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
The arrival of May brings an increase in high-temperatures, moving from a cool 51.3°F (10.7°C) in April to an enjoyable 61°F (16.1°C). Throughout May, the average low-temperature in Fishtail, Montana, dips to a cold 41.4°F (5.2°C).Humidity
In Fishtail, the average relative humidity in May is 62%.Rainfall
May is the month with the most rainfall in Fishtail. Rain falls for 16.3 days and accumulates 2.09" (53mm) of precipitation.Snowfall
January through June, September through December are months with snowfall in Fishtail. In Fishtail, during May, snow falls for 2.4 days and regularly aggregates up to 2.83" (72mm) of snow. Throughout the year, there are 61.5 snowfall days, and 41.77" (1061mm) of snow is accumulated.Daylight
In May, the average length of the day is 14h and 55min.On the first day of the month, sunrise is at 6:04 am and sunset at 8:25 pm. On the last day of May, in Fishtail, Montana, sunrise is at 5:32 am and sunset at 8:58 pm MDT.
Sunshine
The average sunshine in May is 10.5h.UV index
In May, the average daily maximum UV index in Fishtail is 4. A UV Index reading of 3 to 5 represents a medium vulnerability from unsafe exposure to UV radiation for the ordinary person.Note: The maximum daily UV index of 4 during May translates into the following directions:
Be mindful. Those with pale skin might receive burns in fewer than 30 minutes. The Sun's harshest UV rays are around midday; it's wise to seek shade and limit time outdoors. A hat with a generous brim can prevent nearly 50% of UV rays from reaching your eyes. Keep in mind! Snow's reflective quality can nearly double the intensity of the Sun's UV radiation.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are the temperatures in Fishtail in May?
What is the average humidity in May in Fishtail?
What is the rainiest month in Fishtail?
How much does it rain in Fishtail in May?
How much does it snow in Fishtail in May?
What is the average length of the day in May in Fishtail?
When are sunrise and sunset in May in Fishtail?
How many hours of sunshine does Fishtail have in May?
What is the UV index intensity in May in Fishtail?
Average temperature in May
Fishtail, MT
- Average high temperature in May: 61°F
The warmest month (with the highest average high temperature) is July (82.9°F).
The month with the lowest average high temperature is December (30.7°F).
- Average low temperature in May: 41.4°F
The months with the highest average low temperature are July and August (57.2°F).
The coldest month (with the lowest average low temperature) is February (16.7°F).
Average pressure in May
Fishtail, MT
- Average pressure in May: 29.93"Hg
The months with the highest atmospheric pressure are January and December (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.88"Hg).
Average wind speed in May
Fishtail, MT
- Average wind speed in May: 7.1mph
The windiest month (with the highest average wind speed) is January (8.7mph).
The calmest month (with the lowest average wind speed) is August (6mph).
Average humidity in May
Fishtail, MT
- Average humidity in May: 62%
The month with the highest relative humidity is January (76%).
The month with the lowest relative humidity is August (41%).
Average rainfall in May
Fishtail, MT
- Average rainfall in May: 2.09"
The wettest month (with the highest rainfall) is May (2.09").
The driest month (with the least rainfall) is January (0.51").
Average rainfall days in May
Fishtail, MT
- Average rainfall days in May: 16.3 days
The month with the highest number of rainy days is May (16.3 days).
The month with the least rainy days is February (4 days).
Average snowfall in May
Fishtail, MT
- Average snowfall in May: 2.83"
The month with the highest snowfall is February (6.81").
The months with the least snowfall are July and August (0").
Average snowfall days in May
Fishtail, MT
- Average snowfall days in May: 2.4 days
The month with the highest number of snowfall days is February (10.8 days).
The months with the least snowfall days are July and August (0 days).
Average daylight in May /
Average sunshine in May
Fishtail, MT
- Average daylight in May: 14h and 5min
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 May: 10h and 3min
The month with the most sunshine is July (Average sunshine: 11h and 54min).
The month with the least sunshine is February (Average sunshine: 6h and 12min).
Average sunshine days in May
Fishtail, MT
- Average sunshine days in May: 10.5 days
The month with the most sunshine days is December (19.7 days).
The month with the least sunshine days is May (10.5 days).
Average UV index in May
Fishtail, 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, March, November and December (UV index 2).
Average cloud cover in May
Fishtail, MT
- Average cloud cover in May: 32
The month with the most cloud cover is February (Cloud cover 38).
The months with the least cloud cover are July and August (Cloud cover 15).
Average visibility in May
Fishtail, MT
- Average visibility in May: 6mi
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).
Fishtail, Montana, USA
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