January weather forecast
West Branch, IA

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Weather in January

January, like December, is a freezing cold winter month in West Branch, Iowa, with an average temperature fluctuating between 15.4°F (-9.2°C) and 27.3°F (-2.6°C).

Temperature

January is the coldest month, exhibiting average temperatures of 27.3°F (-2.6°C) at the peak and 15.4°F (-9.2°C) at the base.

Humidity

In January, the average relative humidity is 83%.

Rainfall

The month with the least rainfall in West Branch is January, when the rain falls for 4.4 days and typically collects 1.3" (33mm) of precipitation.

Snowfall

Months with snowfall in West Branch are January through April, October through December. The month with the most snowfall is January, when snow falls for 9.4 days and typically aggregates up to 5.24" (133mm) of snow.

Daylight

The average length of the day in January in West Branch is 9h and 34min.
On the first day of the month, sunrise is at 7:32 am and sunset at 4:45 pm. On the last day of January, in West Branch, sunrise is at 7:18 am and sunset at 5:19 pm CST.

Sunshine

The month with the least sunshine in West Branch is January, with an average of 4.1h of sunshine.

UV index

The months with the lowest UV index in West Branch, Iowa, are January and December, with an average maximum UV index of 1. A UV Index estimate of 2, and below, represents a minimal health vulnerability from exposure to the Sun's UV rays for the ordinary person.
Note: A maximum high daily UV index of 1 during January translates into the following directions:
Sun exposure does not present considerable issues for many, yet infants, fair-skinned people, and children necessitate constant protection. The Sun is most powerful around mid-day, so it's a good practice to reduce direct exposure. Equip yourself with UVA and UVB-filtering sunglasses on clear, sunny days. Forewarned is forearmed! The Sun's UV radiation can be almost doubled in intensity by snow reflection.

Frequently asked questions

What month is the coldest in West Branch?

January is the month that records the lowest temperatures, with averages ranging from a high of 27.3°F (-2.6°C) to a low of 15.4°F (-9.2°C).

How cold is January in West Branch?

The high-temperature, in January, in West Branch, is 27.3°F (-2.6°C), while the low-temperature averages to 15.4°F (-9.2°C).

What is the average humidity in January in West Branch?

The average relative humidity in January in West Branch, Iowa, is 83%.

What is the driest month in West Branch?

January is the month with the least rainfall. Rain falls for 4.4 days and accumulates 1.3" (33mm) of precipitation.

How much does it rain in West Branch in January?

In West Branch, in January, it is raining for 4.4 days, with typically 1.3" (33mm) of accumulated precipitation.

What is the snowiest month in West Branch?

The month with the most snowfall in West Branch, Iowa, is January, when snow falls for 9.4 days and typically aggregates up to 5.24" (133mm) of snow.

How much does it snow in West Branch in January?

In West Branch, in January, during 9.4 snowfall days, 5.24" (133mm) of snow is typically accumulated.

What is the average length of the day in January in West Branch?

The average day length in January in West Branch, Iowa, is 9h and 34min.

What time are sunrise and sunset in January in West Branch?

In January, on the first day of the month, sunrise is at 7:32 am and sunset at 4:45 pm. On the last day of the month, in West Branch, Iowa, sunrise is at 7:18 am and sunset at 5:19 pm CST.

What is the month with the least sunshine in West Branch?

The month with the least sunshine in West Branch is January, with an average of 4.1h of sunshine.

How long on average sun shines in January in West Branch?

In January, the average sunshine duration in West Branch is 4.1h.

When is the lowest UV index in West Branch?

January and December, with an average maximum UV index of 1, are months with the lowest UV index in West Branch.

What is the UV index reading in January in West Branch?

The average daily maximum UV index in January in West Branch, Iowa, is 1. A UV Index reading of 2, and below, represents a low health risk from unsafe exposure to Sun's UV rays.
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 January
West Branch, IA

Average temperature in January - West Branch, IA
  • Average high temperature in January: 27.3°F

The warmest month (with the highest average high temperature) is July (81°F).
The month with the lowest average high temperature is January (27.3°F).

  • Average low temperature in January: 15.4°F

The month with the highest average low temperature is July (64.6°F).
The coldest month (with the lowest average low temperature) is January (15.4°F).

Average pressure in January
West Branch, IA

Average pressure in January - West Branch, IA
  • Average pressure in January: 30.14"Hg

The month with the highest atmospheric pressure is January (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.9"Hg).

Average wind speed in January
West Branch, IA

Average wind speed in January - West Branch, IA
  • Average wind speed in January: 10.5mph

The windiest month (with the highest average wind speed) is April (10.7mph).
The calmest months (with the lowest average wind speed) are July and August (6.8mph).

Average humidity in January
West Branch, IA

Average humidity in January - West Branch, IA
  • Average humidity in January: 83%

The month with the highest relative humidity is July (84%).
The month with the lowest relative humidity is October (72%).

Average rainfall in January
West Branch, IA

Average rainfall in January - West Branch, IA
  • Average rainfall in January: 1.3"

The wettest month (with the highest rainfall) is May (4.61").
The driest month (with the least rainfall) is January (1.3").

Average rainfall days in January
West Branch, IA

Average rainfall days in January - West Branch, IA
  • Average rainfall days in January: 4.4 days

The month with the highest number of rainy days is May (18.7 days).
The month with the least rainy days is January (4.4 days).

Average snowfall in January
West Branch, IA

Average snowfall in January - West Branch, IA
  • Average snowfall in January: 5.24"

The month with the highest snowfall is January (5.24").
The months with the least snowfall are May, June, July, August and September (0").

Average snowfall days in January
West Branch, IA

Average snowfall days in January - West Branch, IA
  • Average snowfall days in January: 9.4 days

The month with the highest number of snowfall days is January (9.4 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average daylight in January /
Average sunshine in January
West Branch, IA

Average daylight in January / Average sunshine in January - West Branch, IA
  • Average daylight in January: 9h and 4min

The month with the longest days is June (Average daylight: 15h and 12min).
The month with the shortest days is December (Average daylight: 9h and 12min).

  • Average sunshine in January: 4h and 1min

The month with the most sunshine is July (Average sunshine: 10h and 6min).
The month with the least sunshine is January (Average sunshine: 4h and 6min).

Average sunshine days in January
West Branch, IA

Average sunshine days in January - West Branch, IA
  • Average sunshine days in January: 18.2 days

The month with the most sunshine days is November (19 days).
The month with the least sunshine days is June (9.2 days).

Average UV index in January
West Branch, IA

Average UV index in January - West Branch, IA
  • Average UV index in January: 1

The months with the highest UV index are June and July (UV index 6).
The months with the lowest UV index are January and December (UV index 1).

Average cloud cover in January
West Branch, IA

Average cloud cover in January - West Branch, IA
  • Average cloud cover in January: 56

The month with the most cloud cover is January (Cloud cover 56).
The month with the least cloud cover is August (Cloud cover 29).

Average visibility in January
West Branch, IA

Average visibility in January - West Branch, IA
  • Average visibility in January: 6mi

The months with the highest visibility are January, February, March, April, May, June, August, September, October, November and December (6mi).
The month with the lowest visibility is July (5mi).

West Branch, Iowa, USA

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