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
An upsurge in temperatures occurs as April gives way to May, with average highs shifting from a chilly 49.6°F (9.8°C) to a moderate 60.4°F (15.8°C). The average temperature during May nights in Fairfield is registered at a wintry 41.7°F (5.4°C).Humidity
In Fairfield, the average relative humidity in May is 58%.Rainfall
In May, the rain falls for 11.3 days. Throughout May, 1.61" (41mm) of precipitation is accumulated. Throughout the year, there are 73.3 rainfall days, and 9.17" (233mm) of precipitation is accumulated.Snowfall
Months with snowfall in Fairfield, Montana, are January through May, September through December. May is the last month it regularly snows in Fairfield. During 1.1 snowfall days, in May, Fairfield aggregates 1.26" (32mm) of snow. Throughout the year, in Fairfield, there are 50.3 snowfall days, and 21.26" (540mm) of snow is accumulated.Daylight
In Fairfield, the average length of the day in May is 15h and 10min.On the first day of May, sunrise is at 6:09 am and sunset at 8:40 pm. On the last day of the month, sunrise is at 5:34 am and sunset at 9:17 pm MDT.
Sunshine
The average sunshine in May is 10.3h.UV index
The average daily maximum UV index in May is 4. A UV Index of 3 to 5 symbolizes a moderate threat to health from exposure to the Sun's UV radiation for the ordinary person.Note: A typical high UV index of 4 in May suggests the following recommendations:
Be careful. Light complexion individuals might get burns in fewer than 30 minutes. The Sun is at its harshest during midday; protect yourself by staying in shaded areas and minimizing exposure. Employ a wide-brim hat for potent defense against up to 50% of UV rays. Stay alert! Snow's reflective properties can almost double the UV radiation from the Sun.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the usual temperature for Fairfield in May?
What is the average humidity in May in Fairfield?
How many days does it rain in May in Fairfield?
What is the last month it snows in Fairfield?
What is the average length of the day in May in Fairfield?
What time are sunrise and sunset in May in Fairfield?
How many hours of sunshine does Fairfield have in May?
What is the UV index reading in May in Fairfield?
Average temperature in May
Fairfield, MT
- Average high temperature in May: 60.4°F
The warmest month (with the highest average high temperature) is July (79.7°F).
The month with the lowest average high temperature is December (28.8°F).
- Average low temperature in May: 41.7°F
The month with the highest average low temperature is August (55.9°F).
The coldest month (with the lowest average low temperature) is December (16.2°F).
Average pressure in May
Fairfield, MT
- Average pressure in May: 29.94"Hg
The month with the highest atmospheric pressure is January (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.88"Hg).
Average wind speed in May
Fairfield, MT
- Average wind speed in May: 9mph
The windiest month (with the highest average wind speed) is January (11.2mph).
The calmest months (with the lowest average wind speed) are July and August (8mph).
Average humidity in May
Fairfield, MT
- Average humidity in May: 58%
The month with the highest relative humidity is January (76%).
The month with the lowest relative humidity is August (42%).
Average rainfall in May
Fairfield, MT
- Average rainfall in May: 1.61"
The wettest month (with the highest rainfall) is June (1.93").
The driest month (with the least rainfall) is December (0.35").
Average rainfall days in May
Fairfield, MT
- Average rainfall days in May: 11.3 days
The month with the highest number of rainy days is May (11.3 days).
The month with the least rainy days is November (2.7 days).
Average snowfall in May
Fairfield, MT
- Average snowfall in May: 1.26"
The month with the highest snowfall is February (4.17").
The months with the least snowfall are June, July and August (0").
Average snowfall days in May
Fairfield, MT
- Average snowfall days in May: 1.1 days
The month with the highest number of snowfall days is February (11.3 days).
The months with the least snowfall days are July and August (0 days).
Average daylight in May /
Average sunshine in May
Fairfield, 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: 10h and 2min
The month with the most sunshine is July (Average sunshine: 12h and 6min).
The month with the least sunshine is December (Average sunshine: 5h and 48min).
Average sunshine days in May
Fairfield, MT
- Average sunshine days in May: 16.8 days
The month with the most sunshine days is October (23.2 days).
The month with the least sunshine days is February (15.8 days).
Average UV index in May
Fairfield, 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, October, November and December (UV index 2).
Average cloud cover in May
Fairfield, MT
- Average cloud cover in May: 33
The month with the most cloud cover is February (Cloud cover 41).
The month with the least cloud cover is July (Cloud cover 14).
Average visibility in May
Fairfield, 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).
Fairfield, Montana, USA
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