Contents
- Weather in December
- Frequently asked questions
- Average temperature in December
- Average pressure in December
- Average wind speed in December
- Average humidity in December
- Average rainfall in December
- Average rainfall days in December
- Average daylight in December
- Average sunshine in December
- Average sunshine days in December
- Average UV index in December
- Average cloud cover in December
- Average visibility in December
Weather in December
Temperature
The coldest temperatures occur during December, when averages reach a peak of 56.3°F (13.5°C) and a low of 41°F (5°C).Humidity
The average relative humidity in December is 70%.Rainfall
December is the month with the most rainfall. Rain falls for 5.5 days and accumulates 0.83" (21mm) of precipitation.Daylight
With an average of 9h and 36min of daylight, December has the shortest days of the year in Gustine.On the first day of December, sunrise is at 6:59 am and sunset at 4:46 pm. On the last day of the month, sunrise is at 7:17 am and sunset at 4:56 pm PST.
Sunshine
The month with the least sunshine is December, with an average of 6.3h of sunshine.UV index
January, February, November and December, with an average maximum UV index of 3, are months with the lowest UV index in Gustine. A UV Index of 3 to 5 symbolizes a medium vulnerability from exposure to the Sun's UV radiation for ordinary individuals.Note: The UV index of 3 in December translates into these instructions:
Put precautions into practice - Ensuring skin and eye safety is a necessity. Protect yourself from the midday Sun's peak UV radiation by minimizing exposure. For excellent sun protection for the eyes, ears, face, and neck, consider a wide-brim hat.
Frequently asked questions
What month is the coldest in Gustine?
What is the usual temperature for Gustine in December?
What is the average humidity in December in Gustine?
What is the rainiest month in Gustine?
How many days does it rain in December in Gustine?
What is the month with the shortest days in Gustine?
What is the average length of the day in December in Gustine?
What time are sunrise and sunset in December in Gustine?
What is the month with the least sunshine in Gustine?
How many hours of sunshine does Gustine have in December?
When is the lowest UV index in Gustine?
How high is the UV index in December in Gustine?
Average temperature in December
Gustine, CA
- Average high temperature in December: 56.3°F
The warmest month (with the highest average high temperature) is July (96.4°F).
The month with the lowest average high temperature is December (56.3°F).
- Average low temperature in December: 41°F
The months with the highest average low temperature are July and August (61.9°F).
The coldest month (with the lowest average low temperature) is December (41°F).
Average pressure in December
Gustine, CA
- Average pressure in December: 30.12"Hg
The month with the highest atmospheric pressure is January (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).
Average wind speed in December
Gustine, CA
- Average wind speed in December: 4.7mph
The windiest month (with the highest average wind speed) is June (7.1mph).
The calmest month (with the lowest average wind speed) is January (4.4mph).
Average humidity in December
Gustine, CA
- Average humidity in December: 70%
The month with the highest relative humidity is January (71%).
The month with the lowest relative humidity is July (38%).
Average rainfall in December
Gustine, CA
- Average rainfall in December: 0.83"
The wettest month (with the highest rainfall) is December (0.83").
The driest months (with the least rainfall) are June, August and September (0.04").
Average rainfall days in December
Gustine, CA
- Average rainfall days in December: 5.5 days
The month with the highest number of rainy days is March (6.6 days).
The month with the least rainy days is June (0.7 days).
Average daylight in December /
Average sunshine in December
Gustine, CA
- Average daylight in December: 9h and 4min
The month with the longest days is June (Average daylight: 14h and 42min).
The month with the shortest days is December (Average daylight: 9h and 36min).
- Average sunshine in December: 6h and 2min
The month with the most sunshine is July (Average sunshine: 12h and 12min).
The month with the least sunshine is December (Average sunshine: 6h and 18min).
Average sunshine days in December
Gustine, CA
- Average sunshine days in December: 24.5 days
The month with the most sunshine days is August (29.3 days).
The month with the least sunshine days is February (22.3 days).
Average UV index in December
Gustine, CA
- Average UV index in December: 3
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 December
Gustine, CA
- Average cloud cover in December: 31
The months with the most cloud cover are March and December (Cloud cover 31).
The months with the least cloud cover are July and August (Cloud cover 4).
Average visibility in December
Gustine, CA
- Average visibility in December: 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).
Gustine, California, USA
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