Climate and monthly weather forecastBig Horn, WY
Climate and monthly weather forecast
Weather in January
January, like December, is a freezing cold winter month in Big Horn, Wyoming, with an average temperature fluctuating between 30.4°F (-0.9°C) and 15.6°F (-9.1°C). As December turns into January, the average high-temperatures rest at a still freezing cold 30.4°F (-0.9°C), showing a minor variation from the prior month. Weather in January »Weather in February
February, the last month of the winter in Big Horn, is also a subzero cold month, with temperature in the range of an average low of 14.4°F (-9.8°C) and an average high of 29.1°F (-1.6°C). Big Horn experiences its lowest temperatures in February, with an average peak of 29.1°F (-1.6°C) and a low of 14.4°F (-9.8°C). Weather in February »Weather in March
March, the first month of the spring in Big Horn, is an icy month, with temperature in the range of an average high of 40.6°F (4.8°C) and an average low of 25.3°F (-3.7°C). As March sets, the average high-temperature shows an increase, moving up from a subzero cold 29.1°F (-1.6°C) in February to a wintry 40.6°F (4.8°C). Weather in March »Weather in April
April in Big Horn, Wyoming, is a frosty spring month, with an average temperature varying between 30.4°F (-0.9°C) and 47.1°F (8.4°C). As Big Horn welcomes April, the average high-temperature sees a modest rise, transitioning from an icy 40.6°F (4.8°C) in March to a frosty 47.1°F (8.4°C). Weather in April »Weather in May
May, the last month of the spring in Big Horn, is a moderate month, with temperature in the range of an average low of 39.4°F (4.1°C) and an average high of 57.2°F (14°C). The beginning of May signals a rise in the average high-temperature, moving from a frosty 47.1°F (8.4°C) in April to a mild 57.2°F (14°C). Weather in May »Weather in June
June, the first month of the summer in Big Horn, is an agreeable month, with an average temperature ranging between max 69.4°F (20.8°C) and min 49.3°F (9.6°C). June sees a rise in the average high-temperature, climbing from a moderate 57.2°F (14°C) in May to a pleasant 69.4°F (20.8°C). Weather in June »Weather in July
July in Big Horn, Wyoming, is a moderately hot summer month, with an average temperature fluctuating between 78.8°F (26°C) and 57°F (13.9°C). The warmest month is July, with an average high-temperature of 78.8°F (26°C) and an average low-temperature of 57°F (13.9°C). Weather in July »Weather in August
The last month of the summer, August, is also a moderately hot month in Big Horn, Wyoming, with an average temperature ranging between max 77.4°F (25.2°C) and min 56.1°F (13.4°C). Big Horn experiences an average high-temperature of a still warm 77.4°F (25.2°C) in August, marking an insignificant shift from 78.8°F (26°C) in July. Weather in August »Weather in September
The first month of the autumn, September, is also an agreeable month in Big Horn, Wyoming, with an average temperature ranging between min 48.7°F (9.3°C) and max 68.7°F (20.4°C). With the onset of September, Big Horn experiences a modest temperature adjustment, with the average high-temperature gently receding from a warm 77.4°F (25.2°C) in August to a pleasant 68.7°F (20.4°C). Weather in September »Weather in October
October, the same as September, is another fresh autumn month in Big Horn, Wyoming, with an average temperature varying between 35.2°F (1.8°C) and 52.2°F (11.2°C). A clear reduction in the average high-temperature marks the arrival of October, falling from an agreeable 68.7°F (20.4°C) in September to a cool 52.2°F (11.2°C). Weather in October »Weather in November
November, the last month of the autumn in Big Horn, is also an icy month, with temperature in the range of an average high of 39.7°F (4.3°C) and an average low of 24.4°F (-4.2°C). November ushers in a slight temperature change, with average high-temperatures reducing from October's fresh 52.2°F (11.2°C) to an icy 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 Big Horn, Wyoming, with an average temperature varying between 15.3°F (-9.3°C) and 29.3°F (-1.5°C). Big Horn's December weather shows a moderate shift in high-temperatures, falling from November's wintry 39.7°F (4.3°C) to a subzero cold 29.3°F (-1.5°C). Weather in December »Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature
Big Horn, 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
Big Horn, 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
Big Horn, 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
Big Horn, WY
The month with the highest relative humidity is February (79%).
The month with the lowest relative humidity is August (46%).
Average rainfall
Big Horn, 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
Big Horn, 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
Big Horn, 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
Big Horn, 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
Big Horn, 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
Big Horn, 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
Big Horn, 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
Big Horn, 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
Big Horn, 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).





