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
Noticing a change, the average high-temperature during May moves from April's refreshing 56.1°F (13.4°C) to an agreeable 68.4°F (20.2°C). The average temperature in Castle Grove, Iowa, during May nights dips to a cool 51.1°F (10.6°C).Humidity
In Castle Grove, the average relative humidity in May is 80%.Rainfall
The month with the most rainfall in Castle Grove, Iowa, is May, when the rain falls for 18.6 days and typically aggregates up to 4.25" (108mm) of precipitation.Snowfall
In Castle Grove, snow does not fall in May through September.Daylight
In Castle Grove, Iowa, the average length of the day in May is 14h and 37min.On the first day of the month, sunrise is at 5:59 am and sunset at 8:05 pm. On the last day of May, in Castle Grove, Iowa, sunrise is at 5:31 am and sunset at 8:34 pm CDT.
Sunshine
In Castle Grove, the average sunshine in May is 8.4h.UV index
In May, the average daily maximum UV index in Castle Grove, Iowa, is 5. A UV Index value of 3 to 5 symbolizes a medium health hazard from unprotected exposure to Sun's UV rays for average individuals.Note: The maximum UV index of 5 during May translates into these guidelines:
Take precautions. Light skin individuals may get burned in less than 30 minutes. The Sun's radiation is especially intense around midday; try to stay in shade during this period. For optimum UV protection, wear sun-resistant attire complemented with a hat and quality shades.
Frequently asked questions
What is the temperature in May in Castle Grove?
What is the average humidity in May in Castle Grove?
What is the rainiest month in Castle Grove?
How much does it rain in Castle Grove in May?
When it does not snow in Castle Grove?
Does it snow in Castle Grove in May?
How many hours of daylight does Castle Grove have in May?
What time are sunrise and sunset in May in Castle Grove?
How long on average sun shines in May in Castle Grove?
How high is the UV index in May in Castle Grove?
Average temperature in May
Castle Grove, IA
- Average high temperature in May: 68.4°F
The warmest month (with the highest average high temperature) is July (80.1°F).
The month with the lowest average high temperature is January (25.2°F).
- Average low temperature in May: 51.1°F
The month with the highest average low temperature is July (63.3°F).
The coldest month (with the lowest average low temperature) is January (13.3°F).
Average pressure in May
Castle Grove, IA
- Average pressure in May: 29.94"Hg
The month with the highest atmospheric pressure is January (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.9"Hg).
Average wind speed in May
Castle Grove, IA
- Average wind speed in May: 9.1mph
The windiest month (with the highest average wind speed) is April (10.7mph).
The calmest month (with the lowest average wind speed) is August (6.9mph).
Average humidity in May
Castle Grove, IA
- Average humidity in May: 80%
The months with the highest relative humidity are January and February (86%).
The month with the lowest relative humidity is October (74%).
Average rainfall in May
Castle Grove, IA
- Average rainfall in May: 4.25"
The wettest month (with the highest rainfall) is May (4.25").
The driest months (with the least rainfall) are January and February (1.26").
Average rainfall days in May
Castle Grove, IA
- Average rainfall days in May: 18.6 days
The month with the highest number of rainy days is May (18.6 days).
The month with the least rainy days is January (5.2 days).
Average snowfall in May
Castle Grove, IA
- Average snowfall in May: 0"
The month with the highest snowfall is January (5.04").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in May
Castle Grove, IA
- Average snowfall days in May: 0 days
The month with the highest number of snowfall days is January (12.1 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
Castle Grove, 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 months with the most sunshine are July and August (Average sunshine: 9h and 54min).
The month with the least sunshine is January (Average sunshine: 3h and 48min).
Average sunshine days in May
Castle Grove, IA
- Average sunshine days in May: 10.6 days
The month with the most sunshine days is September (17 days).
The month with the least sunshine days is June (10.5 days).
Average UV index in May
Castle Grove, 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
Castle Grove, IA
- Average cloud cover in May: 44
The month with the most cloud cover is January (Cloud cover 60).
The month with the least cloud cover is August (Cloud cover 30).
Average visibility in May
Castle Grove, IA
- Average visibility in May: 6mi
The months with the highest visibility are February, March, April, May, June, August, September, October, November and December (6mi).
The months with the lowest visibility are January and July (5mi).
Castle Grove, Iowa, USA
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