May weather forecastColumbus Junction, IA
May
Weather in May
May, the last month of the spring in Columbus Junction, is an agreeable month, with an average temperature fluctuating between 53.8°F (12.1°C) and 70.5°F (21.4°C).Temperature
Noticing a change, the average high-temperature during May moves from April's moderate 59.7°F (15.4°C) to an agreeable 70.5°F (21.4°C). An average nighttime temperature of 53.8°F (12.1°C) is witnessed throughout May.Humidity
The average relative humidity in May is 78%.Rainfall
The month with the most rainfall in Columbus Junction is May, when the rain falls for 10.8 days and typically aggregates up to 1.1" (28mm) of precipitation.Snowfall
In Columbus Junction, snow does not fall in May through September.Daylight
In Columbus Junction, the average length of the day in May is 14h and 31min.On the first day of May, sunrise is at 6:01 am and sunset at 8:03 pm. On the last day of the month, sunrise is at 5:34 am and sunset at 8:31 pm CDT.
Sunshine
In Columbus Junction, the average sunshine in May is 9h.UV index
In Columbus Junction, the average daily maximum UV index in May is 5. A UV Index estimate of 3 to 5 represents a medium vulnerability from exposure to the Sun's UV rays for average individuals.Note: A typical high UV index of 5 in May suggests the following recommendations:
Heed the precautions - Protecting the skin and eyes from damage is compulsory. Stay safe from the Sun's strongest UV rays by limiting exposure during midday. A hat with a broad brim is indispensable, filtering out up to half of UV rays.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in May
Columbus Junction, IA
- Average high temperature in May: 70.5°F
The warmest month (with the highest average high temperature) is July (81.9°F).
The month with the lowest average high temperature is January (28.8°F).
- Average low temperature in May: 53.8°F
The month with the highest average low temperature is July (64.9°F).
The coldest month (with the lowest average low temperature) is January (16.7°F).
Average pressure in May
Columbus 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 (29.9"Hg).
Average wind speed in May
Columbus Junction, IA
- Average wind speed in May: 8.9mph
The windiest month (with the highest average wind speed) is April (10.6mph).
The calmest months (with the lowest average wind speed) are July and August (6.8mph).
Average humidity in May
Columbus Junction, IA
- Average humidity in May: 78%
The month with the highest relative humidity is July (83%).
The month with the lowest relative humidity is October (71%).
Average rainfall in May
Columbus Junction, IA
- Average rainfall in May: 1.1"
The wettest month (with the highest rainfall) is May (1.1").
The driest months (with the least rainfall) are February and December (0.28").
Average rainfall days in May
Columbus Junction, IA
- Average rainfall days in May: 10.8 days
The month with the highest number of rainy days is June (11 days).
The month with the least rainy days is January (3 days).
Average snowfall in May
Columbus Junction, IA
- Average snowfall in May: 0"
The month with the highest snowfall is January (1.02").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in May
Columbus Junction, IA
- Average snowfall days in May: 0 days
The month with the highest number of snowfall days is January (6.7 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight in May /
Average sunshine in May
Columbus Junction, IA
- Average daylight in May: 14h and 30min
The month with the longest days is June (Average daylight: 15h and 6min).
The month with the shortest days is December (Average daylight: 9h and 18min).
- Average sunshine in May: 9h and 0min
The month with the most sunshine is July (Average sunshine: 10h and 18min).
The months with the least sunshine are January and February (Average sunshine: 4h and 18min).
Average sunshine days in May
Columbus Junction, IA
- Average sunshine days in May: 15.8 days
The month with the most sunshine days is December (25.3 days).
The month with the least sunshine days is June (14.8 days).
Average UV index in May
Columbus Junction, 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 and December (UV index 1).
Average cloud cover in May
Columbus Junction, IA
- Average cloud cover in May: 40
The month with the most cloud cover is January (Cloud cover 55).
The month with the least cloud cover is August (Cloud cover 28).
Average visibility in May
Columbus Junction, IA
- Average visibility in May: 6mi
The months with the highest visibility are January, February, March, April, May, June, August, September, October, November and December (6mi).
The month with the lowest visibility is July (5mi).
