Climate and Average Weather Year Round in Port Graham, Alaska
Throughout the year, temperatures in Port Graham range from 18°F to 63°F. Annual precipitation averages 64 inches, with 80 inches of snowfall. In Port Graham, the humidity level remains comfortable throughout the summer, providing a pleasant environment for residents and visitors alike.
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Weather This Month
Climate of
Average Daily High Temperature
Note: Data is shown at the county level, which may not reflect city-level variation. Explore the USA climate map →
Best Time to Visit Port Graham Based on Comfortable Weather
Every year, Port Graham has 0 days of comfortable weather.Unfortunately, there are no days with comfortable weather in Port Graham.
The number of days per year with comfortable weather are calculated using the following criteria, which favor mild temperatures and low humidity:
- Daily high temperatures between 65ºF and 86ºF (18°C and 30°C)
- Daily maximum dew point temperatures less than or equal to 65ºF (18°C)
- Average daily cloud cover less than or equal to 65%
- Average daily wind speed less than or equal to 18 mph (5.8 m/s)
Average Temperature in Port Graham
In the summer months, the hottest month of the year in Port Graham is July, with an average high of 62°F and average low of 48°F. In the winter months, the lowest temperatures are reached in the month of January with an average high of 30°F and average low of 19°F.
Average Temperatures by Month in Port Graham
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| High | 30°F | 33°F | 36°F | 44°F | 52°F | 59°F | 62°F | 62°F | 55°F | 45°F | 35°F | 32°F |
| Average | 24°F | 27°F | 29°F | 37°F | 45°F | 51°F | 55°F | 54°F | 48°F | 39°F | 30°F | 26°F |
| Low | 19°F | 21°F | 22°F | 30°F | 37°F | 43°F | 48°F | 47°F | 41°F | 33°F | 24°F | 21°F |
Precipitation
Port Graham receives an annual precipitation of 64 inches. Precipitation includes rain and liquid equivalent of snow, hail, freezing rain, sleet. Month with most precipitation in Port Graham is December, with an average monthly precipitation of 9 inches.
Average Monthly Total Precipitation in Port Graham
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Precipitation | 6.6" | 5.4" | 4.5" | 4.5" | 2.6" | 1.6" | 2.6" | 3.8" | 7.5" | 8.2" | 8.0" | 9.1" |
Snowfall
The snowy period of the year in Port Graham lasts for 7 months. The first measurable snowfall of at least 1.0 inches in Port Graham typically starts in October with the last snowfall usually recorded in April. The month with the most snowfall in Port Graham is December, with an average snowfall of 20.4 inches. There is no snowfall in Port Graham for 5 months from May to September. Port Graham receives an annual snowfall of 80 inches.
Average Monthly Total Snowfall in Port Graham
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Snowfall | 15.9" | 13.5" | 11.2" | 4.5" | 0.4" | 0.0" | 0.0" | 0.0" | 0.2" | 3.2" | 11.1" | 20.4" |
Humidity
We use dew point to measure humidity comfort since it shows whether sweat can evaporate from our skin to cool us -
lower dew points feel drier and higher ones feel more humid. When sweat evaporates, it draws heat from our skin,
which is how our bodies naturally cool down.
Generally, if the dew point temperature is below 50ºF, humidity levels make the air feel dry.
If the dew point temperature is between 50-60ºF, moisture levels are comfortable.
When the dew point temperature exceeds 60ºF, the air will feel noticeably humid.
If the dew point temperature climbs to 70ºF or higher, the air will feel muggy and unpleasantly uncomfortable.
In Port Graham, the humidity level remains comfortable throughout the summer, providing a pleasant environment for residents and visitors alike.
Average Monthly Humidity in Port Graham
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Dewpoint Temperature | 18°F | 19°F | 20°F | 29°F | 37°F | 45°F | 49°F | 48°F | 41°F | 30°F | 22°F | 19°F |
Wind Speed
In Port Graham, the wind speed remains relatively consistent throughout the year, with an average of 8 mph in the winter months (January, February, March, and December). In the summer months (June, July, and August), the average wind speed changes to 7 mph. Overall, the variation in wind speed ranges between 7.0 mph and 8.0 mph across the months.
Average Monthly Wind speed in Port Graham
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Wind Speed | 8 | 8 | 8 | 8 | 8 | 7 | 7 | 7 | 7 | 7 | 8 | 8 |
Cloud Cover
In Port Graham, the month with the clearest sky, characterized by predominantly clear, few, and scattered clouds, is March, when the sky is clear or has few and scattered clouds 46.0% of the time. The cloudiest month of the year in Port Graham is July, when the sky is overcast or covered with broken clouds, occurring 70.0% of the time.
Average Monthly Cloud Cover in Port Graham
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Clear Sky (%) | 38 | 40 | 45 | 39 | 39 | 36 | 30 | 33 | 35 | 40 | 38 | 36 |
| Cloudier Sky (%) | 62 | 60 | 55 | 61 | 61 | 64 | 70 | 67 | 65 | 60 | 62 | 64 |
Port Graham
County: Kenai Peninsula
State: Alaska
Population: 150
Annual Temperature Range: 18°F in January to 63°F in July
Annual Precipitation: 64 inches
Annual Snowfall: 80 inches
Number of Comfortable Weather Days: 0 or 0.0 months
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Data Sources
myPerfectWeather.com uses data from the National Center for Environmental Information, with 15,000+ weather stations across the USA reporting precipitation, snowfall, humidity and temperature. The data is collected and processed over a 30-year period from 1991-2020, ensuring accuracy. A sophisticated algorithm identifies nearby weather stations for each city and calculates weather data based on a weighted average of station data, ensuring accuracy and relevance. To view the weather stations used in the calculations, simply click on the '' icon on the map. We also source population information from the US Census database and use industry-leading technology from © OpenStreetMap and Leaflet to power our maps. With these powerful tools, you can easily visualize and explore weather patterns in your area with confidence and accuracy.
The GHI and DNI data come from the U.S. National Renewable Energy Laboratory (NREL), which uses its Physical Solar Model (PSM) together with satellite observations from the GOES weather satellites. The model first calculates the theoretical amount of solar radiation based on the Sun’s position for a given location and time. It then adjusts those values using satellite measurements of real-world conditions — such as clouds, haze, smoke, and aerosols — that block or scatter sunlight. To highlight reliable patterns rather than day-to-day weather noise, the results are averaged over many years.
Sunshine hours (or Sunshine duration) per day are estimated by counting the time when direct sunlight (measured as Direct Normal Irradiance, or DNI) exceeds 120 W/m², following the World Meteorological Organization standard. Sunshine hours are calculated only during daylight and are averaged over many years to capture long-term patterns.
Climate data shown on the map is currently at the county level for performance reasons. In geographically diverse regions (such as San Diego County), this may not accurately reflect conditions in specific cities or neighborhoods.
Disclaimer
The information displayed in the visualizations on this website is provided without warranty of any kind, either expressed or implied, including without limitation, any warranty of accuracy, reliability, or suitability for any particular purpose. The weather data used in the visualizations is obtained from external sources and may contain errors resulting from factors such as equipment failures, complex data processing procedures, transmission issues, geospatial mapping to specific counties, and other defects not explicitly mentioned here. The website's creators assume no liability for any damages or losses arising from the use of the information presented on this site or for any decisions made based on such information.