May weather forecast
Afton, WY

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Weather in May

May marks the definitive start of spring in Afton, with the snowfall dropping significantly to 4.65" (118mm) and temperatures reaching warmer thresholds. As the ground begins to thaw considerably, dapples of green start breaking the monochrome winterscape. The newfound warmth invites the first verdant sprouts and a new lease of life. The weather is conducive for outdoor exploration, facilitating a return to nature's lap with hikes, picnics, and river sports.

Temperature

Afton in May experiences an increase in the average high-temperature, moving from April's icy 40.6°F (4.8°C) to a cool 53.8°F (12.1°C). A marked drop from daytime peak temperatures to an average low-temperature of 30.7°F (-0.7°C) is observed during the nights in May in Afton.

Humidity

The average relative humidity in May in Afton is 69%.

Rainfall

In May, the rain falls for 16.8 days. Throughout May, 2.56" (65mm) of precipitation is accumulated. Throughout the year, there are 109.5 rainfall days, and 21.61" (549mm) of precipitation is accumulated.

Snowfall

Months with snowfall in Afton are January through June, September through December. In Afton, during May, snow falls for 5.1 days and regularly aggregates up to 4.65" (118mm) of snow. In Afton, during the entire year, snow falls for 126.9 days and aggregates up to 106.65" (2709mm) of snow.

Daylight

In Afton, the average length of the day in May is 14h and 39min.
On the first day of the month, sunrise is at 6:16 am and sunset at 8:24 pm. On the last day of May, in Afton, Wyoming, sunrise is at 5:48 am and sunset at 8:54 pm MDT.

Sunshine

The average sunshine in May is 10.3h.

UV index

The average daily maximum UV index in May in Afton is 3. A UV Index of 3 to 5 symbolizes a moderate threat to health from exposure to the Sun's UV radiation for ordinary individuals.
Note: In May, a daily maximum UV index of 3 leads to the following instructions:
Take necessary precautions - Protection from skin and eye injury is mandatory. Sun's radiation is most powerful around mid-day, so it's best to limit outdoor activities during this time. 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. Consider this! The reflection from snow can almost double the intensity of the Sun's UV radiation.
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Frequently asked questions

What is the usual temperature for Afton in May?

In Afton, in May, the average high-temperature is 53.8°F (12.1°C), and the average low-temperature is 30.7°F (-0.7°C).

What is the average humidity in May in Afton?

In May, the average relative humidity in Afton is 69%.

How many days does it rain in May in Afton?

In Afton, Wyoming, in May, during 16.8 rainfall days, 2.56" (65mm) of precipitation is typically accumulated.

How much does it snow in Afton in May?

In Afton, during May, snow falls for 5.1 days and regularly aggregates up to 4.65" (118mm) of snow.

How many hours of daylight does Afton have in May?

In Afton, the average day length in May is 14h and 39min.

What time are sunrise and sunset in May in Afton?

In May, on the first day of the month, sunrise is at 6:16 am and sunset at 8:24 pm. On the last day of the month, sunrise is at 5:48 am and sunset at 8:54 pm MDT.

How long on average sun shines in May in Afton?

In May, the average sunshine duration in Afton, Wyoming, is 10.3h.

How high is the UV index in May in Afton?

In May, the average daily maximum UV index in Afton, Wyoming, is 3. A UV Index estimate of 3 to 5 represents a moderate vulnerability from unprotected exposure to 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
Afton, WY

Average temperature in May - Afton, WY
  • Average high temperature in May: 53.8°F

The warmest month (with the highest average high temperature) is July (75.9°F).
The month with the lowest average high temperature is December (24.1°F).

  • Average low temperature in May: 30.7°F

The month with the highest average low temperature is July (45.7°F).
The coldest month (with the lowest average low temperature) is January (5.4°F).

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Average pressure in May
Afton, WY

Average pressure in May - Afton, WY
  • 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).

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Average wind speed in May
Afton, WY

Average wind speed in May - Afton, WY
  • Average wind speed in May: 5.1mph

The windiest month (with the highest average wind speed) is June (5.7mph).
The calmest months (with the lowest average wind speed) are January and December (4.2mph).

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Average humidity in May
Afton, WY

Average humidity in May - Afton, WY
  • Average humidity in May: 69%

The month with the highest relative humidity is February (93%).
The month with the lowest relative humidity is August (45%).

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Average rainfall in May
Afton, WY

Average rainfall in May - Afton, WY
  • Average rainfall in May: 2.56"

The wettest month (with the highest rainfall) is February (2.72").
The driest months (with the least rainfall) are July and August (0.63").

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Average rainfall days in May
Afton, WY

Average rainfall days in May - Afton, WY
  • Average rainfall days in May: 16.8 days

The month with the highest number of rainy days is May (16.8 days).
The month with the least rainy days is January (4.7 days).

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Average snowfall in May
Afton, WY

Average snowfall in May - Afton, WY
  • Average snowfall in May: 4.65"

The month with the highest snowfall is February (19.96").
The months with the least snowfall are July and August (0").

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Average snowfall days in May
Afton, WY

Average snowfall days in May - Afton, WY
  • Average snowfall days in May: 5.1 days

The month with the highest number of snowfall days is December (21.7 days).
The months with the least snowfall days are July and August (0 days).

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

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

The month with the longest days is June (Average daylight: 15h and 18min).
The month with the shortest days is December (Average daylight: 9h and 6min).

  • Average sunshine in May: 10h and 2min

The month with the most sunshine is July (Average sunshine: 11h and 54min).
The month with the least sunshine is February (Average sunshine: 4h and 12min).

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Average sunshine days in May
Afton, WY

Average sunshine days in May - Afton, WY
  • Average sunshine days in May: 8.3 days

The month with the most sunshine days is July (18.8 days).
The month with the least sunshine days is April (7 days).

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Average UV index in May
Afton, WY

Average UV index in May - Afton, WY
  • Average UV index in May: 3

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

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Average cloud cover in May
Afton, WY

Average cloud cover in May - Afton, WY
  • Average cloud cover in May: 33

The month with the most cloud cover is February (Cloud cover 63).
The months with the least cloud cover are July and August (Cloud cover 12).

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Average visibility in May
Afton, WY

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

The months with the highest visibility are May, June, July, August, September and October (6mi).
The months with the lowest visibility are January and February (3mi).

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Afton, Wyoming, USA

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