December weather forecast and climate
Ottawa, KS

December, the first month of the winter, in Ottawa, is still a cold month, with average temperature varying between 28.4°F (-2°C) and 41.7°F (5.4°C).

Temperature

In December, the average high-temperature decreases, from a fresh 53.6°F (12°C) in November, to a cold 41.7°F (5.4°C). The average low-temperature, is 28.4°F (-2°C).

Humidity

The average relative humidity is 72%.

Rainfall

In Ottawa, during December, the rain falls for 4.5 days and regularly aggregates up to 0.87" (22mm) of precipitation. In Ottawa, Kansas, during the entire year, the rain falls for 126.9 days and collects up to 23.5" (597mm) of precipitation.

Snowfall

Months with snowfall in Ottawa are January through April, October through December. In Ottawa, during 2.2 snowfall days, 0.87" (22mm) of snow is typically accumulated. In Ottawa, Kansas, during the entire year, snow falls for 14 days, and aggregates up to 6.38" (162mm) of snow.

Daylight

December has the shortest days of the year, with an average of 9.5h of daylight.

Sunshine

In December, the average sunshine in Ottawa is 5.7h.

UV index

January, February, November and December, with an average maximum UV index of 2, are months with the lowest UV index in Ottawa, Kansas. A UV Index estimate of 2, and below, represents a low health risk from the exposure to the Sun's UV radiation for ordinary individuals.
Note: In December, the average maximum UV index of 2 translate into the following recommendations:
Most people can stay in the Sun for up to 1 hour without burning, apart from children that always must be protected from sun exposure. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects. Caution! The reflection of snow can nearly double the intensity of the Sun's UV radiation.

What is the temperature in December in Ottawa?

The average high-temperature, in December, in Ottawa, is 41.7°F (5.4°C), while the average low-temperature is 28.4°F (-2°C).

What is the average humidity in December in Ottawa?

In Ottawa, Kansas, the average relative humidity in December is 72%.

How much does it rain in Ottawa in December?

In Ottawa, Kansas, during December, the rain falls for 4.5 days and regularly aggregates up to 0.87" (22mm) of precipitation.

How many days does it snow in December in Ottawa?

In Ottawa, Kansas, in December, snow falls for 2.2 days, with typically accumulated 0.87" (22mm) of snow.

What is the month with the shortest days in Ottawa?

With an average of 9.5h of daylight, December has the shortest days of the year.

How many hours of daylight does Ottawa have in December?

In Ottawa, the average length of the day in December is 9.5h.

How many hours of sunshine does Ottawa have in December?

In December, the average sunshine in Ottawa, Kansas, is 5.7h.

When is the lowest UV index in Ottawa?

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

How high is the UV index in December in Ottawa?

In December, the average daily maximum UV index in Ottawa is 2. A UV Index of 2, and less, symbolizes a low health risk from the exposure to the Sun's UV radiation.
Average temperature in December - Ottawa, KS
  • Average high temperature in December: 41.7°F

The warmest month (with the highest average high temperature) is July (87.4°F).
The month with the lowest average high temperature is January (38.8°F).

  • Average low temperature in December: 28.4°F

The month with the highest average low temperature is July (68.9°F).
The coldest month (with the lowest average low temperature) is January (23.9°F).

Average pressure in December - Ottawa, KS
  • Average pressure in December: 30.13"

The month with the highest atmospheric pressure is January (30.16").
The month with the lowest atmospheric pressure is June (29.88").

Average wind speed in December - Ottawa, KS
  • Average wind speed in December: 9.8mph

The windiest months (with the highest average wind speed) are March and April (10.6mph).
The calmest months (with the lowest average wind speed) are July and August (7mph).

Average humidity in December - Ottawa, KS
  • Average humidity in December: 72%

The month with the highest relative humidity is May (79%).
Months with the lowest relative humidity are October and November (69%).

Average rainfall in December - Ottawa, KS
  • Average rainfall in December: 0.87"

The wettest month (with the highest rainfall) is May (4.25").
The driest month (with the least rainfall) is January (0.71").

Average rainfall days in December - Ottawa, KS
  • Average rainfall days in December: 4.5 days

The month with the highest number of rainy days is May (16.7 days).
The month with the least rainy days is December (4.5 days).

Average snowfall in December - Ottawa, KS
  • Average snowfall in December: 0.87"

The month with the highest snowfall is February (2.28").
Months with the least snowfall are May, June, July, August and September (0").

Average snowfall days in December - Ottawa, KS
  • Average snowfall days in December: 2.2 days

The month with the highest number of snowfall days is February (4.4 days).
Months with the least snowfall days are June, July, August and September (0 days).

Average daylight in December / Average sunshine in December - Ottawa, KS
  • Average daylight in December: 9.5h

The month with the longest days is June (Average daylight: 14.8h).
The month with the shortest days is December (Average daylight: 9.5h).

  • Average sunshine in December: 5.7h

The month with the most sunshine is June (Average sunshine: 10.7h).
The month with the least sunshine is January (Average sunshine: 5.4h).

Average sunshine days in December - Ottawa, KS
  • Average sunshine days in December: 22.6 days

Months with the most sunshine days are January and December (22.6 days).
The month with the least sunshine days is May (12.7 days).

Average UV index in December - Ottawa, KS
  • Average UV index in December: 2

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

Average cloud cover in December - Ottawa, KS
  • Average cloud cover in December: 38

The month with the most cloud cover is March (Cloud cover 44).
Months with the least cloud cover are June and July (Cloud cover 25).

Average visibility in December - Ottawa, KS
  • Average visibility in December: 6mi

Months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
Months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).