January weather forecast and climate
Portis, KS

January, like December, in Portis, Kansas, is a wintry winter month, with average temperature fluctuating between 39.9°F (4.4°C) and 23.9°F (-4.5°C).

Temperature

With an average high-temperature of 39.9°F (4.4°C) and an average low-temperature of 23.9°F (-4.5°C), January is the coldest month.

Humidity

January and December, with an average relative humidity of 69%, are most humid months.

Rainfall

January is the month with the least rainfall. Rain falls for 3.8 days and accumulates 0.59" (15mm) of precipitation.

Snowfall

January through May, October through December are months with snowfall. In Portis, during January, snow falls for 4.9 days and regularly aggregates up to 1.69" (43mm) of snow. In Portis, Kansas, during the entire year, snow falls for 22.6 days, and aggregates up to 8.5" (216mm) of snow.

Daylight

In January, the average length of the day is 9.8h.

Sunshine

In January, the average sunshine in Portis is 6.1h.

UV index

Months with the lowest UV index in Portis are January, February, November and December, with an average maximum UV index of 2. A UV Index reading of 2, and below, represents a low threat to health from the exposure to the Sun's UV rays for the ordinary person.
Note: The daily maximum UV index of 2 interpret into the following advice:
People with sensitive skin, children, and babies should always be protected from prolonged sun exposure. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. 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. Beware! The strength of the UV rays is increased nearly double-fold by the reflection of the snow.

What is the coldest month in Portis?

With an average high-temperature of 39.9°F (4.4°C) and an average low-temperature of 23.9°F (-4.5°C), January is the coldest month in Portis, Kansas.

What is the temperature in January in Portis?

The average high-temperature, in January, in Portis, is 39.9°F (4.4°C), while the average low-temperature is 23.9°F (-4.5°C).

What is the most humid month in Portis?

Months with the highest humidity in Portis, Kansas, are January and December, with an average relative humidity of 69%.

What is the average humidity in January in Portis?

In Portis, the average relative humidity in January is 69%.

How much does it rain in Portis in January?

In Portis, in January, it is raining for 3.8 days, with typically 0.59" (15mm) of accumulated precipitation.

What is the driest month in Portis?

January is the month with the least rainfall in Portis. Rain falls for 3.8 days and accumulates 0.59" (15mm) of precipitation.

How much does it snow in Portis in January?

In January, in Portis, it is snowing for 4.9 days. Throughout January, 1.69" (43mm) of snow is accumulated.

What is the average length of the day in January in Portis?

In Portis, Kansas, the average length of the day in January is 9.8h.

How many hours of sunshine does Portis have in January?

In Portis, Kansas, the average sunshine in January is 6.1h.

What are the months with the lowest UV index in Portis?

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

What is the UV index intensity in January in Portis?

In Portis, the average daily maximum UV index in January is 2. A UV Index reading of 2, and below, represents a low health risk from the exposure to the Sun's UV radiation.
Average temperature in January - Portis, KS
  • Average high temperature in January: 39.9°F

The warmest month (with the highest average high temperature) is July (92.5°F).
The month with the lowest average high temperature is January (39.9°F).

  • Average low temperature in January: 23.9°F

The month with the highest average low temperature is July (70.5°F).
The coldest month (with the lowest average low temperature) is January (23.9°F).

Average pressure in January - Portis, KS
  • Average pressure in January: 30.17"

The month with the highest atmospheric pressure is January (30.17").
The month with the lowest atmospheric pressure is June (29.85").

Average wind speed in January - Portis, KS
  • Average wind speed in January: 10.1mph

The windiest month (with the highest average wind speed) is April (11.7mph).
The calmest month (with the lowest average wind speed) is August (8.9mph).

Average humidity in January - Portis, KS
  • Average humidity in January: 69%

Months with the highest relative humidity are January and December (69%).
The month with the lowest relative humidity is July (57%).

Average rainfall in January - Portis, KS
  • Average rainfall in January: 0.59"

The wettest month (with the highest rainfall) is May (3.74").
The driest month (with the least rainfall) is January (0.59").

Average rainfall days in January - Portis, KS
  • Average rainfall days in January: 3.8 days

The month with the highest number of rainy days is May (14.4 days).
The month with the least rainy days is January (3.8 days).

Average snowfall in January - Portis, KS
  • Average snowfall in January: 1.69"

The month with the highest snowfall is February (2.2").
Months with the least snowfall are June, July, August and September (0").

Average snowfall days in January - Portis, KS
  • Average snowfall days in January: 4.9 days

The month with the highest number of snowfall days is February (6.3 days).
Months with the least snowfall days are June, July, August and September (0 days).

Average daylight in January / Average sunshine in January - Portis, KS
  • Average daylight in January: 9.8h

The month with the longest days is June (Average daylight: 14.9h).
The month with the shortest days is December (Average daylight: 9.4h).

  • Average sunshine in January: 6.1h

The month with the most sunshine is June (Average sunshine: 11.2h).
The month with the least sunshine is December (Average sunshine: 6h).

Average sunshine days in January - Portis, KS
  • Average sunshine days in January: 22.6 days

The month with the most sunshine days is November (23.5 days).
The month with the least sunshine days is May (13.5 days).

Average UV index in January - Portis, KS
  • Average UV index in January: 2

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

Average cloud cover in January - Portis, KS
  • Average cloud cover in January: 33

The month with the most cloud cover is March (Cloud cover 36).
The month with the least cloud cover is June (Cloud cover 21).

Average visibility in January - Portis, KS
  • Average visibility in January: 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).