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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, the same as December, in Dell, Montana, is a freezing cold winter month, with an average temperature ranging between min 10.8°F (-11.8°C) and max 27°F (-2.8°C). January's commencement is accompanied by an average high-temperature of a still subzero cold 27°F (-2.8°C), diverging marginally from December's 24.3°F (-4.3°C). Weather in January »
Weather in February
The last month of the winter, February, is also a subzero cold month in Dell, Montana, with an average temperature ranging between max 27.1°F (-2.7°C) and min 10.4°F (-12°C). February's arrival brings an average high-temperature of a still freezing cold 27.1°F (-2.7°C), slightly deviating from January's 27°F (-2.8°C). Weather in February »
Weather in March
The first month of the spring, March, is a wintry month in Dell, Montana, with an average temperature fluctuating between 34.3°F (1.3°C) and 19°F (-7.2°C). The start of March signals a slight increase in the average high-temperature, moving from a subzero cold 27.1°F (-2.7°C) in February to a wintry 34.3°F (1.3°C). Weather in March »
Weather in April
April is a chilly spring month in Dell, Montana, with an average temperature fluctuating between 26.4°F (-3.1°C) and 44.1°F (6.7°C). The start of April brings a shift in the average high-temperature, increasing from March's cold 34.3°F (1.3°C) to a frosty 44.1°F (6.7°C). Weather in April »
Weather in May
May, the last month of the spring in Dell, is a mild month, with an average temperature varying between 34.7°F (1.5°C) and 55.6°F (13.1°C). As Dell enters May, the average high-temperature increases from the a frosty 44.1°F (6.7°C) of April to a mild 55.6°F (13.1°C). Weather in May »
Weather in June
June, the first month of the summer in Dell, is an enjoyable month, with an average temperature fluctuating between 65.8°F (18.8°C) and 40.6°F (4.8°C). With the beginning of June, Dell's average high-temperature sees an increase, transitioning from a refreshing 55.6°F (13.1°C) in May to a comfortable 65.8°F (18.8°C). Weather in June »
Weather in July
July is a warm summer month in Dell, Montana, with an average temperature varying between 76.6°F (24.8°C) and 47.1°F (8.4°C). July, having an average high-temperature of 76.6°F (24.8°C) and an average low-temperature of 47.1°F (8.4°C), is the warmest month. Weather in July »
Weather in August
The last month of the summer, August, is another warm month in Dell, Montana, with an average temperature ranging between max 75.4°F (24.1°C) and min 46.9°F (8.3°C). Dell observes a minor difference in average high-temperatures between July's 76.6°F (24.8°C) and August's 75.4°F (24.1°C). Weather in August »
Weather in September
The first month of the autumn, September, is still a comfortable month in Dell, Montana, with temperature in the range of an average low of 42.1°F (5.6°C) and an average high of 65.8°F (18.8°C). Dell's progression into September includes a drop in the average high-temperature, from a warm 75.4°F (24.1°C) in August to a comfortable 65.8°F (18.8°C). Weather in September »
Weather in October
October, like September, is a frosty autumn month in Dell, Montana, with an average temperature ranging between min 31.3°F (-0.4°C) and max 49.1°F (9.5°C). The start of October brings a distinct shift in the average high-temperature, dropping from September's comfortable 65.8°F (18.8°C) to a frosty 49.1°F (9.5°C). Weather in October »
Weather in November
November, the last month of the autumn in Dell, is another cold month, with temperature in the range of an average low of 20.1°F (-6.6°C) and an average high of 34.9°F (1.6°C). The onset of November results in a decrease in the average high-temperature, receding from a frosty 49.1°F (9.5°C) in October to an icy 34.9°F (1.6°C). Weather in November »
Weather in December
The first month of the winter, December, is still a freezing cold month in Dell, Montana, with an average temperature varying between 9.9°F (-12.3°C) and 24.3°F (-4.3°C). December is the coldest month, exhibiting average temperatures of 24.3°F (-4.3°C) at the peak and 9.9°F (-12.3°C) at the base. Weather in December »
Updated: Jun 21, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the most humid month?
The months with the highest humidity are January and February, with an average relative humidity of 86%.
What is the driest month?
The month with the least rainfall in Dell, Montana, is January, when the rain falls for 4.6 days and typically collects 0.43" (11mm) of precipitation.
How much does it rain?
Throughout the year, there are 103.2 rainfall days, and 9.84" (250mm) of precipitation is accumulated.
When does it snow?
Months with snowfall are January through June, September through December.
How many days does it snow?
In Dell, during the entire year, snow falls for 81.9 days and aggregates up to 31.65" (804mm) of snow.
What is the month with the least sunshine in Dell?
January has the least sunshine of the year, with an average of 5.9h of sunshine.
What is the month with the lowest UV index?
The month with the lowest UV index is February, with an average maximum UV index of 1.
When is Daylight Saving Time (DST)?
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 snowiest month?
The month with the most snowfall is April, when snow falls for 10.8 days and typically aggregates up to 4.96" (126mm) of snow.
What is the wettest month in Dell?
The month with the most rainfall in Dell is June, when the rain falls for 13.5 days and typically aggregates up to 1.73" (44mm) of precipitation.
When are the longest days?
June has the longest days of the year, with an average of 15h and 30min of daylight.
What month is the hottest?
July is the warmest month, with an average high-temperature of 76.6°F (24.8°C) and an average low-temperature of 47.1°F (8.4°C).
What is the least humid month?
The months with the lowest humidity are July and August, with an average relative humidity of 43%.
When it does not snow?
July and August are months without snowfall.
What month has the most sunshine?
With an average of 11.9h of sunshine, July has the most sunshine of the year.
When is the highest UV index in Dell?
July is the month with the highest UV index, with an average maximum UV index of 5.
What time of the year is the coldest?
In Dell, the average lowest temperatures are observed in December, with a high of 24.3°F (-4.3°C) and a low of 9.9°F (-12.3°C).
What is the month with the shortest days?
December has the shortest days of the year, with an average of 8h and 54min of daylight.
Average temperature
Dell, MT
The warmest month (with the highest average high temperature) is July (76.6°F).
The month with the lowest average high temperature is December (24.3°F).
The month with the highest average low temperature is July (47.1°F).
The coldest month (with the lowest average low temperature) is December (9.9°F).
Average pressure
Dell, MT
- Average pressure in January:
30.25"Hg - Average pressure in February:
30.15"Hg - Average pressure in March:
30.07"Hg - Average pressure in April:
29.98"Hg - Average pressure in May:
29.94"Hg - Average pressure in June:
29.92"Hg
- Average pressure in July:
29.98"Hg - Average pressure in August:
29.98"Hg - Average pressure in September:
29.99"Hg - Average pressure in October:
30.07"Hg - Average pressure in November:
30.16"Hg - Average pressure in December:
30.24"Hg
The month with the highest atmospheric pressure is January (30.25"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).
Average wind speed
Dell, MT
- Average wind speed in January:
7.1mph - Average wind speed in February:
6.8mph - Average wind speed in March:
6.8mph - Average wind speed in April:
6.8mph - Average wind speed in May:
6.2mph - Average wind speed in June:
6.3mph
- Average wind speed in July:
5.8mph - Average wind speed in August:
5.4mph - Average wind speed in September:
5.8mph - Average wind speed in October:
6.6mph - Average wind speed in November:
7.3mph - Average wind speed in December:
7.3mph
The windiest months (with the highest average wind speed) are November and December (7.3mph).
The calmest month (with the lowest average wind speed) is August (5.4mph).
Average humidity
Dell, MT
The months with the highest relative humidity are January and February (86%).
The months with the lowest relative humidity are July and August (43%).
Average rainfall
Dell, MT
- Average rainfall in January:
0.43" - Average rainfall in February:
0.63" - Average rainfall in March:
0.67" - Average rainfall in April:
1.22" - Average rainfall in May:
1.38" - Average rainfall in June:
1.73"
- Average rainfall in July:
0.71" - Average rainfall in August:
0.59" - Average rainfall in September:
0.75" - Average rainfall in October:
0.75" - Average rainfall in November:
0.51" - Average rainfall in December:
0.47"
The wettest month (with the highest rainfall) is June (1.73").
The driest month (with the least rainfall) is January (0.43").
Average rainfall days
Dell, MT
- Average rainfall days in January:
4.6 days - Average rainfall days in February:
6.5 days - Average rainfall days in March:
9.6 days - Average rainfall days in April:
12.3 days - Average rainfall days in May:
13.7 days - Average rainfall days in June:
13.5 days
- Average rainfall days in July:
7.5 days - Average rainfall days in August:
7.8 days - Average rainfall days in September:
7.8 days - Average rainfall days in October:
8.8 days - Average rainfall days in November:
5.3 days - Average rainfall days in December:
5.8 days
The month with the highest number of rainy days is May (13.7 days).
The month with the least rainy days is January (4.6 days).
Average snowfall
Dell, MT
- Average snowfall in January:
3.31" - Average snowfall in February:
4.92" - Average snowfall in March:
4.25" - Average snowfall in April:
4.96" - Average snowfall in May:
2.4" - Average snowfall in June:
0.35"
The month with the highest snowfall is April (4.96").
The months with the least snowfall are July and August (0").
Average snowfall days
Dell, MT
- Average snowfall days in January:
11.8 days - Average snowfall days in February:
13.3 days - Average snowfall days in March:
13 days - Average snowfall days in April:
10.8 days - Average snowfall days in May:
3.9 days - Average snowfall days in June:
0.4 days
- Average snowfall days in July:
0 days - Average snowfall days in August:
0 days - Average snowfall days in September:
0.9 days - Average snowfall days in October:
5.3 days - Average snowfall days in November:
9.9 days - Average snowfall days in December:
12.6 days
The month with the highest number of snowfall days is February (13.3 days).
The months with the least snowfall days are July and August (0 days).
Average daylight / Average sunshine
Dell, MT
- Average daylight in January:
9h and 2min - Average daylight in February:
10h and 3min - Average daylight in March:
12h and 0min - Average daylight in April:
13h and 3min - Average daylight in May:
14h and 5min - Average daylight in June:
15h and 3min
- Average daylight in July:
15h and 1min - Average daylight in August:
14h and 0min - Average daylight in September:
12h and 3min - Average daylight in October:
11h and 0min - Average daylight in November:
9h and 4min - Average daylight in December:
8h and 5min
The month with the longest days is June (Average daylight: 15h and 30min).
The month with the shortest days is December (Average daylight: 8h and 54min).
- Average sunshine in January:
5h and 5min - Average sunshine in February:
6h and 3min - Average sunshine in March:
7h and 4min - Average sunshine in April:
9h and 4min - Average sunshine in May:
10h and 4min - Average sunshine in June:
11h and 2min
- Average sunshine in July:
11h and 5min - Average sunshine in August:
11h and 4min - Average sunshine in September:
9h and 4min - Average sunshine in October:
7h and 2min - Average sunshine in November:
6h and 4min - Average sunshine in December:
6h and 0min
The month with the most sunshine is July (Average sunshine: 11h and 54min).
The month with the least sunshine is January (Average sunshine: 5h and 54min).
Average sunshine days
Dell, MT
- Average sunshine days in January:
19.3 days - Average sunshine days in February:
14.4 days - Average sunshine days in March:
13.8 days - Average sunshine days in April:
10.7 days - Average sunshine days in May:
12.2 days - Average sunshine days in June:
12.3 days
- Average sunshine days in July:
20.7 days - Average sunshine days in August:
19.3 days - Average sunshine days in September:
18.4 days - Average sunshine days in October:
17.3 days - Average sunshine days in November:
18 days - Average sunshine days in December:
18.4 days
The month with the most sunshine days is July (20.7 days).
The month with the least sunshine days is April (10.7 days).
Average UV index
Dell, MT
The month with the highest UV index is July (UV index 5).
The month with the lowest UV index is February (UV index 1).
Average cloud cover
Dell, MT
The month with the most cloud cover is February (Cloud cover 45).
The month with the least cloud cover is July (Cloud cover 13).
Average visibility
Dell, MT
The months with the highest visibility are April, May, June, July, August, September, October and November (6mi).
The month with the lowest visibility is February (4mi).
Dell, Montana, USA
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