The best times to visit Interior Alaska for ideal weather are
May 28th to August 19th
based on average temperature and humidity from NOAA (the National Oceanic and Atmospheric Administration). Read below for more weather and travel details.
Interior Alaska Travel Guide
Other Interior Alaska Travel Info
Weather in Interior Alaska
Temperature
Average temperatures in Interior Alaska vary an incredible amount. Considering humidity, temperatures feel cold for most of the year with a chance of rain or snow throughout most of the year. The area is less temperate than some — in the 12th percentile for pleasant weather — compared to tourist destinations worldwide. Weeks with ideal weather are listed above. If you’re looking for the very warmest time to visit Interior Alaska, the hottest months are July, June, and then August. See average monthly temperatures below. The warmest time of year is generally early July where highs are regularly around 76.1°F (24.5°C) with temperatures rarely dropping below 49.3°F (9.6°C) at night.
Interior Alaska Temperatures (Fahrenheit)
Key
Interior Alaska Temperatures (Celsius)
Key
“Feels-Like” Temperatures
The way we experience weather isn’t all about temperature. Higher temperatures affect us much more at higher humidity, and colder temperatures feel piercing with high winds. Our perceived temperatures factor in humidity and wind chill to better represent how hot or cold the day feels to a person.
Interior Alaska Perceived Temperature (F)
Key
Interior Alaska Perceived Temperature (C)
Key
Average Interior Alaska Temperatures by Month
Daily highs (averaged for the month) usually give the best indication of the weather. A significantly lower mean and low generally just means it gets colder at night.
Show Fahrenheit
| Month | Avg. High (°F) | Avg. Mean (°F) | Avg. Low (°F) |
|---|---|---|---|
| Jan | 7.8 | -3.2 | -12 |
| Feb | 16.5 | 3.1 | -7.3 |
| Mar | 24.3 | 9.2 | -4 |
| Apr | 47.7 | 32.5 | 19.5 |
| May | 64.3 | 50.5 | 35.5 |
| Jun | 72.5 | 59.7 | 45.9 |
| Jul | 73.7 | 61.3 | 49.1 |
| Aug | 69.6 | 56.2 | 45.6 |
| Sep | 60.5 | 45.3 | 35.6 |
| Oct | 38.9 | 27 | 19.4 |
| Nov | 17.1 | 6.5 | -2.4 |
| Dec | 8.4 | -1.7 | -10.3 |
Show Celsius
| Month | Avg. High (°C) | Avg. Mean (°C) | Avg. Low (°C) |
|---|---|---|---|
| Jan | -13.4 | -19.6 | -24.4 |
| Feb | -8.6 | -16.1 | -21.8 |
| Mar | -4.3 | -12.7 | -20 |
| Apr | 8.7 | 0.3 | -6.9 |
| May | 17.9 | 10.3 | 1.9 |
| Jun | 22.5 | 15.4 | 7.7 |
| Jul | 23.2 | 16.3 | 9.5 |
| Aug | 20.9 | 13.4 | 7.6 |
| Sep | 15.8 | 7.4 | 2 |
| Oct | 3.8 | -2.8 | -7 |
| Nov | -8.3 | -14.2 | -19.1 |
| Dec | -13.1 | -18.7 | -23.5 |
Precipitation (Rain or Snow)
If dry weather is what you’re after, the months with the lowest chance of significant precipitation in Interior Alaska are May, June, and then July. Note that we define “significant precipitation” as .1 inches or more in this section. The lowest chance of rain or snow occurs around late May. For example, on the week of May 21st there are 2 days of precipitation on average. By contrast, it’s most likely to rain or snow in late October to early November with an average of 5 days of significant precipitation the week of October 29th.
When can you find snow in Interior Alaska? Weather stations report large amounts of snow likely to be deepest around December, especially close to late December. The best time to ski (if at all) in Interior Alaska is often around around December 17th when fresh powder is deepest. Please note that a value of 0 for snow in the graph below may either mean there was no snow, or that snow is unreported.
Chance of Precipitation
The graph below shows the % chance of rainy and snowy days in Interior Alaska.
Key
Snow on the Ground
The graph below shows the average snow on the ground in Interior Alaska (in).
Key
Average Rain and Snow by Month
Show Inches
| Month | Daily Chance of Rain | Average Snow Depth (in) | Total Precipitation (in) |
|---|---|---|---|
| Jan | 54% | 2.1 | 9.3 |
| Feb | 48% | 2.7 | 7.2 |
| Mar | 53% | 1.8 | 8 |
| Apr | 44% | 0 | 7.5 |
| May | 32% | 0 | 5.6 |
| Jun | 37% | 0 | 5.6 |
| Jul | 39% | 0 | 6.8 |
| Aug | 48% | 0 | 9.1 |
| Sep | 57% | 0 | 11.3 |
| Oct | 60% | 0 | 14.2 |
| Nov | 65% | 1.9 | 11 |
| Dec | 52% | 7.2 | 9.1 |
Show Centimeters
| Month | Daily Chance of Rain | Average Snow Depth (cm) | Total Precipitation (cm) |
|---|---|---|---|
| Jan | 54 | 5.3 | 23.6 |
| Feb | 48 | 6.9 | 18.3 |
| Mar | 53 | 4.6 | 20.3 |
| Apr | 44 | 0 | 19.1 |
| May | 32 | 0 | 14.2 |
| Jun | 37 | 0 | 14.2 |
| Jul | 39 | 0 | 17.3 |
| Aug | 48 | 0 | 23.1 |
| Sep | 57 | 0 | 28.7 |
| Oct | 60 | 0 | 36.1 |
| Nov | 65 | 4.8 | 27.9 |
| Dec | 52 | 18.3 | 23.1 |
Humidity and Wind
Interior Alaska has some humid months, and slightly dry months in the opposite season. The least humid month is May (35% relative humidity), and the most humid month is October (67.6%).
Wind in Interior Alaska is usually calm. The windiest month is February, followed by March and January. February’s average wind speed of around 4.8 knots (5.5 MPH or 8.9 KPH) is considered “a light breeze.” Maximum sustained winds (the highest speed for the day lasting more than a few moments) are at their highest in early March where average top sustained speeds reach 14.8 knots, which is considered a moderate breeze.
Relative Humidity (%)
The graph below shows the average % humidity by month in Interior Alaska.
Key
Wind
The graph below shows wind speed (max and average) in knots.
Key
Average Wind Speeds
Show Wind Speeds
All wind speeds are in knots. 1 knot = 1.15 MPH or 1.85 KPH.
| Month | Avg. Wind | Avg. Wind Feel | Sustained High Wind | High Wind Feel |
| Jan | 4.5 | Light breeze | 14 | Significant breeze |
| Feb | 4.8 | Light breeze | 13.1 | Significant breeze |
| Mar | 4.6 | Light breeze | 13.2 | Significant breeze |
| Apr | 4.5 | Light breeze | 12.5 | Significant breeze |
| May | 4.3 | Light breeze | 11.5 | Significant breeze |
| Jun | 3.9 | Barely noticeable | 10.4 | Gentle breeze |
| Jul | 3.6 | Barely noticeable | 10.1 | Significant breeze |
| Aug | 3.4 | Barely noticeable | 10 | Gentle breeze |
| Sep | 3.9 | Barely noticeable | 11.4 | Significant breeze |
| Oct | 3.9 | Barely noticeable | 12.8 | Significant breeze |
| Nov | 4.1 | Light breeze | 13.6 | Significant breeze |
| Dec | 4.4 | Light breeze | 13.3 | Significant breeze |
Show Relative Humidity by Month
| Month | Avg. Relative Humidity |
|---|---|
| Jan | 57.7% |
| Feb | 55.1% |
| Mar | 44.8% |
| Apr | 40.9% |
| May | 35% |
| Jun | 49.3% |
| Jul | 56.1% |
| Aug | 62.8% |
| Sep | 61.9% |
| Oct | 67.6% |
| Nov | 65.9% |
| Dec | 60.9% |
Is it Safe to Travel to Interior Alaska?
Our best data indicates this area is generally safe. As of Dec 04, 2023 there are no travel advisories or warnings for the United States; exercise normal security precautions. Check this page for any recent changes or regions to avoid: Travel Advice and Advisories. This advisory was last updated on Dec 04, 2023.
The Busiest and Least Crowded Months
The busiest month for tourism in Interior Alaska, the United States is July, followed by August and June. Prices for hotels and flights will be most expensive during these months, though you can save if you purchase well in advance. Tourists are unlikely to visit Interior Alaska in November. Those willing to visit at these times will likely find it the least expensive month.
Estimated Tourism by Month
Most Popular Months to Visit
Key
Overall Interior Alaska Travel Experience by Season
Spring (March through May)
Humidity and temperatures combine to make this season feel very cold. Highs range from 71.9°F (22.2°C) and 16.5°F (-8.6°C) with far warmer temperatures in the later months. Rain is frequent with 10 to 16 days of significant precipitation per month. Spring is the second busiest for tourism, which makes it a good time for those looking for things to do.
Summer (June through August)
The middle-year months have comfortably cool weather with high temperatures that are comfortable. These months see the least precipitation with 11 to 15 days of precipitation per month. June – August is the busiest season for tourism in Interior Alaska, so lodging and other accommodations may cost more than usual.
Fall (September through November)
Fall daily highs range from 66.3°F (19.1°C) and 9.1°F (-12.7°C), which will feel very chilly given the humidity and wind. It rains or snows a great amount: 17 to 19 days per month. Tourism is the slowest during these months due to the weather, so hotels may be affordably priced.
Winter (December through February)
Weather is far too cold this time of year in Interior Alaska to be enjoyable for warm weather travelers. The average high during this season is between 21.9°F (-5.6°C) and 5.3°F (-14.8°C). On average, it rains or snows a very great amount: 13 to 17 times per month. These times of year are fairly slow with tourists.
Best Times to Travel› the United States › Interior Alaska, the United States