May weather forecast
Tripoli, IA

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Weather in May

May, the last month of the spring in Tripoli, is a refreshing month, with an average temperature varying between 50.5°F (10.3°C) and 66.7°F (19.3°C).

Temperature

The onset of May brings a temperature shift, with the average high-temperature moving from a cool 55°F (12.8°C) in April to a comfortable 66.7°F (19.3°C). An average nighttime temperature of 50.5°F (10.3°C) is noted during the month of May.

Humidity

The average relative humidity in May in Tripoli, Iowa, is 78%.

Rainfall

In Tripoli, in May, it is raining for 20.3 days, with typically 4.45" (113mm) of accumulated precipitation. In Tripoli, during the entire year, the rain falls for 146.8 days and collects up to 30.79" (782mm) of precipitation.

Snowfall

January through May, October through December are months with snowfall in Tripoli. May is the last month it regularly snows. During 0.2 snowfall days, in May, Tripoli aggregates 0.24" (6mm) of snow. Throughout the year, in Tripoli, there are 55.9 snowfall days, and 23.46" (596mm) of snow is accumulated.

Daylight

In May, the average length of the day is 14h and 40min.
On the first day of the month, sunrise is at 6:01 am and sunset at 8:10 pm. On the last day of May, in Tripoli, sunrise is at 5:33 am and sunset at 8:40 pm CDT.

Sunshine

In Tripoli, the average sunshine in May is 8.4h.

UV index

In Tripoli, Iowa, the average daily maximum UV index in May is 5. A UV Index value of 3 to 5 symbolizes a medium health hazard from exposure to the Sun's UV radiation for the average person.
Note: During May, 5 as the daily maximum UV index converts into the following advice:
Be vigilant - A duty to shield skin and eyes from injury exists. For skin protection, it's recommended to minimize Sun exposure during its peak hours around midday. To mitigate harm from sun exposure, pick sunglasses offering UVA and UVB defense. Consider this! The reflection from snow can almost double the intensity of the Sun's UV radiation.
Updated: Feb 12, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the average May temperature in Tripoli?

The average high-temperature, in May, in Tripoli, is 66.7°F (19.3°C), while the average low-temperature is 50.5°F (10.3°C).

What is the average humidity in May in Tripoli?

In Tripoli, Iowa, the average relative humidity in May is 78%.

How many days does it rain in May in Tripoli?

In Tripoli, Iowa, in May, it is raining for 20.3 days, with typically 4.45" (113mm) of accumulated precipitation.

What is the last month it snows in Tripoli?

May is the last month it regularly snows. During 0.2 snowfall days, in May, Tripoli aggregates 0.24" (6mm) of snow.

What is the average length of the day in May in Tripoli?

The average day length in May in Tripoli is 14h and 40min.

What time are sunrise and sunset in May in Tripoli?

On the first day of May, sunrise is at 6:01 am and sunset at 8:10 pm. On the last day of the month, sunrise is at 5:33 am and sunset at 8:40 pm CDT.

How long on average sun shines in May in Tripoli?

The average sunshine duration in May in Tripoli, Iowa, is 8.4h.

What is the UV index reading in May in Tripoli?

The average daily maximum UV index in May is 5. A UV Index reading of 3 to 5 represents a medium health risk from unsafe exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in May
Tripoli, IA

Average temperature in May - Tripoli, IA
  • Average high temperature in May: 66.7°F

The warmest month (with the highest average high temperature) is July (79.2°F).
The month with the lowest average high temperature is January (23.5°F).

  • Average low temperature in May: 50.5°F

The month with the highest average low temperature is July (62.6°F).
The coldest month (with the lowest average low temperature) is January (11.1°F).

Average pressure in May
Tripoli, IA

Average pressure in May - Tripoli, IA
  • Average pressure in May: 29.94"Hg

The month with the highest atmospheric pressure is January (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.89"Hg).

Average wind speed in May
Tripoli, IA

Average wind speed in May - Tripoli, IA
  • Average wind speed in May: 9.3mph

The windiest month (with the highest average wind speed) is April (10.8mph).
The calmest months (with the lowest average wind speed) are July and August (7.1mph).

Average humidity in May
Tripoli, IA

Average humidity in May - Tripoli, IA
  • Average humidity in May: 78%

The months with the highest relative humidity are January and February (88%).
The month with the lowest relative humidity is October (73%).

Average rainfall in May
Tripoli, IA

Average rainfall in May - Tripoli, IA
  • Average rainfall in May: 4.45"

The wettest month (with the highest rainfall) is June (5.04").
The driest month (with the least rainfall) is January (1.14").

Average rainfall days in May
Tripoli, IA

Average rainfall days in May - Tripoli, IA
  • Average rainfall days in May: 20.3 days

The month with the highest number of rainy days is May (20.3 days).
The months with the least rainy days are January and February (4.3 days).

Average snowfall in May
Tripoli, IA

Average snowfall in May - Tripoli, IA
  • Average snowfall in May: 0.24"

The month with the highest snowfall is February (5.83").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in May
Tripoli, IA

Average snowfall days in May - Tripoli, IA
  • Average snowfall days in May: 0.2 days

The month with the highest number of snowfall days is January (13.6 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average daylight in May /
Average sunshine in May
Tripoli, IA

Average daylight in May / Average sunshine in May - Tripoli, IA
  • Average daylight in May: 14h and 4min

The month with the longest days is June (Average daylight: 15h and 18min).
The month with the shortest days is December (Average daylight: 9h and 6min).

  • Average sunshine in May: 8h and 2min

The months with the most sunshine are July and August (Average sunshine: 9h and 48min).
The month with the least sunshine is January (Average sunshine: 3h and 36min).

Average sunshine days in May
Tripoli, IA

Average sunshine days in May - Tripoli, IA
  • Average sunshine days in May: 8.9 days

The month with the most sunshine days is November (16.8 days).
The month with the least sunshine days is June (7.3 days).

Average UV index in May
Tripoli, IA

Average UV index in May - Tripoli, IA
  • Average UV index in May: 5

The month with the highest UV index is June (UV index 6).
The months with the lowest UV index are January and December (UV index 1).

Average cloud cover in May
Tripoli, IA

Average cloud cover in May - Tripoli, IA
  • Average cloud cover in May: 43

The month with the most cloud cover is January (Cloud cover 62).
The months with the least cloud cover are August and September (Cloud cover 32).

Average visibility in May
Tripoli, IA

Average visibility in May - Tripoli, IA
  • Average visibility in May: 6mi

The months with the highest visibility are March, April, May, June, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February and July (5mi).

Tripoli, Iowa, USA

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