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, Thornton's average high-temperature sees a modest rise, moving from April's pleasant 69.8°F (21°C) to a moderately hot 77.7°F (25.4°C). From the heights of the May heat, Thornton records a mean nighttime low of 51.1°F (10.6°C).Humidity
In May, the average relative humidity in Thornton is 58%.Rainfall
In Thornton, during May, the rain falls for 4.8 days and regularly aggregates up to 0.71" (18mm) of precipitation. Throughout the year, there are 63.8 rainfall days, and 12.6" (320mm) of precipitation is accumulated.Snowfall
In Thornton, snow does not fall in January through November.Daylight
In May, the average length of the day in Thornton, California, is 14h and 16min.On the first day of the month, sunrise is at 6:07 am and sunset at 7:57 pm. On the last day of May, sunrise is at 5:44 am and sunset at 8:22 pm PDT.
Sunshine
The average sunshine in May in Thornton is 11.2h.UV index
In May, the average daily maximum UV index is 5. A UV Index estimate of 3 to 5 represents a moderate threat to health from exposure to the Sun's UV rays for the average person.Note: The maximum UV index of 5 during May leads to these instructions:
Take precautions - Protection against sunburn is recommended. Sun exposure should be minimized, especially during midday, to avoid harmful UV radiation. For excellent sun protection for the eyes, ears, face, and neck, consider a wide-brim hat.
Frequently asked questions
What is the temperature in May in Thornton?
What is the average humidity in May in Thornton?
How much does it rain in Thornton in May?
When it does not snow in Thornton?
How many hours of daylight does Thornton have in May?
When is the sunrise / sunset in May in Thornton?
How many hours of sunshine does Thornton have in May?
How high is the UV index in May in Thornton?
Average temperature in May
Thornton, 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
Thornton, 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
Thornton, 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
Thornton, 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
Thornton, 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
Thornton, 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
Thornton, 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
Thornton, 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
Thornton, 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
Thornton, 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
Thornton, 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
Thornton, 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).
Thornton, California, USA
Weather forecast for your location
2. Allow the app to use your location
