January weather forecast
Saint John, UT

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Weather in January

January, the same as December, is a wintry winter month in Saint John, Utah, with an average temperature ranging between max 32.4°F (0.2°C) and min 18.9°F (-7.3°C).

Temperature

January is Saint John's coldest month, registering average high temperatures of 32.4°F (0.2°C) and lows of 18.9°F (-7.3°C).

Humidity

January is the most humid month, with an average relative humidity of 85%.

Rainfall

In Saint John, in January, during 7.8 rainfall days, 1.73" (44mm) of precipitation is typically accumulated. In Saint John, Utah, during the entire year, the rain falls for 120.7 days and collects up to 18.39" (467mm) of precipitation.

Snowfall

January through May, September through December are months with snowfall in Saint John. The months with the most snowfall are January and December, with an average 12.99" (330mm) of accumulated snow.

Daylight

In January, the average length of the day in Saint John is 9h and 41min.
On the first day of January in Saint John, sunrise is at 7:52 am and sunset at 5:13 pm. On the last day of the month, sunrise is at 7:39 am and sunset at 5:46 pm MST.

Sunshine

The month with the least sunshine is January, with an average of 5.2h of sunshine.

UV index

The average daily maximum UV index in January is 2. A UV Index estimate of 2, and below, represents a low health risk from unsafe exposure to UV radiation for average individuals.
Note: A maximum high UV index of 2 in January translates into the following recommendations:
While many people can endure lengthy sun exposure, it remains imperative to safeguard babies, children, and fair-skinned individuals. Being exposed to the midday Sun can have harmful effects due to strong UV radiation; always take precautions. Sunglasses providing both UVA and UVB protection are non-negotiable on sunlit days. Take careful note! The UV radiation of the Sun can be nearly doubled by snow reflection.
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Frequently asked questions

What is the coldest month in Saint John?

Temperature records in Saint John mark January as the coldest month, with highs averaging 32.4°F (0.2°C) and lows at 18.9°F (-7.3°C).

How cold is it in Saint John in January?

During January, Saint John experiences an average high-temperature of 32.4°F (0.2°C) and a low-temperature of 18.9°F (-7.3°C).

What is the most humid month in Saint John?

With an average relative humidity of 85%, January is the most humid month in Saint John.

What is the average humidity in January in Saint John?

In Saint John, Utah, the average relative humidity in January is 85%.

How many days does it rain in January in Saint John?

In Saint John, Utah, during January, the rain falls for 7.8 days and regularly aggregates up to 1.73" (44mm) of precipitation.

When does it snow the most in Saint John?

The months with the most snowfall in Saint John, Utah, are January and December, with an average 12.99" (330mm) of accumulated snow.

How many days does it snow in January in Saint John?

In Saint John, in January, during 14.7 snowfall days, 12.99" (330mm) of snow is typically accumulated.

What is the average length of the day in January in Saint John?

In Saint John, Utah, the average day length in January is 9h and 41min.

When are sunrise and sunset in January in Saint John?

On the first day of January, sunrise is at 7:52 am and sunset at 5:13 pm. On the last day of the month, sunrise is at 7:39 am and sunset at 5:46 pm MST.

What is the month with the least sunshine in Saint John?

January has the least sunshine of the year, with an average of 5.2h of sunshine.

How long on average sun shines in January in Saint John?

In January, the average sunshine duration is 5.2h.

How high is the UV index in January in Saint John?

In Saint John, the average daily maximum UV index in January is 2. A UV Index estimate of 2, and below, represents a minimal hazard to health from unsafe exposure to Sun's UV rays.
Today
Tomorrow
Long-term
YearJanuaryFMAMJJASOND
Dec
January
Feb
Average high temperature
32.9°F 0.5°C
32.4°F 0.2°C
36.7°F 2.6°C
Average low temperature
19.8°F -6.8°C
18.9°F -7.3°C
23°F -5°C
Average pressure
30.21" 767mmHg
30.27" 769mmHg
30.13" 765mmHg
Average wind speed
6.2mph 10km/h
5.3mph 8.5km/h
6.6mph 10.6km/h
Average max. wind speed
6.6mph 10.6km/h
5.8mph 9.3km/h
7.2mph 11.6km/h
Average wind speed gusts
11.1mph 17.9km/h
9.9mph 15.9km/h
11.5mph 18.5km/h
Average humidity
79%
85%
78%
Average rainfall
1.77" 45mm
1.73" 44mm
1.65" 42mm
Average rainfall days
8.5
7.8
6.8
Average snowfall
12.99" 330mm
12.99" 330mm
10.71" 272mm
Average snowfall days
14.5
14.7
13.9
Average daylight
9h 2min
9h 4min
10h 4min
Average sunshine
5h 4min
5h 1min
6h 4min
Average sunshine days
14.1
15.3
11.6
Average UV index
1
2
2
Average cloud cover
42%
43%
42%
Average visibility
5mi 8km
4mi 6.4km
5mi 8km

Average temperature in January
Saint John, UT

Average temperature in January - Saint John, UT
  • Average high temperature in January: 32.4°F

The warmest month (with the highest average high temperature) is July (86.5°F).
The month with the lowest average high temperature is January (32.4°F).

  • Average low temperature in January: 18.9°F

The month with the highest average low temperature is July (63°F).
The coldest month (with the lowest average low temperature) is January (18.9°F).

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Average pressure in January
Saint John, UT

Average pressure in January - Saint John, UT
  • Average pressure in January: 30.27"Hg

The month with the highest atmospheric pressure is January (30.27"Hg).
The month with the lowest atmospheric pressure is June (29.87"Hg).

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Average wind speed in January
Saint John, UT

Average wind speed in January - Saint John, UT
  • Average wind speed in January: 5.3mph

The windiest month (with the highest average wind speed) is April (7.7mph).
The calmest month (with the lowest average wind speed) is January (5.3mph).

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Average humidity in January
Saint John, UT

Average humidity in January - Saint John, UT
  • Average humidity in January: 85%

The month with the highest relative humidity is January (85%).
The month with the lowest relative humidity is July (33%).

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Average rainfall in January
Saint John, UT

Average rainfall in January - Saint John, UT
  • Average rainfall in January: 1.73"

The wettest month (with the highest rainfall) is April (2.09").
The driest month (with the least rainfall) is June (0.79").

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Average rainfall days in January
Saint John, UT

Average rainfall days in January - Saint John, UT
  • Average rainfall days in January: 7.8 days

The month with the highest number of rainy days is May (13.3 days).
The month with the least rainy days is November (6.5 days).

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Average snowfall in January
Saint John, UT

Average snowfall in January - Saint John, UT
  • Average snowfall in January: 12.99"

The months with the highest snowfall are January and December (12.99").
The months with the least snowfall are June, July and August (0").

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Average snowfall days in January
Saint John, UT

Average snowfall days in January - Saint John, UT
  • Average snowfall days in January: 14.7 days

The month with the highest number of snowfall days is January (14.7 days).
The months with the least snowfall days are June, July and August (0 days).

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Average daylight in January /
Average sunshine in January
Saint John, UT

Average daylight in January / Average sunshine in January - Saint John, UT
  • 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 24min).

  • Average sunshine in January: 5h and 1min

The month with the most sunshine is August (Average sunshine: 11h and 54min).
The month with the least sunshine is January (Average sunshine: 5h and 12min).

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Average sunshine days in January
Saint John, UT

Average sunshine days in January - Saint John, UT
  • Average sunshine days in January: 15.3 days

The month with the most sunshine days is October (20.1 days).
The month with the least sunshine days is February (11.6 days).

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Average UV index in January
Saint John, UT

Average UV index in January - Saint John, UT
  • Average UV index in January: 2

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

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Average cloud cover in January
Saint John, UT

Average cloud cover in January - Saint John, UT
  • Average cloud cover in January: 43

The month with the most cloud cover is January (Cloud cover 43).
The month with the least cloud cover is August (Cloud cover 12).

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Average visibility in January
Saint John, UT

Average visibility in January - Saint John, UT
  • Average visibility in January: 4mi

The months with the highest visibility are March, April, May, June, July, August, September, October and November (6mi).
The month with the lowest visibility is January (4mi).

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Saint John, Utah, USA

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