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, the average high-temperature slightly shifts from April's mild 58.6°F (14.8°C) to a pleasant 69.3°F (20.7°C). In the month of May, Guernsey's average low-temperature falls to a fresh 52.3°F (11.3°C).Humidity
In Guernsey, Iowa, the average relative humidity in May is 79%.Rainfall
May is the month with the most rainfall in Guernsey, Iowa. Rain falls for 18.8 days and accumulates 4.57" (116mm) of precipitation.Snowfall
Months with snowfall in Guernsey are January through May, October through December. May is the last month it regularly snows in Guernsey, Iowa. During 0.2 snowfall days, in May, Guernsey aggregates 0.12" (3mm) of snow. In Guernsey, Iowa, during the entire year, snow falls for 39 days and aggregates up to 16.65" (423mm) of snow.Daylight
In Guernsey, the average length of the day in May is 14h and 33min.On the first day of the month, sunrise is at 6:04 am and sunset at 8:07 pm. On the last day of May, sunrise is at 5:37 am and sunset at 8:36 pm CDT.
Sunshine
In May, the average sunshine is 8.6h.UV index
In May, the average daily maximum UV index in Guernsey is 5. A UV Index of 3 to 5 symbolizes a medium vulnerability from unprotected exposure to Sun's UV rays for average individuals.Note: In May, a daily UV index of 5 turns into the following recommendations:
Be mindful. Individuals with a lighter skin tone may suffer burns in less than 30 minutes. To prevent harmful UV exposure, minimize direct contact with the Sun around midday. A hat with a broad brim is indispensable, filtering out up to half of UV rays. Foresee this! The reflection from snow can nearly double the intensity of UV radiation from the Sun.
Frequently asked questions
What are the temperatures in Guernsey in May?
What is the average humidity in May in Guernsey?
What is the wettest month in Guernsey?
How much does it rain in Guernsey in May?
What is the last month it snows in Guernsey?
What is the average length of the day in May in Guernsey?
When are sunrise and sunset in May in Guernsey?
How long on average sun shines in May in Guernsey?
How high is the UV index in May in Guernsey?
Average temperature in May
Guernsey, IA
- Average high temperature in May: 69.3°F
The warmest month (with the highest average high temperature) is July (81.1°F).
The month with the lowest average high temperature is January (27.1°F).
- Average low temperature in May: 52.3°F
The month with the highest average low temperature is July (64.8°F).
The coldest month (with the lowest average low temperature) is January (14.7°F).
Average pressure in May
Guernsey, IA
- Average pressure in May: 29.94"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
Guernsey, IA
- Average wind speed in May: 9.1mph
The windiest months (with the highest average wind speed) are January and April (10.7mph).
The calmest months (with the lowest average wind speed) are July and August (7mph).
Average humidity in May
Guernsey, IA
- Average humidity in May: 79%
The months with the highest relative humidity are January and July (84%).
The month with the lowest relative humidity is October (72%).
Average rainfall in May
Guernsey, IA
- Average rainfall in May: 4.57"
The wettest month (with the highest rainfall) is May (4.57").
The driest month (with the least rainfall) is January (1.18").
Average rainfall days in May
Guernsey, IA
- Average rainfall days in May: 18.8 days
The month with the highest number of rainy days is June (18.9 days).
The month with the least rainy days is February (5 days).
Average snowfall in May
Guernsey, IA
- Average snowfall in May: 0.12"
The month with the highest snowfall is February (5.24").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in May
Guernsey, IA
- Average snowfall days in May: 0.2 days
The month with the highest number of snowfall days is January (10.6 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in May /
Average sunshine in May
Guernsey, IA
- Average daylight in May: 14h and 4min
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 12min).
- Average sunshine in May: 8h and 4min
The month with the most sunshine is July (Average sunshine: 10h and 6min).
The month with the least sunshine is January (Average sunshine: 4h and 6min).
Average sunshine days in May
Guernsey, IA
- Average sunshine days in May: 9.6 days
The month with the most sunshine days is November (18.5 days).
The month with the least sunshine days is June (8.3 days).
Average UV index in May
Guernsey, IA
- Average UV index in May: 5
The months with the highest UV index are June and July (UV index 6).
The month with the lowest UV index is January (UV index 1).
Average cloud cover in May
Guernsey, IA
- Average cloud cover in May: 42
The month with the most cloud cover is January (Cloud cover 56).
The month with the least cloud cover is August (Cloud cover 29).
Average visibility in May
Guernsey, 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).
Guernsey, Iowa, USA
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