January weather forecast
Lewis, CO

Weather in January

January, the same as December, is a wintry winter month in Lewis, Colorado, with temperature in the range of an average low of 19.8°F (-6.8°C) and an average high of 35.1°F (1.7°C).

Temperature

January is the coldest month, with an average high-temperature of 35.1°F (1.7°C) and an average low-temperature of 19.8°F (-6.8°C).

Humidity

With an average relative humidity of 73%, January is the most humid month in Lewis.

Rainfall

The wettest months in Lewis, Colorado, are January and December, with an average 1.26" (32mm) of rainfall.

Snowfall

January through April, October through December are months with snowfall in Lewis. January is the month with the most snowfall. Snow falls for 8.5 days and accumulates 8.11" (206mm) of snow.

Daylight

In Lewis, the average length of the day in January is 9.9h.

Sunshine

Months with the least sunshine are January and December, with an average of 6.5h 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 value of 2, and less, symbolizes a minimal health vulnerability from unprotected exposure to the Sun's UV rays for the ordinary 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. Beware! The strength of the UV rays is increased nearly double-fold by the reflection of the snow.
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FAQ

What is the coldest month in Lewis?

With an average high-temperature of 35.1°F (1.7°C) and an average low-temperature of 19.8°F (-6.8°C), January is the coldest month.

What is the most humid month in Lewis?

With an average relative humidity of 73%, January is the most humid month in Lewis, Colorado.

What is the average humidity in January in Lewis?

The average relative humidity in January is 73%.

What is the wettest month in Lewis?

Months with the most rainfall in Lewis are January and December, with an average 1.26" (32mm) of precipitation.

How much does it rain in Lewis in January?

In Lewis, Colorado, in January, during 6.1 rainfall days, 1.26" (32mm) of precipitation is typically accumulated.

When does it snow the most in Lewis?

The month with the most snowfall is January when snow falls for 8.5 days and typically aggregates up to 8.11" (206mm) of snow.

How much does it snow in Lewis in January?

In Lewis, in January, snow falls for 8.5 days, with typically accumulated 8.11" (206mm) of snow.

How many hours of daylight does Lewis have in January?

In January, the average length of the day in Lewis, Colorado, is 9.9h.

What is the month with the least sunshine in Lewis?

January and December, with an average of 6.5h of sunshine, are months with the least sunshine in Lewis, Colorado.

How long on average sun shines in January in Lewis?

In January, the average sunshine is 6.5h.

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

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

How high is the UV index in January in Lewis?

In January, the average daily maximum UV index in Lewis is 2. A UV Index of 2, and less, symbolizes a low health threat from unsafe exposure to the Sun's UV rays.

Average temperature in January
Lewis, CO

Average temperature in January - Lewis, CO
  • Average high temperature in January: 35.1°F

The warmest month (with the highest average high temperature) is July (84.7°F).
The month with the lowest average high temperature is January (35.1°F).

  • Average low temperature in January: 19.8°F

The month with the highest average low temperature is July (61.5°F).
The coldest month (with the lowest average low temperature) is January (19.8°F).

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Average pressure in January
Lewis, CO

Average pressure in January - Lewis, CO
  • Average pressure in January: 30.23"

The month with the highest atmospheric pressure is January (30.23").
The month with the lowest atmospheric pressure is June (29.87").

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Average wind speed in January
Lewis, CO

Average wind speed in January - Lewis, CO
  • Average wind speed in January: 5.7mph

The windiest month (with the highest average wind speed) is April (9.3mph).
The calmest month (with the lowest average wind speed) is January (5.7mph).

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Average humidity in January
Lewis, CO

Average humidity in January - Lewis, CO
  • Average humidity in January: 73%

The month with the highest relative humidity is January (73%).
The month with the lowest relative humidity is June (26%).

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Average rainfall in January
Lewis, CO

Average rainfall in January - Lewis, CO
  • Average rainfall in January: 1.26"

The wettest months (with the highest rainfall) are January and December (1.26").
The driest month (with the least rainfall) is June (0.2").

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Average rainfall days in January
Lewis, CO

Average rainfall days in January - Lewis, CO
  • Average rainfall days in January: 6.1 days

The month with the highest number of rainy days is July (9.6 days).
The month with the least rainy days is June (2.8 days).

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Average snowfall in January
Lewis, CO

Average snowfall in January - Lewis, CO
  • Average snowfall in January: 8.11"

The month with the highest snowfall is January (8.11").
Months with the least snowfall are May, June, July, August and September (0").

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Average snowfall days in January
Lewis, CO

Average snowfall days in January - Lewis, CO
  • Average snowfall days in January: 8.5 days

Months with the highest number of snowfall days are January and December (8.5 days).
Months with the least snowfall days are May, June, July, August and September (0 days).

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Average daylight in January /
Average sunshine in January
Lewis, CO

Average daylight in January / Average sunshine in January - Lewis, CO
  • Average daylight in January: 9.9h

The month with the longest days is June (Average daylight: 14.7h).
The month with the shortest days is December (Average daylight: 9.6h).

  • Average sunshine in January: 6.5h

The month with the most sunshine is June (Average sunshine: 12.1h).
Months with the least sunshine are January and December (Average sunshine: 6.5).

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Average sunshine days in January
Lewis, CO

Average sunshine days in January - Lewis, CO
  • Average sunshine days in January: 20.7 days

The month with the most sunshine days is June (26.2 days).
The month with the least sunshine days is February (17.6 days).

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Average UV index in January
Lewis, CO

Average UV index in January - Lewis, CO
  • 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).

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Average cloud cover in January
Lewis, CO

Average cloud cover in January - Lewis, CO
  • Average cloud cover in January: 27

Months with the most cloud cover are January and December (Cloud cover 27).
The month with the least cloud cover is June (Cloud cover 9).

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Average visibility in January
Lewis, CO

Average visibility in January - Lewis, CO
  • 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).

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