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
With the onset of May, Herald's weather sees a minor temperature rise, transitioning from an agreeable 69.8°F (21°C) in April to a warm 77.7°F (25.4°C). Herald demonstrates a significant disparity from daytime highs throughout the month of May, with an average nighttime temperature of 51.1°F (10.6°C).Humidity
In Herald, California, the average relative humidity in May is 58%.Rainfall
In Herald, California, in May, during 4.8 rainfall days, 0.71" (18mm) of precipitation is typically accumulated. Throughout the year, there are 63.8 rainfall days, and 12.6" (320mm) of precipitation is accumulated.Snowfall
In Herald, snow does not fall in January through November.Daylight
In Herald, the average length of the day in May is 14h and 16min.On the first day of May in Herald, sunrise is at 6:07 am and sunset at 7:56 pm. On the last day of the month, sunrise is at 5:43 am and sunset at 8:22 pm PDT.
Sunshine
In Herald, the average sunshine in May is 11.2h.UV index
In May, the average daily maximum UV index is 5. A UV Index value of 3 to 5 symbolizes a moderate health risk from exposure to the Sun's UV rays for the ordinary person.Note: A daily high UV index of 5 in May leads to these guidelines:
Ensure safety - Recommendations to avert sunburn are presented. Avoiding the Sun during its peak radiation time around midday is a healthy practice. Sunglasses that ward off UVA and UVB rays play a pivotal role in reducing solar eye damage.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the usual temperature for Herald in May?
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 Herald have in May?
What time are sunrise and sunset in May?
How many hours of sunshine does Herald have in May?
What is the UV index reading in May?
Average temperature in May
Herald, CA
- Average high temperature in May: 77.7°F
The warmest month (with the highest average high temperature) is July (93.9°F).
The month with the lowest average high temperature is December (55°F).
- Average low temperature in May: 51.1°F
The month with the highest average low temperature is August (58.8°F).
The coldest month (with the lowest average low temperature) is December (41°F).
Average pressure in May
Herald, CA
- Average pressure in May: 29.96"Hg
The month with the highest atmospheric pressure is January (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).
Average wind speed in May
Herald, CA
- Average wind speed in May: 5.7mph
The windiest months (with the highest average wind speed) are February and June (5.8mph).
The calmest month (with the lowest average wind speed) is November (4.4mph).
Average humidity in May
Herald, CA
- Average humidity in May: 58%
The month with the highest relative humidity is March (75%).
The month with the lowest relative humidity is July (45%).
Average rainfall in May
Herald, CA
- Average rainfall in May: 0.71"
The wettest month (with the highest rainfall) is February (2.4").
The driest months (with the least rainfall) are July and August (0.04").
Average rainfall days in May
Herald, CA
- Average rainfall days in May: 4.8 days
The month with the highest number of rainy days is March (12.4 days).
The month with the least rainy days is June (0.9 days).
Average snowfall days in May
Herald, 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
Herald, CA
- Average daylight in May: 14h and 2min
The month with the longest days is June (Average daylight: 14h and 48min).
The month with the shortest days is December (Average daylight: 9h and 36min).
- Average sunshine in May: 11h and 1min
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 54min).
Average sunshine days in May
Herald, CA
- Average sunshine days in May: 25.5 days
The month with the most sunshine days is August (29.3 days).
The month with the least sunshine days is March (17.8 days).
Average UV index in May
Herald, CA
- Average UV index in May: 5
The month with the highest UV index is June (UV index 7).
The months with the lowest UV index are January, February, November and December (UV index 3).
Average cloud cover in May
Herald, CA
- Average cloud cover in May: 19
The month with the most cloud cover is March (Cloud cover 35).
The month with the least cloud cover is July (Cloud cover 4).
Average visibility in May
Herald, 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).
Herald, California, USA
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