January weather forecast
Norwich, IA

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Weather in January

January, like December, is another subzero cold winter month in Norwich, Iowa, with an average temperature fluctuating between 18°F (-7.8°C) and 31.3°F (-0.4°C).

Temperature

Norwich experiences its lowest temperatures in January, with an average peak of 31.3°F (-0.4°C) and a low of 18°F (-7.8°C).

Humidity

The months with the highest humidity in Norwich are January and July, with an average relative humidity of 79%.

Rainfall

In Norwich, Iowa, in January, during 4.4 rainfall days, 0.79" (20mm) of precipitation is typically accumulated. Throughout the year, there are 125.6 rainfall days, and 26.14" (664mm) of precipitation is accumulated.

Snowfall

Months with snowfall in Norwich are January through April, October through December. The month with the most snowfall is January, when snow falls for 8.6 days and typically aggregates up to 3.11" (79mm) of snow.

Daylight

The average length of the day in January in Norwich is 9h and 39min.
On the first day of the month, sunrise is at 7:45 am and sunset at 5:03 pm. On the last day of January, in Norwich, sunrise is at 7:32 am and sunset at 5:36 pm CST.

Sunshine

January has the least sunshine of the year, with an average of 4.7h of sunshine.

UV index

The months with the lowest UV index in Norwich are January, February, November and December, with an average maximum UV index of 2. A UV Index of 2, and less, symbolizes a minimal health hazard from unsafe exposure to UV radiation for the average person.
Note: A maximum high daily UV index of 2 during January translates into the following directions:
Infants, children, and people with sensitive skin should always have protection against lengthy periods of sun exposure. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. On sunny days, it's ideal to wear sunglasses that filter out UVA and UVB rays. Note well! The intensity of the Sun's UV rays can be nearly doubled by snow reflection.
Updated: Feb 12, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What are the coldest months in Norwich?

During the coldest month in Norwich, January, temperatures average a high of 31.3°F (-0.4°C) and a low of 18°F (-7.8°C).

How cold is January in Norwich?

January temperatures in Norwich vary between a high-temperature of 31.3°F (-0.4°C) and a low-temperature of 18°F (-7.8°C).

What are the most humid months in Norwich?

January and July, with an average relative humidity of 79%, are most humid months in Norwich.

What is the average humidity in January in Norwich?

The average relative humidity in January in Norwich, Iowa, is 79%.

How much does it rain in Norwich in January?

In Norwich, in January, during 4.4 rainfall days, 0.79" (20mm) of precipitation is typically accumulated.

What is the snowiest month in Norwich?

The month with the most snowfall in Norwich, Iowa, is January, when snow falls for 8.6 days and typically aggregates up to 3.11" (79mm) of snow.

How many days does it snow in January in Norwich?

In Norwich, in January, during 8.6 snowfall days, 3.11" (79mm) of snow is typically accumulated.

How many hours of daylight does Norwich have in January?

The average day length in January in Norwich is 9h and 39min.

When is the sunrise / sunset in January in Norwich?

In January, on the first day of the month, sunrise is at 7:45 am and sunset at 5:03 pm. On the last day of the month, sunrise is at 7:32 am and sunset at 5:36 pm CST.

What is the month with the least sunshine in Norwich?

The month with the least sunshine is January, with an average of 4.7h of sunshine.

How long on average sun shines in January in Norwich?

In January, the average sunshine duration in Norwich is 4.7h.

When is the lowest UV index in Norwich?

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

What is the UV index reading in January in Norwich?

In Norwich, Iowa, the average daily maximum UV index in January is 2. A UV Index reading of 2, and below, represents a low health risk from unprotected exposure to UV radiation.
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
Norwich, IA

Average temperature in January - Norwich, IA
  • Average high temperature in January: 31.3°F

The warmest month (with the highest average high temperature) is July (84°F).
The month with the lowest average high temperature is January (31.3°F).

  • Average low temperature in January: 18°F

The month with the highest average low temperature is July (66.7°F).
The coldest month (with the lowest average low temperature) is January (18°F).

Average pressure in January
Norwich, IA

Average pressure in January - Norwich, IA
  • Average pressure in January: 30.17"Hg

The month with the highest atmospheric pressure is January (30.17"Hg).
The month with the lowest atmospheric pressure is June (29.87"Hg).

Average wind speed in January
Norwich, IA

Average wind speed in January - Norwich, IA
  • Average wind speed in January: 9.8mph

The windiest month (with the highest average wind speed) is April (10.3mph).
The calmest month (with the lowest average wind speed) is July (6.7mph).

Average humidity in January
Norwich, IA

Average humidity in January - Norwich, IA
  • Average humidity in January: 79%

The months with the highest relative humidity are January and July (79%).
The month with the lowest relative humidity is October (67%).

Average rainfall in January
Norwich, IA

Average rainfall in January - Norwich, IA
  • Average rainfall in January: 0.79"

The wettest month (with the highest rainfall) is June (4.29").
The driest month (with the least rainfall) is February (0.71").

Average rainfall days in January
Norwich, IA

Average rainfall days in January - Norwich, IA
  • Average rainfall days in January: 4.4 days

The month with the highest number of rainy days is May (16.3 days).
The month with the least rainy days is February (3.9 days).

Average snowfall in January
Norwich, IA

Average snowfall in January - Norwich, IA
  • Average snowfall in January: 3.11"

The month with the highest snowfall is January (3.11").
The months with the least snowfall are May, June, July, August and September (0").

Average snowfall days in January
Norwich, IA

Average snowfall days in January - Norwich, IA
  • Average snowfall days in January: 8.6 days

The month with the highest number of snowfall days is January (8.6 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average daylight in January /
Average sunshine in January
Norwich, IA

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

The month with the longest days is June (Average daylight: 15h and 0min).
The month with the shortest days is December (Average daylight: 9h and 18min).

  • Average sunshine in January: 4h and 4min

The month with the most sunshine is July (Average sunshine: 10h and 30min).
The month with the least sunshine is January (Average sunshine: 4h and 42min).

Average sunshine days in January
Norwich, IA

Average sunshine days in January - Norwich, IA
  • Average sunshine days in January: 19 days

The month with the most sunshine days is November (20.8 days).
The month with the least sunshine days is June (11.8 days).

Average UV index in January
Norwich, IA

Average UV index in January - Norwich, IA
  • Average UV index in January: 2

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

Average cloud cover in January
Norwich, IA

Average cloud cover in January - Norwich, IA
  • Average cloud cover in January: 48

The month with the most cloud cover is January (Cloud cover 48).
The month with the least cloud cover is July (Cloud cover 26).

Average visibility in January
Norwich, IA

Average visibility in January - Norwich, IA
  • Average visibility in January: 6mi

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

Norwich, Iowa, USA

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