January weather forecast
Isleton, CA

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Weather in January

January is a mild winter month in Isleton, California, with an average temperature ranging between max 55.9°F (13.3°C) and min 41.5°F (5.3°C).

Temperature

The weather during January records an average high-temperature of a refreshing 55.9°F (13.3°C), closely mirroring the preceding month. Throughout January, Isleton experiences a low-temperature average of 41.5°F (5.3°C).

Humidity

January and March, with an average relative humidity of 74%, are the most humid months.

Rainfall

In Isleton, in January, during 8.7 rainfall days, 1.93" (49mm) of precipitation is typically accumulated. In Isleton, California, during the entire year, the rain falls for 68.7 days and collects up to 11.18" (284mm) of precipitation.

Daylight

In January, the average length of the day in Isleton, California, is 9h and 52min.
On the first day of the month, sunrise is at 7:22 am and sunset at 4:57 pm. On the last day of January, sunrise is at 7:11 am and sunset at 5:27 pm PST.

Sunshine

In January, the average sunshine is 6.1h.

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 estimate of 3 to 5 represents a moderate threat to health from unsafe exposure to UV radiation for ordinary individuals.
Note: The average daily UV index of 3 in January transforms into the following instructions:
Take precautions - Protection against sunburn is recommended. The Sun's radiation is especially intense around midday; try to stay in shade during this period. In bright sunlight, prioritize sunglasses that grant protection from UVA and UVB radiation.
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Frequently asked questions

What is the usual temperature for Isleton in January?

The average high-temperature, in January, in Isleton, is 55.9°F (13.3°C), while the average low-temperature is 41.5°F (5.3°C).

What are the most humid months in Isleton?

January and March, with an average relative humidity of 74%, are most humid months.

What is the average humidity in January in Isleton?

In Isleton, California, the average relative humidity in January is 74%.

How much does it rain in Isleton in January?

In Isleton, in January, it is raining for 8.7 days, with typically 1.93" (49mm) of accumulated precipitation.

How many hours of daylight does Isleton have in January?

In Isleton, the average day length in January is 9h and 52min.

When are sunrise and sunset in January in Isleton?

In January, on the first day of the month, sunrise is at 7:22 am and sunset at 4:57 pm. On the last day of the month, sunrise is at 7:11 am and sunset at 5:27 pm PST.

How long on average sun shines in January in Isleton?

In January, the average sunshine duration in Isleton is 6.1h.

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

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

What is the UV index reading in January in Isleton?

In Isleton, California, the average daily maximum UV index in January is 3. A UV Index of 3 to 5 symbolizes a moderate vulnerability from unprotected exposure to UV radiation.
Average humidity
Average rainfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in January
Isleton, CA

Average temperature in January - Isleton, CA
  • Average high temperature in January: 55.9°F

The warmest month (with the highest average high temperature) is July (91°F).
The month with the lowest average high temperature is December (55°F).

  • Average low temperature in January: 41.5°F

The month with the highest average low temperature is September (58.1°F).
The coldest month (with the lowest average low temperature) is January (41.5°F).

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Average pressure in January
Isleton, CA

Average pressure in January - Isleton, CA
  • 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 June (29.91"Hg).

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Average wind speed in January
Isleton, CA

Average wind speed in January - Isleton, CA
  • Average wind speed in January: 4.8mph

The windiest month (with the highest average wind speed) is June (7.6mph).
The calmest month (with the lowest average wind speed) is November (4.7mph).

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Average humidity in January
Isleton, CA

Average humidity in January - Isleton, CA
  • Average humidity in January: 74%

The months with the highest relative humidity are January and March (74%).
The month with the lowest relative humidity is September (49%).

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Average rainfall in January
Isleton, CA

Average rainfall in January - Isleton, CA
  • Average rainfall in January: 1.93"

The wettest month (with the highest rainfall) is February (2.17").
The driest month (with the least rainfall) is August (0").

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Average rainfall days in January
Isleton, CA

Average rainfall days in January - Isleton, CA
  • Average rainfall days in January: 8.7 days

The month with the highest number of rainy days is March (13 days).
The month with the least rainy days is August (0.7 days).

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

Average daylight in January / Average sunshine in January - Isleton, CA
  • Average daylight in January: 9h and 5min

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 36min).

  • Average sunshine in January: 6h and 1min

The month with the most sunshine is July (Average sunshine: 12h and 6min).
The month with the least sunshine is December (Average sunshine: 5h and 54min).

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Average sunshine days in January
Isleton, CA

Average sunshine days in January - Isleton, CA
  • Average sunshine days in January: 21.1 days

The month with the most sunshine days is August (29.9 days).
The month with the least sunshine days is March (17.3 days).

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Average UV index in January
Isleton, CA

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

The months with the highest UV index are June, July and August (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 3).

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Average cloud cover in January
Isleton, CA

Average cloud cover in January - Isleton, CA
  • Average cloud cover in January: 34

The months with the most cloud cover are March and December (Cloud cover 35).
The month with the least cloud cover is July (Cloud cover 4).

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Average visibility in January
Isleton, CA

Average visibility in January - Isleton, 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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Isleton, California, USA

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