Climate and monthly weather forecastEtna, WY
Climate and monthly weather forecast
Weather in January
January, like December, is a freezing cold winter month in Etna, Wyoming, with an average temperature fluctuating between 26.1°F (-3.3°C) and 7.3°F (-13.7°C). The advent of January sees the average high-temperature at a still subzero cold 26.1°F (-3.3°C), subtly shifted from December's 24.3°F (-4.3°C). Weather in January »Weather in February
February, the last month of the winter in Etna, is another freezing cold month, with an average temperature ranging between min 9.9°F (-12.3°C) and max 27.3°F (-2.6°C). With the onset of February, a modest change to a still subzero cold 27.3°F (-2.6°C) from January's 26.1°F (-3.3°C) is noted in high-temperature. Weather in February »Weather in March
March, the first month of the spring in Etna, is a cold month, with an average temperature ranging between max 33.8°F (1°C) and min 16.9°F (-8.4°C). With the onset of March, Etna experiences a subtle temperature shift, with the average high-temperature moving from a freezing cold 27.3°F (-2.6°C) in February to an icy 33.8°F (1°C). Weather in March »Weather in April
April, like March, in Etna, Wyoming, is an icy spring month, with an average temperature ranging between min 22.8°F (-5.1°C) and max 42.1°F (5.6°C). Observing a slight rise in April, the average high-temperature shifts from March's 33.8°F (1°C) to a still cold 42.1°F (5.6°C). Weather in April »Weather in May
The last month of the spring, May, is a mild month in Etna, Wyoming, with an average temperature varying between 31.3°F (-0.4°C) and 55.4°F (13°C). The commencement of May sees a shift in the average high-temperature, moving from a wintry 42.1°F (5.6°C) in April to a mild 55.4°F (13°C). Weather in May »Weather in June
The first month of the summer, June, is a refreshing month in Etna, Wyoming, with an average temperature varying between 37.9°F (3.3°C) and 66.6°F (19.2°C). The arrival of June signals an increase in the average high-temperature, moving from a moderate 55.4°F (13°C) in May to a still refreshing 66.6°F (19.2°C). Weather in June »Weather in July
July in Etna, Wyoming, is a moderately hot summer month, with an average temperature varying between 45.3°F (7.4°C) and 77.5°F (25.3°C). With average high and low temperatures of 77.5°F (25.3°C) and 45.3°F (7.4°C) respectively, July is Etna's warmest month. Weather in July »Weather in August
The last month of the summer, August, is also a moderately hot month in Etna, Wyoming, with temperature in the range of an average high of 76.5°F (24.7°C) and an average low of 45.3°F (7.4°C). The initiation of August records an average high-temperature of a still warm 76.5°F (24.7°C), displaying a near consistency with the previous month. Weather in August »Weather in September
September, the first month of the autumn in Etna, is still a refreshing month, with temperature in the range of an average high of 66.6°F (19.2°C) and an average low of 40.1°F (4.5°C). The commencement of September involves a temperature shift, with the average high-temperature dropping from a warm 76.5°F (24.7°C) in August to an enjoyable 66.6°F (19.2°C). Weather in September »Weather in October
October, like September, is a frosty autumn month in Etna, Wyoming, with an average temperature ranging between max 48.9°F (9.4°C) and min 29.1°F (-1.6°C). Etna's transition into October marks a considerable drop in the average high-temperature, moving down from a comfortable 66.6°F (19.2°C) in September to a chilly 48.9°F (9.4°C). Weather in October »Weather in November
November, the last month of the autumn in Etna, is also an icy month, with an average temperature ranging between max 35.1°F (1.7°C) and min 18.5°F (-7.5°C). November comes with a decrease in the average high-temperature, falling from a chilly 48.9°F (9.4°C) in October to a wintry 35.1°F (1.7°C). Weather in November »Weather in December
December, the first month of the winter in Etna, is still a freezing cold month, with an average temperature fluctuating between 24.3°F (-4.3°C) and 8.8°F (-12.9°C). In Etna, Wyoming, the lowest average temperatures are observed in December, with a high of 24.3°F (-4.3°C) and a low of 8.8°F (-12.9°C). Weather in December »Updated: Feb 14, 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
In Etna, during the entire year, the rain falls for 127 days and collects up to 24.29" (617mm) of precipitation.
January through June, September through December are months with snowfall in Etna.
Throughout the year, in Etna, there are 126.6 snowfall days, and 110.28" (2801mm) of snow is accumulated.
January through March, November and December, with an average maximum UV index of 1, are months with the lowest UV index.
With an average relative humidity of 94%, February is the most humid month.
The month with the most rainfall in Etna, Wyoming, is February, when the rain falls for 5.6 days and typically aggregates up to 2.91" (74mm) of precipitation.
February is the month with the most snowfall in Etna. Snow falls for 22.3 days and accumulates 22.91" (582mm) of snow.
February has the least sunshine of the year in Etna, with an average of 4h of sunshine.
On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts in Etna, 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.
The month with the longest days is June, with an average of 15h and 18min of daylight.
Etna, Wyoming, experiences its highest temperatures in July, with an average peak of 77.5°F (25.3°C) and a low of 45.3°F (7.4°C).
July is the month with the least rainfall in Etna, Wyoming. Rain falls for 10.4 days and accumulates 0.91" (23mm) of precipitation.
July and August are months without snowfall in Etna, Wyoming.
The month with the most sunshine is July, with an average of 11.9h of sunshine.
July is the month with the highest UV index in Etna, Wyoming, with an average maximum UV index of 5.
With an average relative humidity of 46%, August is the least humid month in Etna.
The coldest month is December, with an average high-temperature of 24.3°F (-4.3°C) and an average low-temperature of 8.8°F (-12.9°C).
With an average of 9h and 6min of daylight, December has the shortest days of the year in Etna.
Average temperature
Etna, WY
The warmest month (with the highest average high temperature) is July (77.5°F).
The month with the lowest average high temperature is December (24.3°F).
The months with the highest average low temperature are July and August (45.3°F).
The coldest month (with the lowest average low temperature) is January (7.3°F).
Average pressure
Etna, WY
- Average pressure in January:
30.28"Hg - Average pressure in February:
30.16"Hg - Average pressure in March:
30.07"Hg - Average pressure in April:
29.96"Hg - Average pressure in May:
29.92"Hg - Average pressure in June:
29.91"Hg
- Average pressure in July:
29.97"Hg - Average pressure in August:
29.97"Hg - Average pressure in September:
29.98"Hg - Average pressure in October:
30.06"Hg - Average pressure in November:
30.16"Hg - Average pressure in December:
30.25"Hg
The month with the highest atmospheric pressure is January (30.28"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).
Average wind speed
Etna, WY
- Average wind speed in January:
4.3mph - Average wind speed in February:
4.9mph - Average wind speed in March:
5mph - Average wind speed in April:
5mph - Average wind speed in May:
5mph - Average wind speed in June:
5.7mph
- Average wind speed in July:
5.5mph - Average wind speed in August:
5.4mph - Average wind speed in September:
5.2mph - Average wind speed in October:
4.8mph - Average wind speed in November:
4.7mph - Average wind speed in December:
4.4mph
The windiest month (with the highest average wind speed) is June (5.7mph).
The calmest month (with the lowest average wind speed) is January (4.3mph).
Average humidity
Etna, WY
The month with the highest relative humidity is February (94%).
The month with the lowest relative humidity is August (46%).
Average rainfall
Etna, WY
- Average rainfall in January:
2.64" - Average rainfall in February:
2.91" - Average rainfall in March:
2.32" - Average rainfall in April:
2.83" - Average rainfall in May:
2.52" - Average rainfall in June:
2.2"
- Average rainfall in July:
0.91" - Average rainfall in August:
0.94" - Average rainfall in September:
1.46" - Average rainfall in October:
1.65" - Average rainfall in November:
1.89" - Average rainfall in December:
2.01"
The wettest month (with the highest rainfall) is February (2.91").
The driest month (with the least rainfall) is July (0.91").
Average rainfall days
Etna, WY
- Average rainfall days in January:
4.6 days - Average rainfall days in February:
5.6 days - Average rainfall days in March:
11.8 days - Average rainfall days in April:
16.6 days - Average rainfall days in May:
17.9 days - Average rainfall days in June:
14.1 days
- Average rainfall days in July:
10.4 days - Average rainfall days in August:
10.6 days - Average rainfall days in September:
11.1 days - Average rainfall days in October:
11.8 days - Average rainfall days in November:
6.7 days - Average rainfall days in December:
5.8 days
The month with the highest number of rainy days is May (17.9 days).
The month with the least rainy days is January (4.6 days).
Average snowfall
Etna, WY
- Average snowfall in January:
22.09" - Average snowfall in February:
22.91" - Average snowfall in March:
15.55" - Average snowfall in April:
11.77" - Average snowfall in May:
2.87" - Average snowfall in June:
0.28"
The month with the highest snowfall is February (22.91").
The months with the least snowfall are July and August (0").
Average snowfall days
Etna, WY
- Average snowfall days in January:
20.6 days - Average snowfall days in February:
22.3 days - Average snowfall days in March:
19.9 days - Average snowfall days in April:
14.8 days - Average snowfall days in May:
4.1 days - Average snowfall days in June:
0.7 days
- Average snowfall days in July:
0 days - Average snowfall days in August:
0 days - Average snowfall days in September:
0.5 days - Average snowfall days in October:
7.1 days - Average snowfall days in November:
14.3 days - Average snowfall days in December:
22.3 days
The months with the highest number of snowfall days are February and December (22.3 days).
The months with the least snowfall days are July and August (0 days).
Average daylight / Average sunshine
Etna, WY
- Average daylight in January:
9h and 24min - Average daylight in February:
10h and 36min - Average daylight in March:
12h and 0min - Average daylight in April:
13h and 24min - Average daylight in May:
14h and 42min - Average daylight in June:
15h and 18min
- Average daylight in July:
15h and 0min - Average daylight in August:
13h and 54min - Average daylight in September:
12h and 30min - Average daylight in October:
11h and 0min - Average daylight in November:
9h and 42min - Average daylight in December:
9h and 6min
The month with the longest days is June (Average daylight: 15h and 18min).
The month with the shortest days is December (Average daylight: 9h and 6min).
- Average sunshine in January:
4h and 6min - Average sunshine in February:
4h and 0min - Average sunshine in March:
5h and 24min - Average sunshine in April:
8h and 12min - Average sunshine in May:
10h and 6min - Average sunshine in June:
11h and 6min
- Average sunshine in July:
11h and 54min - Average sunshine in August:
11h and 42min - Average sunshine in September:
10h and 6min - Average sunshine in October:
6h and 36min - Average sunshine in November:
5h and 30min - Average sunshine in December:
4h and 12min
The month with the most sunshine is July (Average sunshine: 11h and 54min).
The month with the least sunshine is February (Average sunshine: 4h and 0min).
Average sunshine days
Etna, WY
- Average sunshine days in January:
10.4 days - Average sunshine days in February:
5.8 days - Average sunshine days in March:
6.3 days - Average sunshine days in April:
5.3 days - Average sunshine days in May:
7.8 days - Average sunshine days in June:
12.8 days
- Average sunshine days in July:
16.1 days - Average sunshine days in August:
15.3 days - Average sunshine days in September:
16.2 days - Average sunshine days in October:
15 days - Average sunshine days in November:
13.1 days - Average sunshine days in December:
9.3 days
The month with the most sunshine days is September (16.2 days).
The month with the least sunshine days is April (5.3 days).
Average UV index
Etna, WY
The month with the highest UV index is July (UV index 5).
The months with the lowest UV index are January, February, March, November and December (UV index 1).
Average cloud cover
Etna, WY
The month with the most cloud cover is February (Cloud cover 67).
The months with the least cloud cover are July and August (Cloud cover 13).
Average visibility
Etna, WY
The months with the highest visibility are May, June, July, August, September and October (6mi).
The months with the lowest visibility are January, February and December (3mi).
