May weather forecastTwin Falls, ID
May
Weather in May
May is a cheerful month in Twin Falls, with temperatures reaching a comfortable 67.1°F (19.5°C) high. Rainfall during this month is relatively low, with an average of 0.75" (19mm) signifying the full arrival of dry and warm weather. Residents take full advantage of the sunny days by engaging in various outdoor activities. Barbecues, gardening and outdoor sports dominate the agenda, marking an exciting turning point in the city's weather cycle. Evenings in May are filled with vibrant sunsets and occasional light breezes, making it a perfect time for alfresco dining and leisurely walks.Temperature
The beginning of May marks a shift in the average high-temperature, moving from April's mild 57.4°F (14.1°C) to a comfortable 67.1°F (19.5°C). Twin Falls notes a substantial temperature decline from the daytime peaks throughout May, with an average nighttime temperature of 45.3°F (7.4°C).Humidity
In May, the average relative humidity is 46%.Rainfall
In Twin Falls, in May, during 9.7 rainfall days, 0.75" (19mm) of precipitation is typically accumulated. Throughout the year, in Twin Falls, Idaho, there are 91.4 rainfall days, and 9.29" (236mm) of precipitation is accumulated.Snowfall
May through September are months without snowfall.Daylight
In Twin Falls, the average length of the day in May is 14h and 38min.On the first day of May, sunrise is at 6:31 am and sunset at 8:38 pm. On the last day of the month, sunrise is at 6:02 am and sunset at 9:08 pm MDT.
Sunshine
The average sunshine in May is 11h.UV index
In Twin Falls, the average daily maximum UV index in May is 5. A UV Index estimate of 3 to 5 represents a medium vulnerability from unprotected exposure to Sun's UV rays for the average person.Note: The maximum daily UV index of 5 in May interprets into the following recommendations:
Act with care - The suggestion to avoid sunburn is emphasized. The Sun's most harmful UV rays are emitted around midday; avoid staying outdoors for long during this time. Sunglasses providing both UVA and UVB protection are non-negotiable on sunlit days. Be cautious! The UV radiation from the Sun can be magnified almost twofold by snow reflection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in May
Twin Falls, ID
- Average high temperature in May: 67.1°F
The warmest month (with the highest average high temperature) is July (89.6°F).
The month with the lowest average high temperature is December (34°F).
- Average low temperature in May: 45.3°F
The month with the highest average low temperature is July (62.1°F).
The coldest month (with the lowest average low temperature) is December (23°F).
Average pressure in May
Twin Falls, ID
- Average pressure in May: 29.89"Hg
The month with the highest atmospheric pressure is January (30.28"Hg).
The month with the lowest atmospheric pressure is June (29.87"Hg).
Average wind speed in May
Twin Falls, ID
- Average wind speed in May: 8.7mph
The windiest month (with the highest average wind speed) is April (10mph).
The calmest month (with the lowest average wind speed) is August (7.3mph).
Average humidity in May
Twin Falls, ID
- Average humidity in May: 46%
The month with the highest relative humidity is January (78%).
The month with the lowest relative humidity is July (28%).
Average rainfall in May
Twin Falls, ID
- Average rainfall in May: 0.75"
The wettest month (with the highest rainfall) is December (1.3").
The driest months (with the least rainfall) are July and August (0.24").
Average rainfall days in May
Twin Falls, ID
- Average rainfall days in May: 9.7 days
The month with the highest number of rainy days is March (12.1 days).
The month with the least rainy days is August (4.4 days).
Average snowfall in May
Twin Falls, ID
- Average snowfall in May: 0"
The month with the highest snowfall is January (5.04").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in May
Twin Falls, ID
- Average snowfall days in May: 0.2 days
The month with the highest number of snowfall days is December (9.4 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in May /
Average sunshine in May
Twin Falls, ID
- Average daylight in May: 14h and 36min
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 6min).
- Average sunshine in May: 11h and 0min
The month with the most sunshine is July (Average sunshine: 12h and 0min).
The month with the least sunshine is December (Average sunshine: 5h and 48min).
Average sunshine days in May
Twin Falls, ID
- Average sunshine days in May: 18.6 days
The month with the most sunshine days is August (23.3 days).
The month with the least sunshine days is March (14.7 days).
Average UV index in May
Twin Falls, ID
- Average UV index in May: 5
The month with the highest UV index is July (UV index 7).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in May
Twin Falls, ID
- Average cloud cover in May: 24
The month with the most cloud cover is December (Cloud cover 40).
The months with the least cloud cover are July and August (Cloud cover 10).
Average visibility in May
Twin Falls, ID
- 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).
