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 snowfall in December
- Average snowfall 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 arrival of December indicates a decrease in the average high-temperature, moving from a moderate 59°F (15°C) in November to a frosty 48.9°F (9.4°C). Hydro encounters a steady low-temperature average of 31.8°F (-0.1°C) throughout the month of December.Humidity
The average relative humidity in December is 65%.Rainfall
January, February and December are months with the least rain when the rain falls for 5.4 days and typically aggregates up to 0.83" (21mm) of rain.Snowfall
Months with snowfall are January through April, October through December. In Hydro, in December, snow falls for 2.6 days, with typically accumulated 0.51" (13mm) of snow. Throughout the year, there are 9.5 snowfall days, and 4.88" (124mm) of snow is accumulated.Daylight
December has the shortest days of the year, with an average of 9h and 48min of daylight.On the first day of December, sunrise is at 7:25 am and sunset at 5:21 pm. On the last day of the month, sunrise is at 7:43 am and sunset at 5:31 pm CST.
Sunshine
With an average of 6.4h of sunshine, December has the least sunshine of the year.UV index
December is the month with the lowest UV index in Hydro, with an average maximum UV index of 2. A UV Index value of 2, and less, symbolizes a minimal health hazard from unsafe exposure to UV radiation for average individuals.Note: The maximum UV index of 2 during December leads to these instructions:
Protection from prolonged sun exposure is necessary for babies, children, and individuals with sensitive skin. The most potent solar radiation is around mid-day, so one should minimize exposure to direct sunlight during this period. For holistic sun protection encompassing the eyes, ears, face, and neck, a wide-brim hat is key. Be aware! The intensity of the Sun's UV radiation can be amplified nearly twice due to snow reflection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the temperature in December?
What is the average humidity in December?
What is the driest month?
How much does it rain in December?
How many days does it snow in December?
What is the month with the shortest days?
How many hours of daylight does Hydro have in December?
What time are sunrise and sunset in December?
What is the month with the least sunshine?
How many hours of sunshine does Hydro have in December?
What is the month with the lowest UV index?
What is the UV index intensity in December?
Average temperature in December
Hydro, OK
- Average high temperature in December: 48.9°F
The warmest month (with the highest average high temperature) is July (94.6°F).
The month with the lowest average high temperature is January (48.7°F).
- Average low temperature in December: 31.8°F
The month with the highest average low temperature is July (73.9°F).
The coldest month (with the lowest average low temperature) is January (30.6°F).
Average pressure in December
Hydro, OK
- Average pressure in December: 30.13"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.86"Hg).
Average wind speed in December
Hydro, OK
- Average wind speed in December: 10.4mph
The windiest month (with the highest average wind speed) is April (12.8mph).
The calmest month (with the lowest average wind speed) is August (9.1mph).
Average humidity in December
Hydro, OK
- Average humidity in December: 65%
The month with the highest relative humidity is May (66%).
The month with the lowest relative humidity is August (54%).
Average rainfall in December
Hydro, OK
- Average rainfall in December: 0.83"
The wettest month (with the highest rainfall) is May (3.98").
The driest months (with the least rainfall) are January, February and December (0.83").
Average rainfall days in December
Hydro, OK
- Average rainfall days in December: 5.4 days
The month with the highest number of rainy days is May (14.2 days).
The month with the least rainy days is January (3.8 days).
Average snowfall in December
Hydro, OK
- Average snowfall in December: 0.51"
The month with the highest snowfall is January (1.57").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in December
Hydro, OK
- Average snowfall days in December: 2.6 days
The month with the highest number of snowfall days is February (2.8 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Hydro, OK
- Average daylight in December: 9h and 5min
The month with the longest days is June (Average daylight: 14h and 30min).
The month with the shortest days is December (Average daylight: 9h and 48min).
- Average sunshine in December: 6h and 2min
The month with the most sunshine is July (Average sunshine: 11h and 24min).
The month with the least sunshine is December (Average sunshine: 6h and 24min).
Average sunshine days in December
Hydro, OK
- Average sunshine days in December: 23.1 days
The month with the most sunshine days is January (25.2 days).
The month with the least sunshine days is May (14 days).
Average UV index in December
Hydro, OK
- Average UV index in December: 2
The months with the highest UV index are June, July and August (UV index 7).
The month with the lowest UV index is December (UV index 2).
Average cloud cover in December
Hydro, OK
- Average cloud cover in December: 28
The month with the most cloud cover is April (Cloud cover 34).
The month with the least cloud cover is August (Cloud cover 18).
Average visibility in December
Hydro, OK
- 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).
Hydro, Oklahoma, USA
Weather forecast for your location
2. Allow the app to use your location