May weather forecast and climate
Tolley, ND

Weather in May

The last month of the spring, May, is an enjoyable month in Tolley, North Dakota, with average temperature fluctuating between 46.4°F (8°C) and 64.8°F (18.2°C).

Temperature

In Tolley, the average high-temperature in May increases considerably, from a frosty 49.8°F (9.9°C) in April, to a comfortable 64.8°F (18.2°C). In May, in Tolley, the average low-temperature is 46.4°F (8°C).

Humidity

In May, the average relative humidity is 59%.

Rainfall

In May, the rain falls for 12.8 days. Throughout May, 2.01" (51mm) of precipitation is accumulated. In Tolley, during the entire year, the rain falls for 104.5 days and collects up to 16.1" (409mm) of precipitation.

Snowfall

January through May, October through December are months with snowfall. May is the last month it regularly snows. During 0.6 snowfall days, in May, Tolley aggregates 0.12" (3mm) of snow. Throughout the year, there are 74.4 snowfall days, and 21.42" (544mm) of snow is accumulated.

Daylight

The average length of the day in Tolley is 15.3h.

Sunshine

In Tolley, the average sunshine is 9.5h.

UV index

In Tolley, the average daily maximum UV index in May is 4. A UV Index value of 3 to 5 symbolizes a moderate threat to health from unprotected exposure to the Sun's UV rays for the ordinary person.
Note: The daily maximum UV index of 4 in May interpret into the following advice:
Take precautions - Protection against the skin and eye damage is obliged. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes. Caution! The reflection of snow can nearly double the intensity of the Sun's UV radiation.
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FAQ

What is the temperature in May in Tolley?

The average high-temperature, in May, is 64.8°F (18.2°C), while the average low-temperature is 46.4°F (8°C).

What is the average humidity in May in Tolley?

The average relative humidity in May is 59%.

How much does it rain in Tolley in May?

In May, the rain falls for 12.8 days. Throughout May, 2.01" (51mm) of precipitation is accumulated.

What is the last month it snows in Tolley?

May is the last month it regularly snows in Tolley. During 0.6 snowfall days, in May, Tolley aggregates 0.12" (3mm) of snow.

How many hours of daylight does Tolley have in May?

In May, the average length of the day in Tolley is 15.3h.

How long on average sun shines in May in Tolley?

The average sunshine in May in Tolley, North Dakota, is 9.5h.

How high is the UV index in May in Tolley?

The average daily maximum UV index in May in Tolley, North Dakota, is 4. A UV Index estimate of 3 to 5 represents a moderate vulnerability from unprotected exposure to the UV radiation.

Average temperature in May
Tolley, ND

Average temperature in May - Tolley, ND
  • Average high temperature in May: 64.8°F

The warmest month (with the highest average high temperature) is August (81.5°F).
The month with the lowest average high temperature is January (18.1°F).

  • Average low temperature in May: 46.4°F

The month with the highest average low temperature is July (59°F).
The coldest month (with the lowest average low temperature) is January (4.3°F).

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Average pressure in May
Tolley, ND

Average pressure in May - Tolley, ND
  • Average pressure in May: 29.93"

The month with the highest atmospheric pressure is February (30.18").
The month with the lowest atmospheric pressure is June (29.84").

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Average wind speed in May
Tolley, ND

Average wind speed in May - Tolley, ND
  • Average wind speed in May: 10.1mph

The windiest month (with the highest average wind speed) is October (10.7mph).
The calmest month (with the lowest average wind speed) is August (8.5mph).

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Average humidity in May
Tolley, ND

Average humidity in May - Tolley, ND
  • Average humidity in May: 59%

The month with the highest relative humidity is January (90%).
The month with the lowest relative humidity is August (54%).

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Average rainfall in May
Tolley, ND

Average rainfall in May - Tolley, ND
  • Average rainfall in May: 2.01"

The wettest month (with the highest rainfall) is June (2.83").
The driest months (with the least rainfall) are January and February (0.51").

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Average rainfall days in May
Tolley, ND

Average rainfall days in May - Tolley, ND
  • Average rainfall days in May: 12.8 days

The month with the highest number of rainy days is June (15.8 days).
The month with the least rainy days is February (2 days).

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Average snowfall in May
Tolley, ND

Average snowfall in May - Tolley, ND
  • Average snowfall in May: 0.12"

The month with the highest snowfall is February (3.82").
Months with the least snowfall are June, July, August and September (0").

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Average snowfall days in May
Tolley, ND

Average snowfall days in May - Tolley, ND
  • Average snowfall days in May: 0.6 days

The month with the highest number of snowfall days is January (14.7 days).
Months with the least snowfall days are June, July, August and September (0 days).

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Average daylight in May /
Average sunshine in May
Tolley, ND

Average daylight in May / Average sunshine in May - Tolley, ND
  • Average daylight in May: 15.3h

The month with the longest days is June (Average daylight: 16.1h).
The month with the shortest days is December (Average daylight: 8.4h).

  • Average sunshine in May: 9.5h

The month with the most sunshine is July (Average sunshine: 11.3h).
Months with the least sunshine are January and December (Average sunshine: 3.8).

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Average sunshine days in May
Tolley, ND

Average sunshine days in May - Tolley, ND
  • Average sunshine days in May: 15.1 days

The month with the most sunshine days is October (18.2 days).
The month with the least sunshine days is June (10.7 days).

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Average UV index in May
Tolley, ND

Average UV index in May - Tolley, ND
  • Average UV index in May: 4

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

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Average cloud cover in May
Tolley, ND

Average cloud cover in May - Tolley, ND
  • Average cloud cover in May: 37

The month with the most cloud cover is February (Cloud cover 63).
The month with the least cloud cover is August (Cloud cover 22).

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Average visibility in May
Tolley, ND

Average visibility in May - Tolley, ND
  • Average visibility in May: 6mi

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

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