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
May's arrival brings a change in high-temperatures, moving from a cool 54.1°F (12.3°C) in April to a comfortable 66.6°F (19.2°C). Firesteel experiences a consistent average temperature of 48.2°F (9°C) throughout the nights in May.Humidity
In May, the average relative humidity is 62%.Rainfall
In Firesteel, during May, the rain falls for 13.2 days and regularly aggregates up to 2.28" (58mm) of precipitation. Throughout the year, there are 89.4 rainfall days, and 15.39" (391mm) of precipitation is accumulated.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, Firesteel aggregates 0.12" (3mm) of snow. Throughout the year, there are 49.4 snowfall days, and 19.09" (485mm) of snow is accumulated.Daylight
In Firesteel, the average length of the day in May is 14h and 55min.On the first day of the month, sunrise is at 5:31 am and sunset at 7:52 pm. On the last day of May, sunrise is at 5:00 am and sunset at 8:25 pm MDT.
Sunshine
In May, the average sunshine is 9.3h.UV index
In Firesteel, the average daily maximum UV index in May is 5. A UV Index value of 3 to 5 symbolizes a moderate health risk from exposure to the Sun's UV radiation for average individuals.Note: The maximum UV index, 5 during May, leads to the following recommendations:
Make use of precautions - Suggestions to resist sunburn are communicated. Midday is when the Sun's radiation is strongest; avoid prolonged exposure during this time. Safeguard your eyes, ears, and face from sun rays with the aid of a wide-brim hat. Alert! The snow's reflection can amplify the UV radiation of the Sun nearly twice.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the temperature in May?
What is the average humidity in May?
How many days does it rain in May in Firesteel?
What is the last month it snows?
How many hours of daylight does Firesteel have in May?
What time are sunrise and sunset in May in Firesteel?
How long on average sun shines in May?
What is the UV index reading in May?
Average temperature in May
Firesteel, SD
- Average high temperature in May: 66.6°F
The warmest month (with the highest average high temperature) is July (86.4°F).
The month with the lowest average high temperature is January (23°F).
- Average low temperature in May: 48.2°F
The month with the highest average low temperature is July (65.5°F).
The coldest month (with the lowest average low temperature) is January (9°F).
Average pressure in May
Firesteel, SD
- Average pressure in May: 29.92"Hg
The months with the highest atmospheric pressure are January and February (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.84"Hg).
Average wind speed in May
Firesteel, SD
- Average wind speed in May: 10.8mph
The windiest month (with the highest average wind speed) is April (11.5mph).
The calmest month (with the lowest average wind speed) is February (9.4mph).
Average humidity in May
Firesteel, SD
- Average humidity in May: 62%
The month with the highest relative humidity is January (87%).
The month with the lowest relative humidity is August (52%).
Average rainfall in May
Firesteel, SD
- Average rainfall in May: 2.28"
The wettest month (with the highest rainfall) is June (2.32").
The driest month (with the least rainfall) is January (0.47").
Average rainfall days in May
Firesteel, SD
- Average rainfall days in May: 13.2 days
The month with the highest number of rainy days is June (13.8 days).
The month with the least rainy days is February (1.3 days).
Average snowfall in May
Firesteel, SD
- Average snowfall in May: 0.12"
The month with the highest snowfall is February (3.98").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in May
Firesteel, SD
- Average snowfall days in May: 0.3 days
The month with the highest number of snowfall days is January (11.8 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in May /
Average sunshine in May
Firesteel, SD
- 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: 9h and 2min
The month with the most sunshine is July (Average sunshine: 11h and 24min).
The month with the least sunshine is January (Average sunshine: 4h and 6min).
Average sunshine days in May
Firesteel, SD
- Average sunshine days in May: 15.5 days
The month with the most sunshine days is November (21.5 days).
The month with the least sunshine days is June (13.6 days).
Average UV index in May
Firesteel, 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 and December (UV index 1).
Average cloud cover in May
Firesteel, SD
- Average cloud cover in May: 36
The month with the most cloud cover is January (Cloud cover 56).
The months with the least cloud cover are July and August (Cloud cover 21).
Average visibility in May
Firesteel, SD
- 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).
Firesteel, South Dakota, USA
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