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
As April gives way to May, the average high-temperature in Armour, South Dakota, displays an increase, moving from a refreshing 57.7°F (14.3°C) to an agreeable 68.5°F (20.3°C). Armour sees an average low-temperature of 50.4°F (10.2°C) during May.Humidity
The average relative humidity in May is 69%.Rainfall
May is the month with the most rainfall in Armour, South Dakota. Rain falls for 15.3 days and accumulates 2.72" (69mm) of precipitation.Snowfall
In Armour, snow does not fall in May through September.Daylight
In May, the average length of the day in Armour is 14h and 43min.On the first day of May, sunrise is at 6:25 am and sunset at 8:35 pm. On the last day of the month, sunrise is at 5:55 am and sunset at 9:06 pm CDT.
Sunshine
In Armour, South Dakota, the average sunshine in May is 9h.UV index
In May, the average daily maximum UV index 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 average person.Note: The daily high UV index of 5 during May translates into the following recommendations:
Take precautions. Light skin individuals may get burned in less than 30 minutes. The solar radiation around mid-day is intense; avoid the Sun and stay safe. For holistic sun protection encompassing the eyes, ears, face, and neck, a wide-brim hat is key.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the usual temperature for Armour in May?
What is the average humidity in May in Armour?
What is the wettest month in Armour?
How many days does it rain in May in Armour?
When it does not snow in Armour?
Does it snow in Armour in May?
What is the average length of the day in May in Armour?
When are sunrise and sunset in May in Armour?
How many hours of sunshine does Armour have in May?
What is the UV index intensity in May in Armour?
Average temperature in May
Armour, SD
- Average high temperature in May: 68.5°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 (27.3°F).
- Average low temperature in May: 50.4°F
The month with the highest average low temperature is July (65.7°F).
The coldest month (with the lowest average low temperature) is January (13.6°F).
Average pressure in May
Armour, SD
- Average pressure in May: 29.91"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.85"Hg).
Average wind speed in May
Armour, SD
- Average wind speed in May: 9.6mph
The windiest month (with the highest average wind speed) is April (11.1mph).
The calmest month (with the lowest average wind speed) is July (8.3mph).
Average humidity in May
Armour, SD
- Average humidity in May: 69%
The month with the highest relative humidity is January (84%).
The month with the lowest relative humidity is October (62%).
Average rainfall in May
Armour, SD
- Average rainfall in May: 2.72"
The wettest month (with the highest rainfall) is May (2.72").
The driest month (with the least rainfall) is February (0.31").
Average rainfall days in May
Armour, SD
- Average rainfall days in May: 15.3 days
The month with the highest number of rainy days is May (15.3 days).
The month with the least rainy days is January (2.9 days).
Average snowfall in May
Armour, SD
- Average snowfall in May: 0"
The months with the highest snowfall are January and March (1.93").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in May
Armour, SD
- Average snowfall days in May: 0 days
The month with the highest number of snowfall days is January (8.2 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight in May /
Average sunshine in May
Armour, SD
- Average daylight in May: 14h and 4min
The month with the longest days is June (Average daylight: 15h and 18min).
The month with the shortest days is December (Average daylight: 9h and 0min).
- Average sunshine in May: 9h and 0min
The month with the most sunshine is July (Average sunshine: 11h and 6min).
The month with the least sunshine is January (Average sunshine: 4h and 42min).
Average sunshine days in May
Armour, SD
- Average sunshine days in May: 13.3 days
The month with the most sunshine days is November (23.4 days).
The month with the least sunshine days is June (12.3 days).
Average UV index in May
Armour, SD
- Average UV index in May: 5
The months with the highest UV index are June, July and August (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in May
Armour, SD
- Average cloud cover in May: 39
The month with the most cloud cover is January (Cloud cover 49).
The month with the least cloud cover is July (Cloud cover 23).
Average visibility in May
Armour, SD
- 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).
Armour, South Dakota, USA
Weather forecast for your location
2. Allow the app to use your location