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 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
The shift from April to May is marked by a slight increase in the average high-temperature, moving from an agreeable 69.4°F (20.8°C) to a moderately hot 77.5°F (25.3°C). Nighttime temperatures exhibit a substantial dip from daytime highs during May, averaging at a fresh 52.7°F (11.5°C).Humidity
The average relative humidity in May is 57%.Rainfall
In May, the rain falls for 5.7 days. Throughout May, 1.14" (29mm) of precipitation is accumulated. In Rio Oso, during the entire year, the rain falls for 78.2 days and collects up to 20.43" (519mm) of precipitation.Snowfall
In Rio Oso, snow does not fall in January through November.Daylight
In Rio Oso, the average length of the day in May is 14h and 19min.On the first day of the month, sunrise is at 6:07 am and sunset at 7:59 pm. On the last day of May, sunrise is at 5:42 am and sunset at 8:25 pm PDT.
Sunshine
In Rio Oso, the average sunshine in May is 10.8h.UV index
In May, the average daily maximum UV index is 5. A UV Index reading of 3 to 5 represents a moderate threat to health from unprotected exposure to Sun's UV rays for average individuals.Note: In May, a daily maximum UV index of 5 leads to the following instructions:
Guard yourself - Avoiding sunburn is suggested. Minimize direct exposure to the Sun during midday when its radiation is at its peak. During bright days, sunglasses that offer UVA and UVB defense are recommended.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the average May temperature?
What is the average humidity in May?
How much does it rain in May?
When it does not snow?
How many hours of daylight does Rio Oso have in May?
When are sunrise and sunset in May in Rio Oso?
How long on average sun shines in May?
What is the UV index reading in May?
Average temperature in May
Rio Oso, CA
- Average high temperature in May: 77.5°F
The warmest month (with the highest average high temperature) is July (95.4°F).
The month with the lowest average high temperature is December (54.3°F).
- Average low temperature in May: 52.7°F
The month with the highest average low temperature is July (61.3°F).
The coldest months (with the lowest average low temperature) are January and December (40.6°F).
Average pressure in May
Rio Oso, CA
- Average pressure in May: 29.95"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.9"Hg).
Average wind speed in May
Rio Oso, CA
- Average wind speed in May: 6.2mph
The windiest months (with the highest average wind speed) are March and May (6.2mph).
The calmest month (with the lowest average wind speed) is November (4.8mph).
Average humidity in May
Rio Oso, CA
- Average humidity in May: 57%
The month with the highest relative humidity is March (75%).
The month with the lowest relative humidity is July (39%).
Average rainfall in May
Rio Oso, CA
- Average rainfall in May: 1.14"
The wettest month (with the highest rainfall) is March (3.9").
The driest months (with the least rainfall) are July and August (0.04").
Average rainfall days in May
Rio Oso, CA
- Average rainfall days in May: 5.7 days
The month with the highest number of rainy days is March (14.3 days).
The month with the least rainy days is July (1 days).
Average snowfall days in May
Rio Oso, CA
- Average snowfall days in May: 0 days
The month with the highest number of snowfall days is December (0.1 days).
The months with the least snowfall days are January, February, March, April, May, June, July, August, September, October and November (0 days).
Average daylight in May /
Average sunshine in May
Rio Oso, CA
- Average daylight in May: 14h and 2min
The month with the longest days is June (Average daylight: 14h and 54min).
The month with the shortest days is December (Average daylight: 9h and 30min).
- Average sunshine in May: 10h and 5min
The month with the most sunshine is July (Average sunshine: 12h and 6min).
The month with the least sunshine is December (Average sunshine: 5h and 30min).
Average sunshine days in May
Rio Oso, CA
- Average sunshine days in May: 24.2 days
The month with the most sunshine days is July (30 days).
The month with the least sunshine days is March (16.1 days).
Average UV index in May
Rio Oso, CA
- Average UV index in May: 5
The months with the highest UV index are June and July (UV index 7).
The months with the lowest UV index are January, February, November and December (UV index 3).
Average cloud cover in May
Rio Oso, CA
- Average cloud cover in May: 22
The month with the most cloud cover is March (Cloud cover 41).
The month with the least cloud cover is July (Cloud cover 4).
Average visibility in May
Rio Oso, CA
- Average visibility in May: 6mi
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
Rio Oso, California, USA
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