January weather forecastIone, CA

January

Weather in January

January in Ione, California, is a moderate winter month, with an average temperature varying between 56.1°F (13.4°C) and 40.1°F (4.5°C).

Temperature

The average high-temperature during January registers at a refreshing 56.1°F (13.4°C), closely corresponding to the preceding month. Ione's nighttime temperature in January falls to an average of 40.1°F (4.5°C).

Humidity

The average relative humidity in January is 71%.

Rainfall

In January, the rain falls for 8.8 days. Throughout January, 2.68" (68mm) of precipitation is accumulated. Throughout the year, there are 75.1 rainfall days, and 19.06" (484mm) of precipitation is accumulated.

Snowfall

In Ione, snow does not fall in January through November.

Daylight

In Ione, the average length of the day in January is 9h and 52min.
On the first day of January, sunrise is at 7:20 am and sunset at 4:53 pm. On the last day of the month, sunrise is at 7:09 am and sunset at 5:24 pm PST.

Sunshine

In Ione, the average sunshine in January is 6.2h.

UV index

January, February, November and December, with an average maximum UV index of 3, are months with the lowest UV index. A UV Index value of 3 to 5 symbolizes a moderate threat to health from unprotected exposure to Sun's UV rays for ordinary individuals.
Note: In January, the maximum UV index of 3 suggests this advice:
Heed the precautions - It is counselled to guard against solar damage. During midday, the Sun's radiation is strongest, and it's advisable to reduce direct exposure. Protect your eyes, ears, face, and neck from the Sun by wearing a wide-brimmed hat.

Frequently asked questions

During January, Ione experiences an average high-temperature of 56.1°F (13.4°C) and a low-temperature of 40.1°F (4.5°C).

In January, the average relative humidity is 71%.

In January, the rain falls for 8.8 days. Throughout January, 2.68" (68mm) of precipitation is accumulated.

January through November are months without snowfall.

In January, it doesn't snow. December is the latest month when it typically snows.

The average day length in January is 9h and 52min.

On the first day of January, sunrise is at 7:20 am and sunset at 4:53 pm. On the last day of the month, sunrise is at 7:09 am and sunset at 5:24 pm PST.

The average sunshine duration in January is 6.2h.

The months with the lowest UV index are January, February, November and December, with an average maximum UV index of 3.

The average daily maximum UV index in January is 3. A UV Index reading of 3 to 5 represents a moderate vulnerability from unsafe exposure to Sun's UV rays.
Average high temperature
Average low temperature
Average pressure
Average wind speed
Average max. wind speed
Average wind speed gusts
Average humidity
Average rainfall
Average rainfall days
Average snowfall
Average snowfall days
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in January
Ione, CA

  • Average high temperature in January: 56.1°F

The warmest month (with the highest average high temperature) is July (92.8°F).
The month with the lowest average high temperature is December (54°F).

  • Average low temperature in January: 40.1°F

The month with the highest average low temperature is July (59.5°F).
The coldest month (with the lowest average low temperature) is December (38.8°F).

Average pressure in January
Ione, CA

  • 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
Ione, CA

  • Average wind speed in January: 4.7mph

The windiest month (with the highest average wind speed) is February (5.6mph).
The calmest months (with the lowest average wind speed) are August and September (3.9mph).

Average humidity in January
Ione, CA

  • Average humidity in January: 71%

The month with the highest relative humidity is March (74%).
The month with the lowest relative humidity is July (40%).

Average rainfall in January
Ione, CA

  • Average rainfall in January: 2.68"

The wettest month (with the highest rainfall) is March (3.7").
The driest months (with the least rainfall) are July and August (0.04").

Average rainfall days in January
Ione, CA

  • Average rainfall days in January: 8.8 days

The month with the highest number of rainy days is March (13.8 days).
The month with the least rainy days is August (1.2 days).

Average snowfall in January
Ione, CA

  • Average snowfall in January: 0"

The month with the highest snowfall is December (0.04").
The months with the least snowfall are January, February, March, April, May, June, July, August, September, October and November (0").

Average snowfall days in January
Ione, CA

  • Average snowfall days in January: 0 days

The month with the highest number of snowfall days is December (0.2 days).
The months with the least snowfall days are January, February, March, April, May, June, July, August, September, October and November (0 days).

Average daylight in January /
Average sunshine in January
Ione, CA

  • Average daylight in January: 9h and 54min

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: 6h and 12min

The month with the most sunshine is July (Average sunshine: 12h and 6min).
The month with the least sunshine is December (Average sunshine: 6h and 0min).

Average sunshine days in January
Ione, CA

  • Average sunshine days in January: 21.4 days

The months with the most sunshine days are July and August (28.8 days).
The month with the least sunshine days is March (16.3 days).

Average UV index in January
Ione, CA

  • Average UV index in January: 3

The months with the highest UV index are June and July (UV index 7).
The months with the lowest UV index are January, February, November and December (UV index 3).

Average cloud cover in January
Ione, CA

  • Average cloud cover in January: 31

The month with the most cloud cover is March (Cloud cover 36).
The month with the least cloud cover is July (Cloud cover 4).

Average visibility in January
Ione, CA

  • 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).