Contents
- Weather in January
- Frequently asked questions
- Average temperature in January
- Average pressure in January
- Average wind speed in January
- Average humidity in January
- Average rainfall in January
- Average rainfall days in January
- Average snowfall in January
- Average snowfall days in January
- Average daylight in January
- Average sunshine in January
- Average sunshine days in January
- Average UV index in January
- Average cloud cover in January
- Average visibility in January
Weather in January
Temperature
Girdwood's January weather reaches an average high of 18°F (-7.8°C) and an average low of 7.5°F (-13.6°C), making it the coldest month.Humidity
In Girdwood, the average relative humidity in January is 90%.Rainfall
January is the month with the least rainfall in Girdwood, Alaska. Rain falls for 7.1 days and accumulates 1.14" (29mm) of precipitation.Snowfall
Months with snowfall in Girdwood are January through May, September through December. In Girdwood, in January, during 12.6 snowfall days, 5.87" (149mm) of snow is typically accumulated. Throughout the year, there are 92.4 snowfall days, and 43.31" (1100mm) of snow is accumulated.Daylight
In January, the average length of the day is 6h and 39min.On the first day of the month, sunrise is at 10:07 am and sunset at 3:52 pm. On the last day of January, sunrise is at 9:17 am and sunset at 5:02 pm AKST.
Sunshine
In January, the average sunshine is 2.7h.UV index
The months with the lowest UV index in Girdwood are January through March, October through December, with an average maximum UV index of 1. A UV Index value of 2, and less, symbolizes a low threat to health from unsafe exposure to UV radiation for the ordinary person.Note: A maximum high daily UV index of 1 during January translates into the following directions:
While most individuals can withstand prolonged sun exposure, it is imperative that babies, children, and those with sensitive skin always be shielded. Direct exposure to the Sun's intense radiation around midday should be avoided for health reasons. 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. Heed this! Snow reflection can almost augment the UV radiation of the sun by double.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What time of the year is the coldest?
How cold is it in January?
What is the average humidity in January?
What is the driest month?
How many days does it rain in January?
How many days does it snow in January?
What is the average length of the day in January?
When are sunrise and sunset in January?
How many hours of sunshine does Girdwood have in January?
What are the months with the lowest UV index?
What is the UV index reading in January?
Average temperature in January
Girdwood, AK
- Average high temperature in January: 18°F
The warmest month (with the highest average high temperature) is July (56.8°F).
The month with the lowest average high temperature is January (18°F).
- Average low temperature in January: 7.5°F
The month with the highest average low temperature is July (44.1°F).
The coldest month (with the lowest average low temperature) is January (7.5°F).
Average pressure in January
Girdwood, AK
- Average pressure in January: 29.69"Hg
The month with the highest atmospheric pressure is July (29.97"Hg).
The month with the lowest atmospheric pressure is November (29.66"Hg).
Average wind speed in January
Girdwood, AK
- Average wind speed in January: 5.7mph
The windiest months (with the highest average wind speed) are November and December (5.9mph).
The calmest month (with the lowest average wind speed) is July (4.7mph).
Average humidity in January
Girdwood, AK
- Average humidity in January: 90%
The months with the highest relative humidity are March and December (92%).
The month with the lowest relative humidity is June (79%).
Average rainfall in January
Girdwood, AK
- Average rainfall in January: 1.14"
The wettest month (with the highest rainfall) is October (3.03").
The driest month (with the least rainfall) is January (1.14").
Average rainfall days in January
Girdwood, AK
- Average rainfall days in January: 7.1 days
The month with the highest number of rainy days is August (21.8 days).
The month with the least rainy days is February (6 days).
Average snowfall in January
Girdwood, AK
- Average snowfall in January: 5.87"
The month with the highest snowfall is December (9.57").
The months with the least snowfall are June, July and August (0").
Average snowfall days in January
Girdwood, AK
- Average snowfall days in January: 12.6 days
The month with the highest number of snowfall days is December (17.6 days).
The months with the least snowfall days are June, July and August (0 days).
Average daylight in January /
Average sunshine in January
Girdwood, AK
- Average daylight in January: 6h and 4min
The month with the longest days is June (Average daylight: 19h and 6min).
The month with the shortest days is December (Average daylight: 5h and 42min).
- Average sunshine in January: 2h and 4min
The month with the most sunshine is May (Average sunshine: 8h and 30min).
The month with the least sunshine is December (Average sunshine: 2h and 6min).
Average sunshine days in January
Girdwood, AK
- Average sunshine days in January: 14.2 days
The month with the most sunshine days is January (14.2 days).
The month with the least sunshine days is August (8 days).
Average UV index in January
Girdwood, AK
- Average UV index in January: 1
The months with the highest UV index are June and July (UV index 3).
The months with the lowest UV index are January, February, March, October, November and December (UV index 1).
Average cloud cover in January
Girdwood, AK
- Average cloud cover in January: 61
The month with the most cloud cover is December (Cloud cover 70).
The month with the least cloud cover is May (Cloud cover 55).
Average visibility in January
Girdwood, AK
- Average visibility in January: 4mi
The month with the highest visibility is June (6mi).
The months with the lowest visibility are January, February, March, April, October, November and December (4mi).
Girdwood, Alaska, USA
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