Weather and Climate
There are two distinct climates in the park, separated by the Alaska Range. They differ not only in physical measurements, but also in the types of vegetation and landscape features they produce. The transitional maritime climate on the south side of the Alaska Range is influenced by the prevailing weather patterns of the Gulf of Alaska, with milder air temperatures with less seasonal variation and more precipitation. Temperatures in the northern regions of the park are typical of an interior climate with very warm summers and cold winters. Precipitation on the north side is relatively low.
Climate has a dominant influence on the ecology of Denali, and understanding the key relationships affecting climate patterns plays a critical role in understanding and predicting physical and ecological changes within the park. The most direct and profound effects are likely to include changes in temperature and precipitation.
Learn more about climate monitoring in Denali.
Denali Weather Statistics
We have a rich history of climate data from Denali. Park staff have been recording daily weather observations at a site near headquarters since 1925. This is one of the few sites in the state with such a long and valuable record. We use information from this site to place current weather observations into context by comparing them to “normal” conditions. A climate ‘normal’ is defined as the average climate over a 30-year period. The latest normal period is 1981-2010 (they are updated every 10 years). The entire record (1925-present) is used to identify the extremes.
Denali Park Headquarters – Average Annual /Seasonal Temperature and Precipitation
Denali Park Headquarters – Average Monthly Temperature and Precipitation
Denali Park Headquarters – Average Monthly Snowfall Totals and Snow Depth
Denali Extremes – Park Headquarters
Last updated: March 23, 2018