Contents
- Weather in May
- Frequently asked questions
- Average temperature in May
- Average pressure in May
- Average wind speed in May
- Average humidity in May
- Average rainfall in May
- Average rainfall days in May
- Average snowfall in May
- Average snowfall days in May
- Average daylight in May
- Average sunshine in May
- Average sunshine days in May
- Average UV index in May
- Average cloud cover in May
- Average visibility in May
Weather in May
Temperature
May brings a rise in Reardan's average high-temperature, moving from a fresh 54.9°F (12.7°C) in April to a refreshing 65.7°F (18.7°C). May, marked by an average low-temperature of 43.5°F (6.4°C), indicates a large temperature drop from the daytime peak.Humidity
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. In Reardan, during the entire year, the rain falls for 118 days and collects up to 15.24" (387mm) of precipitation.Snowfall
January through May, September through December are months with snowfall. May is the last month it regularly snows. 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
In May, the average length of the day is 15h and 10min.On the first day of May in Reardan, 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.
Sunshine
In Reardan, the average sunshine in May is 10.4h.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 exposure to the Sun's UV rays for average individuals.Note: An average UV index of 4 in May transforms into this advice:
Undertake protective steps - Obligation to safeguard skin and eyes from harm is in place. Limiting sun exposure during midday hours helps in reducing the harmful effects of UV radiation. Arm yourself against UV rays' harm with protective apparel and UV-filtering shades. Heads up! The UV radiation from the Sun can almost be doubled by snow reflection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are May temperatures?
What is the average humidity in May?
How many days does it rain in May?
What is the last month it snows?
What is the average length of the day in May?
When are sunrise and sunset in May?
How long on average sun shines in May?
What is the UV index intensity in May?
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).
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).
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).
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%).
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").
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).
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").
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).
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).
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).
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).
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).
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).
Reardan, Washington, USA
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