May weather forecastHelendale, CA
May
Weather in May
The last month of the spring, May, is a moderately hot month in Helendale, California, with an average temperature varying between 76.5°F (24.7°C) and 53.4°F (11.9°C).Temperature
Helendale's transition into May is noticed by a slight rise in the average high-temperature, advancing from an agreeable 69.4°F (20.8°C) in April to a moderately hot 76.5°F (24.7°C). Helendale, in the heat of May, registers a significant plunge to a mean of 53.4°F (11.9°C) during the nights.Humidity
The average relative humidity in May is 39%.Rainfall
In Helendale, in May, during 2.1 rainfall days, 0.08" (2mm) of precipitation is typically accumulated. Throughout the year, there are 44.8 rainfall days, and 4.8" (122mm) of precipitation is accumulated.Snowfall
March, May through October are months without snowfall.Daylight
In May, the average length of the day is 14h and 0min.On the first day of May, sunrise is at 5:57 am and sunset at 7:34 pm. On the last day of the month, sunrise is at 5:37 am and sunset at 7:57 pm PDT.
Sunshine
In May, the average sunshine is 11.9h.UV index
In Helendale, the average daily maximum UV index in May is 6. A UV Index value of 6 to 7 symbolizes a high health hazard from unsafe exposure to UV radiation for average individuals.Note: A daily maximum UV index of 6 in May translates into the following instructions:
Exercise precautions and adapt sun safety practices. Defence against skin and eye affliction is paramount. During the period from 10 a.m. to 4 p.m., UV radiation is highest. Try to avoid direct sunlight during these hours. 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
Average temperature in May
Helendale, CA
- Average high temperature in May: 76.5°F
The warmest month (with the highest average high temperature) is July (92.1°F).
The month with the lowest average high temperature is December (53.2°F).
- Average low temperature in May: 53.4°F
The month with the highest average low temperature is August (68.5°F).
The coldest month (with the lowest average low temperature) is December (38.3°F).
Average pressure in May
Helendale, CA
- Average pressure in May: 29.88"Hg
The month with the highest atmospheric pressure is January (30.11"Hg).
The month with the lowest atmospheric pressure is June (29.83"Hg).
Average wind speed in May
Helendale, CA
- Average wind speed in May: 10.3mph
The windiest month (with the highest average wind speed) is May (10.3mph).
The calmest month (with the lowest average wind speed) is January (6.3mph).
Average humidity in May
Helendale, CA
- Average humidity in May: 39%
The month with the highest relative humidity is December (52%).
The month with the lowest relative humidity is August (27%).
Average rainfall in May
Helendale, CA
- Average rainfall in May: 0.08"
The wettest month (with the highest rainfall) is December (0.98").
The driest month (with the least rainfall) is June (0.04").
Average rainfall days in May
Helendale, CA
- Average rainfall days in May: 2.1 days
The month with the highest number of rainy days is March (6 days).
The month with the least rainy days is June (0.9 days).
Average snowfall in May
Helendale, CA
- Average snowfall in May: 0"
The month with the highest snowfall is November (1.73").
The months with the least snowfall are March, May, June, July, August, September and October (0").
Average snowfall days in May
Helendale, CA
- Average snowfall days in May: 0 days
The month with the highest number of snowfall days is February (1 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average daylight in May /
Average sunshine in May
Helendale, CA
- Average daylight in May: 14h and 0min
The month with the longest days is June (Average daylight: 14h and 30min).
The month with the shortest days is December (Average daylight: 9h and 54min).
- Average sunshine in May: 11h and 54min
The months with the most sunshine are June and July (Average sunshine: 12h and 6min).
The months with the least sunshine are January and December (Average sunshine: 7h and 0min).
Average sunshine days in May
Helendale, CA
- Average sunshine days in May: 28.1 days
The month with the most sunshine days is June (28.9 days).
The month with the least sunshine days is February (22.4 days).
Average UV index in May
Helendale, CA
- Average UV index in May: 6
The months with the highest UV index are June, July and August (UV index 7).
The months with the lowest UV index are January, February, November and December (UV index 3).
Average cloud cover in May
Helendale, CA
- Average cloud cover in May: 10
The month with the most cloud cover is December (Cloud cover 21).
The months with the least cloud cover are June and August (Cloud cover 5).
Average visibility in May
Helendale, 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).
