January weather forecast and climate
Modesto, CA

Weather in January

January, the same as December, in Modesto, California, is another mild winter month, with average temperature ranging between min 41.9°F (5.5°C) and max 57.7°F (14.3°C).

Temperature

In January, the average high-temperature is relatively the same as in December - a still mild 57.7°F (14.3°C). In January, in Modesto, the average low-temperature is 41.9°F (5.5°C).

Humidity

January is the most humid month in Modesto, California, with an average relative humidity of 72%.

Rainfall

In Modesto, it is raining for 5.9 days, with typically 0.75" (19mm) of accumulated precipitation. In Modesto, during the entire year, the rain falls for 54.3 days and collects up to 6.54" (166mm) of precipitation.

Daylight

The average length of the day in Modesto is 9.9h.

Sunshine

In Modesto, the average sunshine in January is 6.3h.

UV index

Months with the lowest UV index in Modesto are January, February, November and December, with an average maximum UV index of 3. A UV Index estimate of 3 to 5 represents a medium vulnerability from the exposure to the Sun's UV rays for ordinary individuals.
Note: In January, the average maximum UV index of 3 translate into the following recommendations:
Take precautions - Protection against sun damage is advised. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes.
[Resources]

FAQ

What is the temperature in January in Modesto?

The average high-temperature, in January, in Modesto, California, is 57.7°F (14.3°C), while the average low-temperature is 41.9°F (5.5°C).

What is the most humid month in Modesto?

With an average relative humidity of 72%, January is the most humid month in Modesto.

What is the average humidity in January in Modesto?

The average relative humidity in January in Modesto is 72%.

How much does it rain in Modesto in January?

In Modesto, California, in January, it is raining for 5.9 days, with typically 0.75" (19mm) of accumulated precipitation.

How many hours of daylight does Modesto have in January?

In Modesto, the average length of the day in January is 9.9h.

How long on average sun shines in January in Modesto?

The average sunshine in January is 6.3h.

What is the month with the lowest UV index in Modesto?

Months with the lowest UV index in Modesto, California, are January, February, November and December, with an average maximum UV index of 3.

What is the UV index reading in January in Modesto?

In January, the average daily maximum UV index in Modesto, California, is 3. A UV Index of 3 to 5 symbolizes a medium hazard to health from the exposure to the Sun's UV rays.

Average temperature in January
Modesto, CA

Average temperature in January - Modesto, CA
  • Average high temperature in January: 57.7°F

The warmest month (with the highest average high temperature) is July (97.7°F).
The month with the lowest average high temperature is December (55.6°F).

  • Average low temperature in January: 41.9°F

The month with the highest average low temperature is July (62.1°F).
The coldest months (with the lowest average low temperature) are January and December (41.9°F).

[Resources]

Average pressure in January
Modesto, CA

Average pressure in January - Modesto, CA
  • Average pressure in January: 30.15"

The month with the highest atmospheric pressure is January (30.15").
The month with the lowest atmospheric pressure is June (29.91").

[Resources]

Average wind speed in January
Modesto, CA

Average wind speed in January - Modesto, CA
  • Average wind speed in January: 5.3mph

The windiest month (with the highest average wind speed) is June (7.3mph).
The calmest month (with the lowest average wind speed) is November (5.2mph).

[Resources]

Average humidity in January
Modesto, CA

Average humidity in January - Modesto, CA
  • Average humidity in January: 72%

The month with the highest relative humidity is January (72%).
The month with the lowest relative humidity is July (37%).

[Resources]

Average rainfall in January
Modesto, CA

Average rainfall in January - Modesto, CA
  • Average rainfall in January: 0.75"

The wettest month (with the highest rainfall) is March (1.3").
The driest months (with the least rainfall) are July and August (0.04").

[Resources]

Average rainfall days in January
Modesto, CA

Average rainfall days in January - Modesto, CA
  • Average rainfall days in January: 5.9 days

The month with the highest number of rainy days is March (10.3 days).
The month with the least rainy days is August (0.9 days).

[Resources]

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

Average daylight in January / Average sunshine in January - Modesto, CA
  • Average daylight in January: 9.9h

The month with the longest days is June (Average daylight: 14.7h).
The month with the shortest days is December (Average daylight: 9.6h).

  • Average sunshine in January: 6.3h

The month with the most sunshine is July (Average sunshine: 12.1h).
The month with the least sunshine is December (Average sunshine: 6h).

[Resources]

Average sunshine days in January
Modesto, CA

Average sunshine days in January - Modesto, CA
  • Average sunshine days in January: 24.1 days

The month with the most sunshine days is August (29.2 days).
The month with the least sunshine days is March (19.6 days).

[Resources]

Average UV index in January
Modesto, CA

Average UV index in January - Modesto, CA
  • Average UV index in January: 3

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

[Resources]

Average cloud cover in January
Modesto, CA

Average cloud cover in January - Modesto, CA
  • Average cloud cover in January: 30

The month with the most cloud cover is March (Cloud cover 33).
The month with the least cloud cover is July (Cloud cover 4).

[Resources]

Average visibility in January
Modesto, CA

Average visibility in January - Modesto, CA
  • Average visibility in January: 6mi

Months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
Months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).

[Resources]