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 an increase in high-temperatures, moving from a cool 54.5°F (12.5°C) in April to a comfortable 66.6°F (19.2°C). During the nights in May, Jackson Junction experiences a consistent average temperature of 49.8°F (9.9°C).Humidity
The average relative humidity in May is 80%.Rainfall
In Jackson Junction, during May, the rain falls for 19.8 days and regularly aggregates up to 4.37" (111mm) of precipitation. In Jackson Junction, during the entire year, the rain falls for 146.5 days and collects up to 31.3" (795mm) 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, Jackson Junction aggregates 0.2" (5mm) of snow. Throughout the year, there are 59.9 snowfall days, and 24.84" (631mm) of snow is accumulated.Daylight
The average length of the day in May is 14h and 41min.On the first day of May, sunrise is at 6:00 am and sunset at 8:09 pm. On the last day of the month, sunrise is at 5:31 am and sunset at 8:40 pm CDT.
Sunshine
In Jackson Junction, the average sunshine in May is 8.1h.UV index
May through August, with an average maximum UV index of 5, are months with the highest UV index. A UV Index reading of 3 to 5 represents a moderate health risk from unprotected exposure to Sun's UV rays for the average person.Note: The maximum daily UV index, 5 in May, converts into the following recommendations:
Heed the precautions - It is counselled to guard against solar damage. Limiting sun exposure during midday hours helps in reducing the harmful effects of UV radiation. Limit sun-induced ocular harm with sunglasses that feature UVA and UVB filtration. Watch out! The Sun's UV radiation can be nearly magnified twofold due to snow reflection.
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 much does it rain in May?
What is the last month it snows?
What is the average length of the day in May?
When is the sunrise / sunset in May?
How long on average sun shines in May?
What is the month with the highest UV index?
How high is the UV index in May?
Average temperature in May
Jackson Junction, IA
- Average high temperature in May: 66.6°F
The warmest month (with the highest average high temperature) is July (79°F).
The month with the lowest average high temperature is January (22.8°F).
- Average low temperature in May: 49.8°F
The month with the highest average low temperature is July (62.4°F).
The coldest month (with the lowest average low temperature) is January (10.6°F).
Average pressure in May
Jackson Junction, IA
- Average pressure in May: 29.94"Hg
The month with the highest atmospheric pressure is January (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.89"Hg).
Average wind speed in May
Jackson Junction, IA
- Average wind speed in May: 9.3mph
The windiest month (with the highest average wind speed) is April (10.7mph).
The calmest months (with the lowest average wind speed) are July and August (7.1mph).
Average humidity in May
Jackson Junction, IA
- Average humidity in May: 80%
The month with the highest relative humidity is January (89%).
The months with the lowest relative humidity are April and October (75%).
Average rainfall in May
Jackson Junction, IA
- Average rainfall in May: 4.37"
The wettest month (with the highest rainfall) is June (5.08").
The driest month (with the least rainfall) is January (1.18").
Average rainfall days in May
Jackson Junction, IA
- Average rainfall days in May: 19.8 days
The months with the highest number of rainy days are May and June (19.8 days).
The month with the least rainy days is February (4.3 days).
Average snowfall in May
Jackson Junction, IA
- Average snowfall in May: 0.2"
The month with the highest snowfall is February (6.5").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in May
Jackson Junction, IA
- Average snowfall days in May: 0.3 days
The month with the highest number of snowfall days is January (14.5 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in May /
Average sunshine in May
Jackson Junction, IA
- 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 6min).
- Average sunshine in May: 8h and 1min
The month with the most sunshine is August (Average sunshine: 9h and 48min).
The month with the least sunshine is January (Average sunshine: 3h and 30min).
Average sunshine days in May
Jackson Junction, IA
- Average sunshine days in May: 9 days
The month with the most sunshine days is November (16.2 days).
The month with the least sunshine days is June (7.9 days).
Average UV index in May
Jackson Junction, IA
- Average UV index in May: 5
The months with the highest UV index are May, June, July and August (UV index 5).
The months with the lowest UV index are January and December (UV index 1).
Average cloud cover in May
Jackson Junction, IA
- Average cloud cover in May: 45
The month with the most cloud cover is January (Cloud cover 63).
The month with the least cloud cover is August (Cloud cover 32).
Average visibility in May
Jackson Junction, IA
- Average visibility in May: 6mi
The months with the highest visibility are March, April, May, June, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February and July (5mi).
Jackson Junction, Iowa, USA
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