Climate and monthly weather forecastTroy, ID
Climate and monthly weather forecast
Weather in January
January, like December, in Troy, Idaho, is another cold winter month, with an average temperature ranging between min 25.5°F (-3.6°C) and max 35.4°F (1.9°C). January's arrival registers an average high-temperature of a still icy 35.4°F (1.9°C), closely aligning with the temperature of the previous month. Weather in January »Weather in February
The last month of the winter, February, is also an icy month in Troy, Idaho, with an average temperature varying between 38.7°F (3.7°C) and 27.9°F (-2.3°C). The beginning of February records an average high-temperature of a still icy 38.7°F (3.7°C), marking a negligible difference from January's 35.4°F (1.9°C). Weather in February »Weather in March
March, the first month of the spring in Troy, is a chilly month, with temperature in the range of an average high of 46.8°F (8.2°C) and an average low of 31.8°F (-0.1°C). With the beginning of March, Troy's average high-temperature sees a minor increase, transitioning from an icy 38.7°F (3.7°C) in February to a frosty 46.8°F (8.2°C). Weather in March »Weather in April
April is a cool spring month in Troy, Idaho, with temperature in the range of an average low of 36°F (2.2°C) and an average high of 54.5°F (12.5°C). Troy's April weather indicates a minor increase in high-temperatures, edging from March's chilly 46.8°F (8.2°C) to a fresh 54.5°F (12.5°C). Weather in April »Weather in May
May, the last month of the spring in Troy, is an enjoyable month, with temperature in the range of an average high of 63.9°F (17.7°C) and an average low of 41.5°F (5.3°C). May brings a rise in the average high-temperature, transitioning from April's cool 54.5°F (12.5°C) to a refreshing 63.9°F (17.7°C). Weather in May »Weather in June
The first month of the summer, June, is a pleasant month in Troy, Idaho, with an average temperature ranging between max 70°F (21.1°C) and min 46.6°F (8.1°C). The shift into June is accompanied by a modest temperature increase, with the average high-temperature edging up from an enjoyable 63.9°F (17.7°C) in May to a pleasant 70°F (21.1°C). Weather in June »Weather in July
July is a moderately hot summer month in Troy, Idaho, with temperature in the range of an average low of 54.7°F (12.6°C) and an average high of 82.6°F (28.1°C). With the transition into July, Troy experiences an increase in average high-temperatures, moving up from an agreeable 70°F (21.1°C) in June to a warm 82.6°F (28.1°C). Weather in July »Weather in August
The last month of the summer, August, is another warm month in Troy, Idaho, with an average temperature ranging between min 58.1°F (14.5°C) and max 83.7°F (28.7°C). August, on average, is the warmest month, registering a high temperature of 83.7°F (28.7°C) and a low of 58.1°F (14.5°C). The heat index value for August is appraised at 82.4°F (28°C). Weather in August »Weather in September
The first month of the autumn, September, is also a moderately hot month in Troy, Idaho, with temperature in the range of an average high of 73.4°F (23°C) and an average low of 51.4°F (10.8°C). The onset of September brings a small change in high-temperatures, falling from 83.7°F (28.7°C) in August to a still warm 73.4°F (23°C). Weather in September »Weather in October
October, the same as September, in Troy, Idaho, is another mild autumn month, with an average temperature fluctuating between 41.4°F (5.2°C) and 57.7°F (14.3°C). As Troy welcomes October, there is a noticeable shift in the average high-temperature, dropping from September's moderately hot 73.4°F (23°C) to a refreshing 57.7°F (14.3°C). Weather in October »Weather in November
November, the last month of the autumn in Troy, is also a frosty month, with an average temperature ranging between min 31.8°F (-0.1°C) and max 43.7°F (6.5°C). As Troy enters November, the average high-temperature decreases from the a refreshing 57.7°F (14.3°C) of October to a chilly 43.7°F (6.5°C). Weather in November »Weather in December
December, the first month of the winter in Troy, is still a cold month, with temperature in the range of an average high of 34°F (1.1°C) and an average low of 24.1°F (-4.4°C). December stands out as Troy's coldest month, with an average high-temperature of 34°F (1.1°C) and a low-temperature of 24.1°F (-4.4°C). Weather in December »Updated: Feb 12, 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
The most humid month is January, with an average relative humidity of 87%.
In Troy, during the entire year, the rain falls for 143.2 days and collects up to 20.51" (521mm) of precipitation.
January through May, September through December are months with snowfall in Troy.
January is the month with the most snowfall in Troy. Snow falls for 13.7 days and accumulates 12.56" (319mm) of snow.
In Troy, Idaho, during the entire year, snow falls for 60.2 days and aggregates up to 47.24" (1200mm) of snow.
The months with the least sunshine are January, February and December, with an average of 4.5h of sunshine.
February is the month with the lowest UV index, with an average maximum UV index of 1.
On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts, and the time zone changes from PST to PDT. Daylight Saving Time ends Sunday, November 3. 2024, at 2:00 am, and the time zone reverts from PDT to PST.
In Troy, Idaho, snow does not fall in June through August.
The month with the longest days in Troy is June, with an average of 15h and 48min of daylight.
The months with the least rainfall in Troy, Idaho, are July and August Rain falls for 5.9 days and accumulates 0.47" (12mm) of rain.
July is the month with the highest UV index in Troy, with an average maximum UV index of 6.
August, characterized by an average high temperature of 83.7°F (28.7°C) and a low temperature of 58.1°F (14.5°C), is generally the warmest month in Troy.
With an average relative humidity of 40%, August is the least humid month in Troy, Idaho.
August has the most sunshine of the year, with an average of 12h of sunshine.
Temperature records in Troy mark December as the coldest month, with highs averaging 34°F (1.1°C) and lows at 24.1°F (-4.4°C).
December is the month with the most rainfall in Troy. Rain falls for 11.6 days and accumulates 2.68" (68mm) of precipitation.
December has the shortest days of the year in Troy, with an average of 8h and 36min of daylight.
Average temperature
Troy, ID
The warmest month (with the highest average high temperature) is August (83.7°F).
The month with the lowest average high temperature is December (34°F).
The month with the highest average low temperature is August (58.1°F).
The coldest month (with the lowest average low temperature) is December (24.1°F).
Average pressure
Troy, ID
- Average pressure in January:
30.2"Hg - Average pressure in February:
30.11"Hg - Average pressure in March:
30.03"Hg - Average pressure in April:
30"Hg - Average pressure in May:
29.95"Hg - Average pressure in June:
29.92"Hg
- Average pressure in July:
29.93"Hg - Average pressure in August:
29.91"Hg - Average pressure in September:
29.96"Hg - Average pressure in October:
30.05"Hg - Average pressure in November:
30.11"Hg - Average pressure in December:
30.17"Hg
The month with the highest atmospheric pressure is January (30.2"Hg).
The month with the lowest atmospheric pressure is August (29.91"Hg).
Average wind speed
Troy, ID
- Average wind speed in January:
5.8mph - Average wind speed in February:
5.8mph - Average wind speed in March:
6.2mph - Average wind speed in April:
6.3mph - Average wind speed in May:
5.1mph - Average wind speed in June:
5.1mph
- Average wind speed in July:
4.8mph - Average wind speed in August:
4.8mph - Average wind speed in September:
4.8mph - Average wind speed in October:
5.3mph - Average wind speed in November:
5.8mph - Average wind speed in December:
5.6mph
The windiest month (with the highest average wind speed) is April (6.3mph).
The calmest months (with the lowest average wind speed) are July, August and September (4.8mph).
Average humidity
Troy, ID
The month with the highest relative humidity is January (87%).
The month with the lowest relative humidity is August (40%).
Average rainfall
Troy, ID
- Average rainfall in January:
2.52" - Average rainfall in February:
2.17" - Average rainfall in March:
2.28" - Average rainfall in April:
2.01" - Average rainfall in May:
2.28" - Average rainfall in June:
1.5"
- Average rainfall in July:
0.47" - Average rainfall in August:
0.47" - Average rainfall in September:
0.63" - Average rainfall in October:
1.61" - Average rainfall in November:
1.89" - Average rainfall in December:
2.68"
The wettest month (with the highest rainfall) is December (2.68").
The driest months (with the least rainfall) are July and August (0.47").
Average rainfall days
Troy, ID
- Average rainfall days in January:
10.9 days - Average rainfall days in February:
11.3 days - Average rainfall days in March:
16.6 days - Average rainfall days in April:
18.1 days - Average rainfall days in May:
16.2 days - Average rainfall days in June:
12.6 days
- Average rainfall days in July:
5.9 days - Average rainfall days in August:
5.9 days - Average rainfall days in September:
8.1 days - Average rainfall days in October:
12.5 days - Average rainfall days in November:
13.5 days - Average rainfall days in December:
11.6 days
The month with the highest number of rainy days is April (18.1 days).
The months with the least rainy days are July and August (5.9 days).
Average snowfall
Troy, ID
- Average snowfall in January:
12.56" - Average snowfall in February:
11.57" - Average snowfall in March:
6.14" - Average snowfall in April:
1.73" - Average snowfall in May:
0.08" - Average snowfall in June:
0"
The month with the highest snowfall is January (12.56").
The months with the least snowfall are June, July and August (0").
Average snowfall days
Troy, ID
- Average snowfall days in January:
13.7 days - Average snowfall days in February:
12.8 days - Average snowfall days in March:
8.1 days - Average snowfall days in April:
4.1 days - Average snowfall days in May:
0.3 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:
0.2 days - Average snowfall days in October:
0.8 days - Average snowfall days in November:
6.1 days - Average snowfall days in December:
14.1 days
The month with the highest number of snowfall days is December (14.1 days).
The months with the least snowfall days are June, July and August (0 days).
Average daylight / Average sunshine
Troy, ID
- Average daylight in January:
9h and 6min - Average daylight in February:
10h and 18min - Average daylight in March:
12h and 0min - Average daylight in April:
13h and 36min - Average daylight in May:
15h and 6min - Average daylight in June:
15h and 48min
- Average daylight in July:
15h and 24min - Average daylight in August:
14h and 6min - Average daylight in September:
12h and 30min - Average daylight in October:
10h and 54min - Average daylight in November:
9h and 24min - Average daylight in December:
8h and 36min
The month with the longest days is June (Average daylight: 15h and 48min).
The month with the shortest days is December (Average daylight: 8h and 36min).
- Average sunshine in January:
4h and 30min - Average sunshine in February:
4h and 30min - Average sunshine in March:
6h and 18min - Average sunshine in April:
9h and 0min - Average sunshine in May:
10h and 6min - Average sunshine in June:
10h and 30min
- Average sunshine in July:
11h and 48min - Average sunshine in August:
12h and 0min - Average sunshine in September:
10h and 18min - Average sunshine in October:
6h and 48min - Average sunshine in November:
5h and 36min - Average sunshine in December:
4h and 30min
The month with the most sunshine is August (Average sunshine: 12h and 0min).
The months with the least sunshine are January, February and December (Average sunshine: 4h and 30min).
Average sunshine days
Troy, ID
- Average sunshine days in January:
11.8 days - Average sunshine days in February:
9.2 days - Average sunshine days in March:
9.7 days - Average sunshine days in April:
9.3 days - Average sunshine days in May:
12.4 days - Average sunshine days in June:
15 days
- Average sunshine days in July:
23.3 days - Average sunshine days in August:
21.6 days - Average sunshine days in September:
20.1 days - Average sunshine days in October:
16.7 days - Average sunshine days in November:
11.8 days - Average sunshine days in December:
11.8 days
The month with the most sunshine days is July (23.3 days).
The month with the least sunshine days is February (9.2 days).
Average UV index
Troy, ID
The month with the highest UV index is July (UV index 6).
The month with the lowest UV index is February (UV index 1).
Average cloud cover
Troy, ID
The month with the most cloud cover is February (Cloud cover 54).
The months with the least cloud cover are July and August (Cloud cover 12).
Average visibility
Troy, ID
The months with the highest visibility are March, April, May, June, July, August, September, October and November (6mi).
The months with the lowest visibility are January and December (4mi).
