Contents
- Weather in January
- Frequently asked questions
- Average temperature in January
- Average pressure in January
- Average wind speed in January
- Average humidity in January
- Average rainfall in January
- Average rainfall days in January
- Average snowfall in January
- Average snowfall days in January
- Average daylight in January
- Average sunshine in January
- Average sunshine days in January
- Average UV index in January
- Average cloud cover in January
- Average visibility in January
Weather in January
Temperature
With average high temperatures of 63.7°F (17.6°C) and lows of 52.3°F (11.3°C), January is the coldest month.Humidity
In Portland, the average relative humidity in January is 73%.Rainfall
In Portland, in January, during 8.7 rainfall days, 0.79" (20mm) of precipitation is typically accumulated. Throughout the year, there are 126.7 rainfall days, and 13.78" (350mm) of precipitation is accumulated.Snowfall
January, March through November are months without snowfall in Portland.Daylight
In January, the average length of the day in Portland is 10h and 37min.On the first day of the month, sunrise is at 7:20 am and sunset at 5:45 pm. On the last day of January, in Portland, sunrise is at 7:16 am and sunset at 6:08 pm CST.
Sunshine
In Portland, the average sunshine in January is 6h.UV index
The months with the lowest UV index are January and December, with an average maximum UV index of 4. A UV Index value of 3 to 5 symbolizes a medium vulnerability from unprotected exposure to Sun's UV rays for average individuals.Note: In January, the UV index of 4 transforms into the following advice:
Preventative actions are necessary - Recommendations to ward off sunburn are given. The Sun's most harmful UV rays are emitted around midday; avoid staying outdoors for long during this time. Equip yourself with UVA and UVB-filtering sunglasses on clear, sunny days.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are the coldest months in Portland?
What is the average January temperature in Portland?
What is the average humidity in January in Portland?
How much does it rain in Portland in January?
When it does not snow in Portland?
Does it snow in Portland in January?
What is the average length of the day in January in Portland?
When are sunrise and sunset in January in Portland?
How long on average sun shines in January in Portland?
What is the month with the lowest UV index in Portland?
How high is the UV index in January in Portland?
Average temperature in January
Portland, TX
- Average high temperature in January: 63.7°F
The warmest month (with the highest average high temperature) is August (90.9°F).
The month with the lowest average high temperature is January (63.7°F).
- Average low temperature in January: 52.3°F
The month with the highest average low temperature is August (80.8°F).
The coldest month (with the lowest average low temperature) is January (52.3°F).
Average pressure in January
Portland, TX
- Average pressure in January: 30.14"Hg
The month with the highest atmospheric pressure is January (30.14"Hg).
The months with the lowest atmospheric pressure are May and June (29.89"Hg).
Average wind speed in January
Portland, TX
- Average wind speed in January: 10.6mph
The windiest month (with the highest average wind speed) is May (12.6mph).
The calmest month (with the lowest average wind speed) is September (9.6mph).
Average humidity in January
Portland, TX
- Average humidity in January: 73%
The months with the highest relative humidity are March and May (78%).
The months with the lowest relative humidity are August and October (71%).
Average rainfall in January
Portland, TX
- Average rainfall in January: 0.79"
The wettest month (with the highest rainfall) is September (2.64").
The driest month (with the least rainfall) is February (0.51").
Average rainfall days in January
Portland, TX
- Average rainfall days in January: 8.7 days
The month with the highest number of rainy days is September (17.9 days).
The month with the least rainy days is February (7.7 days).
Average snowfall in January
Portland, TX
- Average snowfall in January: 0"
The months with the highest snowfall are February and December (0.04").
The months with the least snowfall are January, March, April, May, June, July, August, September, October and November (0").
Average snowfall days in January
Portland, TX
- Average snowfall days in January: 0 days
The month with the highest number of snowfall days is February (0.2 days).
The months with the least snowfall days are January, March, April, May, June, July, August, September, October and November (0 days).
Average daylight in January /
Average sunshine in January
Portland, TX
- Average daylight in January: 10h and 4min
The month with the longest days is June (Average daylight: 13h and 54min).
The month with the shortest days is December (Average daylight: 10h and 24min).
- Average sunshine in January: 6h and 0min
The month with the most sunshine is July (Average sunshine: 11h and 18min).
The month with the least sunshine is December (Average sunshine: 4h and 48min).
Average sunshine days in January
Portland, TX
- Average sunshine days in January: 20.1 days
The month with the most sunshine days is January (20.1 days).
The month with the least sunshine days is September (10.4 days).
Average UV index in January
Portland, TX
- Average UV index in January: 4
The months with the highest UV index are May, June, July, August and September (UV index 7).
The months with the lowest UV index are January and December (UV index 4).
Average cloud cover in January
Portland, TX
- Average cloud cover in January: 40
The months with the most cloud cover are February and December (Cloud cover 47).
The month with the least cloud cover is August (Cloud cover 20).
Average visibility in January
Portland, TX
- 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).
Portland, Texas, USA
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