December weather forecastHanford, CA

December

Weather in December

December, the first month of the winter in Hanford, is still a mild month, with an average temperature fluctuating between 57.4°F (14.1°C) and 42.4°F (5.8°C).

Temperature

December is the month that records the lowest temperatures, with averages ranging from a high of 57.4°F (14.1°C) to a low of 42.4°F (5.8°C).

Humidity

January and December, with an average relative humidity of 67%, are the most humid months in Hanford, California.

Rainfall

In Hanford, during December, the rain falls for 5.5 days and regularly aggregates up to 0.35" (9mm) of precipitation. In Hanford, California, during the entire year, the rain falls for 41.4 days and collects up to 3.19" (81mm) of precipitation.

Daylight

December has the shortest days of the year in Hanford, with an average of 9h and 42min of daylight.
On the first day of December, sunrise is at 6:52 am and sunset at 4:43 pm. On the last day of the month, sunrise is at 7:09 am and sunset at 4:54 pm PST.

Sunshine

December has the least sunshine of the year, with an average of 6.4h of sunshine.

UV index

The months with the lowest UV index are January, November and December, with an average maximum UV index of 3. A UV Index of 3 to 5 symbolizes a moderate threat to health from exposure to the Sun's UV rays for the average person.
Note: The UV index of 3 in December translates into these instructions:
Adopt protective measures - Requirement to safeguard skin and eyes from harm exists. The Sun is most powerful around mid-day, so it's a good practice to reduce direct exposure. Opt for tightly woven and loose clothing to enhance protection from the Sun.

Frequently asked questions

December is the coldest month in Hanford, with the temperature often reaching an average high of 57.4°F (14.1°C) and an average low of 42.4°F (5.8°C).

Hanford in December has an average high-temperature of 57.4°F (14.1°C) and an average low-temperature of 42.4°F (5.8°C). The average heat index (a.k.a. 'feels like', 'felt air temperature'), which combines air temperature and relative humidity, in May is computed to be 82.4°F (28°C).

January and December, with an average relative humidity of 67%, are most humid months in Hanford.

In December, the average relative humidity is 67%.

In Hanford, during December, the rain falls for 5.5 days and regularly aggregates up to 0.35" (9mm) of precipitation.

With an average of 9h and 42min of daylight, December has the shortest days of the year.

In December, the average day length is 9h and 44min.

In December, on the first day of the month, sunrise is at 6:52 am and sunset at 4:43 pm. On the last day of the month, in Hanford, California, sunrise is at 7:09 am and sunset at 4:54 pm PST.

December has the least sunshine of the year in Hanford, with an average of 6.4h of sunshine.

In December, the average sunshine duration in Hanford, California, is 6.4h.

January, November and December, with an average maximum UV index of 3, are months with the lowest UV index.

In December, the average daily maximum UV index in Hanford, California, is 3. A UV Index of 3 to 5 symbolizes a medium health risk from exposure to Sun's UV rays.
Average high temperature
Average low temperature
Average pressure
Average wind speed
Average max. wind speed
Average wind speed gusts
Average humidity
Average rainfall
Average rainfall days
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in December
Hanford, CA

  • Average high temperature in December: 57.4°F

The warmest month (with the highest average high temperature) is July (101.8°F).
The month with the lowest average high temperature is December (57.4°F).

  • Average low temperature in December: 42.4°F

The month with the highest average low temperature is July (66.2°F).
The coldest month (with the lowest average low temperature) is December (42.4°F).

Average pressure in December
Hanford, CA

  • Average pressure in December: 30.11"Hg

The month with the highest atmospheric pressure is January (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.89"Hg).

Average wind speed in December
Hanford, CA

  • Average wind speed in December: 4.2mph

The windiest month (with the highest average wind speed) is June (6.1mph).
The calmest months (with the lowest average wind speed) are January, November and December (4.2mph).

Average humidity in December
Hanford, CA

  • Average humidity in December: 67%

The months with the highest relative humidity are January and December (67%).
The month with the lowest relative humidity is July (30%).

Average rainfall in December
Hanford, CA

  • Average rainfall in December: 0.35"

The wettest month (with the highest rainfall) is March (0.63").
The driest month (with the least rainfall) is August (0.04").

Average rainfall days in December
Hanford, CA

  • Average rainfall days in December: 5.5 days

The month with the highest number of rainy days is March (7.4 days).
The month with the least rainy days is August (0.4 days).

Average daylight in December /
Average sunshine in December
Hanford, CA

  • Average daylight in December: 9h and 42min

The month with the longest days is June (Average daylight: 14h and 36min).
The month with the shortest days is December (Average daylight: 9h and 42min).

  • Average sunshine in December: 6h and 24min

The months with the most sunshine are June and July (Average sunshine: 12h and 6min).
The month with the least sunshine is December (Average sunshine: 6h and 24min).

Average sunshine days in December
Hanford, CA

  • Average sunshine days in December: 23.6 days

The month with the most sunshine days is August (29.3 days).
The month with the least sunshine days is February (21.9 days).

Average UV index in December
Hanford, CA

  • Average UV index in December: 3

The month with the highest UV index is July (UV index 8).
The months with the lowest UV index are January, November and December (UV index 3).

Average cloud cover in December
Hanford, CA

  • Average cloud cover in December: 29

The month with the most cloud cover is December (Cloud cover 29).
The month with the least cloud cover is August (Cloud cover 4).

Average visibility in December
Hanford, 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).