December weather forecastHyder, AZ

December

Weather in December

December, the first month of the winter in Hyder, is still a refreshing month, with an average temperature varying between 49.6°F (9.8°C) and 64.8°F (18.2°C).

Temperature

Hyder notes the coldest temperatures in December, with a high average of 64.8°F (18.2°C) and a low of 49.6°F (9.8°C).

Humidity

With an average relative humidity of 40%, December is the most humid month.

Rainfall

In Hyder, in December, during 3.8 rainfall days, 0.39" (10mm) of precipitation is typically accumulated. Throughout the year, there are 39.5 rainfall days, and 4.06" (103mm) of precipitation is accumulated.

Daylight

December has the shortest days of the year, with an average of 10h and 0min of daylight.
On the first day of the month, sunrise is at 7:18 am and sunset at 5:26 pm. On the last day of December, sunrise is at 7:36 am and sunset at 5:37 pm MST.

Sunshine

With an average of 7.1h of sunshine, December has the least sunshine of the year.

UV index

The months with the lowest UV index are November and December, with an average maximum UV index of 4. A UV Index reading of 3 to 5 represents a moderate health risk from unprotected exposure to Sun's UV rays for average individuals.
Note: The daily maximum UV index of 4 in December interprets into the following advice:
Heed the precautions - Protecting the skin and eyes from damage is compulsory. The midday Sun can be dangerous due to its intense radiation; always find shade and reduce exposure. For a sun-safe wardrobe, go for clothes that are tightly woven and generously sized.

Updated: Jul 3, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

Hyder's temperature records reveal December as the coldest month, marked by average highs of 64.8°F (18.2°C) and lows of 49.6°F (9.8°C).

An average high-temperature, in December, in Hyder, is 64.8°F (18.2°C) and the average low-temperature is 49.6°F (9.8°C).

December is the most humid month, with an average relative humidity of 40%.

In Hyder, the average relative humidity in December is 40%.

In Hyder, during December, the rain falls for 3.8 days and regularly aggregates up to 0.39" (10mm) of precipitation.

With an average of 10h and 0min of daylight, December has the shortest days of the year.

The average day length in December is 10h and 1min.

In December, on the first day of the month, sunrise is at 7:18 am and sunset at 5:26 pm. On the last day of the month, sunrise is at 7:36 am and sunset at 5:37 pm MST.

With an average of 7.1h of sunshine, December has the least sunshine of the year.

In December, the average sunshine duration is 7.1h.

November and December, with an average maximum UV index of 4, are months with the lowest UV index.

In December, the average daily maximum UV index is 4. A UV Index reading of 3 to 5 represents a moderate health threat from unprotected exposure to UV radiation.

Today

Tomorrow

Long-term

Year J F M A M J J A S O N December

Nov

December

Jan

Average high temperature

75.4°F

64.8°F

66.6°F

Average low temperature

Average pressure

Average wind speed

Average max. wind speed

6.5mph

6.2mph

Average wind speed gusts

Average humidity

Average rainfall

Average rainfall days

Average daylight

Average sunshine

Average sunshine days

28.3

27.2

27.7

Average UV index

Average cloud cover

Average visibility

Average temperature in December
Hyder, AZ

Average high temperature in December: 64.8°F

The warmest month (with the highest average high temperature) is July (103.8°F).
The month with the lowest average high temperature is December (64.8°F).

Average low temperature in December: 49.6°F

The month with the highest average low temperature is August (86.2°F).
The coldest months (with the lowest average low temperature) are January and December (49.6°F).

Average pressure in December
Hyder, AZ

Average pressure in December: 30.03"Hg

The month with the highest atmospheric pressure is January (30.06"Hg).
The month with the lowest atmospheric pressure is June (29.73"Hg).

Average wind speed in December
Hyder, AZ

Average wind speed in December: 5.6mph

The windiest month (with the highest average wind speed) is July (8.6mph).
The calmest month (with the lowest average wind speed) is December (5.6mph).

Average humidity in December
Hyder, AZ

Average humidity in December: 40%

The month with the highest relative humidity is December (40%).
The month with the lowest relative humidity is June (21%).

Average rainfall in December
Hyder, AZ

Average rainfall in December: 0.39"

The wettest month (with the highest rainfall) is July (0.75").
The driest month (with the least rainfall) is May (0.04").

Average rainfall days in December
Hyder, AZ

Average rainfall days in December: 3.8 days

The month with the highest number of rainy days is July (8.2 days).
The month with the least rainy days is May (1 days).

Average daylight in December /
Average sunshine in December
Hyder, AZ

Average daylight in December: 10h and 0min

The month with the longest days is June (Average daylight: 14h and 18min).
The month with the shortest days is December (Average daylight: 10h and 0min).

Average sunshine in December: 7h and 6min

The month with the most sunshine is June (Average sunshine: 12h and 12min).
The month with the least sunshine is December (Average sunshine: 7h and 6min).

Average sunshine days in December
Hyder, AZ

Average sunshine days in December: 27.2 days

The month with the most sunshine days is May (29.7 days).
The month with the least sunshine days is July (19.3 days).

Average UV index in December
Hyder, AZ

Average UV index in December: 4

The months with the highest UV index are June, July and August (UV index 8).
The months with the lowest UV index are November and December (UV index 4).

Average cloud cover in December
Hyder, AZ

Average cloud cover in December: 18

The month with the most cloud cover is December (Cloud cover 18).
The month with the least cloud cover is June (Cloud cover 5).

Average visibility in December
Hyder, AZ

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).