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
With the onset of May, Montour experiences a temperature shift, with the average high-temperature moving from a moderate 57.7°F (14.3°C) in April to an agreeable 68.9°F (20.5°C). Throughout May, the nighttime temperature averages to a cool 52.2°F (11.2°C).Humidity
In Montour, the average relative humidity in May is 78%.Rainfall
The month with the most rainfall in Montour is May, when the rain falls for 17.2 days and typically aggregates up to 4.13" (105mm) of precipitation.Snowfall
January through May, October through December are months with snowfall in Montour. May is the last month it regularly snows in Montour, Iowa. During 0.2 snowfall days, in May, Montour aggregates 0.28" (7mm) of snow. In Montour, during the entire year, snow falls for 38.6 days and aggregates up to 14.29" (363mm) of snow.Daylight
In May, the average length of the day is 14h and 35min.On the first day of the month, sunrise is at 6:05 am and sunset at 8:10 pm. On the last day of May, in Montour, sunrise is at 5:37 am and sunset at 8:39 pm CDT.
Sunshine
The average sunshine in May in Montour is 8.3h.UV index
In Montour, the average daily maximum UV index in May is 5. A UV Index estimate of 3 to 5 represents a moderate threat to health from unprotected exposure to Sun's UV rays for ordinary individuals.Note: The UV index of 5 in May translates into these instructions:
Be careful. Light complexion individuals might get burns in fewer than 30 minutes. Around midday, solar radiation is most harmful; hence, exposure should be limited. On days when the sun blazes, arm yourself with sunglasses that block UVA and UVB radiation. Be prepared! The intensity of the Sun's UV radiation can be amplified nearly double due to snow reflection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are May temperatures in Montour?
What is the average humidity in May in Montour?
What is the wettest month in Montour?
How many days does it rain in May in Montour?
What is the last month it snows in Montour?
What is the average length of the day in May in Montour?
What time are sunrise and sunset in May in Montour?
How many hours of sunshine does Montour have in May?
What is the UV index reading in May in Montour?
Average temperature in May
Montour, IA
- Average high temperature in May: 68.9°F
The warmest month (with the highest average high temperature) is July (80.8°F).
The month with the lowest average high temperature is January (26.1°F).
- Average low temperature in May: 52.2°F
The month with the highest average low temperature is July (64.4°F).
The coldest month (with the lowest average low temperature) is January (13.5°F).
Average pressure in May
Montour, IA
- Average pressure in May: 29.93"Hg
The month with the highest atmospheric pressure is January (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.89"Hg).
Average wind speed in May
Montour, IA
- Average wind speed in May: 9.3mph
The windiest month (with the highest average wind speed) is April (10.9mph).
The calmest months (with the lowest average wind speed) are July and August (7.1mph).
Average humidity in May
Montour, IA
- Average humidity in May: 78%
The month with the highest relative humidity is January (85%).
The month with the lowest relative humidity is October (72%).
Average rainfall in May
Montour, IA
- Average rainfall in May: 4.13"
The wettest month (with the highest rainfall) is May (4.13").
The driest month (with the least rainfall) is January (0.98").
Average rainfall days in May
Montour, IA
- Average rainfall days in May: 17.2 days
The month with the highest number of rainy days is June (17.4 days).
The month with the least rainy days is February (4.1 days).
Average snowfall in May
Montour, IA
- Average snowfall in May: 0.28"
The month with the highest snowfall is January (4.21").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in May
Montour, IA
- Average snowfall days in May: 0.2 days
The month with the highest number of snowfall days is January (10.5 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in May /
Average sunshine in May
Montour, IA
- Average daylight in May: 14h and 4min
The month with the longest days is June (Average daylight: 15h and 12min).
The month with the shortest days is December (Average daylight: 9h and 12min).
- Average sunshine in May: 8h and 2min
The month with the most sunshine is July (Average sunshine: 9h and 48min).
The month with the least sunshine is January (Average sunshine: 3h and 54min).
Average sunshine days in May
Montour, IA
- Average sunshine days in May: 12.3 days
The month with the most sunshine days is October (18.5 days).
The month with the least sunshine days is June (10.9 days).
Average UV index in May
Montour, 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, October, November and December (UV index 2).
Average cloud cover in May
Montour, IA
- Average cloud cover in May: 44
The month with the most cloud cover is January (Cloud cover 58).
The months with the least cloud cover are August and September (Cloud cover 32).
Average visibility in May
Montour, IA
- Average visibility in May: 6mi
The months with the highest visibility are February, March, April, May, June, September, October, November and December (6mi).
The months with the lowest visibility are January, July and August (5mi).
Montour, Iowa, USA
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