May weather forecastMullan, ID

May

Weather in May

May, the last month of the spring in Mullan, is a moderate month, with an average temperature fluctuating between 35.2°F (1.8°C) and 58.6°F (14.8°C).

Temperature

In Mullan, the average high-temperature in May rises, from a frosty 46°F (7.8°C) in April, to a mild 58.6°F (14.8°C). A striking difference from the daytime highs is registered during May nights, with an average temperature of 35.2°F (1.8°C).

Humidity

In Mullan, the average relative humidity in May is 73%.

Rainfall

In Mullan, Idaho, in May, during 13.3 rainfall days, 2.09" (53mm) of precipitation is typically accumulated. In Mullan, during the entire year, the rain falls for 88.5 days and collects up to 25.12" (638mm) of precipitation.

Snowfall

January through June, September through December are months with snowfall. In Mullan, during May, snow falls for 5.4 days and regularly aggregates up to 3.78" (96mm) of snow. In Mullan, during the entire year, snow falls for 133.2 days and aggregates up to 146.61" (3724mm) of snow.

Daylight

In May, the average length of the day is 15h and 8min.
On the first day of the month, sunrise is at 5:24 am and sunset at 7:55 pm. On the last day of May, sunrise is at 4:50 am and sunset at 8:32 pm PDT.

Sunshine

The average sunshine in May is 9.6h.

UV index

In May, the average daily maximum UV index is 4. A UV Index estimate of 3 to 5 represents a medium vulnerability from exposure to the Sun's UV rays for average individuals.
Note: In May, a regular UV index of 4 translates into these guidelines:
Take necessary precautions - Protection from skin and eye injury is mandatory. The midday Sun can be harmful due to its potent UV radiation; seek shade and reduce exposure. Consider a wide-brim hat essential for effective sun defense covering your face, neck, and eyes. Be mindful! The reflection from snow can increase the Sun's UV radiation nearly twice.

Updated: Aug 28, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

The high-temperature during May is 58.6°F (14.8°C) and the low-temperature is 35.2°F (1.8°C).

In May, the average relative humidity is 73%.

In Mullan, in May, during 13.3 rainfall days, 2.09" (53mm) of precipitation is typically accumulated.

In May, it is snowing for 5.4 days. Throughout May, 3.78" (96mm) of snow is accumulated.

In May, the average day length is 15h and 8min.

On the first day of May, sunrise is at 5:24 am and sunset at 7:55 pm. On the last day of the month, sunrise is at 4:50 am and sunset at 8:32 pm PDT.

The average sunshine duration in May is 9.6h.

The average daily maximum UV index in May is 4. A UV Index value of 3 to 5 symbolizes a moderate vulnerability from exposure to Sun's UV rays.

Today

Tomorrow

Long-term

Year J F M A May J J A S O N D

Apr

May

Jun

Average high temperature

46°F

58.6°F

65.1°F

Average low temperature

Average pressure

Average wind speed

Average max. wind speed

5.3mph

5mph

5.2mph

Average wind speed gusts

Average humidity

Average rainfall

Average rainfall days

Average snowfall

Average snowfall days

Average daylight

Average sunshine

Average sunshine days

10.7

13.4

15.3

Average UV index

Average cloud cover

Average visibility

Average temperature in May
Mullan, ID

Average high temperature in May: 58.6°F

The warmest month (with the highest average high temperature) is August (77°F).
The month with the lowest average high temperature is December (27.9°F).

Average low temperature in May: 35.2°F

The month with the highest average low temperature is August (47.3°F).
The coldest month (with the lowest average low temperature) is December (16.9°F).

Average pressure in May
Mullan, ID

Average pressure in May: 29.96"Hg

The month with the highest atmospheric pressure is January (30.19"Hg).
The months with the lowest atmospheric pressure are June and August (29.93"Hg).

Average wind speed in May
Mullan, ID

Average wind speed in May: 4.5mph

The windiest month (with the highest average wind speed) is April (4.9mph).
The calmest months (with the lowest average wind speed) are August and September (4.1mph).

Average humidity in May
Mullan, ID

Average humidity in May: 73%

The month with the highest relative humidity is January (93%).
The months with the lowest relative humidity are July and August (54%).

Average rainfall in May
Mullan, ID

Average rainfall in May: 2.09"

The wettest month (with the highest rainfall) is January (3.58").
The driest month (with the least rainfall) is July (0.39").

Average rainfall days in May
Mullan, ID

Average rainfall days in May: 13.3 days

The month with the highest number of rainy days is May (13.3 days).
The months with the least rainy days are January and February (2.8 days).

Average snowfall in May
Mullan, ID

Average snowfall in May: 3.78"

The month with the highest snowfall is January (29.53").
The months with the least snowfall are July and August (0").

Average snowfall days in May
Mullan, ID

Average snowfall days in May: 5.4 days

The month with the highest number of snowfall days is March (22.1 days).
The months with the least snowfall days are July and August (0 days).

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

Average daylight in May: 15h and 6min

The month with the longest days is June (Average daylight: 15h and 54min).
The month with the shortest days is December (Average daylight: 8h and 30min).

Average sunshine in May: 9h and 36min

The month with the most sunshine is July (Average sunshine: 11h and 42min).
The month with the least sunshine is January (Average sunshine: 3h and 30min).

Average sunshine days in May
Mullan, ID

Average sunshine days in May: 13.4 days

The month with the most sunshine days is August (23.2 days).
The month with the least sunshine days is March (7.5 days).

Average UV index in May
Mullan, ID

Average UV index in May: 4

The month with the highest UV index is July (UV index 5).
The months with the lowest UV index are January, February, November and December (UV index 1).