May weather forecastForsyth, MT
May
Weather in May
The last month of the spring, May, is a comfortable month in Forsyth, Montana, with an average temperature fluctuating between 65.7°F (18.7°C) and 47.1°F (8.4°C).Temperature
May's arrival sees a rise in the average high-temperature, jumping from April's fresh 55°F (12.8°C) to an enjoyable 65.7°F (18.7°C). May nights experience a consistent temperature drop to a chilly 47.1°F (8.4°C).Humidity
In Forsyth, the average relative humidity in May is 55%.Rainfall
May is the month with the most rainfall in Forsyth. Rain falls for 15.1 days and accumulates 2.05" (52mm) of precipitation.Snowfall
January through May, October through December are months with snowfall. May is the last month it regularly snows. During 0.7 snowfall days, in May, Forsyth aggregates 0.24" (6mm) of snow. Throughout the year, there are 56.6 snowfall days, and 21.06" (535mm) of snow is accumulated.Daylight
In Forsyth, the average length of the day in May is 15h and 1min.On the first day of the month, sunrise is at 5:51 am and sunset at 8:16 pm. On the last day of May, in Forsyth, sunrise is at 5:18 am and sunset at 8:50 pm MDT.
Sunshine
The average sunshine in May is 10.2h.UV index
In Forsyth, the average daily maximum UV index in May is 5. A UV Index estimate of 3 to 5 represents a medium health hazard from exposure to the Sun's UV radiation for the ordinary person.Note: In May, the maximum UV index of 5 transforms into these recommendations:
Exercise prevention - Warding off sunburn is urged. The intensity of the Sun's UV radiation during midday suggests reducing time spent outdoors. Equip yourself with UVA and UVB-filtering sunglasses on clear, sunny days. Pay attention! The reflection of snow can enhance the Sun's UV radiation almost double.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in May
Forsyth, MT
- Average high temperature in May: 65.7°F
The warmest month (with the highest average high temperature) is July (86.5°F).
The month with the lowest average high temperature is January (29.7°F).
- Average low temperature in May: 47.1°F
The month with the highest average low temperature is July (64.9°F).
The coldest month (with the lowest average low temperature) is January (16.3°F).
Average pressure in May
Forsyth, MT
- Average pressure in May: 29.91"Hg
The months with the highest atmospheric pressure are January and February (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.84"Hg).
Average wind speed in May
Forsyth, MT
- Average wind speed in May: 10.5mph
The windiest month (with the highest average wind speed) is April (10.9mph).
The calmest month (with the lowest average wind speed) is August (8.9mph).
Average humidity in May
Forsyth, MT
- Average humidity in May: 55%
The month with the highest relative humidity is January (81%).
The month with the lowest relative humidity is August (38%).
Average rainfall in May
Forsyth, MT
- Average rainfall in May: 2.05"
The wettest month (with the highest rainfall) is May (2.05").
The driest month (with the least rainfall) is November (0.63").
Average rainfall days in May
Forsyth, MT
- Average rainfall days in May: 15.1 days
The month with the highest number of rainy days is May (15.1 days).
The months with the least rainy days are January, February and December (6.5 days).
Average snowfall in May
Forsyth, MT
- Average snowfall in May: 0.24"
The month with the highest snowfall is February (4.53").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in May
Forsyth, MT
- Average snowfall days in May: 0.7 days
The month with the highest number of snowfall days is January (12.5 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in May /
Average sunshine in May
Forsyth, MT
- Average daylight in May: 15h and 0min
The month with the longest days is June (Average daylight: 15h and 42min).
The month with the shortest days is December (Average daylight: 8h and 42min).
- Average sunshine in May: 10h and 12min
The month with the most sunshine is July (Average sunshine: 11h and 48min).
The month with the least sunshine is February (Average sunshine: 5h and 12min).
Average sunshine days in May
Forsyth, MT
- Average sunshine days in May: 12.3 days
The month with the most sunshine days is September (17.9 days).
The month with the least sunshine days is April (11.9 days).
Average UV index in May
Forsyth, MT
- Average UV index in May: 5
The month with the highest UV index is July (UV index 7).
The month with the lowest UV index is December (UV index 1).
Average cloud cover in May
Forsyth, MT
- Average cloud cover in May: 33
The month with the most cloud cover is February (Cloud cover 46).
The months with the least cloud cover are July and August (Cloud cover 15).
Average visibility in May
Forsyth, 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).
