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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 Altamont, Wyoming, is another subzero cold winter month, with temperature in the range of an average high of 27.7°F (-2.4°C) and an average low of 10.8°F (-11.8°C). As January takes its course, Altamont's average high-temperature registers at a still freezing cold 27.7°F (-2.4°C), closely aligning with the preceding month. Weather in January »
Weather in February
February, the last month of the winter in Altamont, is also a subzero cold month, with an average temperature varying between 28.8°F (-1.8°C) and 13.3°F (-10.4°C). February's beginning signals an average high-temperature of a still subzero cold 28.8°F (-1.8°C), barely different from January's 27.7°F (-2.4°C). Weather in February »
Weather in March
The first month of the spring, March, is a wintry month in Altamont, Wyoming, with temperature in the range of an average low of 20.7°F (-6.3°C) and an average high of 35.4°F (1.9°C). Altamont's transition into March sees a mild rise in the average high-temperature, edging from a subzero cold 28.8°F (-1.8°C) in February to a wintry 35.4°F (1.9°C). Weather in March »
Weather in April
April is a frosty spring month in Altamont, Wyoming, with temperature in the range of an average high of 44.6°F (7°C) and an average low of 27.3°F (-2.6°C). Altamont sees an increase in average high-temperatures during April, moving from a cold 35.4°F (1.9°C) in March to a frosty 44.6°F (7°C). Weather in April »
Weather in May
The last month of the spring, May, is a moderate month in Altamont, Wyoming, with an average temperature ranging between max 56.7°F (13.7°C) and min 35.4°F (1.9°C). The shift from April to May sees an increase in the average high-temperature, transitioning from a frosty 44.6°F (7°C) to a refreshing 56.7°F (13.7°C). Weather in May »
Weather in June
June, the first month of the summer in Altamont, is a pleasant month, with an average temperature ranging between max 70.2°F (21.2°C) and min 43.5°F (6.4°C). With the onset of June, Altamont experiences a temperature shift, with the average high-temperature moving from a refreshing 56.7°F (13.7°C) in May to an agreeable 70.2°F (21.2°C). Weather in June »
Weather in July
July in Altamont, Wyoming, is a moderately hot summer month, with an average temperature fluctuating between 51.6°F (10.9°C) and 79.2°F (26.2°C). July, recognised by an average high temperature of 79.2°F (26.2°C) and a low of 51.6°F (10.9°C), is Altamont's warmest month. Weather in July »
Weather in August
August, the last month of the summer in Altamont, is also a moderately hot month, with an average temperature ranging between min 51.4°F (10.8°C) and max 77.5°F (25.3°C). The arrival of August denotes a barely perceptible change in the average high-temperatures to a still moderately hot 77.5°F (25.3°C) from July's 79.2°F (26.2°C). Weather in August »
Weather in September
The first month of the autumn, September, is still a pleasant month in Altamont, Wyoming, with an average temperature ranging between min 45°F (7.2°C) and max 68.5°F (20.3°C). The average high-temperature decreases in September, shifting from a moderately hot 77.5°F (25.3°C) in August to a pleasant 68.5°F (20.3°C). Weather in September »
Weather in October
October, like September, in Altamont, Wyoming, is another fresh autumn month, with an average temperature fluctuating between 32.9°F (0.5°C) and 51.8°F (11°C). As Altamont transitions into October, the average high-temperature shows a marked reduction, decreasing from an agreeable 68.5°F (20.3°C) in September to a fresh 51.8°F (11°C). Weather in October »
Weather in November
November, the last month of the autumn in Altamont, is also a wintry month, with temperature in the range of an average high of 38.8°F (3.8°C) and an average low of 22.1°F (-5.5°C). The start of November comes with a reduction in the average high-temperature, receding from a cool 51.8°F (11°C) in October to an icy 38.8°F (3.8°C). Weather in November »
Weather in December
December, the first month of the winter in Altamont, is still a freezing cold month, with an average temperature fluctuating between 10.9°F (-11.7°C) and 26.4°F (-3.1°C). December is the coldest month of the year, registering average temperatures as high as 26.4°F (-3.1°C) and as low as 10.9°F (-11.7°C). Weather in December »
[Resources]Frequently asked questions
What are the most humid months in Altamont?
The months with the highest humidity in Altamont, Wyoming, are January and February, with an average relative humidity of 87%.
How much does it rain in Altamont?
Throughout the year, in Altamont, there are 94.2 rainfall days, and 11.5" (292mm) of precipitation is accumulated.
When does it snow in Altamont?
Months with snowfall in Altamont are January through June, September through December.
How many days does it snow in Altamont?
Throughout the year, there are 99.3 snowfall days, and 56.22" (1428mm) of snow is accumulated.
What is the month with the least sunshine in Altamont?
January has the least sunshine of the year in Altamont, Wyoming, with an average of 5.8h of sunshine.
When does it snow the most in Altamont?
The month with the most snowfall in Altamont, Wyoming, is March, when snow falls for 15.9 days and typically aggregates up to 10" (254mm) of snow.
When is Daylight Saving Time (DST) in Altamont?
On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts in Altamont, Wyoming, 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 Altamont?
The wettest months in Altamont are April and May, with an average 1.38" (35mm) of rainfall.
When are the longest days in Altamont?
With an average of 15h and 6min of daylight, June has the longest days of the year.
What is the month with the highest UV index in Altamont?
The months with the highest UV index in Altamont are June through August, with an average maximum UV index of 5.
What month is the hottest in Altamont?
With an average high-temperature of 79.2°F (26.2°C) and an average low-temperature of 51.6°F (10.9°C), July is the warmest month in Altamont, Wyoming.
When it does not snow in Altamont?
July and August are months without snowfall in Altamont.
What is the least humid month in Altamont?
The least humid month in Altamont, Wyoming, is August, with an average relative humidity of 39%.
What is the driest month in Altamont?
The month with the least rainfall in Altamont is August, when the rain falls for 7.3 days and typically collects 0.51" (13mm) of precipitation.
What month has the most sunshine in Altamont?
August has the most sunshine of the year in Altamont, Wyoming, with an average of 12h of sunshine.
When is the lowest UV index in Altamont?
November and December, with an average maximum UV index of 1, are months with the lowest UV index.
What time of the year is the coldest in Altamont?
With average high temperatures of 26.4°F (-3.1°C) and lows of 10.9°F (-11.7°C), December is the coldest month.
What is the month with the shortest days in Altamont?
December has the shortest days of the year, with an average of 9h and 18min of daylight.
Average temperature
Altamont, WY
The warmest month (with the highest average high temperature) is July (79.2°F).
The month with the lowest average high temperature is December (26.4°F).
The month with the highest average low temperature is July (51.6°F).
The coldest month (with the lowest average low temperature) is January (10.8°F).
Average pressure
Altamont, WY
- Average pressure in January:
30.29"Hg - Average pressure in February:
30.15"Hg - Average pressure in March:
30.04"Hg - Average pressure in April:
29.94"Hg - Average pressure in May:
29.9"Hg - Average pressure in June:
29.88"Hg
- Average pressure in July:
29.93"Hg - Average pressure in August:
29.93"Hg - Average pressure in September:
29.96"Hg - Average pressure in October:
30.04"Hg - Average pressure in November:
30.14"Hg - Average pressure in December:
30.24"Hg
The month with the highest atmospheric pressure is January (30.29"Hg).
The month with the lowest atmospheric pressure is June (29.88"Hg).
Average wind speed
Altamont, WY
- Average wind speed in January:
7mph - Average wind speed in February:
7.8mph - Average wind speed in March:
7.5mph - Average wind speed in April:
8.2mph - Average wind speed in May:
7.5mph - Average wind speed in June:
7.8mph
- Average wind speed in July:
6.7mph - Average wind speed in August:
7mph - Average wind speed in September:
7.3mph - Average wind speed in October:
7.6mph - Average wind speed in November:
7.8mph - Average wind speed in December:
6.8mph
The windiest month (with the highest average wind speed) is April (8.2mph).
The calmest month (with the lowest average wind speed) is July (6.7mph).
Average humidity
Altamont, WY
The months with the highest relative humidity are January and February (87%).
The month with the lowest relative humidity is August (39%).
Average rainfall
Altamont, WY
- Average rainfall in January:
0.94" - Average rainfall in February:
1.1" - Average rainfall in March:
1.34" - Average rainfall in April:
1.38" - Average rainfall in May:
1.38" - Average rainfall in June:
0.75"
- Average rainfall in July:
0.59" - Average rainfall in August:
0.51" - Average rainfall in September:
0.71" - Average rainfall in October:
0.83" - Average rainfall in November:
0.83" - Average rainfall in December:
1.14"
The wettest months (with the highest rainfall) are April and May (1.38").
The driest month (with the least rainfall) is August (0.51").
Average rainfall days
Altamont, WY
- Average rainfall days in January:
6.5 days - Average rainfall days in February:
5.5 days - Average rainfall days in March:
9.3 days - Average rainfall days in April:
10.3 days - Average rainfall days in May:
11.9 days - Average rainfall days in June:
7.8 days
- Average rainfall days in July:
7.6 days - Average rainfall days in August:
7.3 days - Average rainfall days in September:
8 days - Average rainfall days in October:
5.8 days - Average rainfall days in November:
7.1 days - Average rainfall days in December:
7.1 days
The month with the highest number of rainy days is May (11.9 days).
The month with the least rainy days is February (5.5 days).
Average snowfall
Altamont, WY
- Average snowfall in January:
7.36" - Average snowfall in February:
7.72" - Average snowfall in March:
10" - Average snowfall in April:
8.03" - Average snowfall in May:
3.11" - Average snowfall in June:
0.91"
The month with the highest snowfall is March (10").
The months with the least snowfall are July and August (0").
Average snowfall days
Altamont, WY
- Average snowfall days in January:
14.3 days - Average snowfall days in February:
16.3 days - Average snowfall days in March:
15.9 days - Average snowfall days in April:
12.7 days - Average snowfall days in May:
5.8 days - Average snowfall days in June:
1 days
- Average snowfall days in July:
0 days - Average snowfall days in August:
0 days - Average snowfall days in September:
1.1 days - Average snowfall days in October:
5.5 days - Average snowfall days in November:
11.2 days - Average snowfall days in December:
15.5 days
The month with the highest number of snowfall days is February (16.3 days).
The months with the least snowfall days are July and August (0 days).
Average daylight / Average sunshine
Altamont, WY
- Average daylight in January:
9h and 4min - Average daylight in February:
10h and 4min - Average daylight in March:
12h and 0min - Average daylight in April:
13h and 2min - Average daylight in May:
14h and 3min - Average daylight in June:
15h and 1min
- Average daylight in July:
14h and 5min - Average daylight in August:
13h and 5min - Average daylight in September:
12h and 3min - Average daylight in October:
11h and 1min - Average daylight in November:
9h and 5min - Average daylight in December:
9h and 2min
The month with the longest days is June (Average daylight: 15h and 6min).
The month with the shortest days is December (Average daylight: 9h and 18min).
- Average sunshine in January:
5h and 5min - Average sunshine in February:
6h and 1min - Average sunshine in March:
7h and 3min - Average sunshine in April:
9h and 5min - Average sunshine in May:
11h and 1min - Average sunshine in June:
11h and 5min
- Average sunshine in July:
11h and 5min - Average sunshine in August:
12h and 0min - Average sunshine in September:
10h and 2min - Average sunshine in October:
7h and 3min - Average sunshine in November:
6h and 5min - Average sunshine in December:
6h and 0min
The month with the most sunshine is August (Average sunshine: 12h and 0min).
The month with the least sunshine is January (Average sunshine: 5h and 48min).
Average sunshine days
Altamont, WY
- Average sunshine days in January:
16.3 days - Average sunshine days in February:
11.4 days - Average sunshine days in March:
12.4 days - Average sunshine days in April:
10.8 days - Average sunshine days in May:
12.8 days - Average sunshine days in June:
19.5 days
- Average sunshine days in July:
17.3 days - Average sunshine days in August:
16.8 days - Average sunshine days in September:
17 days - Average sunshine days in October:
18.8 days - Average sunshine days in November:
17.5 days - Average sunshine days in December:
15.1 days
The month with the most sunshine days is June (19.5 days).
The month with the least sunshine days is April (10.8 days).
Average UV index
Altamont, WY
The months with the highest UV index are June, July and August (UV index 5).
The months with the lowest UV index are November and December (UV index 1).
Average cloud cover
Altamont, WY
The month with the most cloud cover is February (Cloud cover 45).
The month with the least cloud cover is August (Cloud cover 10).
Average visibility
Altamont, WY
The months with the highest visibility are April, May, June, July, August, September, October and November (6mi).
The months with the lowest visibility are January and February (4mi).
Altamont, Wyoming, USA
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