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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, like December, is another subzero cold winter month in Pompeys Pillar, Montana, with an average temperature varying between 31.8°F (-0.1°C) and 17.8°F (-7.9°C). January's onset records a minor alteration in the average high-temperature to a still freezing cold 31.8°F (-0.1°C) from December's 31.3°F (-0.4°C). Weather in January »
Weather in February
The last month of the winter, February, is an icy month in Pompeys Pillar, Montana, with temperature in the range of an average low of 18°F (-7.8°C) and an average high of 32.5°F (0.3°C). The beginning of February records an average high-temperature of a cold 32.5°F (0.3°C), marking a negligible difference from January's 31.8°F (-0.1°C). Weather in February »
Weather in March
March, the first month of the spring in Pompeys Pillar, is a frosty month, with an average temperature varying between 46°F (7.8°C) and 29.7°F (-1.3°C). A rise in the average high-temperature is observed during March, moving from an icy 32.5°F (0.3°C) in February to a frosty 46°F (7.8°C). Weather in March »
Weather in April
April in Pompeys Pillar, Montana, is a fresh spring month, with an average temperature fluctuating between 36.9°F (2.7°C) and 55°F (12.8°C). The arrival of April signals an increase in the average high-temperature, moving from a frosty 46°F (7.8°C) in March to a fresh 55°F (12.8°C). Weather in April »
Weather in May
The last month of the spring, May, is an enjoyable month in Pompeys Pillar, Montana, with an average temperature fluctuating between 45.5°F (7.5°C) and 65.8°F (18.8°C). The transition to May introduces an increase in the average high-temperature, shifting from a fresh 55°F (12.8°C) in April to a comfortable 65.8°F (18.8°C). Weather in May »
Weather in June
The first month of the summer, June, is a warm month in Pompeys Pillar, Montana, with an average temperature fluctuating between 54.5°F (12.5°C) and 77.2°F (25.1°C). The arrival of June brings an increase in high-temperatures, moving from a refreshing 65.8°F (18.8°C) in May to a moderately hot 77.2°F (25.1°C). Weather in June »
Weather in July
July in Pompeys Pillar, Montana, is a hot summer month, with an average temperature ranging between max 87.3°F (30.7°C) and min 62.8°F (17.1°C). July, with its average high-temperature of 87.3°F (30.7°C) and an average low-temperature of 62.8°F (17.1°C), holds the record as the warmest month. The average heat index in July is appraised at a tropical 87.8°F (31°C). Weather in July »
Weather in August
August, the last month of the summer in Pompeys Pillar, is another warm month, with temperature in the range of an average high of 85.1°F (29.5°C) and an average low of 62.2°F (16.8°C). Pompeys Pillar experiences a subtle adjustment in high-temperatures to a warm 85.1°F (29.5°C) with the onset of August, maintaining near parity with July's 87.3°F (30.7°C). Weather in August »
Weather in September
September, the first month of the autumn in Pompeys Pillar, is also a moderately hot month, with temperature in the range of an average low of 54.7°F (12.6°C) and an average high of 75.2°F (24°C). Observing a mild shift, the average high-temperature during September reduces from August's 85.1°F (29.5°C) to a still moderately hot 75.2°F (24°C). Weather in September »
Weather in October
October, the same as September, in Pompeys Pillar, Montana, is another mild autumn month, with an average temperature ranging between min 40.6°F (4.8°C) and max 58.1°F (14.5°C). In October, the meteorological conditions markedly change with the average high-temperature descending from a moderately hot 75.2°F (24°C) in September to a mild 58.1°F (14.5°C). Weather in October »
Weather in November
The last month of the autumn, November, is also a frosty month in Pompeys Pillar, Montana, with an average temperature varying between 28.9°F (-1.7°C) and 44.1°F (6.7°C). Onset of November witnesses a reduction in the average high-temperature, falling from a moderate 58.1°F (14.5°C) in October to a chilly 44.1°F (6.7°C). Weather in November »
Weather in December
The first month of the winter, December, is also a subzero cold month in Pompeys Pillar, Montana, with an average temperature fluctuating between 31.3°F (-0.4°C) and 18.1°F (-7.7°C). Temperature records mark December as the coldest month, with highs averaging 31.3°F (-0.4°C) and lows at 18.1°F (-7.7°C). Weather in December »
Updated: Jul 23, 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 most humid month is January, with an average relative humidity of 78%.
How much does it rain?
In Pompeys Pillar, during the entire year, the rain falls for 103 days and collects up to 11.97" (304mm) of precipitation.
When does it snow?
Months with snowfall are January through May, September through December.
How much does it snow?
In Pompeys Pillar, during the entire year, snow falls for 56.7 days and aggregates up to 25.16" (639mm) of snow.
What are the months with the lowest UV index?
January through March, November and December, with an average maximum UV index of 2, are months with the lowest UV index.
What is the snowiest month?
The month with the most snowfall is February, when snow falls for 12.5 days and typically aggregates up to 5.43" (138mm) of snow.
What is the month with the least sunshine?
February has the least sunshine of the year, with an average of 5.6h of sunshine.
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 rainiest month in Pompeys Pillar?
The month with the most rainfall is May, when the rain falls for 13.6 days and typically aggregates up to 1.81" (46mm) of precipitation.
When it does not snow in Pompeys Pillar?
June through August are months without snowfall.
When are the longest days?
The month with the longest days is June, with an average of 15h and 42min of daylight.
What is the hottest time of year?
July brings the highest temperatures, with an average high of 87.3°F (30.7°C) and an average low of 62.8°F (17.1°C).
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?
July is the month with the highest UV index, with an average maximum UV index of 7.
What is the least humid month?
With an average relative humidity of 38%, August is the least humid month.
What is the driest month?
The month with the least rainfall is August, when the rain falls for 7.5 days and typically collects 0.63" (16mm) of precipitation.
What time of the year is the coldest?
Pompeys Pillar's December weather reaches an average high of 31.3°F (-0.4°C) and an average low of 18.1°F (-7.7°C), making it the coldest month.
What is the month with the shortest days?
The month with the shortest days is December, with an average of 8h and 42min of daylight.
Average temperature
Pompeys Pillar, MT
The warmest month (with the highest average high temperature) is July (87.3°F).
The month with the lowest average high temperature is December (31.3°F).
The month with the highest average low temperature is July (62.8°F).
The coldest month (with the lowest average low temperature) is January (17.8°F).
Average pressure
Pompeys Pillar, MT
- Average pressure in January:
30.13"Hg - Average pressure in February:
30.12"Hg - Average pressure in March:
30"Hg - Average pressure in April:
29.93"Hg - Average pressure in May:
29.91"Hg - Average pressure in June:
29.85"Hg
- Average pressure in July:
29.9"Hg - Average pressure in August:
29.9"Hg - Average pressure in September:
29.93"Hg - Average pressure in October:
29.99"Hg - Average pressure in November:
30.06"Hg - Average pressure in December:
30.12"Hg
The month with the highest atmospheric pressure is January (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.85"Hg).
Average wind speed
Pompeys Pillar, MT
- Average wind speed in January:
8.6mph - Average wind speed in February:
8mph - Average wind speed in March:
8.1mph - Average wind speed in April:
9.1mph - Average wind speed in May:
8.9mph - Average wind speed in June:
8.1mph
- Average wind speed in July:
7.3mph - Average wind speed in August:
7.4mph - Average wind speed in September:
8mph - Average wind speed in October:
8.7mph - Average wind speed in November:
8.3mph - Average wind speed in December:
8.2mph
The windiest month (with the highest average wind speed) is April (9.1mph).
The calmest month (with the lowest average wind speed) is July (7.3mph).
Average humidity
Pompeys Pillar, MT
The month with the highest relative humidity is January (78%).
The month with the lowest relative humidity is August (38%).
Average rainfall
Pompeys Pillar, MT
- Average rainfall in January:
0.79" - Average rainfall in February:
0.87" - Average rainfall in March:
0.98" - Average rainfall in April:
1.65" - Average rainfall in May:
1.81" - Average rainfall in June:
1.14"
- Average rainfall in July:
0.75" - Average rainfall in August:
0.63" - Average rainfall in September:
1.06" - Average rainfall in October:
0.91" - Average rainfall in November:
0.71" - Average rainfall in December:
0.67"
The wettest month (with the highest rainfall) is May (1.81").
The driest month (with the least rainfall) is August (0.63").
Average rainfall days
Pompeys Pillar, MT
- Average rainfall days in January:
6.8 days - Average rainfall days in February:
6 days - Average rainfall days in March:
9.7 days - Average rainfall days in April:
13 days - Average rainfall days in May:
13.6 days - Average rainfall days in June:
10.3 days
- Average rainfall days in July:
6.9 days - Average rainfall days in August:
7.5 days - Average rainfall days in September:
6.7 days - Average rainfall days in October:
9.7 days - Average rainfall days in November:
6.9 days - Average rainfall days in December:
5.9 days
The month with the highest number of rainy days is May (13.6 days).
The month with the least rainy days is December (5.9 days).
Average snowfall
Pompeys Pillar, MT
The month with the highest snowfall is February (5.43").
The months with the least snowfall are June, July and August (0").
Average snowfall days
Pompeys Pillar, MT
- Average snowfall days in January:
11.8 days - Average snowfall days in February:
12.5 days - Average snowfall days in March:
8.3 days - Average snowfall days in April:
4.6 days - Average snowfall days in May:
0.5 days - Average snowfall days in June:
0 days
- Average snowfall days in July:
0 days - Average snowfall days in August:
0 days - Average snowfall days in September:
0.1 days - Average snowfall days in October:
1.8 days - Average snowfall days in November:
6.3 days - Average snowfall days in December:
10.8 days
The month with the highest number of snowfall days is February (12.5 days).
The months with the least snowfall days are June, July and August (0 days).
Average daylight / Average sunshine
Pompeys Pillar, MT
- Average daylight in January:
9h and 1min - Average daylight in February:
10h and 2min - Average daylight in March:
12h and 0min - Average daylight in April:
13h and 4min - Average daylight in May:
15h and 0min - Average daylight in June:
15h and 4min
- Average daylight in July:
15h and 2min - Average daylight in August:
14h and 1min - Average daylight in September:
12h and 3min - Average daylight in October:
10h and 5min - Average daylight in November:
9h and 3min - Average daylight in December:
8h and 4min
The month with the longest days is June (Average daylight: 15h and 42min).
The month with the shortest days is December (Average daylight: 8h and 42min).
- Average sunshine in January:
5h and 5min - Average sunshine in February:
5h and 4min - Average sunshine in March:
7h and 5min - Average sunshine in April:
9h and 3min - Average sunshine in May:
10h and 1min - Average sunshine in June:
11h and 4min
- Average sunshine in July:
11h and 5min - Average sunshine in August:
11h and 5min - Average sunshine in September:
10h and 4min - Average sunshine in October:
6h and 4min - Average sunshine in November:
6h and 2min - Average sunshine in December:
5h and 5min
The month with the most sunshine is July (Average sunshine: 11h and 54min).
The month with the least sunshine is February (Average sunshine: 5h and 36min).
Average sunshine days
Pompeys Pillar, MT
- Average sunshine days in January:
16.4 days - Average sunshine days in February:
13.3 days - Average sunshine days in March:
15.3 days - Average sunshine days in April:
13.4 days - Average sunshine days in May:
14.4 days - Average sunshine days in June:
17.9 days
- Average sunshine days in July:
20.9 days - Average sunshine days in August:
20.7 days - Average sunshine days in September:
21.5 days - Average sunshine days in October:
18.1 days - Average sunshine days in November:
18.2 days - Average sunshine days in December:
17.3 days
The month with the most sunshine days is September (21.5 days).
The month with the least sunshine days is February (13.3 days).
Average UV index
Pompeys Pillar, MT
The month with the highest UV index is July (UV index 7).
The months with the lowest UV index are January, February, March, November and December (UV index 2).
Average cloud cover
Pompeys Pillar, MT
The month with the most cloud cover is February (Cloud cover 43).
The month with the least cloud cover is July (Cloud cover 13).
Average visibility
Pompeys Pillar, MT
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
Pompeys Pillar, Montana, USA
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