December weather forecastCromwell, OK
December
Weather in December
The first month of the winter, December, is still a chilly month in Cromwell, Oklahoma, with an average temperature varying between 49.3°F (9.6°C) and 34.9°F (1.6°C).Temperature
In Cromwell, the beginning of December is marked by a lowered average high-temperature, shifting from November's mild 59.9°F (15.5°C) to a frosty 49.3°F (9.6°C). Cromwell reports an average low-temperature of 34.9°F (1.6°C) during the nights of December.Humidity
The average relative humidity in December is 69%.Rainfall
In December, the rain falls for 6.8 days. Throughout December, 1.42" (36mm) of precipitation is accumulated. Throughout the year, there are 129.9 rainfall days, and 29.06" (738mm) of precipitation is accumulated.Snowfall
Months with snowfall are January through April, September, November and December. In Cromwell, during December, snow falls for 1.5 days and regularly aggregates up to 0.47" (12mm) of snow. In Cromwell, during the entire year, snow falls for 7.4 days and aggregates up to 3.9" (99mm) of snow.Daylight
The month with the shortest days is December, with an average of 9h and 48min of daylight.On the first day of December, sunrise is at 7:16 am and sunset at 5:13 pm. On the last day of the month, sunrise is at 7:34 am and sunset at 5:23 pm CST.
Sunshine
With an average of 5.7h of sunshine, December has the least sunshine of the year.UV index
The month with the lowest UV index is December, with an average maximum UV index of 2. A UV Index reading of 2, and below, represents a low health risk from unsafe exposure to UV radiation for ordinary individuals.Note: An average maximum UV index of 2 in December leads to these recommendations:
Long-term sun exposure is typically not a concern for most. However, those with sensitive skin, infants, and children must always have protection. Sun's radiation is most powerful around mid-day, so it's best to limit outdoor activities during this time. Protect your eyes, ears, face, and neck from the Sun by wearing a wide-brimmed hat. Be prepared! The intensity of the Sun's UV radiation can be amplified nearly double due to snow reflection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Cromwell, OK
- Average high temperature in December: 49.3°F
The warmest months (with the highest average high temperature) are July and August (91.8°F).
The month with the lowest average high temperature is January (47.8°F).
- Average low temperature in December: 34.9°F
The month with the highest average low temperature is July (72.3°F).
The coldest month (with the lowest average low temperature) is January (32°F).
Average pressure in December
Cromwell, 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 (29.89"Hg).
Average wind speed in December
Cromwell, OK
- Average wind speed in December: 9.5mph
The windiest months (with the highest average wind speed) are March and April (11mph).
The calmest months (with the lowest average wind speed) are July and August (7.4mph).
Average humidity in December
Cromwell, OK
- Average humidity in December: 69%
The month with the highest relative humidity is May (80%).
The month with the lowest relative humidity is August (65%).
Average rainfall in December
Cromwell, OK
- Average rainfall in December: 1.42"
The wettest month (with the highest rainfall) is May (4.72").
The driest months (with the least rainfall) are February and November (1.38").
Average rainfall days in December
Cromwell, OK
- Average rainfall days in December: 6.8 days
The month with the highest number of rainy days is May (15.9 days).
The month with the least rainy days is January (6.3 days).
Average snowfall in December
Cromwell, OK
- Average snowfall in December: 0.47"
The month with the highest snowfall is February (1.81").
The months with the least snowfall are May, June, July, August and October (0").
Average snowfall days in December
Cromwell, OK
- Average snowfall days in December: 1.5 days
The month with the highest number of snowfall days is February (2.9 days).
The months with the least snowfall days are May, June, July, August and October (0 days).
Average daylight in December /
Average sunshine in December
Cromwell, OK
- Average daylight in December: 9h and 48min
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: 5h and 42min
The month with the most sunshine is August (Average sunshine: 11h and 0min).
The month with the least sunshine is December (Average sunshine: 5h and 42min).
Average sunshine days in December
Cromwell, OK
- Average sunshine days in December: 21.4 days
The month with the most sunshine days is January (22.4 days).
The month with the least sunshine days is May (13.2 days).
Average UV index in December
Cromwell, 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
Cromwell, OK
- Average cloud cover in December: 35
The month with the most cloud cover is March (Cloud cover 40).
The month with the least cloud cover is August (Cloud cover 20).
Average visibility in December
Cromwell, 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).
