Climate and monthly weather forecastThree River Junction, WY
Climate and monthly weather forecast
Weather in January
January, like December, is a freezing cold winter month in Three River Junction, Wyoming, with an average temperature fluctuating between 5.4°F (-14.8°C) and 21°F (-6.1°C). The start of January marks an average high-temperature of a still freezing cold 21°F (-6.1°C), hardly distinguishable from the conditions in December. Weather in January »Weather in February
February, the last month of the winter in Three River Junction, is another freezing cold month, with temperature in the range of an average low of 6.3°F (-14.3°C) and an average high of 22.3°F (-5.4°C). With the advent of February, Three River Junction's high-temperatures adjust to a still subzero cold 22.3°F (-5.4°C), closely aligning with the preceding month. Weather in February »Weather in March
March, the first month of the spring in Three River Junction, is still a freezing cold month, with temperature in the range of an average high of 29.1°F (-1.6°C) and an average low of 13.5°F (-10.3°C). The shift into March is characterized by a subtle rise in the average high-temperature, transitioning from February's 22.3°F (-5.4°C) to a still freezing cold 29.1°F (-1.6°C). Weather in March »Weather in April
April in Three River Junction, Wyoming, is a wintry spring month, with an average temperature ranging between max 35.6°F (2°C) and min 18.3°F (-7.6°C). With the start of April, the average high-temperature marginally shifts from March's freezing cold 29.1°F (-1.6°C) to a wintry 35.6°F (2°C). Weather in April »Weather in May
May, the last month of the spring in Three River Junction, is a frosty month, with an average temperature varying between 28°F (-2.2°C) and 48.4°F (9.1°C). As May arrives, Three River Junction's weather shows an increase in high-temperatures, moving from April's cold 35.6°F (2°C) to a frosty 48.4°F (9.1°C). Weather in May »Weather in June
June, the first month of the summer in Three River Junction, is a comfortable month, with an average temperature ranging between max 61°F (16.1°C) and min 37°F (2.8°C). The shift from May to June sees an increase in the average high-temperature, transitioning from a chilly 48.4°F (9.1°C) to a refreshing 61°F (16.1°C). Weather in June »Weather in July
July is a pleasant summer month in Three River Junction, Wyoming, with an average temperature ranging between min 43.7°F (6.5°C) and max 72.1°F (22.3°C). Three River Junction records the warmest temperatures in July, averaging a high of 72.1°F (22.3°C) and a low of 43.7°F (6.5°C). Weather in July »Weather in August
The last month of the summer, August, is another pleasant month in Three River Junction, Wyoming, with temperature in the range of an average low of 43.3°F (6.3°C) and an average high of 70.7°F (21.5°C). August brings an average high-temperature of a still agreeable 70.7°F (21.5°C), showing a slight difference from July's 72.1°F (22.3°C). Weather in August »Weather in September
The first month of the autumn, September, is still a comfortable month in Three River Junction, Wyoming, with an average temperature varying between 61.2°F (16.2°C) and 37.2°F (2.9°C). The arrival of September indicates a decrease in the average high-temperature, moving from an agreeable 70.7°F (21.5°C) in August to an enjoyable 61.2°F (16.2°C). Weather in September »Weather in October
October, like September, is another chilly autumn month in Three River Junction, Wyoming, with an average temperature fluctuating between 25°F (-3.9°C) and 43°F (6.1°C). As Three River Junction transitions into October, the average high-temperature shows a marked reduction, decreasing from an enjoyable 61.2°F (16.2°C) in September to a frosty 43°F (6.1°C). Weather in October »Weather in November
The last month of the autumn, November, is another freezing cold month in Three River Junction, Wyoming, with an average temperature varying between 13.5°F (-10.3°C) and 29.1°F (-1.6°C). The shift from October to November corresponds with a decrease in the average high-temperature, down to a subzero cold 29.1°F (-1.6°C) from a chilly 43°F (6.1°C). Weather in November »Weather in December
The first month of the winter, December, is also a subzero cold month in Three River Junction, Wyoming, with an average temperature varying between 19.4°F (-7°C) and 3.9°F (-15.6°C). The coldest period is December, when temperatures fluctuate between an average high of 19.4°F (-7°C) and a low of 3.9°F (-15.6°C). Weather in December »Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature
Three River Junction, WY
The warmest month (with the highest average high temperature) is July (72.1°F).
The month with the lowest average high temperature is December (19.4°F).
The month with the highest average low temperature is July (43.7°F).
The coldest month (with the lowest average low temperature) is December (3.9°F).
Average pressure
Three River Junction, WY
- Average pressure in January:
30.24"Hg - Average pressure in February:
30.14"Hg - Average pressure in March:
30.05"Hg - Average pressure in April:
29.97"Hg - Average pressure in May:
29.94"Hg - Average pressure in June:
29.92"Hg
- Average pressure in July:
29.98"Hg - Average pressure in August:
29.98"Hg - Average pressure in September:
29.99"Hg - Average pressure in October:
30.06"Hg - Average pressure in November:
30.15"Hg - Average pressure in December:
30.22"Hg
The month with the highest atmospheric pressure is January (30.24"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).
Average wind speed
Three River Junction, WY
- Average wind speed in January:
6.8mph - Average wind speed in February:
7.4mph - Average wind speed in March:
7.1mph - Average wind speed in April:
6.6mph - Average wind speed in May:
6.3mph - Average wind speed in June:
7.4mph
- Average wind speed in July:
6.8mph - Average wind speed in August:
6.3mph - Average wind speed in September:
6.6mph - Average wind speed in October:
6.5mph - Average wind speed in November:
6.7mph - Average wind speed in December:
6.6mph
The windiest months (with the highest average wind speed) are February and June (7.4mph).
The calmest months (with the lowest average wind speed) are May and August (6.3mph).
Average humidity
Three River Junction, WY
The month with the highest relative humidity is February (94%).
The months with the lowest relative humidity are July and August (50%).
Average rainfall
Three River Junction, WY
- Average rainfall in January:
2.17" - Average rainfall in February:
2.64" - Average rainfall in March:
2.6" - Average rainfall in April:
2.72" - Average rainfall in May:
3.03" - Average rainfall in June:
2.17"
- Average rainfall in July:
0.94" - Average rainfall in August:
1.14" - Average rainfall in September:
1.57" - Average rainfall in October:
1.54" - Average rainfall in November:
1.89" - Average rainfall in December:
2.01"
The wettest month (with the highest rainfall) is May (3.03").
The driest month (with the least rainfall) is July (0.94").
Average rainfall days
Three River Junction, WY
- Average rainfall days in January:
2.2 days - Average rainfall days in February:
2.6 days - Average rainfall days in March:
6 days - Average rainfall days in April:
7.6 days - Average rainfall days in May:
15.5 days - Average rainfall days in June:
15.4 days
- Average rainfall days in July:
11.8 days - Average rainfall days in August:
11.9 days - Average rainfall days in September:
8.5 days - Average rainfall days in October:
6.5 days - Average rainfall days in November:
3.1 days - Average rainfall days in December:
3.5 days
The month with the highest number of rainy days is May (15.5 days).
The month with the least rainy days is January (2.2 days).
Average snowfall
Three River Junction, WY
- Average snowfall in January:
16.57" - Average snowfall in February:
17.17" - Average snowfall in March:
19.53" - Average snowfall in April:
19.69" - Average snowfall in May:
13.94" - Average snowfall in June:
3.15"
- Average snowfall in July:
0.08" - Average snowfall in August:
0.08" - Average snowfall in September:
4.49" - Average snowfall in October:
10.2" - Average snowfall in November:
14.96" - Average snowfall in December:
15.71"
The month with the highest snowfall is April (19.69").
The months with the least snowfall are July and August (0.08").
Average snowfall days
Three River Junction, WY
- Average snowfall days in January:
22.8 days - Average snowfall days in February:
22.8 days - Average snowfall days in March:
25.3 days - Average snowfall days in April:
23.1 days - Average snowfall days in May:
14.8 days - Average snowfall days in June:
4.9 days
- Average snowfall days in July:
0.3 days - Average snowfall days in August:
0.6 days - Average snowfall days in September:
3.9 days - Average snowfall days in October:
14.4 days - Average snowfall days in November:
19.5 days - Average snowfall days in December:
24.4 days
The month with the highest number of snowfall days is March (25.3 days).
The month with the least snowfall days is July (0.3 days).
Average daylight / Average sunshine
Three River Junction, 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 6min - 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:
3h and 24min - Average sunshine in February:
3h and 18min - Average sunshine in March:
4h and 42min - Average sunshine in April:
6h and 54min - Average sunshine in May:
9h and 24min - Average sunshine in June:
10h and 48min
- Average sunshine in July:
11h and 48min - Average sunshine in August:
11h and 24min - Average sunshine in September:
9h and 54min - Average sunshine in October:
6h and 12min - Average sunshine in November:
4h and 42min - Average sunshine in December:
3h and 18min
The month with the most sunshine is July (Average sunshine: 11h and 48min).
The months with the least sunshine are February and December (Average sunshine: 3h and 18min).
Average sunshine days
Three River Junction, WY
- Average sunshine days in January:
9 days - Average sunshine days in February:
5.6 days - Average sunshine days in March:
5.5 days - Average sunshine days in April:
4.5 days - Average sunshine days in May:
5.2 days - Average sunshine days in June:
9.3 days
- Average sunshine days in July:
14.7 days - Average sunshine days in August:
14.9 days - Average sunshine days in September:
16 days - Average sunshine days in October:
14 days - Average sunshine days in November:
10.5 days - Average sunshine days in December:
7.1 days
The month with the most sunshine days is September (16 days).
The month with the least sunshine days is April (4.5 days).
Average UV index
Three River Junction, WY
The month with the highest UV index is July (UV index 5).
The months with the lowest UV index are January, February, March, October, November and December (UV index 1).
Average cloud cover
Three River Junction, WY
The month with the most cloud cover is February (Cloud cover 74).
The month with the least cloud cover is July (Cloud cover 15).
Average visibility
Three River Junction, WY
The months with the highest visibility are June, July, August and September (6mi).
The months with the lowest visibility are January, February and December (3mi).





