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
May indicates a change in the average high-temperature, moving up from a chilly 45°F (7.2°C) in April to a mild 57.4°F (14.1°C). Seeley Lake reports a steady low-temperature average of 32.2°F (0.1°C) throughout May, revealing a large deviation from the daytime high.Humidity
In May, the average relative humidity is 71%.Rainfall
In Seeley Lake, during May, the rain falls for 16.9 days and regularly aggregates up to 1.5" (38mm) of precipitation. Throughout the year, there are 135.1 rainfall days, and 17.6" (447mm) of precipitation is accumulated.Snowfall
Months with snowfall are January through June, September through December. In Seeley Lake, in May, during 3.4 snowfall days, 0.98" (25mm) of snow is typically accumulated. In Seeley Lake, during the entire year, snow falls for 119.6 days and aggregates up to 67.99" (1727mm) of snow.Daylight
In May, the average length of the day is 15h and 7min.On the first day of the month, sunrise is at 6:16 am and sunset at 8:45 pm. On the last day of May, sunrise is at 5:41 am and sunset at 9:21 pm MDT.
Sunshine
In May, the average sunshine is 10.1h.UV index
In Seeley Lake, the average daily maximum UV index in May is 4. A UV Index reading of 3 to 5 represents a moderate health risk from unprotected exposure to Sun's UV rays for the average person.Note: In May, the maximum UV index of 4 transforms into these recommendations:
Prioritize safety - Recommendations to avert sunburn are shared. Solar radiation peaks around mid-day, so it's wise to limit exposure to the Sun at this time. Sun protection is enhanced with clothing that boasts a tight weave yet offers a loose fit. Take precaution! The reflection from snow can almost double the UV radiation of the Sun.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the temperature in May?
What is the average humidity in May?
How much does it rain in May?
How much does it snow in May?
How many hours of daylight does Seeley Lake have in May?
When is the sunrise / sunset in May?
How many hours of sunshine does Seeley Lake have in May?
What is the UV index reading in May?
Average temperature in May
Seeley Lake, MT
- Average high temperature in May: 57.4°F
The warmest month (with the highest average high temperature) is July (77.4°F).
The month with the lowest average high temperature is December (25.7°F).
- Average low temperature in May: 32.2°F
The month with the highest average low temperature is August (44.2°F).
The coldest month (with the lowest average low temperature) is December (12°F).
Average pressure in May
Seeley Lake, 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
Seeley Lake, MT
- Average wind speed in May: 4.8mph
The windiest month (with the highest average wind speed) is April (5.2mph).
The calmest months (with the lowest average wind speed) are August and December (4.3mph).
Average humidity in May
Seeley Lake, MT
- Average humidity in May: 71%
The month with the highest relative humidity is January (92%).
The months with the lowest relative humidity are July and August (53%).
Average rainfall in May
Seeley Lake, MT
- Average rainfall in May: 1.5"
The wettest month (with the highest rainfall) is April (2.05").
The driest month (with the least rainfall) is July (0.59").
Average rainfall days in May
Seeley Lake, MT
- Average rainfall days in May: 16.9 days
The month with the highest number of rainy days is May (16.9 days).
The month with the least rainy days is August (6 days).
Average snowfall in May
Seeley Lake, MT
- Average snowfall in May: 0.98"
The month with the highest snowfall is January (14.17").
The months with the least snowfall are July and August (0").
Average snowfall days in May
Seeley Lake, MT
- Average snowfall days in May: 3.4 days
The month with the highest number of snowfall days is January (21.3 days).
The months with the least snowfall days are July and August (0 days).
Average daylight in May /
Average sunshine in May
Seeley Lake, 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 36min).
- Average sunshine in May: 10h and 1min
The month with the most sunshine is July (Average sunshine: 11h and 48min).
The month with the least sunshine is January (Average sunshine: 4h and 30min).
Average sunshine days in May
Seeley Lake, MT
- Average sunshine days in May: 9.7 days
The month with the most sunshine days is August (21.2 days).
The month with the least sunshine days is February (6 days).
Average UV index in May
Seeley Lake, MT
- Average UV index in May: 4
The month with the highest UV index is 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
Seeley Lake, MT
- Average cloud cover in May: 36
The months with the most cloud cover are January and February (Cloud cover 57).
The month with the least cloud cover is July (Cloud cover 14).
Average visibility in May
Seeley Lake, MT
- Average visibility in May: 6mi
The months with the highest visibility are May, June, July, August, September and October (6mi).
The month with the lowest visibility is January (3mi).
Seeley Lake, Montana, USA
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