Contents
- Weather in May
- Frequently asked questions
- Average temperature in May
- Average pressure in May
- Average wind speed in May
- Average humidity in May
- Average rainfall in May
- Average rainfall days in May
- Average snowfall in May
- Average snowfall days in May
- Average daylight in May
- Average sunshine in May
- Average sunshine days in May
- Average UV index in May
- Average cloud cover in May
- Average visibility in May
Weather in May
Temperature
Troy's May weather brings a rise in high-temperatures, moving from a frosty 46.2°F (7.9°C) in April to a moderate 59.5°F (15.3°C). Troy registers a substantial downturn from daytime peaks throughout May nights, with an average low-temperature of 36.1°F (2.3°C).Humidity
In Troy, Montana, the average relative humidity in May is 69%.Rainfall
In Troy, Montana, in May, it is raining for 15.8 days, with typically 1.73" (44mm) of accumulated precipitation. In Troy, during the entire year, the rain falls for 138.8 days and collects up to 18.15" (461mm) of precipitation.Snowfall
Months with snowfall in Troy are January through May, September through December. May is the last month it regularly snows in Troy. During 0.9 snowfall days, in May, Troy aggregates 0.2" (5mm) of snow. In Troy, during the entire year, snow falls for 91.8 days and aggregates up to 49.33" (1253mm) of snow.Daylight
The average length of the day in May in Troy is 15h and 16min.On the first day of May in Troy, sunrise is at 6:22 am and sunset at 8:58 pm. On the last day of the month, sunrise is at 5:46 am and sunset at 9:36 pm MDT.
Sunshine
In Troy, Montana, the average sunshine in May is 9.8h.UV index
The average daily maximum UV index in May in Troy is 4. A UV Index reading of 3 to 5 represents a moderate health risk from unprotected exposure to Sun's UV rays for ordinary individuals.Note: In May, the maximum UV index of 4 translates into these guidelines:
Prioritize safety - Suggestions to prevent sun damage are offered. Exposing oneself to the midday Sun can be harmful due to the strong UV radiation; limit your time outside. Boost your sun resistance with garments that are densely woven yet spacious. Be aware! The intensity of the Sun's UV radiation can be amplified nearly twice due to snow reflection.
Frequently asked questions
What is the usual temperature for Troy in May?
What is the average humidity in May in Troy?
How much does it rain in Troy in May?
What is the last month it snows in Troy?
What is the average length of the day in May in Troy?
What time are sunrise and sunset in May in Troy?
How many hours of sunshine does Troy have in May?
What is the UV index reading in May in Troy?
Average temperature in May
Troy, MT
- Average high temperature in May: 59.5°F
The warmest month (with the highest average high temperature) is August (77.5°F).
The month with the lowest average high temperature is December (27.1°F).
- Average low temperature in May: 36.1°F
The month with the highest average low temperature is August (47.3°F).
The coldest month (with the lowest average low temperature) is December (15.1°F).
Average pressure in May
Troy, MT
- Average pressure in May: 29.96"Hg
The month with the highest atmospheric pressure is January (30.18"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).
Average wind speed in May
Troy, MT
- Average wind speed in May: 4.3mph
The windiest months (with the highest average wind speed) are April and June (4.5mph).
The calmest month (with the lowest average wind speed) is December (3.5mph).
Average humidity in May
Troy, MT
- Average humidity in May: 69%
The month with the highest relative humidity is January (94%).
The month with the lowest relative humidity is August (53%).
Average rainfall in May
Troy, MT
- Average rainfall in May: 1.73"
The wettest month (with the highest rainfall) is December (2.24").
The driest month (with the least rainfall) is August (0.43").
Average rainfall days in May
Troy, MT
- Average rainfall days in May: 15.8 days
The month with the highest number of rainy days is April (17.5 days).
The month with the least rainy days is August (5.9 days).
Average snowfall in May
Troy, MT
- Average snowfall in May: 0.2"
The month with the highest snowfall is January (11.34").
The months with the least snowfall are June, July and August (0").
Average snowfall days in May
Troy, MT
- Average snowfall days in May: 0.9 days
The month with the highest number of snowfall days is December (20 days).
The months with the least snowfall days are June, July and August (0 days).
Average daylight in May /
Average sunshine in May
Troy, MT
- Average daylight in May: 15h and 2min
The month with the longest days is June (Average daylight: 16h and 0min).
The month with the shortest days is December (Average daylight: 8h and 24min).
- Average sunshine in May: 9h and 5min
The months with the most sunshine are July and August (Average sunshine: 11h and 36min).
The month with the least sunshine is January (Average sunshine: 3h and 0min).
Average sunshine days in May
Troy, MT
- Average sunshine days in May: 13.3 days
The month with the most sunshine days is August (22.8 days).
The month with the least sunshine days is February (7.4 days).
Average UV index in May
Troy, MT
- Average UV index in May: 4
The months with the highest UV index are June and July (UV index 5).
The months with the lowest UV index are January, February, November and December (UV index 1).
Average cloud cover in May
Troy, MT
- Average cloud cover in May: 37
The month with the most cloud cover is January (Cloud cover 70).
The month with the least cloud cover is August (Cloud cover 15).
Average visibility in May
Troy, MT
- Average visibility in May: 6mi
The months with the highest visibility are May, June, July, August and September (6mi).
The month with the lowest visibility is January (2mi).
Troy, Montana, USA
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