May weather forecast
Reardan, WA

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Weather in May

May, the last month of the spring in Reardan, is an enjoyable month, with temperature in the range of an average high of 65.7°F (18.7°C) and an average low of 43.5°F (6.4°C).

Temperature

With the arrival of May, the average high-temperature transitions from a cool 54.9°F (12.7°C) in April to an enjoyable 65.7°F (18.7°C). Throughout May, Reardan acknowledges a distinct difference between its daytime highs and the steady low average of 43.5°F (6.4°C).

Humidity

In Reardan, Washington, the average relative humidity in May is 62%.

Rainfall

In Reardan, in May, it is raining for 11.8 days, with typically 1.42" (36mm) of accumulated precipitation. Throughout the year, there are 118 rainfall days, and 15.24" (387mm) of precipitation is accumulated.

Snowfall

Months with snowfall in Reardan are January through May, September through December. May is the last month it regularly snows in Reardan. During 0.3 snowfall days, in May, Reardan aggregates 0.08" (2mm) of snow. Throughout the year, there are 60.5 snowfall days, and 36.18" (919mm) of snow is accumulated.

Daylight

The average length of the day in May is 15h and 10min.
On the first day of the month, sunrise is at 5:32 am and sunset at 8:04 pm. On the last day of May, sunrise is at 4:57 am and sunset at 8:41 pm PDT.

Sunshine

In May, the average sunshine is 10.4h.

UV index

In May, the average daily maximum UV index in Reardan is 4. A UV Index estimate of 3 to 5 represents a medium vulnerability from exposure to the Sun's UV rays for the average person.
Note: In May, the maximum UV index of 4 suggests these recommendations:
Ensure safety - Recommendations to avert sunburn are presented. The Sun's harshest UV rays are around midday; it's wise to seek shade and limit time outdoors. A hat with a broad brim is indispensable, filtering out up to half of UV rays. Guard yourself! Snow reflection can almost double the UV radiation from the Sun.
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Frequently asked questions

What is the usual temperature for Reardan in May?

The average high-temperature, in May, in Reardan, is 65.7°F (18.7°C), while the average low-temperature is 43.5°F (6.4°C).

What is the average humidity in May in Reardan?

In Reardan, Washington, the average relative humidity in May is 62%.

How much does it rain in Reardan in May?

In May, the rain falls for 11.8 days. Throughout May, 1.42" (36mm) of precipitation is accumulated.

What is the last month it snows in Reardan?

May is the last month it regularly snows. During 0.3 snowfall days, in May, Reardan aggregates 0.08" (2mm) of snow.

How many hours of daylight does Reardan have in May?

The average day length in May is 15h and 10min.

When is the sunrise / sunset in May in Reardan?

On the first day of May, sunrise is at 5:32 am and sunset at 8:04 pm. On the last day of the month, sunrise is at 4:57 am and sunset at 8:41 pm PDT.

How long on average sun shines in May in Reardan?

In Reardan, Washington, the average sunshine duration in May is 10.4h.

What is the UV index reading in May in Reardan?

In Reardan, the average daily maximum UV index in May is 4. A UV Index of 3 to 5 symbolizes a moderate health threat from exposure to Sun's UV rays.
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
Reardan, WA

Average temperature in May - Reardan, WA
  • Average high temperature in May: 65.7°F

The warmest months (with the highest average high temperature) are July and August (83.7°F).
The month with the lowest average high temperature is December (31.5°F).

  • Average low temperature in May: 43.5°F

The month with the highest average low temperature is August (59.2°F).
The coldest month (with the lowest average low temperature) is December (22.1°F).

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Average pressure in May
Reardan, WA

Average pressure in May - Reardan, WA
  • Average pressure in May: 29.94"Hg

The month with the highest atmospheric pressure is January (30.19"Hg).
The month with the lowest atmospheric pressure is August (29.9"Hg).

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Average wind speed in May
Reardan, WA

Average wind speed in May - Reardan, WA
  • Average wind speed in May: 6.7mph

The windiest months (with the highest average wind speed) are March and April (7.6mph).
The calmest month (with the lowest average wind speed) is August (5.9mph).

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Average humidity in May
Reardan, WA

Average humidity in May - Reardan, WA
  • Average humidity in May: 62%

The month with the highest relative humidity is January (90%).
The month with the lowest relative humidity is August (38%).

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Average rainfall in May
Reardan, WA

Average rainfall in May - Reardan, WA
  • Average rainfall in May: 1.42"

The wettest months (with the highest rainfall) are January and December (1.93").
The driest month (with the least rainfall) is August (0.28").

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Average rainfall days in May
Reardan, WA

Average rainfall days in May - Reardan, WA
  • Average rainfall days in May: 11.8 days

The month with the highest number of rainy days is April (14.8 days).
The month with the least rainy days is July (4.6 days).

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Average snowfall in May
Reardan, WA

Average snowfall in May - Reardan, WA
  • Average snowfall in May: 0.08"

The month with the highest snowfall is January (10.08").
The months with the least snowfall are June, July and August (0").

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Average snowfall days in May
Reardan, WA

Average snowfall days in May - Reardan, WA
  • Average snowfall days in May: 0.3 days

The month with the highest number of snowfall days is December (15.3 days).
The months with the least snowfall days are June, July and August (0 days).

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

Average daylight in May / Average sunshine in May - Reardan, WA
  • Average daylight in May: 15h and 1min

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

  • Average sunshine in May: 10h and 2min

The month with the most sunshine is August (Average sunshine: 12h and 0min).
The month with the least sunshine is December (Average sunshine: 4h and 0min).

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Average sunshine days in May
Reardan, WA

Average sunshine days in May - Reardan, WA
  • Average sunshine days in May: 16.9 days

The month with the most sunshine days is July (24.5 days).
The month with the least sunshine days is March (11.1 days).

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Average UV index in May
Reardan, WA

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

The month with the highest UV index is July (UV index 7).
The months with the lowest UV index are November and December (UV index 1).

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Average cloud cover in May
Reardan, WA

Average cloud cover in May - Reardan, WA
  • Average cloud cover in May: 32

The month with the most cloud cover is January (Cloud cover 59).
The months with the least cloud cover are July and August (Cloud cover 12).

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Average visibility in May
Reardan, WA

Average visibility in May - Reardan, WA
  • 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 and December (4mi).

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Reardan, Washington, USA

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