May weather forecast
Hartville, WY

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Weather in May

The last month of the spring, May, is a refreshing month in Hartville, Wyoming, with an average temperature ranging between max 64°F (17.8°C) and min 43.3°F (6.3°C).

Temperature

The onset of May marks an increase in the average high-temperature, moving from a cool 54.5°F (12.5°C) in April to a comfortable 64°F (17.8°C). May nights in Hartville cool down to an average low-temperature of 43.3°F (6.3°C).

Humidity

In May, the average relative humidity in Hartville is 57%.

Rainfall

May is the month with the most rainfall in Hartville. Rain falls for 12.4 days and accumulates 1.93" (49mm) of precipitation.

Snowfall

January through May, September through December are months with snowfall. May is the last month it regularly snows. During 2.3 snowfall days, in May, Hartville aggregates 2.56" (65mm) of snow. In Hartville, during the entire year, snow falls for 43 days and aggregates up to 18.27" (464mm) of snow.

Daylight

In May, the average length of the day in Hartville is 14h and 37min.
On the first day of the month, sunrise is at 5:52 am and sunset at 7:58 pm. On the last day of May, sunrise is at 5:24 am and sunset at 8:28 pm MDT.

Sunshine

In Hartville, the average sunshine in May is 10.5h.

UV index

The average daily maximum UV index in May is 5. A UV Index estimate of 3 to 5 represents a medium health hazard from exposure to the Sun's UV rays for average individuals.
Note: In May, the average maximum UV index of 5 translates into the following recommendations:
Take precautions. Light skin individuals may get burned in less than 30 minutes. The most potent solar radiation is around mid-day, so one should minimize exposure to direct sunlight during this period. Consider a wide-brim hat essential for effective sun defense covering your face, neck, and eyes. Be aware! The reflective nature of snow can magnify the Sun's UV radiation almost twofold.
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Frequently asked questions

What are the temperatures in Hartville in May?

In Hartville, 64°F (17.8°C) is the average high-temperature and 43.3°F (6.3°C) is the average low-temperature during May.

What is the average humidity in May in Hartville?

The average relative humidity in May is 57%.

What is the wettest month in Hartville?

The month with the most rainfall in Hartville, Wyoming, is May, when the rain falls for 12.4 days and typically aggregates up to 1.93" (49mm) of precipitation.

How many days does it rain in May in Hartville?

In Hartville, Wyoming, during May, the rain falls for 12.4 days and regularly aggregates up to 1.93" (49mm) of precipitation.

What is the last month it snows in Hartville?

May is the last month it regularly snows in Hartville, Wyoming. During 2.3 snowfall days, in May, Hartville aggregates 2.56" (65mm) of snow.

How many hours of daylight does Hartville have in May?

In Hartville, Wyoming, the average day length in May is 14h and 37min.

What time are sunrise and sunset in May in Hartville?

On the first day of May in Hartville, Wyoming, sunrise is at 5:52 am and sunset at 7:58 pm. On the last day of the month, sunrise is at 5:24 am and sunset at 8:28 pm MDT.

How long on average sun shines in May in Hartville?

In Hartville, the average sunshine duration in May is 10.5h.

How high is the UV index in May in Hartville?

The average daily maximum UV index in May in Hartville, Wyoming, is 5. A UV Index estimate of 3 to 5 represents a moderate health threat from 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
Hartville, WY

Average temperature in May - Hartville, WY
  • Average high temperature in May: 64°F

The warmest month (with the highest average high temperature) is July (86.2°F).
The month with the lowest average high temperature is December (33.8°F).

  • Average low temperature in May: 43.3°F

The month with the highest average low temperature is July (62.2°F).
The coldest month (with the lowest average low temperature) is December (19.2°F).

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Average pressure in May
Hartville, WY

Average pressure in May - Hartville, WY
  • Average pressure in May: 29.89"Hg

The month with the highest atmospheric pressure is January (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.85"Hg).

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Average wind speed in May
Hartville, WY

Average wind speed in May - Hartville, WY
  • Average wind speed in May: 10.6mph

The windiest month (with the highest average wind speed) is April (11.6mph).
The calmest month (with the lowest average wind speed) is August (8.9mph).

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Average humidity in May
Hartville, WY

Average humidity in May - Hartville, WY
  • Average humidity in May: 57%

The month with the highest relative humidity is February (70%).
The month with the lowest relative humidity is August (40%).

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Average rainfall in May
Hartville, WY

Average rainfall in May - Hartville, WY
  • Average rainfall in May: 1.93"

The wettest month (with the highest rainfall) is May (1.93").
The driest month (with the least rainfall) is January (0.31").

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Average rainfall days in May
Hartville, WY

Average rainfall days in May - Hartville, WY
  • Average rainfall days in May: 12.4 days

The month with the highest number of rainy days is May (12.4 days).
The month with the least rainy days is February (2.8 days).

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Average snowfall in May
Hartville, WY

Average snowfall in May - Hartville, WY
  • Average snowfall in May: 2.56"

The month with the highest snowfall is November (2.8").
The months with the least snowfall are June, July and August (0").

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Average snowfall days in May
Hartville, WY

Average snowfall days in May - Hartville, WY
  • Average snowfall days in May: 2.3 days

The month with the highest number of snowfall days is February (8.4 days).
The months with the least snowfall days are June, July and August (0 days).

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Average daylight in May /
Average sunshine in May
Hartville, WY

Average daylight in May / Average sunshine in May - Hartville, WY
  • Average daylight in May: 14h and 4min

The month with the longest days is June (Average daylight: 15h and 12min).
The month with the shortest days is December (Average daylight: 9h and 6min).

  • Average sunshine in May: 10h and 3min

The months with the most sunshine are July and August (Average sunshine: 11h and 48min).
The month with the least sunshine is February (Average sunshine: 6h and 24min).

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Average sunshine days in May
Hartville, WY

Average sunshine days in May - Hartville, WY
  • Average sunshine days in May: 15.5 days

The month with the most sunshine days is December (21.7 days).
The month with the least sunshine days is April (14.5 days).

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Average UV index in May
Hartville, WY

Average UV index in May - Hartville, WY
  • Average UV index in May: 5

The months with the highest UV index are June, July and August (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 2).

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Average cloud cover in May
Hartville, WY

Average cloud cover in May - Hartville, WY
  • Average cloud cover in May: 30

The month with the most cloud cover is February (Cloud cover 33).
The month with the least cloud cover is August (Cloud cover 15).

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Average visibility in May
Hartville, WY

Average visibility in May - Hartville, WY
  • Average visibility in May: 6mi

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

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Hartville, Wyoming, USA

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