Climate and monthly weather forecastBanner, WY
Climate and monthly weather forecast
Weather in January
January, like December, is a freezing cold winter month in Banner, Wyoming, with temperature in the range of an average low of 15.6°F (-9.1°C) and an average high of 30.4°F (-0.9°C). January records an average high-temperature of a still subzero cold 30.4°F (-0.9°C), indicating a minor variation from the preceding month. Weather in January »Weather in February
February, the last month of the winter in Banner, is another freezing cold month, with an average temperature fluctuating between 14.4°F (-9.8°C) and 29.1°F (-1.6°C). In Banner, the month of February is known for its lowest average temperatures, reaching a high of 29.1°F (-1.6°C) and a low of 14.4°F (-9.8°C). Weather in February »Weather in March
The first month of the spring, March, is a wintry month in Banner, Wyoming, with temperature in the range of an average low of 25.3°F (-3.7°C) and an average high of 40.6°F (4.8°C). The start of March signals an increase in the average high-temperature, moving from a subzero cold 29.1°F (-1.6°C) in February to an icy 40.6°F (4.8°C). Weather in March »Weather in April
April is a chilly spring month in Banner, Wyoming, with temperature in the range of an average high of 47.1°F (8.4°C) and an average low of 30.4°F (-0.9°C). With the onset of April, Banner's average high-temperature sees a modest rise, moving from March's cold 40.6°F (4.8°C) to a frosty 47.1°F (8.4°C). Weather in April »Weather in May
The last month of the spring, May, is a refreshing month in Banner, Wyoming, with an average temperature ranging between min 39.4°F (4.1°C) and max 57.2°F (14°C). May brings a rise in the average high-temperature, transitioning from April's chilly 47.1°F (8.4°C) to a moderate 57.2°F (14°C). Weather in May »Weather in June
June, the first month of the summer in Banner, is an agreeable month, with temperature in the range of an average high of 69.4°F (20.8°C) and an average low of 49.3°F (9.6°C). Banner experiences a temperature shift with the start of June, with average high-temperatures moving from a mild 57.2°F (14°C) in May to an agreeable 69.4°F (20.8°C). Weather in June »Weather in July
July is a warm summer month in Banner, Wyoming, with temperature in the range of an average low of 57°F (13.9°C) and an average high of 78.8°F (26°C). July, with its high-temperature average of 78.8°F (26°C) and a low-temperature average of 57°F (13.9°C), is the warmest month. Weather in July »Weather in August
The last month of the summer, August, is also a moderately hot month in Banner, Wyoming, with temperature in the range of an average high of 77.4°F (25.2°C) and an average low of 56.1°F (13.4°C). Banner notes an average high-temperature of a still warm 77.4°F (25.2°C) in August, hardly diverging from July. Weather in August »Weather in September
September, the first month of the autumn in Banner, is still a pleasant month, with an average temperature fluctuating between 68.7°F (20.4°C) and 48.7°F (9.3°C). The average high-temperature slightly decreases in September, shifting from a moderately hot 77.4°F (25.2°C) in August to an agreeable 68.7°F (20.4°C). Weather in September »Weather in October
October, the same as September, is a cool autumn month in Banner, Wyoming, with an average temperature fluctuating between 35.2°F (1.8°C) and 52.2°F (11.2°C). With the onset of October, Banner's weather experiences a distinct temperature drop, moving from a pleasant 68.7°F (20.4°C) in September to a fresh 52.2°F (11.2°C). Weather in October »Weather in November
The last month of the autumn, November, is also an icy month in Banner, Wyoming, with an average temperature fluctuating between 24.4°F (-4.2°C) and 39.7°F (4.3°C). Banner's average high-temperature decreases in November, falling from a fresh 52.2°F (11.2°C) in October to a cold 39.7°F (4.3°C). Weather in November »Weather in December
The first month of the winter, December, is still a freezing cold month in Banner, Wyoming, with an average temperature fluctuating between 15.3°F (-9.3°C) and 29.3°F (-1.5°C). December weather is marked by a drop in the average high-temperature, falling from an icy 39.7°F (4.3°C) in November to a subzero cold 29.3°F (-1.5°C). Weather in December »Updated: Jun 29, 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
Throughout the year, there are 165.2 rainfall days, and 21.22" (539mm) of precipitation is accumulated.
January through May, September through December are months with snowfall.
Throughout the year, there are 78.9 snowfall days, and 46.3" (1176mm) of snow is accumulated.
The months with the lowest UV index are January through April, October through December, with an average maximum UV index of 2.
February brings the lowest temperatures, with an average high of 29.1°F (-1.6°C) and an average low of 14.4°F (-9.8°C).
With an average relative humidity of 79%, February is the most humid month.
February has the least sunshine of the year in Banner, with an average of 6.1h of sunshine.
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.
April is the month with the most snowfall. Snow falls for 8.6 days and accumulates 8.7" (221mm) of snow.
The month with the most rainfall is May, when the rain falls for 22.3 days and typically aggregates up to 3.43" (87mm) of precipitation.
In Banner, snow does not fall in June through August.
The month with the longest days in Banner is June, with an average of 15h and 30min of daylight.
Banner, Wyoming, experiences its highest temperatures in July, with an average peak of 78.8°F (26°C) and a low of 57°F (13.9°C).
July has the most sunshine of the year, with an average of 11.9h of sunshine.
The month with the highest UV index is July, with an average maximum UV index of 6.
With an average relative humidity of 46%, August is the least humid month.
December is the month with the least rainfall. Rain falls for 7.8 days and accumulates 0.75" (19mm) of precipitation.
The month with the shortest days is December, with an average of 8h and 54min of daylight.
Average temperature
Banner, WY
The warmest month (with the highest average high temperature) is July (78.8°F).
The month with the lowest average high temperature is February (29.1°F).
The month with the highest average low temperature is July (57°F).
The coldest month (with the lowest average low temperature) is February (14.4°F).
Average pressure
Banner, WY
- Average pressure in January:
30.13"Hg - Average pressure in February:
30.11"Hg - Average pressure in March:
29.99"Hg - Average pressure in April:
29.92"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:
29.91"Hg - Average pressure in September:
29.93"Hg - Average pressure in October:
29.99"Hg - Average pressure in November:
30.05"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
Banner, WY
- Average wind speed in January:
7mph - Average wind speed in February:
6.6mph - Average wind speed in March:
6.9mph - Average wind speed in April:
7.6mph - Average wind speed in May:
7.2mph - Average wind speed in June:
6.6mph
- Average wind speed in July:
5.8mph - Average wind speed in August:
5.8mph - Average wind speed in September:
6.3mph - Average wind speed in October:
7.1mph - Average wind speed in November:
6.6mph - Average wind speed in December:
6.6mph
The windiest month (with the highest average wind speed) is April (7.6mph).
The calmest months (with the lowest average wind speed) are July and August (5.8mph).
Average humidity
Banner, WY
The month with the highest relative humidity is February (79%).
The month with the lowest relative humidity is August (46%).
Average rainfall
Banner, WY
- Average rainfall in January:
0.94" - Average rainfall in February:
1.18" - Average rainfall in March:
1.65" - Average rainfall in April:
2.72" - Average rainfall in May:
3.43" - Average rainfall in June:
2.44"
- Average rainfall in July:
2.32" - Average rainfall in August:
1.81" - Average rainfall in September:
1.42" - Average rainfall in October:
1.57" - Average rainfall in November:
0.98" - Average rainfall in December:
0.75"
The wettest month (with the highest rainfall) is May (3.43").
The driest month (with the least rainfall) is December (0.75").
Average rainfall days
Banner, WY
- Average rainfall days in January:
9 days - Average rainfall days in February:
8.5 days - Average rainfall days in March:
13 days - Average rainfall days in April:
17.6 days - Average rainfall days in May:
22.3 days - Average rainfall days in June:
18.8 days
- Average rainfall days in July:
18.3 days - Average rainfall days in August:
17.3 days - Average rainfall days in September:
12.5 days - Average rainfall days in October:
12.6 days - Average rainfall days in November:
7.5 days - Average rainfall days in December:
7.8 days
The month with the highest number of rainy days is May (22.3 days).
The month with the least rainy days is November (7.5 days).
Average snowfall
Banner, WY
- Average snowfall in January:
5.75" - Average snowfall in February:
8.35" - Average snowfall in March:
6.73" - Average snowfall in April:
8.7" - Average snowfall in May:
2.17" - Average snowfall in June:
0"
The month with the highest snowfall is April (8.7").
The months with the least snowfall are June, July and August (0").
Average snowfall days
Banner, WY
- Average snowfall days in January:
13.2 days - Average snowfall days in February:
15.8 days - Average snowfall days in March:
10.8 days - Average snowfall days in April:
8.6 days - Average snowfall days in May:
2 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:
0.3 days - Average snowfall days in October:
4.6 days - Average snowfall days in November:
10 days - Average snowfall days in December:
13.6 days
The month with the highest number of snowfall days is February (15.8 days).
The months with the least snowfall days are June, July and August (0 days).
Average daylight / Average sunshine
Banner, WY
- Average daylight in January:
9h and 18min - Average daylight in February:
10h and 30min - Average daylight in March:
12h and 0min - Average daylight in April:
13h and 30min - Average daylight in May:
14h and 48min - Average daylight in June:
15h and 30min
- Average daylight in July:
15h and 12min - Average daylight in August:
14h and 0min - Average daylight in September:
12h and 30min - Average daylight in October:
11h and 0min - Average daylight in November:
9h and 36min - Average daylight in December:
8h and 54min
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:
6h and 18min - Average sunshine in February:
6h and 6min - Average sunshine in March:
8h and 12min - Average sunshine in April:
9h and 42min - Average sunshine in May:
10h and 30min - Average sunshine in June:
11h and 24min
- Average sunshine in July:
11h and 54min - Average sunshine in August:
11h and 42min - Average sunshine in September:
10h and 48min - Average sunshine in October:
6h and 48min - Average sunshine in November:
6h and 48min - Average sunshine in December:
6h and 30min
The month with the most sunshine is July (Average sunshine: 11h and 54min).
The month with the least sunshine is February (Average sunshine: 6h and 6min).
Average sunshine days
Banner, WY
- Average sunshine days in January:
13.6 days - Average sunshine days in February:
9.3 days - Average sunshine days in March:
11.5 days - Average sunshine days in April:
6.8 days - Average sunshine days in May:
5.8 days - Average sunshine days in June:
7.3 days
- Average sunshine days in July:
8.1 days - Average sunshine days in August:
9.2 days - Average sunshine days in September:
13.6 days - Average sunshine days in October:
14.2 days - Average sunshine days in November:
15.2 days - Average sunshine days in December:
14.2 days
The month with the most sunshine days is November (15.2 days).
The month with the least sunshine days is May (5.8 days).
Average UV index
Banner, WY
The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are January, February, March, April, October, November and December (UV index 2).
Average cloud cover
Banner, WY
The months with the most cloud cover are February and April (Cloud cover 37).
The month with the least cloud cover is July (Cloud cover 15).
Average visibility
Banner, WY
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).
