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 start of May is characterized by an increase in the average high-temperature, transitioning from a fresh 54.9°F (12.7°C) in April to a refreshing 67.6°F (19.8°C). The month of May records an average low-temperature of 50.9°F (10.5°C) in Spirit Lake.Humidity
In Spirit Lake, the average relative humidity in May is 70%.Rainfall
In May, the rain falls for 17.6 days. Throughout May, 3.35" (85mm) of precipitation is accumulated. In Spirit Lake, during the entire year, the rain falls for 124.6 days and collects up to 24.37" (619mm) of precipitation.Snowfall
January through May, October through December are months with snowfall. May is the last month it regularly snows. During 0.8 snowfall days, in May, Spirit Lake aggregates 0.2" (5mm) of snow. Throughout the year, there are 47.4 snowfall days, and 21.93" (557mm) of snow is accumulated.Daylight
In Spirit Lake, Iowa, the average length of the day in May is 14h and 43min.On the first day of May in Spirit Lake, sunrise is at 6:11 am and sunset at 8:22 pm. On the last day of the month, sunrise is at 5:42 am and sunset at 8:53 pm CDT.
Sunshine
The average sunshine in May is 8.5h.UV index
In Spirit Lake, the average daily maximum UV index in May is 5. A UV Index value of 3 to 5 symbolizes a moderate threat to health from exposure to the Sun's UV rays for the average person.Note: The UV index of 5 during May leads to these advisories:
Guard yourself - Precautionary measures against sun damage are advocated. The best time to avoid the Sun's harmful UV radiation is during midday when it's most potent. Using UVA and UVB-protective sunglasses and sun-protective clothing is effective against UV radiation. Note this! The Sun's UV radiation can nearly be doubled by the reflection off snow.
Frequently asked questions
What is the temperature in May in Spirit Lake?
What is the average humidity in May in Spirit Lake?
How many days does it rain in May in Spirit Lake?
What is the last month it snows in Spirit Lake?
What is the average length of the day in May in Spirit Lake?
When are sunrise and sunset in May in Spirit Lake?
How long on average sun shines in May in Spirit Lake?
What is the UV index reading in May in Spirit Lake?
Average temperature in May
Spirit Lake, IA
- Average high temperature in May: 67.6°F
The warmest month (with the highest average high temperature) is July (80.2°F).
The month with the lowest average high temperature is January (22.5°F).
- Average low temperature in May: 50.9°F
The month with the highest average low temperature is July (62.2°F).
The coldest month (with the lowest average low temperature) is January (9.3°F).
Average pressure in May
Spirit Lake, IA
- Average pressure in May: 29.93"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.87"Hg).
Average wind speed in May
Spirit Lake, IA
- Average wind speed in May: 9.8mph
The windiest months (with the highest average wind speed) are January, February and April (11.2mph).
The calmest month (with the lowest average wind speed) is July (7.8mph).
Average humidity in May
Spirit Lake, IA
- Average humidity in May: 70%
The month with the highest relative humidity is January (88%).
The month with the lowest relative humidity is October (68%).
Average rainfall in May
Spirit Lake, IA
- Average rainfall in May: 3.35"
The wettest month (with the highest rainfall) is June (3.9").
The driest month (with the least rainfall) is January (0.83").
Average rainfall days in May
Spirit Lake, IA
- Average rainfall days in May: 17.6 days
The month with the highest number of rainy days is June (18.8 days).
The month with the least rainy days is February (2.1 days).
Average snowfall in May
Spirit Lake, IA
- Average snowfall in May: 0.2"
The month with the highest snowfall is February (5.47").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in May
Spirit Lake, IA
- Average snowfall days in May: 0.8 days
The month with the highest number of snowfall days is December (10.9 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in May /
Average sunshine in May
Spirit Lake, IA
- Average daylight in May: 14h and 4min
The month with the longest days is June (Average daylight: 15h and 24min).
The month with the shortest days is December (Average daylight: 9h and 0min).
- Average sunshine in May: 8h and 3min
The month with the most sunshine is July (Average sunshine: 10h and 12min).
The month with the least sunshine is January (Average sunshine: 3h and 54min).
Average sunshine days in May
Spirit Lake, IA
- Average sunshine days in May: 11 days
The month with the most sunshine days is November (20.5 days).
The month with the least sunshine days is June (8.6 days).
Average UV index in May
Spirit Lake, IA
- Average UV index in May: 5
The months with the highest UV index are June and July (UV index 6).
The months with the lowest UV index are January, February and November (UV index 1).
Average cloud cover in May
Spirit Lake, IA
- Average cloud cover in May: 43
The month with the most cloud cover is January (Cloud cover 59).
The month with the least cloud cover is July (Cloud cover 31).
Average visibility in May
Spirit Lake, IA
- 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).
Spirit Lake, Iowa, USA
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