December weather forecast
Ritchey, MO

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Weather in December

The first month of the winter, December, is still a chilly month in Ritchey, Missouri, with an average temperature varying between 46°F (7.8°C) and 31.1°F (-0.5°C).

Temperature

December's arrival correlates with a reduction in the average high-temperature, down from a moderate 56.1°F (13.4°C) in November to a frosty 46°F (7.8°C). Ritchey's average low-temperature during December nights is observed to be a subzero cold 31.1°F (-0.5°C).

Humidity

In Ritchey, the average relative humidity in December is 74%.

Rainfall

In Ritchey, in December, it is raining for 8.2 days, with typically 1.93" (49mm) of accumulated precipitation. Throughout the year, there are 151.1 rainfall days, and 33.35" (847mm) of precipitation is accumulated.

Snowfall

Months with snowfall are January through May, October through December. In Ritchey, in December, snow falls for 3.5 days, with typically accumulated 0.94" (24mm) of snow. In Ritchey, during the entire year, snow falls for 18 days and aggregates up to 6.26" (159mm) of snow.

Daylight

December has the shortest days of the year, with an average of 9h and 42min of daylight.
On the first day of the month, sunrise is at 7:11 am and sunset at 5:00 pm. On the last day of December, sunrise is at 7:29 am and sunset at 5:10 pm CST.

Sunshine

In Ritchey, the average sunshine in December is 5.5h.

UV index

January, February and December, with an average maximum UV index of 2, are months with the lowest UV index. A UV Index value of 2, and less, symbolizes a minimal health vulnerability from unsafe exposure to UV radiation for ordinary individuals.
Note: A maximum high daily UV index of 2 during December translates into the following directions:
Babies, children, and those with sensitive skin should always avoid extended periods in the sun. The Sun's harshest UV rays are around midday; it's wise to seek shade and limit time outdoors. Safeguard your eyes, ears, and face from sun rays with the aid of a wide-brim hat. Be alert! Nearly double the UV rays from the Sun can be reflected by snow.

Frequently asked questions

What are December temperatures?

In December, in Ritchey, the average high-temperature is 46°F (7.8°C), and the average low-temperature is 31.1°F (-0.5°C). The average heat index (a.k.a. 'real feel', 'feels like'), which combines relative humidity and air temperature, in August is computed to be 100.4°F (38°C).

What is the average humidity in December?

In Ritchey, the average relative humidity in December is 74%.

How many days does it rain in December?

In December, the rain falls for 8.2 days. Throughout December, 1.93" (49mm) of precipitation is accumulated.

How much does it snow in December?

In Ritchey, in December, snow falls for 3.5 days, with typically accumulated 0.94" (24mm) of snow.

What is the month with the shortest days?

The month with the shortest days is December, with an average of 9h and 42min of daylight.

How many hours of daylight does Ritchey have in December?

In Ritchey, the average day length in December is 9h and 41min.

What time are sunrise and sunset in December?

On the first day of December, sunrise is at 7:11 am and sunset at 5:00 pm. On the last day of the month, sunrise is at 7:29 am and sunset at 5:10 pm CST.

How long on average sun shines in December?

The average sunshine duration in December is 5.5h.

What is the month with the lowest UV index?

January, February and December, with an average maximum UV index of 2, are months with the lowest UV index.

What is the UV index intensity in December?

In Ritchey, the average daily maximum UV index in December is 2. A UV Index of 2, and less, symbolizes a minimal hazard to health from unprotected exposure to UV radiation.
Average humidity
Average rainfall days
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in December
Ritchey, MO

Average temperature in December - Ritchey, MO
  • Average high temperature in December: 46°F

The warmest month (with the highest average high temperature) is July (89.4°F).
The month with the lowest average high temperature is January (43°F).

  • Average low temperature in December: 31.1°F

The month with the highest average low temperature is July (69.4°F).
The coldest month (with the lowest average low temperature) is January (27.5°F).

Average pressure in December
Ritchey, MO

Average pressure in December - Ritchey, MO
  • Average pressure in December: 30.14"Hg

The month with the highest atmospheric pressure is January (30.17"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).

Average wind speed in December
Ritchey, MO

Average wind speed in December - Ritchey, MO
  • Average wind speed in December: 8.9mph

The windiest month (with the highest average wind speed) is April (10.4mph).
The calmest month (with the lowest average wind speed) is July (6.7mph).

Average humidity in December
Ritchey, MO

Average humidity in December - Ritchey, MO
  • Average humidity in December: 74%

The month with the highest relative humidity is May (78%).
The months with the lowest relative humidity are July, August and October (72%).

Average rainfall in December
Ritchey, MO

Average rainfall in December - Ritchey, MO
  • Average rainfall in December: 1.93"

The wettest month (with the highest rainfall) is May (5.35").
The driest month (with the least rainfall) is February (1.77").

Average rainfall days in December
Ritchey, MO

Average rainfall days in December - Ritchey, MO
  • Average rainfall days in December: 8.2 days

The month with the highest number of rainy days is May (18.5 days).
The month with the least rainy days is December (8.2 days).

Average snowfall in December
Ritchey, MO

Average snowfall in December - Ritchey, MO
  • Average snowfall in December: 0.94"

The month with the highest snowfall is February (2.13").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in December
Ritchey, MO

Average snowfall days in December - Ritchey, MO
  • Average snowfall days in December: 3.5 days

The month with the highest number of snowfall days is February (5.6 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average daylight in December /
Average sunshine in December
Ritchey, MO

Average daylight in December / Average sunshine in December - Ritchey, MO
  • Average daylight in December: 9h and 4min

The month with the longest days is June (Average daylight: 14h and 42min).
The month with the shortest days is December (Average daylight: 9h and 42min).

  • Average sunshine in December: 5h and 3min

The month with the most sunshine is July (Average sunshine: 10h and 48min).
The month with the least sunshine is January (Average sunshine: 5h and 24min).

Average sunshine days in December
Ritchey, MO

Average sunshine days in December - Ritchey, MO
  • Average sunshine days in December: 19.2 days

The month with the most sunshine days is December (19.2 days).
The month with the least sunshine days is May (10.2 days).

Average UV index in December
Ritchey, MO

Average UV index in December - Ritchey, MO
  • Average UV index in December: 2

The month with the highest UV index is July (UV index 7).
The months with the lowest UV index are January, February and December (UV index 2).

Average cloud cover in December
Ritchey, MO

Average cloud cover in December - Ritchey, MO
  • Average cloud cover in December: 41

The months with the most cloud cover are February and March (Cloud cover 45).
The month with the least cloud cover is August (Cloud cover 24).

Average visibility in December
Ritchey, MO

Average visibility in December - Ritchey, 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).

Ritchey, Missouri, USA

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