January weather forecast and climate
Mammoth, AZ

Weather in January

January, the same as December, in Mammoth, Arizona, is a moderate winter month, with average temperature ranging between min 39.7°F (4.3°C) and max 59°F (15°C).

Temperature

In Mammoth, the average high-temperature in January is relatively the same as in December - a still mild 59°F (15°C). In Mammoth, Arizona, the average low-temperature is 39.7°F (4.3°C).

Humidity

In January, the average relative humidity is 48%.

Rainfall

In Mammoth, during January, the rain falls for 5.2 days and regularly aggregates up to 0.87" (22mm) of precipitation. In Mammoth, during the entire year, the rain falls for 80.2 days and collects up to 10.16" (258mm) of precipitation.

Snowfall

January and February are months with snowfall in Mammoth. Months with the most snowfall in Mammoth are January and February, with an average 0.04" (1mm) of accumulated snow.

Daylight

The average length of the day in Mammoth is 10.3h.

Sunshine

In January, the average sunshine in Mammoth, Arizona, is 7h.

UV index

In Mammoth, the average daily maximum UV index is 4. A UV Index value of 3 to 5 symbolizes a moderate health risk from the exposure to the Sun's UV radiation for ordinary individuals.
Note: The average daily UV index of 4 in January transform into the following instructions:
Take precautions - Protection against sunburn is recommended. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. A wide-brim hat offers excellent sun protection for eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure. Tightly woven, loose-fitting clothes provide additional protection from the Sun. Beware! The strength of the UV rays is increased nearly double-fold by the reflection of the snow.
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FAQ

What is the temperature in January in Mammoth?

The average high-temperature, in January, in Mammoth, is 59°F (15°C), while the average low-temperature is 39.7°F (4.3°C).

What is the average humidity in January in Mammoth?

In Mammoth, the average relative humidity in January is 48%.

How much does it rain in Mammoth in January?

In Mammoth, Arizona, in January, it is raining for 5.2 days, with typically 0.87" (22mm) of accumulated precipitation.

When does it start to snow in Mammoth?

January is the first month it typically snows in Mammoth. Throughout January, in the average 0.3 snowfall days, it receives 0.04" (1mm) of snow.

What is the snowiest month in Mammoth?

Months with the most snowfall are January and February, with an average 0.04" (1mm) of accumulated snow.

How many hours of daylight does Mammoth have in January?

The average length of the day in January is 10.3h.

How many hours of sunshine does Mammoth have in January?

In January, the average sunshine in Mammoth, Arizona, is 7h.

What is the UV index reading in January in Mammoth?

In January, the average daily maximum UV index in Mammoth, Arizona, is 4. A UV Index value of 3 to 5 symbolizes a medium hazard to health from the exposure to the Sun's UV radiation.

Average temperature in January
Mammoth, AZ

Average temperature in January - Mammoth, AZ
  • Average high temperature in January: 59°F

The warmest month (with the highest average high temperature) is June (93.9°F).
The month with the lowest average high temperature is December (58.1°F).

  • Average low temperature in January: 39.7°F

The month with the highest average low temperature is July (74.8°F).
The coldest month (with the lowest average low temperature) is January (39.7°F).

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Average pressure in January
Mammoth, AZ

Average pressure in January - Mammoth, AZ
  • Average pressure in January: 30.09"

The month with the highest atmospheric pressure is January (30.09").
The month with the lowest atmospheric pressure is June (29.85").

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Average wind speed in January
Mammoth, AZ

Average wind speed in January - Mammoth, AZ
  • Average wind speed in January: 5.6mph

The windiest months (with the highest average wind speed) are April and May (7.6mph).
The calmest month (with the lowest average wind speed) is August (5.3mph).

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Average humidity in January
Mammoth, AZ

Average humidity in January - Mammoth, AZ
  • Average humidity in January: 48%

The month with the highest relative humidity is December (50%).
The month with the lowest relative humidity is June (20%).

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Average rainfall in January
Mammoth, AZ

Average rainfall in January - Mammoth, AZ
  • Average rainfall in January: 0.87"

The wettest month (with the highest rainfall) is July (1.97").
The driest months (with the least rainfall) are May and June (0.12").

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Average rainfall days in January
Mammoth, AZ

Average rainfall days in January - Mammoth, AZ
  • Average rainfall days in January: 5.2 days

The month with the highest number of rainy days is July (17 days).
The month with the least rainy days is May (2 days).

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Average snowfall in January
Mammoth, AZ

Average snowfall in January - Mammoth, AZ
  • Average snowfall in January: 0.04"

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

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Average snowfall days in January
Mammoth, AZ

Average snowfall days in January - Mammoth, AZ
  • Average snowfall days in January: 0.3 days

The month with the highest number of snowfall days is January (0.3 days).
Months with the least snowfall days are March, April, May, June, July, August, September, October, November and December (0 days).

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Average daylight in January /
Average sunshine in January
Mammoth, AZ

Average daylight in January / Average sunshine in January - Mammoth, AZ
  • Average daylight in January: 10.3h

The month with the longest days is June (Average daylight: 14.3h).
The month with the shortest days is December (Average daylight: 10h).

  • Average sunshine in January: 7h

The month with the most sunshine is August (Average sunshine: 12.2h).
The month with the least sunshine is December (Average sunshine: 6.9h).

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Average sunshine days in January
Mammoth, AZ

Average sunshine days in January - Mammoth, AZ
  • Average sunshine days in January: 25.4 days

The month with the most sunshine days is May (28.7 days).
The month with the least sunshine days is July (10 days).

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Average UV index in January
Mammoth, AZ

Average UV index in January - Mammoth, AZ
  • Average UV index in January: 4

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

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Average cloud cover in January
Mammoth, AZ

Average cloud cover in January - Mammoth, AZ
  • Average cloud cover in January: 18

The month with the most cloud cover is December (Cloud cover 21).
The month with the least cloud cover is June (Cloud cover 7).

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Average visibility in January
Mammoth, AZ

Average visibility in January - Mammoth, AZ
  • 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).

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