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
As April transitions into May, Saint Regis sees a rise in the average high-temperature, moving from a frosty 47.1°F (8.4°C) to a moderate 60.1°F (15.6°C). Saint Regis documents a marked decrease from day to night, with an average low of 34.3°F (1.3°C) throughout May.Humidity
In Saint Regis, Montana, the average relative humidity in May is 71%.Rainfall
In Saint Regis, during May, the rain falls for 14.4 days and regularly aggregates up to 1.57" (40mm) of precipitation. Throughout the year, in Saint Regis, Montana, there are 152.1 rainfall days, and 22.09" (561mm) of precipitation is accumulated.Snowfall
Months with snowfall in Saint Regis are January through May, September through December. May is the last month it regularly snows in Saint Regis. During 0.4 snowfall days, in May, Saint Regis aggregates 0.12" (3mm) of snow. Throughout the year, in Saint Regis, there are 90.2 snowfall days, and 58.15" (1477mm) of snow is accumulated.Daylight
In May, the average length of the day in Saint Regis is 15h and 7min.On the first day of May, sunrise is at 6:22 am and sunset at 8:52 pm. On the last day of the month, sunrise is at 5:47 am and sunset at 9:28 pm MDT.
Sunshine
The average sunshine in May is 9.8h.UV index
In May, the average daily maximum UV index is 4. A UV Index of 3 to 5 symbolizes a medium health hazard from unsafe exposure to UV radiation for average individuals.Note: The daily maximum UV index of 4 in May interprets into the following advice:
Be vigilant - Preventing sunburn is recommended. The mid-day Sun emits the most powerful UV radiation, so seek shade and minimize exposure. Loose clothes with a tight weave are optimal for safeguarding yourself against the Sun's rays. Take heed! The reflection of snow can intensify the Sun's UV radiation nearly double.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the usual temperature for Saint Regis in May?
What is the average humidity in May in Saint Regis?
How many days does it rain in May in Saint Regis?
What is the last month it snows in Saint Regis?
What is the average length of the day in May in Saint Regis?
When is the sunrise / sunset in May in Saint Regis?
How many hours of sunshine does Saint Regis have in May?
What is the UV index reading in May in Saint Regis?
Average temperature in May
Saint Regis, MT
- Average high temperature in May: 60.1°F
The warmest months (with the highest average high temperature) are July and August (78.8°F).
The month with the lowest average high temperature is December (28.9°F).
- Average low temperature in May: 34.3°F
The month with the highest average low temperature is August (45.7°F).
The coldest month (with the lowest average low temperature) is December (16.2°F).
Average pressure in May
Saint Regis, MT
- Average pressure in May: 29.96"Hg
The month with the highest atmospheric pressure is January (30.19"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed in May
Saint Regis, MT
- Average wind speed in May: 4.4mph
The windiest month (with the highest average wind speed) is April (4.9mph).
The calmest month (with the lowest average wind speed) is December (4mph).
Average humidity in May
Saint Regis, MT
- Average humidity in May: 71%
The month with the highest relative humidity is January (93%).
The months with the lowest relative humidity are July and August (53%).
Average rainfall in May
Saint Regis, MT
- Average rainfall in May: 1.57"
The wettest month (with the highest rainfall) is January (3.11").
The driest month (with the least rainfall) is August (0.39").
Average rainfall days in May
Saint Regis, MT
- Average rainfall days in May: 14.4 days
The month with the highest number of rainy days is March (19.9 days).
The month with the least rainy days is August (5.9 days).
Average snowfall in May
Saint Regis, MT
- Average snowfall in May: 0.12"
The month with the highest snowfall is February (15.12").
The months with the least snowfall are June, July and August (0").
Average snowfall days in May
Saint Regis, MT
- Average snowfall days in May: 0.4 days
The month with the highest number of snowfall days is December (20.4 days).
The months with the least snowfall days are June, July and August (0 days).
Average daylight in May /
Average sunshine in May
Saint Regis, MT
- Average daylight in May: 15h and 1min
The month with the longest days is June (Average daylight: 15h and 54min).
The month with the shortest days is December (Average daylight: 8h and 30min).
- Average sunshine in May: 9h and 5min
The month with the most sunshine is July (Average sunshine: 11h and 48min).
The month with the least sunshine is January (Average sunshine: 3h and 30min).
Average sunshine days in May
Saint Regis, MT
- Average sunshine days in May: 14.2 days
The months with the most sunshine days are July and August (23.3 days).
The month with the least sunshine days is March (5.8 days).
Average UV index in May
Saint Regis, MT
- Average UV index in May: 4
The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 1).
Average cloud cover in May
Saint Regis, MT
- Average cloud cover in May: 38
The month with the most cloud cover is February (Cloud cover 66).
The months with the least cloud cover are July and August (Cloud cover 15).
Average visibility in May
Saint Regis, MT
- Average visibility in May: 5mi
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).
Saint Regis, Montana, USA
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