May weather forecast
Onawa, ME

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Weather in May

May, the last month of the spring in Onawa, is a refreshing month, with temperature in the range of an average high of 61.7°F (16.5°C) and an average low of 41.7°F (5.4°C).

Temperature

Onawa's May weather is marked by a distinct rise in high-temperatures, escalating from a frosty 46.9°F (8.3°C) in April to a refreshing 61.7°F (16.5°C). Onawa's temperature drops to an average low of 41.7°F (5.4°C) during the nights of May.

Humidity

With an average relative humidity of 76%, May is the least humid month.

Rainfall

In Onawa, in May, during 15.8 rainfall days, 2.01" (51mm) of precipitation is typically accumulated. Throughout the year, there are 152.4 rainfall days, and 20.83" (529mm) of precipitation is accumulated.

Snowfall

Months with snowfall in Onawa are January through May, October through December. May is the last month it regularly snows in Onawa. During 0.4 snowfall days, in May, Onawa aggregates 0.12" (3mm) of snow. In Onawa, during the entire year, snow falls for 71.8 days and aggregates up to 27.28" (693mm) of snow.

Daylight

In Onawa, the average length of the day in May is 14h and 55min.
On the first day of the month, sunrise is at 5:24 am and sunset at 7:44 pm. On the last day of May, sunrise is at 4:52 am and sunset at 8:17 pm EDT.

Sunshine

The average sunshine in May in Onawa is 7.7h.

UV index

The average daily maximum UV index in May is 4. A UV Index estimate of 3 to 5 represents a medium vulnerability from exposure to the Sun's UV rays for ordinary individuals.
Note: The maximum UV index of 4 during May leads to these instructions:
Take precautions - Protection against sunburn is recommended. Sun exposure should be minimized, especially during midday, to avoid harmful UV radiation. On sunny days, it's ideal to wear sunglasses that filter out UVA and UVB rays. Be attentive! The reflective property of snow can nearly double 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 temperature in May in Onawa?

The average high-temperature and low-temperature during May are 61.7°F (16.5°C) and 41.7°F (5.4°C) respectively.

What is the least humid month in Onawa?

With an average relative humidity of 76%, May is the least humid month in Onawa.

What is the average humidity in May in Onawa?

In Onawa, the average relative humidity in May is 76%.

How many days does it rain in May in Onawa?

In Onawa, in May, during 15.8 rainfall days, 2.01" (51mm) of precipitation is typically accumulated.

What is the last month it snows in Onawa?

May is the last month it regularly snows. During 0.4 snowfall days, in May, Onawa aggregates 0.12" (3mm) of snow.

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

In May, the average day length is 14h and 55min.

What time are sunrise and sunset in May in Onawa?

In May, on the first day of the month, sunrise is at 5:24 am and sunset at 7:44 pm. On the last day of the month, in Onawa, Maine, sunrise is at 4:52 am and sunset at 8:17 pm EDT.

How many hours of sunshine does Onawa have in May?

In Onawa, the average sunshine duration in May is 7.7h.

How high is the UV index in May in Onawa?

In Onawa, Maine, the average daily maximum UV index in May is 4. A UV Index value of 3 to 5 symbolizes a moderate health threat 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
Onawa, ME

Average temperature in May - Onawa, ME
  • Average high temperature in May: 61.7°F

The warmest month (with the highest average high temperature) is July (76.6°F).
The month with the lowest average high temperature is January (23.4°F).

  • Average low temperature in May: 41.7°F

The month with the highest average low temperature is July (55.6°F).
The coldest month (with the lowest average low temperature) is January (9.9°F).

Average pressure in May
Onawa, ME

Average pressure in May - Onawa, ME
  • Average pressure in May: 29.98"Hg

The month with the highest atmospheric pressure is September (30.04"Hg).
The month with the lowest atmospheric pressure is June (29.9"Hg).

Average wind speed in May
Onawa, ME

Average wind speed in May - Onawa, ME
  • Average wind speed in May: 6.6mph

The windiest month (with the highest average wind speed) is March (7.5mph).
The calmest month (with the lowest average wind speed) is August (5.2mph).

Average humidity in May
Onawa, ME

Average humidity in May - Onawa, ME
  • Average humidity in May: 76%

The month with the highest relative humidity is February (89%).
The month with the lowest relative humidity is May (76%).

Average rainfall in May
Onawa, ME

Average rainfall in May - Onawa, ME
  • Average rainfall in May: 2.01"

The wettest month (with the highest rainfall) is April (2.24").
The driest months (with the least rainfall) are February and March (1.22").

Average rainfall days in May
Onawa, ME

Average rainfall days in May - Onawa, ME
  • Average rainfall days in May: 15.8 days

The month with the highest number of rainy days is June (16.7 days).
The month with the least rainy days is February (7.7 days).

Average snowfall in May
Onawa, ME

Average snowfall in May - Onawa, ME
  • Average snowfall in May: 0.12"

The month with the highest snowfall is February (5.71").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in May
Onawa, ME

Average snowfall days in May - Onawa, ME
  • Average snowfall days in May: 0.4 days

The month with the highest number of snowfall days is February (16.2 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average daylight in May /
Average sunshine in May
Onawa, ME

Average daylight in May / Average sunshine in May - Onawa, ME
  • Average daylight in May: 14h and 5min

The month with the longest days is June (Average daylight: 15h and 36min).
The month with the shortest days is December (Average daylight: 8h and 48min).

  • Average sunshine in May: 7h and 4min

The month with the most sunshine is August (Average sunshine: 9h and 42min).
The month with the least sunshine is February (Average sunshine: 3h and 36min).

Average sunshine days in May
Onawa, ME

Average sunshine days in May - Onawa, ME
  • Average sunshine days in May: 11.5 days

The month with the most sunshine days is September (16.3 days).
The month with the least sunshine days is April (10.4 days).

Average UV index in May
Onawa, ME

Average UV index in May - Onawa, ME
  • Average UV index in May: 4

The months with the highest UV index are June and July (UV index 5).
The months with the lowest UV index are January, February, March, October, November and December (UV index 2).

Average cloud cover in May
Onawa, ME

Average cloud cover in May - Onawa, ME
  • Average cloud cover in May: 53

The month with the most cloud cover is February (Cloud cover 60).
The months with the least cloud cover are August and September (Cloud cover 41).

Average visibility in May
Onawa, ME

Average visibility in May - Onawa, ME
  • Average visibility in May: 5mi

The months with the highest visibility are April, May, June, July, August, September, October, November and December (5mi).
The months with the lowest visibility are January, February and March (4mi).

Onawa, Maine, USA

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