May weather forecast
Omak, WA

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Weather in May

The last month of the spring, May, is a comfortable month in Omak, Washington, with an average temperature fluctuating between 42.4°F (5.8°C) and 66°F (18.9°C).

Temperature

The beginning of May signals a rise in the average high-temperature, moving from a cool 54.3°F (12.4°C) in April to a comfortable 66°F (18.9°C). Omak experiences a significant contrast between daily highs and an average nighttime temperature of 42.4°F (5.8°C) during May.

Humidity

The average relative humidity in May in Omak is 56%.

Rainfall

In Omak, in May, it is raining for 8.6 days, with typically 0.91" (23mm) of accumulated precipitation. Throughout the year, in Omak, there are 90.2 rainfall days, and 7.56" (192mm) of precipitation is accumulated.

Snowfall

In Omak, snow does not fall in May through October.

Daylight

In Omak, the average length of the day in May is 15h and 15min.
On the first day of the month, sunrise is at 5:37 am and sunset at 8:13 pm. On the last day of May, sunrise is at 5:00 am and sunset at 8:50 pm PDT.

Sunshine

In Omak, Washington, the average sunshine in May is 11.2h.

UV index

The average daily maximum UV index in May is 4. A UV Index of 3 to 5 symbolizes a moderate health risk from unprotected exposure to Sun's UV rays for average individuals.
Note: The daily high UV index of 4 during May translates into the following recommendations:
Put precautions into practice - Ensuring skin and eye safety is a necessity. Given the potency of the midday Sun's UV radiation, one should avoid prolonged exposure. To cut down UV radiation exposure by about half, sport a wide-brim hat.
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Frequently asked questions

What are the temperatures in Omak in May?

The high-temperature, in May, in Omak, records 66°F (18.9°C), while the low-temperature is 42.4°F (5.8°C).

What is the average humidity in May in Omak?

In Omak, the average relative humidity in May is 56%.

How many days does it rain in May in Omak?

In Omak, during May, the rain falls for 8.6 days and regularly aggregates up to 0.91" (23mm) of precipitation.

When it does not snow in Omak?

In Omak, Washington, snow does not fall in May through October.

Does it snow in Omak in May?

In May, it doesn't snow. April is the latest month when it typically snows.

What is the average length of the day in May in Omak?

In May, the average day length in Omak is 15h and 15min.

When is the sunrise / sunset in May in Omak?

On the first day of May in Omak, sunrise is at 5:37 am and sunset at 8:13 pm. On the last day of the month, sunrise is at 5:00 am and sunset at 8:50 pm PDT.

How long on average sun shines in May in Omak?

The average sunshine duration in May is 11.2h.

How high is the UV index in May in Omak?

In May, the average daily maximum UV index in Omak is 4. A UV Index estimate of 3 to 5 represents a moderate health threat from unprotected exposure to UV radiation.
Average humidity
Average rainfall days
Average snowfall
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in May
Omak, WA

Average temperature in May - Omak, WA
  • Average high temperature in May: 66°F

The warmest month (with the highest average high temperature) is July (82.6°F).
The month with the lowest average high temperature is December (30.4°F).

  • Average low temperature in May: 42.4°F

The month with the highest average low temperature is August (55°F).
The coldest month (with the lowest average low temperature) is December (18.1°F).

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Average pressure in May
Omak, WA

Average pressure in May - Omak, WA
  • Average pressure in May: 29.95"Hg

The month with the highest atmospheric pressure is January (30.17"Hg).
The months with the lowest atmospheric pressure are June and August (29.93"Hg).

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Average wind speed in May
Omak, WA

Average wind speed in May - Omak, WA
  • Average wind speed in May: 4.8mph

The windiest month (with the highest average wind speed) is April (5.1mph).
The calmest month (with the lowest average wind speed) is January (4mph).

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Average humidity in May
Omak, WA

Average humidity in May - Omak, WA
  • Average humidity in May: 56%

The month with the highest relative humidity is January (91%).
The months with the lowest relative humidity are July and August (42%).

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Average rainfall in May
Omak, WA

Average rainfall in May - Omak, WA
  • Average rainfall in May: 0.91"

The wettest month (with the highest rainfall) is December (0.94").
The driest months (with the least rainfall) are July and August (0.2").

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Average rainfall days in May
Omak, WA

Average rainfall days in May - Omak, WA
  • Average rainfall days in May: 8.6 days

The month with the highest number of rainy days is March (11.5 days).
The month with the least rainy days is August (2.8 days).

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Average snowfall in May
Omak, WA

Average snowfall in May - Omak, WA
  • Average snowfall in May: 0"

The month with the highest snowfall is January (3.39").
The months with the least snowfall are May, June, July, August, September and October (0").

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Average snowfall days in May
Omak, WA

Average snowfall days in May - Omak, WA
  • Average snowfall days in May: 0 days

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

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Average daylight in May /
Average sunshine in May
Omak, WA

Average daylight in May / Average sunshine in May - Omak, WA
  • Average daylight in May: 15h and 2min

The month with the longest days is June (Average daylight: 16h and 0min).
The month with the shortest days is December (Average daylight: 8h and 24min).

  • Average sunshine in May: 11h and 1min

The months with the most sunshine are July and August (Average sunshine: 12h and 0min).
The month with the least sunshine is January (Average sunshine: 4h and 30min).

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Average sunshine days in May
Omak, WA

Average sunshine days in May - Omak, WA
  • Average sunshine days in May: 21.3 days

The month with the most sunshine days is August (26.3 days).
The month with the least sunshine days is November (15.4 days).

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Average UV index in May
Omak, WA

Average UV index in May - Omak, WA
  • Average UV index in May: 4

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

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Average cloud cover in May
Omak, WA

Average cloud cover in May - Omak, WA
  • Average cloud cover in May: 25

The month with the most cloud cover is January (Cloud cover 49).
The months with the least cloud cover are July and August (Cloud cover 12).

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Average visibility in May
Omak, WA

Average visibility in May - Omak, WA
  • Average visibility in May: 6mi

The months with the highest visibility are April, May, June, July, August, September and October (6mi).
The months with the lowest visibility are January, February and December (4mi).

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Omak, Washington, USA

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