January weather forecast
Sulphur, OK

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Weather in January

Sulphur, Oklahoma, starts the year with a cool and slightly gloomy weather. The average daytime temperature rises to 50.2°F (10.1°C) and decreases to 33.4°F (0.8°C) after sunset. Describing it as a chilly month would be accurate. Slight chances of snowfall and a visibility level that distances around 6mi (9.7km) ensure a dreamy winter landscape, ideal for an introspective winter hike. As the new year commences, residents and visitors gear up in warm jackets and snug tuques, ready to embrace the cold.

Temperature

January proves to be the coldest month in Sulphur, recording an average maximum temperature of 50.2°F (10.1°C) and a minimum temperature of 33.4°F (0.8°C).

Humidity

In January, the average relative humidity is 65%.

Rainfall

The month with the least rainfall is January, when the rain falls for 6.3 days and typically collects 1.34" (34mm) of precipitation.

Snowfall

Months with snowfall are January through April, November and December. In January, in Sulphur, it is snowing for 1 days. Throughout January, 0.31" (8mm) of snow is accumulated. Throughout the year, in Sulphur, there are 5.3 snowfall days, and 2.6" (66mm) of snow is accumulated.

Daylight

In January, the average length of the day is 10h and 10min.
On the first day of the month, sunrise is at 7:34 am and sunset at 5:28 pm. On the last day of January, in Sulphur, sunrise is at 7:26 am and sunset at 5:56 pm CST.

Sunshine

In January, the average sunshine is 6h.

UV index

The average daily maximum UV index in January is 3. A UV Index estimate of 3 to 5 represents a moderate threat to health from unsafe exposure to UV radiation for the ordinary person.
Note: The average daily UV index of 3 in January transforms into the following instructions:
Stay alert. Light-skinned people could suffer burns in less than 30 minutes. The mid-day Sun emits the most powerful UV radiation, so seek shade and minimize exposure. A hat with a generous brim can prevent nearly 50% of UV rays from reaching your eyes. Take warning! The intensity of the Sun's UV radiation can be nearly amplified twice due to snow reflection.
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Frequently asked questions

What time of the year is the coldest in Sulphur?

January, on average, is the coldest month in Sulphur, registering a high temperature of 50.2°F (10.1°C) and a low of 33.4°F (0.8°C).

What is the average January temperature in Sulphur?

In January, the average high-temperature and low-temperature are 50.2°F (10.1°C) and 33.4°F (0.8°C) respectively.

What is the average humidity in January in Sulphur?

The average relative humidity in January is 65%.

What is the driest month in Sulphur?

January is the month with the least rainfall. Rain falls for 6.3 days and accumulates 1.34" (34mm) of precipitation.

How many days does it rain in January in Sulphur?

In January, the rain falls for 6.3 days. Throughout January, 1.34" (34mm) of precipitation is accumulated.

How many days does it snow in January in Sulphur?

In Sulphur, Oklahoma, in January, during 1 snowfall days, 0.31" (8mm) of snow is typically accumulated.

What is the average length of the day in January in Sulphur?

In Sulphur, the average day length in January is 10h and 10min.

When are sunrise and sunset in January in Sulphur?

In January, on the first day of the month, sunrise is at 7:34 am and sunset at 5:28 pm. On the last day of the month, in Sulphur, sunrise is at 7:26 am and sunset at 5:56 pm CST.

How long on average sun shines in January in Sulphur?

The average sunshine duration in January in Sulphur is 6h.

How high is the UV index in January in Sulphur?

In Sulphur, Oklahoma, the average daily maximum UV index in January is 3. A UV Index of 3 to 5 symbolizes a moderate vulnerability from exposure to Sun's UV rays.
Today
Tomorrow
Long-term
YearJanuaryFMAMJJASOND
Dec
January
Feb
Average high temperature
50.5°F 10.3°C
50.2°F 10.1°C
53.2°F 11.8°C
Average low temperature
36.3°F 2.4°C
33.4°F 0.8°C
37°F 2.8°C
Average pressure
30.13" 765mmHg
30.16" 766mmHg
30.09" 764mmHg
Average wind speed
9.4mph 15.1km/h
10.1mph 16.3km/h
10.7mph 17.2km/h
Average max. wind speed
10.2mph 16.4km/h
10.9mph 17.5km/h
11.4mph 18.3km/h
Average wind speed gusts
15.6mph 25.1km/h
16.5mph 26.6km/h
17mph 27.4km/h
Average humidity
70%
65%
70%
Average rainfall
1.42" 36mm
1.34" 34mm
1.42" 36mm
Average rainfall days
7.4
6.3
8.1
Average snowfall
0.51" 13mm
0.31" 8mm
1.3" 33mm
Average snowfall days
1.1
1
2
Average daylight
9h 5min
10h 1min
11h 0min
Average sunshine
5h 3min
6h 0min
6h 5min
Average sunshine days
21
22.9
17.1
Average UV index
2
3
3
Average cloud cover
37%
31%
39%
Average visibility
6mi 9.7km
6mi 9.7km
6mi 9.7km

Average temperature in January
Sulphur, OK

Average temperature in January - Sulphur, OK
  • Average high temperature in January: 50.2°F

The warmest month (with the highest average high temperature) is August (93.4°F).
The month with the lowest average high temperature is January (50.2°F).

  • Average low temperature in January: 33.4°F

The month with the highest average low temperature is July (72.7°F).
The coldest month (with the lowest average low temperature) is January (33.4°F).

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Average pressure in January
Sulphur, OK

Average pressure in January - Sulphur, OK
  • Average pressure in January: 30.16"Hg

The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.89"Hg).

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Average wind speed in January
Sulphur, OK

Average wind speed in January - Sulphur, OK
  • Average wind speed in January: 10.1mph

The windiest months (with the highest average wind speed) are March and April (11.1mph).
The calmest month (with the lowest average wind speed) is July (7.6mph).

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Average humidity in January
Sulphur, OK

Average humidity in January - Sulphur, OK
  • Average humidity in January: 65%

The month with the highest relative humidity is May (78%).
The month with the lowest relative humidity is August (61%).

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Average rainfall in January
Sulphur, OK

Average rainfall in January - Sulphur, OK
  • Average rainfall in January: 1.34"

The wettest month (with the highest rainfall) is May (4.37").
The driest month (with the least rainfall) is January (1.34").

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Average rainfall days in January
Sulphur, OK

Average rainfall days in January - Sulphur, OK
  • Average rainfall days in January: 6.3 days

The month with the highest number of rainy days is May (14.7 days).
The month with the least rainy days is January (6.3 days).

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Average snowfall in January
Sulphur, OK

Average snowfall in January - Sulphur, OK
  • Average snowfall in January: 0.31"

The month with the highest snowfall is February (1.3").
The months with the least snowfall are May, June, July, August, September and October (0").

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Average snowfall days in January
Sulphur, OK

Average snowfall days in January - Sulphur, OK
  • Average snowfall days in January: 1 days

The month with the highest number of snowfall days is February (2 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).

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Average daylight in January /
Average sunshine in January
Sulphur, OK

Average daylight in January / Average sunshine in January - Sulphur, OK
  • Average daylight in January: 10h and 1min

The month with the longest days is June (Average daylight: 14h and 24min).
The month with the shortest days is December (Average daylight: 9h and 54min).

  • Average sunshine in January: 6h and 0min

The month with the most sunshine is July (Average sunshine: 10h and 54min).
The month with the least sunshine is December (Average sunshine: 5h and 30min).

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Average sunshine days in January
Sulphur, OK

Average sunshine days in January - Sulphur, OK
  • Average sunshine days in January: 22.9 days

The month with the most sunshine days is January (22.9 days).
The month with the least sunshine days is May (14.3 days).

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Average UV index in January
Sulphur, OK

Average UV index in January - Sulphur, OK
  • Average UV index in January: 3

The months with the highest UV index are June, July and August (UV index 7).
The month with the lowest UV index is December (UV index 2).

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Average cloud cover in January
Sulphur, OK

Average cloud cover in January - Sulphur, OK
  • Average cloud cover in January: 31

The month with the most cloud cover is March (Cloud cover 41).
The month with the least cloud cover is August (Cloud cover 21).

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Average visibility in January
Sulphur, OK

Average visibility in January - Sulphur, OK
  • 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).

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Sulphur, Oklahoma, USA

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