May weather forecast
Amherst, WI

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Weather in May

The last month of the spring, May, is a comfortable month in Amherst, Wisconsin, with an average temperature fluctuating between 64.2°F (17.9°C) and 46.6°F (8.1°C).

Temperature

May's onset brings a temperature rise, moving from a fresh 50.9°F (10.5°C) in April to an enjoyable 64.2°F (17.9°C). Throughout May, Amherst witnesses a nighttime temperature average of 46.6°F (8.1°C).

Humidity

In May, the average relative humidity is 78%.

Rainfall

May is the month with the most rainfall. Rain falls for 15.8 days and accumulates 3.19" (81mm) of precipitation.

Snowfall

January through May, October through December are months with snowfall in Amherst, Wisconsin. May is the last month it regularly snows. During 0.2 snowfall days, in May, Amherst aggregates 0.04" (1mm) of snow. In Amherst, during the entire year, snow falls for 56.3 days and aggregates up to 21.38" (543mm) of snow.

Daylight

The average length of the day in May in Amherst is 14h and 49min.
On the first day of May in Amherst, sunrise is at 5:46 am and sunset at 8:01 pm. On the last day of the month, sunrise is at 5:15 am and sunset at 8:34 pm CDT.

Sunshine

The average sunshine in May is 8.7h.

UV index

The months with the highest UV index in Amherst, Wisconsin, are May through August, with an average maximum UV index of 5. A UV Index reading of 3 to 5 represents a medium health hazard from unprotected exposure to Sun's UV rays for average individuals.
Note: The maximum daily UV index of 5 in May converts into the following recommendations:
Put precautions into practice - Guidance to elude sunburn is provided. Direct exposure to the Sun during its peak hours around mid-day should be minimized for safety. Equip yourself with UVA and UVB-filtering sunglasses on clear, sunny days. Remember this! The UV radiation of the Sun can be nearly doubled by the reflective properties of snow.
Updated: Feb 14, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What are the temperatures in Amherst in May?

The high-temperature in Amherst, Wisconsin, during May is 64.2°F (17.9°C) and the low-temperature is 46.6°F (8.1°C).

What is the average humidity in May in Amherst?

In May, the average relative humidity in Amherst is 78%.

What is the rainiest month in Amherst?

May is the month with the most rainfall in Amherst. Rain falls for 15.8 days and accumulates 3.19" (81mm) of precipitation.

How much does it rain in Amherst in May?

In Amherst, during May, the rain falls for 15.8 days and regularly aggregates up to 3.19" (81mm) of precipitation.

What is the last month it snows in Amherst?

May is the last month it regularly snows in Amherst. During 0.2 snowfall days, in May, Amherst aggregates 0.04" (1mm) of snow.

How many hours of daylight does Amherst have in May?

The average day length in May is 14h and 49min.

When is the sunrise / sunset in May in Amherst?

On the first day of May, sunrise is at 5:46 am and sunset at 8:01 pm. On the last day of the month, sunrise is at 5:15 am and sunset at 8:34 pm CDT.

How many hours of sunshine does Amherst have in May?

The average sunshine duration in May in Amherst, Wisconsin, is 8.7h.

When is the highest UV index in Amherst?

May through August, with an average maximum UV index of 5, are months with the highest UV index.

How high is the UV index in May in Amherst?

In May, the average daily maximum UV index in Amherst is 5. A UV Index estimate of 3 to 5 represents a moderate vulnerability 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
Amherst, WI

Average temperature in May - Amherst, WI
  • Average high temperature in May: 64.2°F

The warmest month (with the highest average high temperature) is July (78.3°F).
The month with the lowest average high temperature is January (21.4°F).

  • Average low temperature in May: 46.6°F

The month with the highest average low temperature is July (60.1°F).
The coldest month (with the lowest average low temperature) is January (9.9°F).

Average pressure in May
Amherst, WI

Average pressure in May - Amherst, WI
  • Average pressure in May: 29.96"Hg

The month with the highest atmospheric pressure is February (30.1"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).

Average wind speed in May
Amherst, WI

Average wind speed in May - Amherst, WI
  • Average wind speed in May: 8.6mph

The windiest month (with the highest average wind speed) is April (9.9mph).
The calmest month (with the lowest average wind speed) is August (6.9mph).

Average humidity in May
Amherst, WI

Average humidity in May - Amherst, WI
  • Average humidity in May: 78%

The month with the highest relative humidity is January (90%).
The month with the lowest relative humidity is April (75%).

Average rainfall in May
Amherst, WI

Average rainfall in May - Amherst, WI
  • Average rainfall in May: 3.19"

The wettest month (with the highest rainfall) is May (3.19").
The driest month (with the least rainfall) is February (0.91").

Average rainfall days in May
Amherst, WI

Average rainfall days in May - Amherst, WI
  • Average rainfall days in May: 15.8 days

The month with the highest number of rainy days is May (15.8 days).
The month with the least rainy days is January (3.8 days).

Average snowfall in May
Amherst, WI

Average snowfall in May - Amherst, WI
  • Average snowfall in May: 0.04"

The month with the highest snowfall is January (5.04").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in May
Amherst, WI

Average snowfall days in May - Amherst, WI
  • Average snowfall days in May: 0.2 days

The month with the highest number of snowfall days is January (13.4 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average daylight in May /
Average sunshine in May
Amherst, WI

Average daylight in May / Average sunshine in May - Amherst, WI
  • Average daylight in May: 14h and 5min

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

  • Average sunshine in May: 8h and 4min

The month with the most sunshine is July (Average sunshine: 9h and 54min).
The month with the least sunshine is January (Average sunshine: 3h and 24min).

Average sunshine days in May
Amherst, WI

Average sunshine days in May - Amherst, WI
  • Average sunshine days in May: 12.9 days

The month with the most sunshine days is September (16.5 days).
The month with the least sunshine days is April (12.8 days).

Average UV index in May
Amherst, WI

Average UV index in May - Amherst, WI
  • Average UV index in May: 5

The months with the highest UV index are May, June, July and August (UV index 5).
The months with the lowest UV index are January, November and December (UV index 1).

Average cloud cover in May
Amherst, WI

Average cloud cover in May - Amherst, WI
  • Average cloud cover in May: 43

The month with the most cloud cover is January (Cloud cover 64).
The months with the least cloud cover are July and August (Cloud cover 33).

Average visibility in May
Amherst, WI

Average visibility in May - Amherst, WI
  • Average visibility in May: 6mi

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

Amherst, Wisconsin, USA

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