May weather forecastTattnall, MT
May
Weather in May
May, the last month of the spring in Tattnall, is an enjoyable month, with an average temperature ranging between min 46.9°F (8.3°C) and max 65.8°F (18.8°C).Temperature
Tattnall's weather in May presents a rise in the average high-temperature, moving from a fresh 53.1°F (11.7°C) in April to a comfortable 65.8°F (18.8°C). An average low-temperature of 46.9°F (8.3°C) is anticipated throughout the nights during May.Humidity
The average relative humidity in May is 52%.Rainfall
The month with the most rainfall is May, when the rain falls for 12.7 days and typically aggregates up to 1.73" (44mm) of precipitation.Snowfall
Months with snowfall are January through May, October through December. May is the last month it regularly snows. During 0.3 snowfall days, in May, Tattnall aggregates 0.31" (8mm) of snow. Throughout the year, in Tattnall, there are 56.9 snowfall days, and 17.95" (456mm) of snow is accumulated.Daylight
The average length of the day in May is 15h and 17min.On the first day of the month, sunrise is at 5:48 am and sunset at 8:25 pm. On the last day of May, sunrise is at 5:12 am and sunset at 9:03 pm MDT.
Sunshine
In Tattnall, the average sunshine in May is 10h.UV index
In May, the average daily maximum UV index is 5. A UV Index estimate of 3 to 5 represents a moderate threat to health from unsafe exposure to UV radiation for average individuals.Note: An average UV index of 5 in May transforms into this advice:
Stay alert. Light-skinned people could suffer burns in less than 30 minutes. Being exposed to the midday Sun can have harmful effects due to strong UV radiation; always take precautions. Boost your sun resistance with garments that are densely woven yet spacious. Mind this! Nearly twice the UV radiation from the Sun can be reflected by the snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in May
Tattnall, MT
- Average high temperature in May: 65.8°F
The warmest month (with the highest average high temperature) is July (84°F).
The month with the lowest average high temperature is February (24.4°F).
- Average low temperature in May: 46.9°F
The month with the highest average low temperature is July (63.1°F).
The coldest month (with the lowest average low temperature) is February (10°F).
Average pressure in May
Tattnall, MT
- Average pressure in May: 29.92"Hg
The month with the highest atmospheric pressure is February (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.83"Hg).
Average wind speed in May
Tattnall, MT
- Average wind speed in May: 10.6mph
The windiest month (with the highest average wind speed) is April (11.3mph).
The calmest month (with the lowest average wind speed) is February (8.3mph).
Average humidity in May
Tattnall, MT
- Average humidity in May: 52%
The month with the highest relative humidity is January (85%).
The month with the lowest relative humidity is August (41%).
Average rainfall in May
Tattnall, MT
- Average rainfall in May: 1.73"
The wettest month (with the highest rainfall) is May (1.73").
The driest month (with the least rainfall) is February (0.43").
Average rainfall days in May
Tattnall, MT
- Average rainfall days in May: 12.7 days
The month with the highest number of rainy days is May (12.7 days).
The month with the least rainy days is February (3.3 days).
Average snowfall in May
Tattnall, MT
- Average snowfall in May: 0.31"
The month with the highest snowfall is December (3.43").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in May
Tattnall, MT
- Average snowfall days in May: 0.3 days
The month with the highest number of snowfall days is January (12.3 days).
The months with the least snowfall days are June, July and August (0 days).
Average daylight in May /
Average sunshine in May
Tattnall, MT
- Average daylight in May: 15h and 18min
The month with the longest days is June (Average daylight: 16h and 6min).
The month with the shortest days is December (Average daylight: 8h and 24min).
- Average sunshine in May: 10h and 0min
The month with the most sunshine is July (Average sunshine: 11h and 42min).
The month with the least sunshine is February (Average sunshine: 4h and 36min).
Average sunshine days in May
Tattnall, MT
- Average sunshine days in May: 16.3 days
The month with the most sunshine days is October (21 days).
The month with the least sunshine days is April (15.4 days).
Average UV index in May
Tattnall, MT
- Average UV index in May: 5
The month with the highest UV index is July (UV index 7).
The months with the lowest UV index are January, February, March, October, November and December (UV index 2).
Average cloud cover in May
Tattnall, MT
- Average cloud cover in May: 33
The month with the most cloud cover is February (Cloud cover 50).
The months with the least cloud cover are July and August (Cloud cover 18).
Average visibility in May
Tattnall, MT
- Average visibility in May: 6mi
The months with the highest visibility are February, March, April, May, June, July, August, September, October, November and December (6mi).
The month with the lowest visibility is January (5mi).
