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
May brings a temperature change, with average high-temperatures moving from April's refreshing 59.9°F (15.5°C) to a pleasant 69.4°F (20.8°C). An average low-temperature of 52.9°F (11.6°C) is observed during May nights in Columbia.Humidity
The average relative humidity in May in Columbia is 79%.Rainfall
May is the month with the most rainfall. Rain falls for 15.3 days and accumulates 2.24" (57mm) of precipitation.Snowfall
Months with snowfall in Columbia are January through May, October through December. May is the last month it regularly snows. During 0.2 snowfall days, in May, Columbia aggregates 0.2" (5mm) of snow. Throughout the year, in Columbia, there are 30.4 snowfall days, and 6.5" (165mm) of snow is accumulated.Daylight
The average length of the day in May is 14h and 31min.On the first day of the month, sunrise is at 6:09 am and sunset at 8:10 pm. On the last day of May, sunrise is at 5:42 am and sunset at 8:38 pm CDT.
Sunshine
In May, the average sunshine is 8.7h.UV index
In May, the average daily maximum UV index in Columbia is 5. A UV Index of 3 to 5 symbolizes a moderate health risk from exposure to the Sun's UV rays for ordinary individuals.Note: In May, the maximum UV index of 5 suggests these recommendations:
Be mindful. Individuals with a lighter skin tone may suffer burns in less than 30 minutes. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. A hat with a generous brim can prevent nearly 50% of UV rays from reaching your eyes. Mark this! Snow reflection can nearly double the UV radiation intensity from the Sun.
Frequently asked questions
What are May temperatures in Columbia?
What is the average humidity in May in Columbia?
What is the wettest month in Columbia?
How many days does it rain in May in Columbia?
What is the last month it snows in Columbia?
What is the average length of the day in May in Columbia?
What time are sunrise and sunset in May in Columbia?
How many hours of sunshine does Columbia have in May?
What is the UV index intensity in May in Columbia?
Average temperature in May
Columbia, IA
- Average high temperature in May: 69.4°F
The warmest month (with the highest average high temperature) is July (82.8°F).
The month with the lowest average high temperature is January (28.6°F).
- Average low temperature in May: 52.9°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 (15.1°F).
Average pressure in May
Columbia, 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 (29.89"Hg).
Average wind speed in May
Columbia, IA
- Average wind speed in May: 8.8mph
The windiest month (with the highest average wind speed) is January (10.5mph).
The calmest month (with the lowest average wind speed) is August (6.8mph).
Average humidity in May
Columbia, IA
- Average humidity in May: 79%
The month with the highest relative humidity is January (83%).
The month with the lowest relative humidity is October (71%).
Average rainfall in May
Columbia, IA
- Average rainfall in May: 2.24"
The wettest month (with the highest rainfall) is May (2.24").
The driest months (with the least rainfall) are February and December (0.47").
Average rainfall days in May
Columbia, IA
- Average rainfall days in May: 15.3 days
The month with the highest number of rainy days is May (15.3 days).
The month with the least rainy days is February (3.9 days).
Average snowfall in May
Columbia, IA
- Average snowfall in May: 0.2"
The month with the highest snowfall is January (2.24").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in May
Columbia, IA
- Average snowfall days in May: 0.2 days
The month with the highest number of snowfall days is January (8.7 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in May /
Average sunshine in May
Columbia, IA
- Average daylight in May: 14h and 3min
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: 8h and 4min
The month with the most sunshine is July (Average sunshine: 10h and 30min).
The month with the least sunshine is January (Average sunshine: 4h and 18min).
Average sunshine days in May
Columbia, IA
- Average sunshine days in May: 12 days
The months with the most sunshine days are November and December (20.5 days).
The month with the least sunshine days is June (11.6 days).
Average UV index in May
Columbia, IA
- Average UV index in May: 5
The months with the highest UV index are June, July and August (UV index 6).
The month with the lowest UV index is January (UV index 1).
Average cloud cover in May
Columbia, IA
- Average cloud cover in May: 41
The month with the most cloud cover is January (Cloud cover 53).
The months with the least cloud cover are July, August and September (Cloud cover 29).
Average visibility in May
Columbia, IA
- 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).
Columbia, Iowa, USA
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