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 and low temperatures of 37°F (2.8°C) and 23°F (-5°C) respectively, January is Portland's coldest month.Humidity
The average relative humidity in January in Portland is 76%.Rainfall
The month with the least rainfall is January, when the rain falls for 6 days and typically collects 1.34" (34mm) of precipitation.Snowfall
Months with snowfall in Portland are January through April, October through December. In Portland, in January, during 5.6 snowfall days, 2.76" (70mm) of snow is typically accumulated. Throughout the year, there are 17.9 snowfall days, and 8.78" (223mm) of snow is accumulated.Daylight
In January, the average length of the day in Portland, Missouri, is 9h and 50min.On the first day of January in Portland, sunrise is at 7:24 am and sunset at 4:55 pm. On the last day of the month, sunrise is at 7:13 am and sunset at 5:26 pm CST.
Sunshine
The months with the least sunshine are January and February, with an average of 4.6h of sunshine.UV index
January, February, November and December, with an average maximum UV index of 2, are months with the lowest UV index in Portland. A UV Index reading of 2, and below, represents a low health risk from unsafe exposure to UV radiation for average individuals.Note: The maximum daily UV index of 2 in January interprets into the following recommendations:
Prolonged sun exposure generally does not trouble most people. However, it is vital to ensure protection for babies, children, and individuals with sensitive skin. When the Sun's UV radiation is most intense during midday, it's best to find shade and limit exposure. Sunglasses that guard against UVA and UVB rays are pivotal in minimizing sun-induced ocular damage. Remember to consider! The UV radiation from the Sun can be intensified nearly twice by the reflection of snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What month is the coldest in Portland?
How cold is January in Portland?
What is the average humidity in January in Portland?
What is the driest month in Portland?
How many days does it rain in January in Portland?
How much does it snow in Portland in January?
How many hours of daylight does Portland have in January?
When is the sunrise / sunset in January in Portland?
What is the month with the least sunshine in Portland?
How many hours of sunshine does Portland have in January?
What are the months with the lowest UV index in Portland?
How high is the UV index in January in Portland?
Average temperature in January
Portland, MO
- Average high temperature in January: 37°F
The warmest month (with the highest average high temperature) is July (87.4°F).
The month with the lowest average high temperature is January (37°F).
- Average low temperature in January: 23°F
The month with the highest average low temperature is July (67.6°F).
The coldest month (with the lowest average low temperature) is January (23°F).
Average pressure in January
Portland, MO
- 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 (29.91"Hg).
Average wind speed in January
Portland, MO
- Average wind speed in January: 9.2mph
The windiest month (with the highest average wind speed) is January (9.2mph).
The calmest month (with the lowest average wind speed) is July (5.9mph).
Average humidity in January
Portland, MO
- Average humidity in January: 76%
The month with the highest relative humidity is May (78%).
The month with the lowest relative humidity is October (72%).
Average rainfall in January
Portland, MO
- Average rainfall in January: 1.34"
The wettest month (with the highest rainfall) is May (3.58").
The driest month (with the least rainfall) is January (1.34").
Average rainfall days in January
Portland, MO
- Average rainfall days in January: 6 days
The month with the highest number of rainy days is May (16.4 days).
The month with the least rainy days is January (6 days).
Average snowfall in January
Portland, MO
- Average snowfall in January: 2.76"
The month with the highest snowfall is February (2.83").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in January
Portland, MO
- Average snowfall days in January: 5.6 days
The month with the highest number of snowfall days is January (5.6 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight in January /
Average sunshine in January
Portland, MO
- Average daylight in January: 9h and 5min
The month with the longest days is June (Average daylight: 14h and 48min).
The month with the shortest days is December (Average daylight: 9h and 30min).
- Average sunshine in January: 4h and 4min
The months with the most sunshine are June and July (Average sunshine: 10h and 24min).
The months with the least sunshine are January and February (Average sunshine: 4h and 36min).
Average sunshine days in January
Portland, MO
- Average sunshine days in January: 20.5 days
The month with the most sunshine days is January (20.5 days).
The month with the least sunshine days is May (12.3 days).
Average UV index in January
Portland, MO
- 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
Portland, MO
- Average cloud cover in January: 49
The month with the most cloud cover is February (Cloud cover 50).
The months with the least cloud cover are June, July and August (Cloud cover 29).
Average visibility in January
Portland, MO
- 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, Missouri, USA
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