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
The beginning of January records an average high-temperature of a still frosty 46.4°F (8°C), marking a negligible difference from December's 44.4°F (6.9°C). Throughout January, Phoenix witnesses a nighttime temperature average of 30.7°F (-0.7°C).Humidity
January and December, with an average relative humidity of 83%, are the most humid months.Rainfall
In Phoenix, in January, it is raining for 14 days, with typically 3.03" (77mm) of accumulated precipitation. Throughout the year, there are 130.2 rainfall days, and 19.17" (487mm) of precipitation is accumulated.Snowfall
Months with snowfall are January through April, November and December. In Phoenix, during January, snow falls for 1.8 days and regularly aggregates up to 1.89" (48mm) of snow. In Phoenix, during the entire year, snow falls for 14.2 days and aggregates up to 8.15" (207mm) of snow.Daylight
The average length of the day in January is 9h and 31min.On the first day of January, sunrise is at 7:40 am and sunset at 4:49 pm. On the last day of the month, sunrise is at 7:25 am and sunset at 5:23 pm PST.
Sunshine
The average sunshine in January is 5.4h.UV index
January, February, November and December, with an average maximum UV index of 2, are months with the lowest UV index. A UV Index reading of 2, and below, represents a minimal health hazard from unsafe exposure to UV radiation for ordinary individuals.Note: A maximum high daily UV index of 2 during January translates into the following directions:
Most people can stay in the Sun for up to 1 hour without burning, apart from children that always must be protected from sun exposure. It's crucial to reduce time in the direct Sun around mid-day due to the intense solar radiation. Employ a hat with a wide brim for robust protection, cutting UV exposure by half. Alert! The snow's reflection can amplify the UV radiation of the Sun nearly twice.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the average January temperature?
What are the most humid months?
What is the average humidity in January?
How much does it rain in January?
How many days does it snow in January?
How many hours of daylight does Phoenix have in January?
When is the sunrise / sunset in January?
How many hours of sunshine does Phoenix have in January?
When is the lowest UV index?
What is the UV index reading in January?
Average temperature in January
Phoenix, OR
- Average high temperature in January: 46.4°F
The warmest month (with the highest average high temperature) is August (85.1°F).
The month with the lowest average high temperature is December (44.4°F).
- Average low temperature in January: 30.7°F
The month with the highest average low temperature is August (49.5°F).
The coldest month (with the lowest average low temperature) is December (29.3°F).
Average pressure in January
Phoenix, OR
- Average pressure in January: 30.14"Hg
The month with the highest atmospheric pressure is January (30.14"Hg).
The month with the lowest atmospheric pressure is August (29.98"Hg).
Average wind speed in January
Phoenix, OR
- Average wind speed in January: 4.2mph
The windiest months (with the highest average wind speed) are January and March (4.2mph).
The calmest months (with the lowest average wind speed) are August, September and October (3.4mph).
Average humidity in January
Phoenix, OR
- Average humidity in January: 83%
The months with the highest relative humidity are January and December (83%).
The month with the lowest relative humidity is August (59%).
Average rainfall in January
Phoenix, OR
- Average rainfall in January: 3.03"
The wettest month (with the highest rainfall) is December (3.11").
The driest month (with the least rainfall) is July (0.2").
Average rainfall days in January
Phoenix, OR
- Average rainfall days in January: 14 days
The month with the highest number of rainy days is March (17.8 days).
The month with the least rainy days is August (3.7 days).
Average snowfall in January
Phoenix, OR
- Average snowfall in January: 1.89"
The month with the highest snowfall is February (2.64").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in January
Phoenix, OR
- Average snowfall days in January: 1.8 days
The month with the highest number of snowfall days is February (4.8 days).
The months with the least snowfall days are June, July, August and October (0 days).
Average daylight in January /
Average sunshine in January
Phoenix, OR
- Average daylight in January: 9h and 3min
The month with the longest days is June (Average daylight: 15h and 12min).
The month with the shortest days is December (Average daylight: 9h and 6min).
- Average sunshine in January: 5h and 2min
The months with the most sunshine are July and August (Average sunshine: 11h and 54min).
The month with the least sunshine is December (Average sunshine: 5h and 18min).
Average sunshine days in January
Phoenix, OR
- Average sunshine days in January: 15 days
The month with the most sunshine days is August (25.3 days).
The month with the least sunshine days is March (11.2 days).
Average UV index in January
Phoenix, OR
- Average UV index in January: 2
The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in January
Phoenix, OR
- Average cloud cover in January: 44
The month with the most cloud cover is March (Cloud cover 48).
The month with the least cloud cover is August (Cloud cover 11).
Average visibility in January
Phoenix, OR
- Average visibility in January: 5mi
The months with the highest visibility are July, August, September and October (6mi).
The months with the lowest visibility are January, February, March, April, May, June, November and December (5mi).
Phoenix, Oregon, USA
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