January weather forecast
Jamacha, CA

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Weather in January

January, the same as December, is another comfortable winter month in Jamacha, California, with an average temperature ranging between max 64.6°F (18.1°C) and min 47.8°F (8.8°C).

Temperature

The transition from December to January sees average high-temperatures adjusting to a still refreshing 64.6°F (18.1°C), from a not significantly different 63°F (17.2°C). During the month of January, Jamacha's nighttime temperature lowers to an average of 47.8°F (8.8°C).

Humidity

In Jamacha, the average relative humidity in January is 54%.

Rainfall

In Jamacha, in January, during 5.7 rainfall days, 1.1" (28mm) of precipitation is typically accumulated. In Jamacha, California, during the entire year, the rain falls for 60.6 days and collects up to 8.66" (220mm) of precipitation.

Daylight

In Jamacha, the average length of the day in January is 10h and 17min.
On the first day of January, sunrise is at 6:49 am and sunset at 4:52 pm. On the last day of the month, sunrise is at 6:43 am and sunset at 5:19 pm PST.

Sunshine

In January, the average sunshine is 6.9h.

UV index

In Jamacha, the average daily maximum UV index in January is 4. A UV Index estimate of 3 to 5 represents a moderate threat to health from unsafe exposure to UV radiation for the average person.
Note: A daily high UV index of 4 in January leads to these guidelines:
Safety measures are advised. Light-skinned individuals may experience burns in under half an hour. The Sun is at its harshest during midday; protect yourself by staying in shaded areas and minimizing exposure. Equip yourself with UVA and UVB-filtering sunglasses on clear, sunny days.
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Frequently asked questions

What is the temperature in January in Jamacha?

In Jamacha, in January, the average high-temperature is 64.6°F (18.1°C), and the average low-temperature is 47.8°F (8.8°C).

What is the average humidity in January in Jamacha?

In January, the average relative humidity in Jamacha is 54%.

How many days does it rain in January in Jamacha?

In Jamacha, in January, during 5.7 rainfall days, 1.1" (28mm) of precipitation is typically accumulated.

How many hours of daylight does Jamacha have in January?

The average day length in January in Jamacha is 10h and 17min.

When is the sunrise / sunset in January in Jamacha?

On the first day of January in Jamacha, sunrise is at 6:49 am and sunset at 4:52 pm. On the last day of the month, sunrise is at 6:43 am and sunset at 5:19 pm PST.

How long on average sun shines in January in Jamacha?

In Jamacha, California, the average sunshine duration in January is 6.9h.

What is the UV index intensity in January in Jamacha?

The average daily maximum UV index in January is 4. A UV Index of 3 to 5 symbolizes a medium health risk from unsafe exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in January
Jamacha, CA

Average temperature in January - Jamacha, CA
  • Average high temperature in January: 64.6°F

The warmest month (with the highest average high temperature) is August (84.2°F).
The month with the lowest average high temperature is December (63°F).

  • Average low temperature in January: 47.8°F

The month with the highest average low temperature is August (66.2°F).
The coldest months (with the lowest average low temperature) are February and December (47.3°F).

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Average pressure in January
Jamacha, CA

Average pressure in January - Jamacha, CA
  • Average pressure in January: 30.08"Hg

The month with the highest atmospheric pressure is January (30.08"Hg).
The months with the lowest atmospheric pressure are June and September (29.87"Hg).

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Average wind speed in January
Jamacha, CA

Average wind speed in January - Jamacha, CA
  • Average wind speed in January: 5mph

The windiest months (with the highest average wind speed) are April and May (5.5mph).
The calmest months (with the lowest average wind speed) are September and October (4.3mph).

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Average humidity in January
Jamacha, CA

Average humidity in January - Jamacha, CA
  • Average humidity in January: 54%

The month with the highest relative humidity is May (65%).
The month with the lowest relative humidity is November (52%).

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Average rainfall in January
Jamacha, CA

Average rainfall in January - Jamacha, CA
  • Average rainfall in January: 1.1"

The wettest month (with the highest rainfall) is February (1.81").
The driest month (with the least rainfall) is June (0.08").

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Average rainfall days in January
Jamacha, CA

Average rainfall days in January - Jamacha, CA
  • Average rainfall days in January: 5.7 days

The month with the highest number of rainy days is March (7.7 days).
The month with the least rainy days is June (1.3 days).

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

Average daylight in January / Average sunshine in January - Jamacha, CA
  • Average daylight in January: 10h and 2min

The month with the longest days is June (Average daylight: 14h and 18min).
The month with the shortest days is December (Average daylight: 10h and 0min).

  • Average sunshine in January: 6h and 5min

The months with the most sunshine are June and July (Average sunshine: 12h and 6min).
The month with the least sunshine is December (Average sunshine: 6h and 42min).

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Average sunshine days in January
Jamacha, CA

Average sunshine days in January - Jamacha, CA
  • Average sunshine days in January: 24.5 days

The month with the most sunshine days is June (27.8 days).
The month with the least sunshine days is July (20.3 days).

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Average UV index in January
Jamacha, CA

Average UV index in January - Jamacha, CA
  • Average UV index in January: 4

The months with the highest UV index are June, July, August and September (UV index 6).
The month with the lowest UV index is December (UV index 3).

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Average cloud cover in January
Jamacha, CA

Average cloud cover in January - Jamacha, CA
  • Average cloud cover in January: 20

The months with the most cloud cover are March and December (Cloud cover 23).
The month with the least cloud cover is August (Cloud cover 6).

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Average visibility in January
Jamacha, CA

Average visibility in January - Jamacha, 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).

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Jamacha, California, USA

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