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
In December, the meteorological conditions alter, with the average high-temperature shifting from a refreshing 60.1°F (15.6°C) in November to a chilly 49.3°F (9.6°C). Newcastle, during December nights, observes an average temperature of 34.2°F (1.2°C).Humidity
The average relative humidity in December in Newcastle is 66%.Rainfall
The months with the least rainfall are February and December Rain falls for 5.5 days and accumulates 0.98" (25mm) of rain.Snowfall
January through March, November and December are months with snowfall in Newcastle. In Newcastle, during December, snow falls for 1.4 days and regularly aggregates up to 0.59" (15mm) of snow. Throughout the year, in Newcastle, Oklahoma, there are 5.9 snowfall days, and 2.95" (75mm) 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 the month, sunrise is at 7:21 am and sunset at 5:18 pm. On the last day of December, in Newcastle, sunrise is at 7:38 am and sunset at 5:28 pm CST.
Sunshine
December has the least sunshine of the year, with an average of 6.1h of sunshine.UV index
The month with the lowest UV index in Newcastle is December, with an average maximum UV index of 2. A UV Index value of 2, and less, symbolizes a minimal health vulnerability from unprotected exposure to Sun's UV rays for the ordinary person.Note: In December, the maximum UV index of 2 transforms into these recommendations:
Apart from children, who require continuous protection, most can endure sun exposure for up to an hour without experiencing burns. UV radiation is strongest from the Sun during midday; protect yourself by staying in shaded areas. Employ a hat with a wide brim for robust protection, cutting UV exposure by half. Notice! The UV radiation of the Sun can be intensified nearly twofold due to the reflective quality of snow.
Frequently asked questions
What are December temperatures in Newcastle?
What is the average humidity in December in Newcastle?
What is the driest month in Newcastle?
How many days does it rain in December in Newcastle?
How much does it snow in Newcastle in December?
What is the month with the shortest days in Newcastle?
What is the average length of the day in December in Newcastle?
What time are sunrise and sunset in December in Newcastle?
What is the month with the least sunshine in Newcastle?
How many hours of sunshine does Newcastle have in December?
What is the month with the lowest UV index in Newcastle?
How high is the UV index in December in Newcastle?
Average temperature in December
Newcastle, OK
- Average high temperature in December: 49.3°F
The warmest month (with the highest average high temperature) is July (93.6°F).
The month with the lowest average high temperature is January (49.1°F).
- Average low temperature in December: 34.2°F
The month with the highest average low temperature is July (73.2°F).
The coldest month (with the lowest average low temperature) is January (32°F).
Average pressure in December
Newcastle, 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 (29.87"Hg).
Average wind speed in December
Newcastle, OK
- Average wind speed in December: 10.3mph
The windiest month (with the highest average wind speed) is April (12.2mph).
The calmest month (with the lowest average wind speed) is August (8.5mph).
Average humidity in December
Newcastle, OK
- Average humidity in December: 66%
The month with the highest relative humidity is May (74%).
The month with the lowest relative humidity is August (59%).
Average rainfall in December
Newcastle, OK
- Average rainfall in December: 0.98"
The wettest month (with the highest rainfall) is May (3.82").
The driest months (with the least rainfall) are February and December (0.98").
Average rainfall days in December
Newcastle, OK
- Average rainfall days in December: 5.5 days
The month with the highest number of rainy days is May (14.6 days).
The month with the least rainy days is January (4.6 days).
Average snowfall in December
Newcastle, OK
- Average snowfall in December: 0.59"
The month with the highest snowfall is February (1.1").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in December
Newcastle, OK
- Average snowfall days in December: 1.4 days
The month with the highest number of snowfall days is February (1.8 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average daylight in December /
Average sunshine in December
Newcastle, 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 1min
The months with the most sunshine are July and August (Average sunshine: 11h and 6min).
The month with the least sunshine is December (Average sunshine: 6h and 6min).
Average sunshine days in December
Newcastle, OK
- Average sunshine days in December: 23.5 days
The month with the most sunshine days is January (24.5 days).
The month with the least sunshine days is May (13.7 days).
Average UV index in December
Newcastle, 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
Newcastle, OK
- Average cloud cover in December: 31
The month with the most cloud cover is March (Cloud cover 37).
The month with the least cloud cover is August (Cloud cover 18).
Average visibility in December
Newcastle, 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).
Newcastle, Oklahoma, USA
Weather forecast for your location
2. Allow the app to use your location
