May weather forecast
Riddle, OR

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Weather in May

May, the last month of the spring in Riddle, is a refreshing month, with an average temperature fluctuating between 64.9°F (18.3°C) and 39°F (3.9°C).

Temperature

May introduces a minor temperature shift, with average high-temperatures adjusting from April's refreshing 57.4°F (14.1°C) to an enjoyable 64.9°F (18.3°C). Riddle registers a prominent dip from daytime highs, with an average of 39°F (3.9°C) during the nights of May.

Humidity

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

Rainfall

In Riddle, Oregon, during May, the rain falls for 8 days and regularly aggregates up to 0.59" (15mm) of precipitation. In Riddle, during the entire year, the rain falls for 93.9 days and collects up to 7.64" (194mm) of precipitation.

Snowfall

April through October are months without snowfall in Riddle.

Daylight

The average length of the day in May in Riddle, Oregon, is 14h and 41min.
On the first day of the month, sunrise is at 6:05 am and sunset at 8:14 pm. On the last day of May, sunrise is at 5:37 am and sunset at 8:45 pm PDT.

Sunshine

The average sunshine in May in Riddle, Oregon, is 8.7h.

UV index

In May, the average daily maximum UV index is 4. A UV Index of 3 to 5 symbolizes a moderate health risk from unprotected exposure to Sun's UV rays for ordinary individuals.
Note: The maximum daily UV index of 4 in May interprets into the following recommendations:
Guard yourself - Avoiding sunburn is suggested. The best time to avoid the Sun's harmful UV radiation is during midday when it's most potent. Your best bet for sun defense on the face, eyes, and neck is a hat with a wide brim.
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Frequently asked questions

What is the average May temperature in Riddle?

The average high-temperature, in May, in Riddle, is 64.9°F (18.3°C), while the average low-temperature is 39°F (3.9°C).

What is the average humidity in May in Riddle?

The average relative humidity in May in Riddle, Oregon, is 78%.

How much does it rain in Riddle in May?

In Riddle, in May, it is raining for 8 days, with typically 0.59" (15mm) of accumulated precipitation.

When it does not snow in Riddle?

In Riddle, snow does not fall in April through October.

How many hours of daylight does Riddle have in May?

In May, the average day length in Riddle, Oregon, is 14h and 41min.

When are sunrise and sunset in May in Riddle?

On the first day of May in Riddle, sunrise is at 6:05 am and sunset at 8:14 pm. On the last day of the month, sunrise is at 5:37 am and sunset at 8:45 pm PDT.

How many hours of sunshine does Riddle have in May?

In May, the average sunshine duration in Riddle, Oregon, is 8.7h.

What is the UV index reading in May in Riddle?

In May, the average daily maximum UV index is 4. A UV Index reading of 3 to 5 represents a moderate health threat from exposure to the Sun's 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
Riddle, OR

Average temperature in May - Riddle, OR
  • Average high temperature in May: 64.9°F

The warmest month (with the highest average high temperature) is August (81.1°F).
The month with the lowest average high temperature is December (45.7°F).

  • Average low temperature in May: 39°F

The month with the highest average low temperature is August (47.7°F).
The coldest month (with the lowest average low temperature) is December (32.2°F).

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Average pressure in May
Riddle, OR

Average pressure in May - Riddle, OR
  • Average pressure in May: 30.03"Hg

The month with the highest atmospheric pressure is January (30.12"Hg).
The month with the lowest atmospheric pressure is August (30"Hg).

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Average wind speed in May
Riddle, OR

Average wind speed in May - Riddle, OR
  • Average wind speed in May: 3.7mph

The windiest month (with the highest average wind speed) is January (4.1mph).
The calmest month (with the lowest average wind speed) is September (3.2mph).

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Average humidity in May
Riddle, OR

Average humidity in May - Riddle, OR
  • Average humidity in May: 78%

The months with the highest relative humidity are January, February and December (86%).
The month with the lowest relative humidity is August (69%).

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Average rainfall in May
Riddle, OR

Average rainfall in May - Riddle, OR
  • Average rainfall in May: 0.59"

The wettest months (with the highest rainfall) are January, February and December (1.1").
The driest months (with the least rainfall) are July and August (0.16").

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Average rainfall days in May
Riddle, OR

Average rainfall days in May - Riddle, OR
  • Average rainfall days in May: 8 days

The month with the highest number of rainy days is March (12.6 days).
The month with the least rainy days is August (2.4 days).

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Average snowfall in May
Riddle, OR

Average snowfall in May - Riddle, OR
  • Average snowfall in May: 0"

The month with the highest snowfall is February (0.87").
The months with the least snowfall are April, May, June, July, August, September and October (0").

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Average snowfall days in May
Riddle, OR

Average snowfall days in May - Riddle, OR
  • Average snowfall days in May: 0 days

The month with the highest number of snowfall days is February (1.5 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).

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Average daylight in May /
Average sunshine in May
Riddle, OR

Average daylight in May / Average sunshine in May - Riddle, OR
  • 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: 8h and 4min

The month with the most sunshine is August (Average sunshine: 11h and 18min).
The month with the least sunshine is December (Average sunshine: 4h and 18min).

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Average sunshine days in May
Riddle, OR

Average sunshine days in May - Riddle, OR
  • Average sunshine days in May: 20.6 days

The month with the most sunshine days is August (26.5 days).
The month with the least sunshine days is March (16.1 days).

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Average UV index in May
Riddle, OR

Average UV index in May - Riddle, OR
  • Average UV index in May: 4

The month with the highest UV index is July (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
Riddle, OR

Average cloud cover in May - Riddle, OR
  • Average cloud cover in May: 49

The month with the most cloud cover is March (Cloud cover 60).
The month with the least cloud cover is August (Cloud cover 25).

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Average visibility in May
Riddle, OR

Average visibility in May - Riddle, OR
  • Average visibility in May: 4mi

The months with the highest visibility are July, August and September (5mi).
The months with the lowest visibility are January, February, March, April, May, June, October, November and December (4mi).

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Riddle, Oregon, USA

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