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
Farmington experiences a temperature shift with the start of May, with average high-temperatures moving from a comfortable 61.9°F (16.6°C) in April to an agreeable 71.2°F (21.8°C). During May, an average low-temperature of 54.3°F (12.4°C) is observed.Humidity
The average relative humidity in May is 80%.Rainfall
The month with the most rainfall is May, when the rain falls for 17.6 days and typically aggregates up to 3.7" (94mm) of precipitation.Snowfall
May through September are months without snowfall.Daylight
In May, the average length of the day is 14h and 28min.On the first day of the month, sunrise is at 6:04 am and sunset at 8:03 pm. On the last day of May, sunrise is at 5:38 am and sunset at 8:31 pm CDT.
Sunshine
In May, the average sunshine is 8.9h.UV index
The average daily maximum UV index in May is 5. A UV Index of 3 to 5 symbolizes a moderate threat to health from exposure to the Sun's UV radiation for the ordinary person.Note: The maximum UV index of 5 during May translates into these guidelines:
Prioritize safety - The need to safeguard skin and eyes from harm is emphasized. Exposing oneself to the midday Sun can be harmful due to the strong UV radiation; limit your time outside. Using UVA and UVB-protective sunglasses and sun-protective clothing is effective against UV radiation.
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Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the average May temperature?
What is the average humidity in May?
What is the rainiest month?
How many days does it rain in May?
When it does not snow?
Does it snow in May?
What is the average length of the day in May?
What time are sunrise and sunset in May?
How many hours of sunshine does Farmington have in May?
What is the UV index reading in May?
Average temperature in May
Farmington, IA
- Average high temperature in May: 71.2°F
The warmest month (with the highest average high temperature) is July (83.3°F).
The month with the lowest average high temperature is January (31.6°F).
- Average low temperature in May: 54.3°F
The month with the highest average low temperature is July (66.6°F).
The coldest month (with the lowest average low temperature) is January (18.9°F).
Average pressure in May
Farmington, 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 (29.9"Hg).
Average wind speed in May
Farmington, IA
- Average wind speed in May: 8.6mph
The windiest month (with the highest average wind speed) is January (10.5mph).
The calmest months (with the lowest average wind speed) are July and August (6.7mph).
Average humidity in May
Farmington, IA
- Average humidity in May: 80%
The months with the highest relative humidity are June and July (81%).
The month with the lowest relative humidity is October (71%).
Average rainfall in May
Farmington, IA
- Average rainfall in May: 3.7"
The wettest month (with the highest rainfall) is May (3.7").
The driest month (with the least rainfall) is January (1.22").
Average rainfall days in May
Farmington, IA
- Average rainfall days in May: 17.6 days
The month with the highest number of rainy days is May (17.6 days).
The month with the least rainy days is February (4.7 days).
Average snowfall in May
Farmington, IA
- Average snowfall in May: 0"
The month with the highest snowfall is January (3.98").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in May
Farmington, IA
- Average snowfall days in May: 0 days
The month with the highest number of snowfall days is January (7.4 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
Farmington, IA
- Average daylight in May: 14h and 3min
The month with the longest days is June (Average daylight: 15h and 0min).
The month with the shortest days is December (Average daylight: 9h and 18min).
- Average sunshine in May: 8h and 5min
The month with the most sunshine is July (Average sunshine: 10h and 24min).
The month with the least sunshine is January (Average sunshine: 4h and 18min).
Average sunshine days in May
Farmington, IA
- Average sunshine days in May: 11.5 days
The month with the most sunshine days is December (19.5 days).
The month with the least sunshine days is June (10.9 days).
Average UV index in May
Farmington, IA
- Average UV index in May: 5
The months with the highest UV index are June, July and August (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in May
Farmington, IA
- Average cloud cover in May: 39
The month with the most cloud cover is January (Cloud cover 53).
The month with the least cloud cover is July (Cloud cover 28).
Average visibility in May
Farmington, 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).
Farmington, Iowa, USA
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