May weather forecast
Roberts, ID

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Weather in May

May, the last month of the spring in Roberts, is a comfortable month, with temperature in the range of an average low of 40.1°F (4.5°C) and an average high of 63.5°F (17.5°C).

Temperature

May comes with an increase, with the average high-temperature moving from a cool 52.3°F (11.3°C) in April to a refreshing 63.5°F (17.5°C). Roberts, in May, displays a significant temperature downturn during the night, with an average reading of 40.1°F (4.5°C).

Humidity

In Roberts, the average relative humidity in May is 54%.

Rainfall

The month with the most rainfall is May, when the rain falls for 12.8 days and typically aggregates up to 1.26" (32mm) of precipitation.

Snowfall

January through May, September through December are months with snowfall. May is the last month it regularly snows. During 0.6 snowfall days, in May, Roberts aggregates 0.67" (17mm) of snow. In Roberts, during the entire year, snow falls for 79 days and aggregates up to 31.54" (801mm) of snow.

Daylight

The average length of the day in May is 14h and 45min.
On the first day of May, sunrise is at 6:19 am and sunset at 8:31 pm. On the last day of the month, sunrise is at 5:49 am and sunset at 9:03 pm MDT.

Sunshine

The average sunshine in May is 10.9h.

UV index

In May, the average daily maximum UV index is 4. A UV Index estimate of 3 to 5 represents a medium health hazard from exposure to the Sun's UV radiation for the average person.
Note: An average UV index of 4 in May transforms into this advice:
Make use of precautions - Suggestions to resist sunburn are communicated. Direct exposure to the Sun during its peak hours around mid-day should be minimized for safety. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects. Alert! The snow's reflection can amplify the UV radiation of the Sun nearly twice.

Frequently asked questions

What is the usual temperature for Roberts in May?

May temperatures vary between a high-temperature of 63.5°F (17.5°C) and a low-temperature of 40.1°F (4.5°C).

What is the average humidity in May in Roberts?

The average relative humidity in May in Roberts is 54%.

What is the rainiest month?

The month with the most rainfall in Roberts is May, when the rain falls for 12.8 days and typically aggregates up to 1.26" (32mm) of precipitation.

How much does it rain in May?

In May, the rain falls for 12.8 days. Throughout May, 1.26" (32mm) of precipitation is accumulated.

What is the last month it snows?

May is the last month it regularly snows. During 0.6 snowfall days, in May, Roberts aggregates 0.67" (17mm) of snow.

How many hours of daylight does Roberts have in May?

In Roberts, the average day length in May is 14h and 45min.

What time are sunrise and sunset in May?

On the first day of May, sunrise is at 6:19 am and sunset at 8:31 pm. On the last day of the month, sunrise is at 5:49 am and sunset at 9:03 pm MDT.

How many hours of sunshine does Roberts have in May?

In Roberts, the average sunshine duration in May is 10.9h.

What is the UV index intensity in May?

The average daily maximum UV index in May is 4. A UV Index reading of 3 to 5 represents a moderate health threat from exposure to the Sun's UV radiation.
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
Roberts, ID

Average temperature in May - Roberts, ID
  • Average high temperature in May: 63.5°F

The warmest month (with the highest average high temperature) is July (85.1°F).
The month with the lowest average high temperature is December (27.1°F).

  • Average low temperature in May: 40.1°F

The month with the highest average low temperature is August (53.8°F).
The coldest month (with the lowest average low temperature) is January (13.8°F).

Average pressure in May
Roberts, ID

Average pressure in May - Roberts, ID
  • Average pressure in May: 29.92"Hg

The month with the highest atmospheric pressure is January (30.29"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).

Average wind speed in May
Roberts, ID

Average wind speed in May - Roberts, ID
  • Average wind speed in May: 7.4mph

The windiest month (with the highest average wind speed) is April (8mph).
The calmest month (with the lowest average wind speed) is January (4.9mph).

Average humidity in May
Roberts, ID

Average humidity in May - Roberts, ID
  • Average humidity in May: 54%

The month with the highest relative humidity is January (90%).
The month with the lowest relative humidity is August (37%).

Average rainfall in May
Roberts, ID

Average rainfall in May - Roberts, ID
  • Average rainfall in May: 1.26"

The wettest month (with the highest rainfall) is May (1.26").
The driest month (with the least rainfall) is July (0.31").

Average rainfall days in May
Roberts, ID

Average rainfall days in May - Roberts, ID
  • Average rainfall days in May: 12.8 days

The month with the highest number of rainy days is April (14.2 days).
The month with the least rainy days is July (5.8 days).

Average snowfall in May
Roberts, ID

Average snowfall in May - Roberts, ID
  • Average snowfall in May: 0.67"

The month with the highest snowfall is January (8.31").
The months with the least snowfall are June, July and August (0").

Average snowfall days in May
Roberts, ID

Average snowfall days in May - Roberts, ID
  • Average snowfall days in May: 0.6 days

The month with the highest number of snowfall days is January (17.3 days).
The months with the least snowfall days are July and August (0 days).

Average daylight in May /
Average sunshine in May
Roberts, ID

Average daylight in May / Average sunshine in May - Roberts, ID
  • Average daylight in May: 14h and 4min

The month with the longest days is June (Average daylight: 15h and 24min).
The month with the shortest days is December (Average daylight: 9h and 0min).

  • Average sunshine in May: 10h and 5min

The month with the most sunshine is July (Average sunshine: 12h and 0min).
The month with the least sunshine is January (Average sunshine: 4h and 42min).

Average sunshine days in May
Roberts, ID

Average sunshine days in May - Roberts, ID
  • Average sunshine days in May: 14.8 days

The month with the most sunshine days is July (22.3 days).
The month with the least sunshine days is February (9.9 days).

Average UV index in May
Roberts, ID

Average UV index in May - Roberts, ID
  • Average UV index in May: 4

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

Average cloud cover in May
Roberts, ID

Average cloud cover in May - Roberts, ID
  • Average cloud cover in May: 25

The month with the most cloud cover is February (Cloud cover 52).
The months with the least cloud cover are July and August (Cloud cover 11).

Average visibility in May
Roberts, ID

Average visibility in May - Roberts, ID
  • Average visibility in May: 6mi

The months with the highest visibility are April, May, June, July, August, September, October and November (6mi).
The months with the lowest visibility are January, February and December (4mi).

Roberts, Idaho, USA

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