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
The arrival of May brings a change in Parmelee's weather, with average high-temperatures moving from April's refreshing 56.1°F (13.4°C) to a comfortable 66.6°F (19.2°C). Parmelee's nights in May cool down to an average low-temperature of 49.3°F (9.6°C).Humidity
In Parmelee, South Dakota, the average relative humidity in May is 63%.Rainfall
The month with the most rainfall is May, when the rain falls for 15.7 days and typically aggregates up to 2.6" (66mm) of precipitation.Snowfall
Months with snowfall are January through May, September through December. May is the last month it regularly snows. During 0.6 snowfall days, in May, Parmelee aggregates 0.47" (12mm) of snow. In Parmelee, during the entire year, snow falls for 41.1 days and aggregates up to 14.53" (369mm) of snow.Daylight
In May, the average length of the day is 14h and 43min.On the first day of May, sunrise is at 6:35 am and sunset at 8:46 pm. On the last day of the month, sunrise is at 6:06 am and sunset at 9:17 pm CDT.
Sunshine
In Parmelee, the average sunshine in May is 9.4h.UV index
In May, the average daily maximum UV index is 5. A UV Index value of 3 to 5 symbolizes a moderate health risk from unsafe exposure to UV radiation for the ordinary person.Note: In May, the average maximum UV index of 5 translates into the following recommendations:
Make use of precautions - Shielding skin and eyes from injury is a requirement. Exposing oneself to the midday Sun can be harmful due to the strong UV radiation; limit your time outside. Opt for tightly woven and loose clothing to enhance protection from the Sun. Heads up! The UV radiation from the Sun can almost be doubled by snow reflection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are May temperatures?
What is the average humidity in May?
What is the rainiest month?
How many days does it rain in May?
What is the last month it snows?
How many hours of daylight does Parmelee have in May?
What time are sunrise and sunset in May?
How many hours of sunshine does Parmelee have in May?
What is the UV index intensity in May?
Average temperature in May
Parmelee, 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 (31.5°F).
- Average low temperature in May: 49.3°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 (18.5°F).
Average pressure in May
Parmelee, SD
- Average pressure in May: 29.91"Hg
The month with the highest atmospheric pressure is January (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.85"Hg).
Average wind speed in May
Parmelee, SD
- Average wind speed in May: 12.2mph
The windiest month (with the highest average wind speed) is April (13.1mph).
The calmest months (with the lowest average wind speed) are July and August (10.6mph).
Average humidity in May
Parmelee, SD
- Average humidity in May: 63%
The month with the highest relative humidity is January (78%).
The month with the lowest relative humidity is September (56%).
Average rainfall in May
Parmelee, SD
- Average rainfall in May: 2.6"
The wettest month (with the highest rainfall) is May (2.6").
The driest month (with the least rainfall) is January (0.47").
Average rainfall days in May
Parmelee, SD
- Average rainfall days in May: 15.7 days
The month with the highest number of rainy days is May (15.7 days).
The month with the least rainy days is January (2.4 days).
Average snowfall in May
Parmelee, SD
- Average snowfall in May: 0.47"
The month with the highest snowfall is December (2.76").
The months with the least snowfall are June, July and August (0").
Average snowfall days in May
Parmelee, SD
- Average snowfall days in May: 0.6 days
The month with the highest number of snowfall days is January (9.7 days).
The months with the least snowfall days are June, July and August (0 days).
Average daylight in May /
Average sunshine in May
Parmelee, 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 2min
The month with the most sunshine is July (Average sunshine: 11h and 12min).
The month with the least sunshine is January (Average sunshine: 5h and 24min).
Average sunshine days in May
Parmelee, SD
- Average sunshine days in May: 12.2 days
The month with the most sunshine days is December (20.4 days).
The month with the least sunshine days is June (11.2 days).
Average UV index in May
Parmelee, 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
Parmelee, SD
- Average cloud cover in May: 37
The month with the most cloud cover is February (Cloud cover 44).
The months with the least cloud cover are July, August and September (Cloud cover 21).
Average visibility in May
Parmelee, 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).
Parmelee, South Dakota, USA
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