May weather forecast
Ephraim, WI

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Weather in May

May brings about marked changes in the weather pattern of Ephraim.The warmth of spring further escalates, turning the days warmer and nights milder. The rain continues to pour down in greater force with rainfall reaching up to 2.8". This increment in the rainfall gives way to a higher relative humidity during this month. May showcases a blend of warmer days and increased rainfall along with an expected rise in humidity.

Temperature

With the onset of May, Ephraim's weather sees a minor temperature rise, transitioning from an icy 41.7°F in April to a cool 50°F. During the nights of May, Ephraim records an average temperature of 42.6°F, a minor drop from daytime peaks.

Humidity

In Ephraim, the average relative humidity in May is 80%.

Rainfall

In May, in Ephraim, the rain falls for 15.1 days. Throughout May, 2.8" of precipitation is accumulated. Throughout the year, in Ephraim, there are 141.7 rainfall days, and 26.93" of precipitation is accumulated.

Snowfall

January through May, October through December are months with snowfall in Ephraim. May is the last month it regularly snows in Ephraim. During 0.5 snowfall days, in May, Ephraim aggregates 0.08" of snow. Throughout the year, in Ephraim, there are 62.3 snowfall days, and 15.83" of snow is accumulated.

Ocean temperature

In Ephraim, the average seawater temperature in May is 39.2°F.
Note: In the course of swimming, this situation is life-threatening and fraught with risk. The severe cold of the water leads to immediate hyperventilation. Wearing a specialized swimsuit is critical to limit thermal injury.

Daylight

The average length of the day in May in Ephraim is 14h and 53min.
On the first day of the month, sunrise is at 5:37 am and sunset at 7:54 pm. On the last day of May, in Ephraim, sunrise is at 5:05 am and sunset at 8:27 pm CDT.

Sunshine

The average sunshine in May in Ephraim is 9.3h.

UV index

In May, the average daily maximum UV index is 4. A UV Index value of 3 to 5 symbolizes a moderate threat to health from unsafe exposure to UV radiation for the average person.
Note: The daily maximum UV index of 4 in May interprets into the following advice:
Heed the precautions - It is counselled to guard against solar damage. For health reasons, it's advisable to reduce direct sun exposure during peak hours around midday. It's wise to wear UVA and UVB-blocking sunglasses when the sun shines brightly. Stay alert! Snow's reflective properties can almost double the UV radiation from the Sun.
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Frequently asked questions

What is the temperature in May in Ephraim?

In May, the average high-temperature and low-temperature are 50°F and 42.6°F respectively.

What is the average humidity in May in Ephraim?

In May, the average relative humidity in Ephraim is 80%.

How many days does it rain in May in Ephraim?

In Ephraim, in May, during 15.1 rainfall days, 2.8" of precipitation is typically accumulated.

What is the last month it snows in Ephraim?

May is the last month it regularly snows in Ephraim, Wisconsin. During 0.5 snowfall days, in May, Ephraim aggregates 0.08" of snow.

How cold is the water in May in Ephraim?

In Ephraim, in May, the average water temperature is 39.2°F. For swimming, this is considered life-threatening and very dangerous. The water feels painfully cold, and hyperventilation quickly occurs. A specialized swimsuit is mandatory to reduce thermal damage.

How many hours of daylight does Ephraim have in May?

In May, the average day length in Ephraim is 14h and 53min.

What time are sunrise and sunset in May in Ephraim?

On the first day of May in Ephraim, sunrise is at 5:37 am and sunset at 7:54 pm. On the last day of the month, sunrise is at 5:05 am and sunset at 8:27 pm CDT.

How many hours of sunshine does Ephraim have in May?

The average sunshine duration in May in Ephraim is 9.3h.

What is the UV index reading in May in Ephraim?

In Ephraim, the average daily maximum UV index in May is 4. A UV Index value of 3 to 5 symbolizes a medium health risk from exposure to Sun's UV rays.
Today
Tomorrow
Long-term
YearJFMAMayJJASOND
Apr
May
Jun
Average high temperature
41.7°F
50°F
57.7°F
Average low temperature
35.1°F
42.6°F
50.9°F
Average pressure
29.97"Hg
29.97"Hg
29.91"Hg
Average wind speed
13.2mph
11mph
9.6mph
Average max. wind speed
14mph
11.8mph
10.3mph
Average wind speed gusts
22.7mph
21.6mph
19.4mph
Average humidity
79%
80%
84%
Average rainfall
2.56"
2.8"
2.68"
Average rainfall days
13.8
15.1
14.5
Average snowfall
1.1"
0.08"
0"
Average snowfall days
4.3
0.5
0
Average sea temperature
36°F
39°F
45°F
Average daylight
13h 3min
14h 5min
15h 4min
Average sunshine
7h 5min
9h 2min
9h 5min
Average sunshine days
12.3
13.8
13.1
Average UV index
2
4
4
Average cloud cover
49%
39%
34%
Average visibility
6mi
6mi
6mi

Average temperature in May
Ephraim, WI

Average temperature in May - Ephraim, WI
  • Average high temperature in May: 50°F

The warmest month (with the highest average high temperature) is August (69.6°F).
The month with the lowest average high temperature is January (25.2°F).

  • Average low temperature in May: 42.6°F

The month with the highest average low temperature is August (63°F).
The coldest month (with the lowest average low temperature) is January (18.1°F).

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Average pressure in May
Ephraim, WI

Average pressure in May - Ephraim, WI
  • Average pressure in May: 29.97"Hg

The month with the highest atmospheric pressure is March (30.09"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).

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Average wind speed in May
Ephraim, WI

Average wind speed in May - Ephraim, WI
  • Average wind speed in May: 11mph

The windiest month (with the highest average wind speed) is December (15.5mph).
The calmest months (with the lowest average wind speed) are June and July (9.6mph).

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Average humidity in May
Ephraim, WI

Average humidity in May - Ephraim, WI
  • Average humidity in May: 80%

The months with the highest relative humidity are January and June (84%).
The month with the lowest relative humidity is November (76%).

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Average rainfall in May
Ephraim, WI

Average rainfall in May - Ephraim, WI
  • Average rainfall in May: 2.8"

The wettest month (with the highest rainfall) is October (3.07").
The driest months (with the least rainfall) are January and February (1.38").

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Average rainfall days in May
Ephraim, WI

Average rainfall days in May - Ephraim, WI
  • Average rainfall days in May: 15.1 days

The month with the highest number of rainy days is August (15.6 days).
The month with the least rainy days is February (4.8 days).

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Average snowfall in May
Ephraim, WI

Average snowfall in May - Ephraim, WI
  • Average snowfall in May: 0.08"

The month with the highest snowfall is February (4.49").
The months with the least snowfall are June, July, August and September (0").

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Average snowfall days in May
Ephraim, WI

Average snowfall days in May - Ephraim, WI
  • Average snowfall days in May: 0.5 days

The month with the highest number of snowfall days is January (14.6 days).
The months with the least snowfall days are June, July, August and September (0 days).

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Average sea temperature in May
Ephraim, WI

Average sea temperature in May - Ephraim, WI
  • Average sea temperature in May: 39°F

The best month for swimming (with the highest average sea temperature) is August (64°F).
The coldest months (with the lowest average sea temperature) are March and April (36°F).

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

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

The month with the longest days is June (Average daylight: 15h and 36min).
The month with the shortest days is December (Average daylight: 8h and 48min).

  • Average sunshine in May: 9h and 2min

The month with the most sunshine is July (Average sunshine: 10h and 36min).
The month with the least sunshine is January (Average sunshine: 3h and 6min).

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Average sunshine days in May
Ephraim, WI

Average sunshine days in May - Ephraim, WI
  • Average sunshine days in May: 13.8 days

The month with the most sunshine days is September (15.1 days).
The month with the least sunshine days is January (8.3 days).

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Average UV index in May
Ephraim, WI

Average UV index in May - Ephraim, WI
  • Average UV index in May: 4

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

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Average cloud cover in May
Ephraim, WI

Average cloud cover in May - Ephraim, WI
  • Average cloud cover in May: 39

The month with the most cloud cover is January (Cloud cover 68).
The months with the least cloud cover are July and August (Cloud cover 28).

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Average visibility in May
Ephraim, WI

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

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

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Ephraim, Wisconsin, USA

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