January weather forecast
Guernsey, IA

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Weather in January

January, the same as December, in Guernsey, Iowa, is a freezing cold winter month, with an average temperature fluctuating between 14.7°F (-9.6°C) and 27.1°F (-2.7°C).

Temperature

The month of January, characterized by an average high of 27.1°F (-2.7°C) and a low of 14.7°F (-9.6°C), is recognized as the coldest.

Humidity

January and July, with an average relative humidity of 84%, are the most humid months in Guernsey, Iowa.

Rainfall

The month with the least rainfall is January, when the rain falls for 5.2 days and typically collects 1.18" (30mm) of precipitation.

Snowfall

Months with snowfall in Guernsey are January through May, October through December. In January, in Guernsey, it is snowing for 10.6 days. Throughout January, 4.96" (126mm) of snow is accumulated. In Guernsey, during the entire year, snow falls for 39 days and aggregates up to 16.65" (423mm) of snow.

Daylight

In January, the average length of the day in Guernsey is 9h and 34min.
On the first day of the month, sunrise is at 7:36 am and sunset at 4:49 pm. On the last day of January, in Guernsey, sunrise is at 7:22 am and sunset at 5:23 pm CST.

Sunshine

January has the least sunshine of the year, with an average of 4.1h of sunshine.

UV index

With an average maximum UV index of 1, January is the month with the lowest UV index. A UV Index reading of 2, and below, represents a low health risk from exposure to the Sun's UV rays for the average person.
Note: The maximum UV index of 1 during January leads to these instructions:
Extended sun exposure is not an issue for the majority. Children, infants, and fair-skinned individuals always need to be protected. Considering the strength of solar radiation at midday, one should avoid direct Sun exposure. Counter UV radiation's ill effects with clothing designed for sun safety and UV-resistant eyewear. Be informed! The Sun's UV radiation can be nearly doubled due to the reflection from snow.
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Frequently asked questions

What month is the coldest in Guernsey?

Temperature readings in Guernsey reach their annual highs in January, averaging 27.1°F (-2.7°C) and a minimum average of 14.7°F (-9.6°C).

How cold is it in Guernsey in January?

The high-temperature, in January, in Guernsey, records 27.1°F (-2.7°C), while the low-temperature is 14.7°F (-9.6°C).

What is the most humid month in Guernsey?

The months with the highest humidity are January and July, with an average relative humidity of 84%.

What is the average humidity in January in Guernsey?

In Guernsey, Iowa, the average relative humidity in January is 84%.

What is the driest month in Guernsey?

The month with the least rainfall in Guernsey is January, when the rain falls for 5.2 days and typically collects 1.18" (30mm) of precipitation.

How many days does it rain in January in Guernsey?

In January, in Guernsey, the rain falls for 5.2 days. Throughout January, 1.18" (30mm) of precipitation is accumulated.

How many days does it snow in January in Guernsey?

In Guernsey, in January, during 10.6 snowfall days, 4.96" (126mm) of snow is typically accumulated.

How many hours of daylight does Guernsey have in January?

In January, the average day length in Guernsey, Iowa, is 9h and 34min.

What time are sunrise and sunset in January in Guernsey?

On the first day of January in Guernsey, sunrise is at 7:36 am and sunset at 4:49 pm. On the last day of the month, sunrise is at 7:22 am and sunset at 5:23 pm CST.

What is the month with the least sunshine in Guernsey?

With an average of 4.1h of sunshine, January has the least sunshine of the year in Guernsey.

How many hours of sunshine does Guernsey have in January?

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

When is the lowest UV index in Guernsey?

With an average maximum UV index of 1, January is the month with the lowest UV index.

What is the UV index intensity in January in Guernsey?

In Guernsey, the average daily maximum UV index in January is 1. A UV Index of 2, and less, symbolizes a minimal health vulnerability from 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
Guernsey, IA

Average temperature in January - Guernsey, IA
  • Average high temperature in January: 27.1°F

The warmest month (with the highest average high temperature) is July (81.1°F).
The month with the lowest average high temperature is January (27.1°F).

  • Average low temperature in January: 14.7°F

The month with the highest average low temperature is July (64.8°F).
The coldest month (with the lowest average low temperature) is January (14.7°F).

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Average pressure in January
Guernsey, IA

Average pressure in January - Guernsey, IA
  • Average pressure in January: 30.15"Hg

The month with the highest atmospheric pressure is January (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.89"Hg).

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Average wind speed in January
Guernsey, IA

Average wind speed in January - Guernsey, IA
  • Average wind speed in January: 10.7mph

The windiest months (with the highest average wind speed) are January and April (10.7mph).
The calmest months (with the lowest average wind speed) are July and August (7mph).

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Average humidity in January
Guernsey, IA

Average humidity in January - Guernsey, IA
  • Average humidity in January: 84%

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

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Average rainfall in January
Guernsey, IA

Average rainfall in January - Guernsey, IA
  • Average rainfall in January: 1.18"

The wettest month (with the highest rainfall) is May (4.57").
The driest month (with the least rainfall) is January (1.18").

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Average rainfall days in January
Guernsey, IA

Average rainfall days in January - Guernsey, IA
  • Average rainfall days in January: 5.2 days

The month with the highest number of rainy days is June (18.9 days).
The month with the least rainy days is February (5 days).

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Average snowfall in January
Guernsey, IA

Average snowfall in January - Guernsey, IA
  • Average snowfall in January: 4.96"

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

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Average snowfall days in January
Guernsey, IA

Average snowfall days in January - Guernsey, IA
  • Average snowfall days in January: 10.6 days

The month with the highest number of snowfall days is January (10.6 days).
The months with the least snowfall days are June, July, August and September (0 days).

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

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

The month with the longest days is June (Average daylight: 15h and 6min).
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).

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Average sunshine days in January
Guernsey, IA

Average sunshine days in January - Guernsey, IA
  • Average sunshine days in January: 16.8 days

The month with the most sunshine days is November (18.5 days).
The month with the least sunshine days is June (8.3 days).

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Average UV index in January
Guernsey, IA

Average UV index in January - Guernsey, IA
  • Average UV index in January: 1

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

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Average cloud cover in January
Guernsey, IA

Average cloud cover in January - Guernsey, 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).

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Average visibility in January
Guernsey, IA

Average visibility in January - Guernsey, IA
  • Average visibility in January: 5mi

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

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Guernsey, Iowa, USA

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