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 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
With the onset of May, Holtville experiences a subtle temperature shift, with the average high-temperature moving from a tropical 86.7°F (30.4°C) in April to a still hot 93.2°F (34°C). May nights in Holtville are characterized by a notable drop from daytime highs, with an average low-temperature of 67.3°F (19.6°C).Humidity
In Holtville, the average relative humidity in May is 25%.Rainfall
May is the month with the least rainfall in Holtville. Rain falls for 0.9 days and accumulates 0.04" (1mm) of precipitation.Daylight
The average length of the day in May in Holtville is 13h and 52min.On the first day of May, sunrise is at 5:53 am and sunset at 7:23 pm. On the last day of the month, sunrise is at 5:34 am and sunset at 7:44 pm PDT.
Sunshine
In Holtville, the average sunshine in May is 12h.UV index
The average daily maximum UV index in May is 8. A UV Index value of 8 to 10 symbolizes a very high threat to health from unsafe exposure to UV radiation for the ordinary person.Note: The maximum daily UV index of 8 during May translates into the following directions:
Always safeguard yourself; without protection, skin and eyes can get damaged instantly. Avoid direct exposure to the Sun between 10 a.m. and 4 p.m., the peak period for UV radiation, noting that objects like parasols or canopies might not offer complete sun protection. Stay sun-safe with clothing that is both closely woven and worn loosely.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How hot does it get in Holtville in May?
What is the average humidity in May in Holtville?
What is the driest month in Holtville?
How much does it rain in Holtville in May?
How many hours of daylight does Holtville have in May?
What time are sunrise and sunset in May in Holtville?
How long on average sun shines in May in Holtville?
What is the UV index reading in May in Holtville?
Average temperature in May
Holtville, CA
- Average high temperature in May: 93.2°F
The warmest month (with the highest average high temperature) is July (107.2°F).
The month with the lowest average high temperature is December (67.3°F).
- Average low temperature in May: 67.3°F
The month with the highest average low temperature is August (85.6°F).
The coldest month (with the lowest average low temperature) is January (50°F).
Average pressure in May
Holtville, CA
- Average pressure in May: 29.83"Hg
The month with the highest atmospheric pressure is January (30.08"Hg).
The month with the lowest atmospheric pressure is June (29.77"Hg).
Average wind speed in May
Holtville, CA
- Average wind speed in May: 7.5mph
The windiest month (with the highest average wind speed) is April (7.7mph).
The calmest months (with the lowest average wind speed) are January and August (5.5mph).
Average humidity in May
Holtville, CA
- Average humidity in May: 25%
The month with the highest relative humidity is December (39%).
The month with the lowest relative humidity is June (21%).
Average rainfall in May
Holtville, CA
- Average rainfall in May: 0.04"
The wettest month (with the highest rainfall) is July (0.55").
The driest month (with the least rainfall) is May (0.04").
Average rainfall days in May
Holtville, CA
- Average rainfall days in May: 0.9 days
The month with the highest number of rainy days is July (6.3 days).
The month with the least rainy days is May (0.9 days).
Average daylight in May /
Average sunshine in May
Holtville, CA
- Average daylight in May: 13h and 5min
The month with the longest days is June (Average daylight: 14h and 18min).
The month with the shortest days is December (Average daylight: 10h and 0min).
- Average sunshine in May: 12h and 0min
The month with the most sunshine is June (Average sunshine: 12h and 12min).
The month with the least sunshine is December (Average sunshine: 7h and 6min).
Average sunshine days in May
Holtville, CA
- Average sunshine days in May: 29.9 days
The month with the most sunshine days is May (29.9 days).
The month with the least sunshine days is July (21.8 days).
Average UV index in May
Holtville, CA
- Average UV index in May: 8
The months with the highest UV index are July and August (UV index 9).
The month with the lowest UV index is December (UV index 4).
Average cloud cover in May
Holtville, CA
- Average cloud cover in May: 6
The month with the most cloud cover is December (Cloud cover 17).
The month with the least cloud cover is June (Cloud cover 5).
Average visibility in May
Holtville, 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).
Holtville, California, USA
Weather forecast for your location
2. Allow the app to use your location