Climate and monthly weather forecastBoyes, MT
Climate and monthly weather forecast
Weather in January
January, like December, is another subzero cold winter month in Boyes, Montana, with an average temperature fluctuating between 30.7°F (-0.7°C) and 17.6°F (-8°C). With the onset of January, the average high-temperature stands at a still subzero cold 30.7°F (-0.7°C), closely aligned with December's 30.4°F (-0.9°C). Weather in January »Weather in February
February, the last month of the winter in Boyes, is also a subzero cold month, with an average temperature varying between 31.3°F (-0.4°C) and 17.1°F (-8.3°C). Boyes's weather in February indicates an average high-temperature of a still subzero cold 31.3°F (-0.4°C), nearly consistent with the 30.7°F (-0.7°C) of January. Weather in February »Weather in March
March, the first month of the spring in Boyes, is a chilly month, with an average temperature varying between 27.9°F (-2.3°C) and 44.2°F (6.8°C). March marks a rise in the average high-temperature, moving from February's subzero cold 31.3°F (-0.4°C) to a frosty 44.2°F (6.8°C). Weather in March »Weather in April
April in Boyes, Montana, is a fresh spring month, with an average temperature fluctuating between 52.9°F (11.6°C) and 34.9°F (1.6°C). The embrace of April brings a minor uplift in the average high-temperature, shifting from a chilly 44.2°F (6.8°C) in March to a fresh 52.9°F (11.6°C). Weather in April »Weather in May
May, the last month of the spring in Boyes, is a refreshing month, with an average temperature varying between 44.6°F (7°C) and 63.5°F (17.5°C). May indicates a change in the average high-temperature, moving up from a fresh 52.9°F (11.6°C) in April to a refreshing 63.5°F (17.5°C). Weather in May »Weather in June
June, the first month of the summer in Boyes, is a moderately hot month, with an average temperature varying between 55.2°F (12.9°C) and 76.3°F (24.6°C). The commencement of June sees a shift in the average high-temperature, moving from an enjoyable 63.5°F (17.5°C) in May to a moderately hot 76.3°F (24.6°C). Weather in June »Weather in July
July, the same as June, is a moderately hot summer month in Boyes, Montana, with an average temperature fluctuating between 85.8°F (29.9°C) and 63°F (17.2°C). July, on average, is the warmest month, registering a high temperature of 85.8°F (29.9°C) and a low of 63°F (17.2°C). July's average heat index is computed to be a tropical 87.8°F (31°C). Weather in July »Weather in August
The last month of the summer, August, is another warm month in Boyes, Montana, with an average temperature fluctuating between 61.5°F (16.4°C) and 83.1°F (28.4°C). As Boyes transitions into August, the average high-temperature stands at a still warm 83.1°F (28.4°C), offering little variation from the preceding month. Weather in August »Weather in September
September, the first month of the autumn in Boyes, is also a moderately hot month, with an average temperature fluctuating between 53.6°F (12°C) and 73.9°F (23.3°C). Boyes's September weather features a mild decline in high-temperatures, reducing from a moderately hot 83.1°F (28.4°C) in August to a still warm 73.9°F (23.3°C). Weather in September »Weather in October
October, like September, is another mild autumn month in Boyes, Montana, with an average temperature ranging between max 55.9°F (13.3°C) and min 39.4°F (4.1°C). As Boyes welcomes October, the average high-temperature witnesses a distinct drop, moving from a warm 73.9°F (23.3°C) in September to a moderate 55.9°F (13.3°C). Weather in October »Weather in November
The last month of the autumn, November, is also a frosty month in Boyes, Montana, with temperature in the range of an average high of 43.9°F (6.6°C) and an average low of 28.9°F (-1.7°C). A moderate decline in the average high-temperature is seen during November, decreasing from a mild 55.9°F (13.3°C) in October to a frosty 43.9°F (6.6°C). Weather in November »Weather in December
The first month of the winter, December, is still a freezing cold month in Boyes, Montana, with an average temperature varying between 30.4°F (-0.9°C) and 18.1°F (-7.7°C). Temperature records mark December as the coldest month, with highs averaging 30.4°F (-0.9°C) and lows at 18.1°F (-7.7°C). Weather in December »Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature
Boyes, MT
The warmest month (with the highest average high temperature) is July (85.8°F).
The month with the lowest average high temperature is December (30.4°F).
The month with the highest average low temperature is July (63°F).
The coldest month (with the lowest average low temperature) is February (17.1°F).
Average pressure
Boyes, MT
- Average pressure in January:
30.14"Hg - Average pressure in February:
30.13"Hg - Average pressure in March:
30.01"Hg - Average pressure in April:
29.93"Hg - Average pressure in May:
29.91"Hg - Average pressure in June:
29.84"Hg
- Average pressure in July:
29.89"Hg - Average pressure in August:
29.89"Hg - Average pressure in September:
29.93"Hg - Average pressure in October:
29.98"Hg - Average pressure in November:
30.05"Hg - Average pressure in December:
30.13"Hg
The month with the highest atmospheric pressure is January (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.84"Hg).
Average wind speed
Boyes, MT
- Average wind speed in January:
10.4mph - Average wind speed in February:
9.6mph - Average wind speed in March:
9.8mph - Average wind speed in April:
10.2mph - Average wind speed in May:
9.7mph - Average wind speed in June:
9.4mph
- Average wind speed in July:
8.4mph - Average wind speed in August:
8.3mph - Average wind speed in September:
9.1mph - Average wind speed in October:
10.4mph - Average wind speed in November:
9.8mph - Average wind speed in December:
10.1mph
The windiest months (with the highest average wind speed) are January and October (10.4mph).
The calmest month (with the lowest average wind speed) is August (8.3mph).
Average humidity
Boyes, MT
The month with the highest relative humidity is January (80%).
The month with the lowest relative humidity is August (47%).
Average rainfall
Boyes, MT
- Average rainfall in January:
0.43" - Average rainfall in February:
0.47" - Average rainfall in March:
0.91" - Average rainfall in April:
1.57" - Average rainfall in May:
2.05" - Average rainfall in June:
1.5"
- Average rainfall in July:
1.57" - Average rainfall in August:
1.34" - Average rainfall in September:
0.75" - Average rainfall in October:
1.18" - Average rainfall in November:
0.47" - Average rainfall in December:
0.59"
The wettest month (with the highest rainfall) is May (2.05").
The driest month (with the least rainfall) is January (0.43").
Average rainfall days
Boyes, MT
- Average rainfall days in January:
2.8 days - Average rainfall days in February:
3.5 days - Average rainfall days in March:
7.7 days - Average rainfall days in April:
12.3 days - Average rainfall days in May:
14.3 days - Average rainfall days in June:
12.7 days
- Average rainfall days in July:
11.8 days - Average rainfall days in August:
11.7 days - Average rainfall days in September:
7.9 days - Average rainfall days in October:
8.2 days - Average rainfall days in November:
3.6 days - Average rainfall days in December:
3.5 days
The month with the highest number of rainy days is May (14.3 days).
The month with the least rainy days is January (2.8 days).
Average snowfall
Boyes, MT
- Average snowfall in January:
2.32" - Average snowfall in February:
2.91" - Average snowfall in March:
3.66" - Average snowfall in April:
4.88" - Average snowfall in May:
1.77" - Average snowfall in June:
0"
The month with the highest snowfall is April (4.88").
The months with the least snowfall are June, July and August (0").
Average snowfall days
Boyes, MT
- Average snowfall days in January:
9 days - Average snowfall days in February:
10.3 days - Average snowfall days in March:
7.4 days - Average snowfall days in April:
5.1 days - Average snowfall days in May:
1.7 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:
0.1 days - Average snowfall days in October:
3.2 days - Average snowfall days in November:
5.9 days - Average snowfall days in December:
9.4 days
The month with the highest number of snowfall days is February (10.3 days).
The months with the least snowfall days are June, July and August (0 days).
Average daylight / Average sunshine
Boyes, MT
- Average daylight in January:
9h and 12min - Average daylight in February:
10h and 24min - Average daylight in March:
12h and 0min - Average daylight in April:
13h and 30min - Average daylight in May:
14h and 54min - Average daylight in June:
15h and 36min
- 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:
10h and 54min - Average daylight in November:
9h and 30min - Average daylight in December:
8h and 48min
The month with the longest days is June (Average daylight: 15h and 36min).
The month with the shortest days is December (Average daylight: 8h and 48min).
- Average sunshine in January:
5h and 42min - Average sunshine in February:
5h and 30min - Average sunshine in March:
7h and 24min - Average sunshine in April:
9h and 18min - Average sunshine in May:
10h and 6min - Average sunshine in June:
11h and 18min
- Average sunshine in July:
11h and 48min - Average sunshine in August:
11h and 54min - Average sunshine in September:
10h and 30min - Average sunshine in October:
6h and 54min - Average sunshine in November:
6h and 24min - Average sunshine in December:
5h and 48min
The month with the most sunshine is August (Average sunshine: 11h and 54min).
The month with the least sunshine is February (Average sunshine: 5h and 30min).
Average sunshine days
Boyes, MT
- Average sunshine days in January:
19.1 days - Average sunshine days in February:
16 days - Average sunshine days in March:
17.2 days - Average sunshine days in April:
12.6 days - Average sunshine days in May:
12.8 days - Average sunshine days in June:
14.4 days
- Average sunshine days in July:
14.2 days - Average sunshine days in August:
14.8 days - Average sunshine days in September:
19.4 days - Average sunshine days in October:
19.2 days - Average sunshine days in November:
21.3 days - Average sunshine days in December:
19.5 days
The month with the most sunshine days is November (21.3 days).
The month with the least sunshine days is April (12.6 days).
Average UV index
Boyes, MT
The months with the highest UV index are June, July and August (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover
Boyes, MT
The month with the most cloud cover is February (Cloud cover 42).
The month with the least cloud cover is August (Cloud cover 15).
Average visibility
Boyes, MT
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).





