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
January ushers in an average high-temperature of a still frosty 48.9°F (9.4°C), aligning closely with the preceding month. During January, Pleasant Hill experiences an average low-temperature of 35.2°F (1.8°C) at night.Humidity
The months with the highest humidity are January through March and December, with an average relative humidity of 86%.Rainfall
In January, the rain falls for 16.8 days. Throughout January, 3.86" (98mm) of precipitation is accumulated. Throughout the year, in Pleasant Hill, there are 158.1 rainfall days, and 30.12" (765mm) of precipitation is accumulated.Snowfall
Months with snowfall in Pleasant Hill, Oregon, are January through April, November and December. In Pleasant Hill, during January, snow falls for 1.3 days and regularly aggregates up to 0.75" (19mm) of snow. In Pleasant Hill, during the entire year, snow falls for 6.6 days and aggregates up to 5" (127mm) of snow.Daylight
In January, the average length of the day in Pleasant Hill is 9h and 21min.On the first day of the month, sunrise is at 7:46 am and sunset at 4:44 pm. On the last day of January, in Pleasant Hill, sunrise is at 7:30 am and sunset at 5:20 pm PST.
Sunshine
The average sunshine in January in Pleasant Hill is 4.4h.UV index
The months with the lowest UV index are January, February, November and December, with an average maximum UV index of 2. A UV Index of 2, and less, symbolizes a low threat to health from unsafe exposure to UV radiation for average individuals.Note: The maximum daily UV index of 2 during January translates into the following directions:
Prolonged exposure to sunlight rarely troubles the majority, but constant protection is vital for babies, children, and fair-skinned people. The most potent solar radiation is around mid-day, so one should minimize exposure to direct sunlight during this period. Arm yourself against UV rays' harm with protective apparel and UV-filtering shades. Consider this! The reflection from snow can almost double the intensity of the Sun's UV radiation.
Frequently asked questions
What are January temperatures in Pleasant Hill?
What are the most humid months in Pleasant Hill?
What is the average humidity in January in Pleasant Hill?
How much does it rain in Pleasant Hill in January?
How many days does it snow in January in Pleasant Hill?
How many hours of daylight does Pleasant Hill have in January?
When are sunrise and sunset in January in Pleasant Hill?
How many hours of sunshine does Pleasant Hill have in January?
What is the month with the lowest UV index in Pleasant Hill?
What is the UV index reading in January in Pleasant Hill?
Average temperature in January
Pleasant Hill, OR
- Average high temperature in January: 48.9°F
The warmest month (with the highest average high temperature) is August (80.4°F).
The month with the lowest average high temperature is December (46°F).
- Average low temperature in January: 35.2°F
The month with the highest average low temperature is August (49.6°F).
The coldest month (with the lowest average low temperature) is December (33.8°F).
Average pressure in January
Pleasant Hill, OR
- Average pressure in January: 30.12"Hg
The month with the highest atmospheric pressure is January (30.12"Hg).
The months with the lowest atmospheric pressure are August and September (30.01"Hg).
Average wind speed in January
Pleasant Hill, OR
- Average wind speed in January: 4.4mph
The windiest months (with the highest average wind speed) are January and March (4.4mph).
The calmest months (with the lowest average wind speed) are August and September (3.5mph).
Average humidity in January
Pleasant Hill, OR
- Average humidity in January: 86%
The months with the highest relative humidity are January, February, March and December (86%).
The month with the lowest relative humidity is August (69%).
Average rainfall in January
Pleasant Hill, OR
- Average rainfall in January: 3.86"
The wettest month (with the highest rainfall) is December (4.57").
The driest month (with the least rainfall) is July (0.2").
Average rainfall days in January
Pleasant Hill, OR
- Average rainfall days in January: 16.8 days
The month with the highest number of rainy days is March (20.3 days).
The month with the least rainy days is August (3.5 days).
Average snowfall in January
Pleasant Hill, OR
- Average snowfall in January: 0.75"
The month with the highest snowfall is February (2.72").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in January
Pleasant Hill, OR
- Average snowfall days in January: 1.3 days
The month with the highest number of snowfall days is February (2.5 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average daylight in January /
Average sunshine in January
Pleasant Hill, OR
- Average daylight in January: 9h and 2min
The month with the longest days is June (Average daylight: 15h and 24min).
The month with the shortest days is December (Average daylight: 9h and 0min).
- Average sunshine in January: 4h and 2min
The month with the most sunshine is August (Average sunshine: 11h and 0min).
The month with the least sunshine is February (Average sunshine: 4h and 6min).
Average sunshine days in January
Pleasant Hill, OR
- Average sunshine days in January: 12.6 days
The month with the most sunshine days is August (25.6 days).
The month with the least sunshine days is February (9.1 days).
Average UV index in January
Pleasant Hill, 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
Pleasant Hill, OR
- Average cloud cover in January: 55
The month with the most cloud cover is March (Cloud cover 60).
The month with the least cloud cover is August (Cloud cover 23).
Average visibility in January
Pleasant Hill, OR
- Average visibility in January: 4mi
The months with the highest visibility are June, July, August, September and October (5mi).
The months with the lowest visibility are January, February, March, April, May, November and December (4mi).
Pleasant Hill, Oregon, USA
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