longest days in Dayton?
June has the longest days of the year in Dayton, with an average of 16h and 0min of daylight.
What is the warmest month in Dayton?
July is the month when Dayton, Montana, sees the average highest temperatures, with a high of 79.3°F (26.3°C) and a low of 48.4°F (9.1°C).
What are the least humid months in Dayton?
July and August, with an average relative humidity of 52%, are the least humid months.
What is the driest month in Dayton?
July is the month with the least rainfall in Dayton. Rain falls for 8 days and accumulates 0.59" (15mm) of precipitation.
When it does not snow in Dayton?
July and August are months without snowfall.
What month has the most sunshine in Dayton?
The month with the most sunshine in Dayton is July, with an average of 11.7h of sunshine.
When is the highest UV index in Dayton?
With an average maximum UV index of 6, July is the month with the highest UV index in Dayton, Montana.
What is the coldest month in Dayton?
December is Dayton's coldest month, registering average high temperatures of 27.1°F (-2.7°C) and lows of 16.2°F (-8.8°C).
What is the snowiest month in Dayton?
The month with the most snowfall in Dayton, Montana, is December, when snow falls for 21.7 days and typically aggregates up to 12.36" (314mm) of snow.
What is the month with the shortest days in Dayton?
December has the shortest days of the year in Dayton, Montana, with an average of 8h and 30min of daylight.
Average temperature
Dayton, MT
The warmest month (with the highest average high temperature) is July (79.3°F).
The month with the lowest average high temperature is December (27.1°F).
The month with the highest average low temperature is July (48.4°F).
The coldest months (with the lowest average low temperature) are January and December (16.2°F).
Average pressure
Dayton, MT
- Average pressure in January:
30.17"Hg - Average pressure in February:
30.12"Hg - Average pressure in March:
30.03"Hg - Average pressure in April:
29.99"Hg - Average pressure in May:
29.96"Hg - Average pressure in June:
29.91"Hg
- Average pressure in July:
29.95"Hg - Average pressure in August:
29.94"Hg - Average pressure in September:
29.98"Hg - Average pressure in October:
30.05"Hg - Average pressure in November:
30.1"Hg - Average pressure in December:
30.16"Hg
The month with the highest atmospheric pressure is January (30.17"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).
Average wind speed
Dayton, MT
- Average wind speed in January:
3.7mph - Average wind speed in February:
4mph - Average wind speed in March:
4.3mph - Average wind speed in April:
4.7mph - Average wind speed in May:
4.3mph - Average wind speed in June:
4.3mph
- Average wind speed in July:
3.9mph - Average wind speed in August:
3.6mph - Average wind speed in September:
3.7mph - Average wind speed in October:
4mph - Average wind speed in November:
4mph - Average wind speed in December:
3.6mph
The windiest month (with the highest average wind speed) is April (4.7mph).
The calmest months (with the lowest average wind speed) are August and December (3.6mph).
Average humidity
Dayton, MT
The month with the highest relative humidity is January (93%).
The months with the lowest relative humidity are July and August (52%).
Average rainfall
Dayton, MT
- Average rainfall in January:
1.42" - Average rainfall in February:
1.5" - Average rainfall in March:
1.65" - Average rainfall in April:
1.73" - Average rainfall in May:
1.5" - Average rainfall in June:
1.89"
- Average rainfall in July:
0.59" - Average rainfall in August:
0.63" - Average rainfall in September:
0.98" - Average rainfall in October:
1.54" - Average rainfall in November:
1.42" - Average rainfall in December:
1.57"
The wettest month (with the highest rainfall) is June (1.89").
The driest month (with the least rainfall) is July (0.59").
Average rainfall days
Dayton, MT
- Average rainfall days in January:
8 days - Average rainfall days in February:
7.8 days - Average rainfall days in March:
13.8 days - Average rainfall days in April:
15.9 days - Average rainfall days in May:
14.1 days - Average rainfall days in June:
14.9 days
- Average rainfall days in July:
8 days - Average rainfall days in August:
7.1 days - Average rainfall days in September:
10.2 days - Average rainfall days in October:
13 days - Average rainfall days in November:
10.5 days - Average rainfall days in December:
6.5 days
The month with the highest number of rainy days is April (15.9 days).
The month with the least rainy days is December (6.5 days).
Average snowfall
Dayton, MT
- Average snowfall in January:
11.14" - Average snowfall in February:
11.46" - Average snowfall in March:
9.06" - Average snowfall in April:
4.25" - Average snowfall in May:
0.83" - Average snowfall in June:
0.04"
The month with the highest snowfall is December (12.36").
The months with the least snowfall are July and August (0").
Average snowfall days
Dayton, MT
- Average snowfall days in January:
22.3 days - Average snowfall days in February:
20.9 days - Average snowfall days in March:
18.9 days - Average snowfall days in April:
9.8 days - Average snowfall days in May:
2.3 days - Average snowfall days in June:
0.1 days
- Average snowfall days in July:
0 days - Average snowfall days in August:
0 days - Average snowfall days in September:
0.4 days - Average snowfall days in October:
5 days - Average snowfall days in November:
16 days - Average snowfall days in December:
21.7 days
The month with the highest number of snowfall days is January (22.3 days).
The months with the least snowfall days are July and August (0 days).
Average daylight / Average sunshine
Dayton, MT
- Average daylight in January:
8h and 5min - Average daylight in February:
10h and 2min - Average daylight in March:
11h and 5min - Average daylight in April:
13h and 4min - Average daylight in May:
15h and 1min - Average daylight in June:
16h and 0min
- Average daylight in July:
15h and 4min - Average daylight in August:
14h and 1min - Average daylight in September:
12h and 4min - Average daylight in October:
10h and 5min - Average daylight in November:
9h and 2min - Average daylight in December:
8h and 3min
The month with the longest days is June (Average daylight: 16h and 0min).
The month with the shortest days is December (Average daylight: 8h and 30min).
- Average sunshine in January:
3h and 3min - Average sunshine in February:
4h and 3min - Average sunshine in March:
6h and 1min - Average sunshine in April:
8h and 1min - Average sunshine in May:
10h and 1min - Average sunshine in June:
10h and 2min
- Average sunshine in July:
11h and 4min - Average sunshine in August:
11h and 4min - Average sunshine in September:
9h and 1min - Average sunshine in October:
6h and 3min - Average sunshine in November:
5h and 1min - Average sunshine in December:
3h and 5min
The month with the most sunshine is July (Average sunshine: 11h and 42min).
The month with the least sunshine is January (Average sunshine: 3h and 30min).
Average sunshine days
Dayton, MT
- Average sunshine days in January:
8.9 days - Average sunshine days in February:
7.1 days - Average sunshine days in March:
7.5 days - Average sunshine days in April:
9.1 days - Average sunshine days in May:
14.5 days - Average sunshine days in June:
13.2 days
- Average sunshine days in July:
20.8 days - Average sunshine days in August:
20 days - Average sunshine days in September:
18.6 days - Average sunshine days in October:
14.6 days - Average sunshine days in November:
10.1 days - Average sunshine days in December:
9.5 days
The month with the most sunshine days is July (20.8 days).
The month with the least sunshine days is February (7.1 days).
Average UV index
Dayton, MT
The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 1).
Average cloud cover
Dayton, MT
The month with the most cloud cover is January (Cloud cover 64).
The months with the least cloud cover are July and August (Cloud cover 15).
Average visibility
Dayton, MT
The months with the highest visibility are May, June, July, August, September and October (6mi).
The month with the lowest visibility is January (3mi).
Dayton, Montana, USA
Weather forecast for your location
1. Click Locate me button
2. Allow the app to use your location
2. Allow the app to use your location
