May weather forecastTimber Lake, SD
May
Weather in May
In May, Timber Lake basks in the beauty of late spring, offering an opportunity to revel in pleasant weather. The pleasant weather conditions make it an ideal time for outdoor activities with the city being bathed in almost 15 hours of daylight. May witnesses the temperatures rising from 48.2°F (9°C) to 66.6°F (19.2°C), introducing a refreshing change. May acts as the gateway to summer with the pleasant days and comfortably cool nights. Relatively high rainfall supports abundant greenery, painting a lively picture of Timber Lake.Temperature
In Timber Lake, stepping into May brings a temperature increase, moving up from April's cool 54.1°F (12.3°C) to an enjoyable 66.6°F (19.2°C). May generally records an average low-temperature of 48.2°F (9°C).Humidity
The average relative humidity in May is 62%.Rainfall
In Timber Lake, in May, it is raining for 13.2 days, with typically 2.28" (58mm) of accumulated precipitation. In Timber Lake, during the entire year, the rain falls for 89.4 days and collects up to 15.39" (391mm) 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, Timber Lake aggregates 0.12" (3mm) of snow. In Timber Lake, during the entire year, snow falls for 49.4 days and aggregates up to 19.09" (485mm) of snow.Daylight
In Timber Lake, South Dakota, 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 7:51 pm. On the last day of May, sunrise is at 4:59 am and sunset at 8:25 pm MDT.
Sunshine
In Timber Lake, the average sunshine in May is 9.3h.UV index
In May, the average daily maximum UV index is 5. A UV Index reading of 3 to 5 represents a medium vulnerability from unsafe exposure to UV radiation for the ordinary person.Note: The UV index of 5 during May translates into the following guidance:
Heed the precautions - It is counselled to guard against solar damage. Considering the strength of solar radiation at midday, one should avoid direct Sun exposure. Sunglasses that ward off UVA and UVB rays play a pivotal role in reducing solar eye damage. Be vigilant! The reflective nature of snow can increase the Sun's UV radiation nearly twofold.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in May
Timber Lake, 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
Timber Lake, 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
Timber Lake, 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
Timber Lake, 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
Timber Lake, 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
Timber Lake, 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
Timber Lake, 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
Timber Lake, 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
Timber Lake, SD
- Average daylight in May: 14h and 54min
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 18min
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
Timber Lake, 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
Timber Lake, 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
Timber Lake, 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
Timber Lake, 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).





