December weather forecastHatfield, MO
December
Weather in December
December, the first month of the winter in Hatfield, is still a cold month, with an average temperature ranging between max 35.2°F (1.8°C) and min 23.2°F (-4.9°C).Temperature
The shift from November to December corresponds with a decrease in the average high-temperature, down to a cold 35.2°F (1.8°C) from a chilly 48.4°F (9.1°C). Throughout the month of December, Hatfield observes an average nighttime temperature of 23.2°F (-4.9°C).Humidity
In December, the average relative humidity in Hatfield is 78%.Rainfall
February and December are months with the least rain when the rain falls for 5.4 days and typically aggregates up to 0.71" (18mm) of rain.Snowfall
January through May, October through December are months with snowfall in Hatfield, Missouri. In Hatfield, Missouri, during December, snow falls for 5.8 days and regularly aggregates up to 1.42" (36mm) of snow. Throughout the year, there are 28.7 snowfall days, and 11.85" (301mm) of snow is accumulated.Daylight
December has the shortest days of the year, with an average of 9h and 18min of daylight.On the first day of the month, sunrise is at 7:21 am and sunset at 4:50 pm. On the last day of December, in Hatfield, sunrise is at 7:39 am and sunset at 5:00 pm CST.
Sunshine
In Hatfield, the average sunshine in December is 5h.UV index
In Hatfield, the average daily maximum UV index in December is 2. A UV Index estimate of 2, and below, represents a low health risk from unprotected exposure to Sun's UV rays for ordinary individuals.Note: A maximum UV index of 2 in December translates into the following recommendations:
Most individuals face no significant issues with extended sun exposure, but it is always essential to protect children, babies, and those with sensitive skin. For health reasons, it's advisable to reduce direct sun exposure during peak hours around midday. For minimizing sun-related eye damage, always choose sunglasses with UVA and UVB coverage. Be informed! The Sun's UV radiation can be nearly doubled due to the reflection from snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Hatfield, MO
- Average high temperature in December: 35.2°F
The warmest month (with the highest average high temperature) is July (83.5°F).
The month with the lowest average high temperature is January (30.6°F).
- Average low temperature in December: 23.2°F
The month with the highest average low temperature is July (66°F).
The coldest month (with the lowest average low temperature) is January (16.9°F).
Average pressure in December
Hatfield, MO
- 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 (29.88"Hg).
Average wind speed in December
Hatfield, MO
- Average wind speed in December: 9.9mph
The windiest months (with the highest average wind speed) are January, February and March (10.3mph).
The calmest months (with the lowest average wind speed) are July and August (6.8mph).
Average humidity in December
Hatfield, MO
- Average humidity in December: 78%
The month with the highest relative humidity is June (82%).
The month with the lowest relative humidity is October (71%).
Average rainfall in December
Hatfield, MO
- Average rainfall in December: 0.71"
The wettest month (with the highest rainfall) is June (3.86").
The driest months (with the least rainfall) are February and December (0.71").
Average rainfall days in December
Hatfield, MO
- Average rainfall days in December: 5.4 days
The month with the highest number of rainy days is May (17.8 days).
The month with the least rainy days is January (4.1 days).
Average snowfall in December
Hatfield, MO
- Average snowfall in December: 1.42"
The month with the highest snowfall is January (3.54").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Hatfield, MO
- Average snowfall days in December: 5.8 days
The month with the highest number of snowfall days is January (8.4 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Hatfield, MO
- Average daylight in December: 9h and 18min
The month with the longest days is June (Average daylight: 15h and 0min).
The month with the shortest days is December (Average daylight: 9h and 18min).
- Average sunshine in December: 5h and 0min
The month with the most sunshine is July (Average sunshine: 10h and 18min).
The month with the least sunshine is January (Average sunshine: 4h and 36min).
Average sunshine days in December
Hatfield, MO
- Average sunshine days in December: 20.5 days
The month with the most sunshine days is November (21.2 days).
The month with the least sunshine days is May (10.6 days).
Average UV index in December
Hatfield, MO
- Average UV index in December: 2
The months with the highest UV index are June, July and August (UV index 6).
The month with the lowest UV index is January (UV index 1).
Average cloud cover in December
Hatfield, MO
- Average cloud cover in December: 46
The month with the most cloud cover is January (Cloud cover 50).
The month with the least cloud cover is July (Cloud cover 28).
Average visibility in December
Hatfield, MO
- 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).
