January weather forecast and climate
Philadelphia, MO

January, like December, in Philadelphia, Missouri, is another cold winter month, with average temperature fluctuating between 21°F (-6.1°C) and 33.6°F (0.9°C).

Temperature

January is the coldest month, with an average high-temperature of 33.6°F (0.9°C) and an average low-temperature of 21°F (-6.1°C).

Humidity

In January, the average relative humidity is 78%.

Rainfall

January is the month with the least rainfall in Philadelphia. Rain falls for 5.4 days and accumulates 1.3" (33mm) of precipitation.

Snowfall

Months with snowfall are January through April, November and December. January is the month with the most snowfall. Snow falls for 7.3 days and accumulates 3.7" (94mm) of snow.

Daylight

In January, the average length of the day in Philadelphia, Missouri, is 9.7h.

Sunshine

The month with the least sunshine in Philadelphia, Missouri, is January, with an average of 4.5h of sunshine.

UV index

January, February, November and December, with an average maximum UV index of 2, are months with the lowest UV index. A UV Index estimate of 2, and below, represents a minimal health hazard from the exposure to the Sun's UV rays for the average person.
Note: The average daily UV index of 2 in January transform into the following instructions:
For the majority, extended sun exposure is not of great concern. Infants and people with sensitive skin must always be protected. 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 coldest month in Philadelphia?

With an average high-temperature of 33.6°F (0.9°C) and an average low-temperature of 21°F (-6.1°C), January is the coldest month in Philadelphia.

What is the temperature in January in Philadelphia?

In Philadelphia, in January, the average high-temperature is 33.6°F (0.9°C), and the average low-temperature is 21°F (-6.1°C).

What is the average humidity in January in Philadelphia?

In Philadelphia, Missouri, the average relative humidity in January is 78%.

How much does it rain in Philadelphia in January?

In Philadelphia, during January, the rain falls for 5.4 days and regularly aggregates up to 1.3" (33mm) of precipitation.

What is the driest month in Philadelphia?

The month with the least rainfall in Philadelphia is January when the rain falls for 5.4 days and typically collects 1.3" (33mm) of precipitation.

How many days does it snow in January in Philadelphia?

In Philadelphia, in January, during 7.3 snowfall days, 3.7" (94mm) of snow is typically accumulated.

When does it snow the most in Philadelphia?

January is the month with the most snowfall in Philadelphia, Missouri. Snow falls for 7.3 days and accumulates 3.7" (94mm) of snow.

How many hours of daylight does Philadelphia have in January?

In Philadelphia, the average length of the day in January is 9.7h.

What is the month with the least sunshine in Philadelphia?

The month with the least sunshine in Philadelphia, Missouri, is January, with an average of 4.5h of sunshine.

How long on average sun shines in January in Philadelphia?

The average sunshine in January in Philadelphia is 4.5h.

What is the month with the lowest UV index in Philadelphia?

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

What is the UV index reading in January in Philadelphia?

In January, the average daily maximum UV index is 2. A UV Index value of 2, and less, symbolizes a low health risk from the exposure to the Sun's UV radiation.
Average temperature in January - Philadelphia, MO
  • Average high temperature in January: 0.9°C

The warmest month (with the highest average high temperature) is July (29.3°C).
The month with the lowest average high temperature is January (0.9°C).

  • Average low temperature in January: -6.1°C

The month with the highest average low temperature is July (19.4°C).
The coldest month (with the lowest average low temperature) is January (-6.1°C).

Average pressure in January - Philadelphia, MO
  • Average pressure in January: 1021.1mbar

The month with the highest atmospheric pressure is January (1021.1mbar).
The month with the lowest atmospheric pressure is June (1012.7mbar).

Average wind speed in January - Philadelphia, MO
  • Average wind speed in January: 16.2km/h

The windiest month (with the highest average wind speed) is January (16.2km/h).
The calmest month (with the lowest average wind speed) is July (10.2km/h).

Average humidity in January - Philadelphia, MO
  • Average humidity in January: 78%

Months with the highest relative humidity are May, June and July (80%).
The month with the lowest relative humidity is October (70%).

Average rainfall in January - Philadelphia, MO
  • Average rainfall in January: 33mm

The wettest month (with the highest rainfall) is May (91mm).
The driest month (with the least rainfall) is January (33mm).

Average rainfall days in January - Philadelphia, MO
  • Average rainfall days in January: 5.4 days

The month with the highest number of rainy days is May (17.5 days).
The month with the least rainy days is January (5.4 days).

Average snowfall in January - Philadelphia, MO
  • Average snowfall in January: 94mm

The month with the highest snowfall is January (94mm).
Months with the least snowfall are May, June, July, August, September and October (0mm).

Average snowfall days in January - Philadelphia, MO
  • Average snowfall days in January: 7.3 days

The month with the highest number of snowfall days is January (7.3 days).
Months with the least snowfall days are May, June, July, August and September (0 days).

Average daylight in January / Average sunshine in January - Philadelphia, MO
  • Average daylight in January: 9.7h

The month with the longest days is June (Average daylight: 15h).
The month with the shortest days is December (Average daylight: 9.4h).

  • Average sunshine in January: 4.5h

The month with the most sunshine is July (Average sunshine: 10.4h).
The month with the least sunshine is January (Average sunshine: 4.5h).

Average sunshine days in January - Philadelphia, MO
  • Average sunshine days in January: 19.4 days

Months with the most sunshine days are January and December (19.4 days).
The month with the least sunshine days is May (11.8 days).

Average UV index in January - Philadelphia, MO
  • Average UV index in January: 2

Months with the highest UV index are June, July and August (UV index 6).
Months with the lowest UV index are January, February, November and December (UV index 2).

Average cloud cover in January - Philadelphia, MO
  • Average cloud cover in January: 51

The month with the most cloud cover is January (Cloud cover 51).
Months with the least cloud cover are July and August (Cloud cover 28).

Average visibility in January - Philadelphia, MO
  • Average visibility in January: 9km

Months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (9km).
Months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (9km).