Park climate1991–2020 climate normals391 m source elevationNASA POWER

Long-term monthly averages for temperature, precipitation, humidity, wind, and daylight

Glacier Bay National Park and Preserve: monthly climate

Name: Glacier Bay National Park and Preserve monthly climate normals
Creator: NASA POWER

At the representative location for Glacier Bay National Park and Preserve, monthly mean temperatures range from -3 to 11 °C (1991–2020). Compare precipitation, humidity, wind, and daylight for each month.

View park overview Browse climate zones

Annual climate pattern

Comparing monthly temperature fluctuations and average daily precipitation across a twelve-month cycle

Annual Climate Patterns and Monthly Temperatures in Glacier Bay National Park and Preserve

In Glacier Bay National Park and Preserve, average mean temperatures peak in August at 10.97 degrees Celsius, while average minimums drop lowest in January. Average daily precipitation rates shift across the year from a low in June to a peak in October, based on long-term climate normals at a representative park coordinate.

Mean temperatureAverage minimum–maximum rangePrecipitation

Annual mean: 3.3 °C
Warmest month: August
Coolest month: January
Wettest month: October

Twelve-month climate

Long-term monthly climate data spanning temperature bounds, daily precipitation, wind, and daylight

Glacier Bay National Park and Preserve Monthly Climate Normals and Weather by Month

Comparing twelve monthly intervals for Glacier Bay National Park and Preserve reveals the seasonal shifts in average minimum, mean, and maximum temperatures alongside the average daily precipitation rate. Reviewing local values alongside relative humidity, average wind speed, and calculated daylight hours at a representative coordinate of 391.13 meters provides a clear baseline of the subarctic landscape.

	Mean temperature	Precipitation	Humidity	Wind speed	Daylight
January	-3 °C-15.1° to 3.3°	12.8 mm/day	90.2%	5.5 m/s	6.9 hours
February	-2.4 °C-12.3° to 3.2°	11.2 mm/day	87.5%	5 m/s	9 hours
March	-1.9 °C-12° to 3.5°	9.4 mm/day	85.4%	5 m/s	11.5 hours
April	1.7 °C-5° to 6.4°	8.7 mm/day	84.8%	3.8 m/s	14.1 hours
May	5 °C0.6° to 10.2°	7 mm/day	84.9%	3 m/s	16.5 hours
June	8.4 °C4° to 16.2°	5.4 mm/day	86.7%	2.7 m/s	17.9 hours
July	10.8 °C7.2° to 17.4°	6.4 mm/day	88.5%	2.7 m/s	17.2 hours
August	11 °C7.4° to 17.8°	9.9 mm/day	88%	3 m/s	15.1 hours
September	8.2 °C3.8° to 13.5°	14.4 mm/day	87.8%	3.8 m/s	12.4 hours
October	4.1 °C-1.8° to 8.9°	16.2 mm/day	88.2%	4.7 m/s	9.8 hours
November	-0.2 °C-9.5° to 4.7°	14.8 mm/day	89.4%	5.4 m/s	7.4 hours
December	-1.7 °C-12.2° to 3.7°	15.3 mm/day	90.6%	5.6 m/s	6.1 hours

Compare two months

See two months side by side and how much they differ. Both use the same 1991–2020 climate normals and NASA POWER data point as the table above, so they show typical conditions, not a forecast.

First month

Second month

Mean temperature: January: -3 °C; August: 11 °C; Change from January to August: +14 °C
Precipitation: January: 12.8 mm/day; August: 9.9 mm/day; Change from January to August: -2.9 mm/day
Daylight: January: 6.9 hours; August: 15.1 hours; Change from January to August: +8.2 hours

Calculated climate highlights

Comparing long-term monthly averages to identify the seasonal shifts in temperature, wind speed, and precipitation rates

Glacier Bay National Park and Preserve Monthly Climate Highlights and Annual Contrasts

Long-term climatology records reveal how Glacier Bay National Park and Preserve transitions through its warmest, coolest, wettest, and driest phases based on monthly average trends. Baseline data from a representative coordinate establish comparative benchmarks for humidity, wind, and daylight duration without representing absolute weather records or uniform reserve-wide conditions.

Warmest month: August11 °C
Coolest month: January-3 °C
Wettest month: October16.2 mm/day
Driest month: June5.4 mm/day
Most humid month: December90.6%
Windiest month: December5.6 m/s
Longest daylight: June17.9 hours

Interactive climate map

National park climate map

Open the climate map to compare monthly temperature, precipitation, and other averages.

Global National Park Climate Map

Other park climates

Contrast monthly atmospheric patterns and precipitation rhythms across diverse protected landscapes.

Compare Glacier Bay National Park and Preserve Climate Normals with Other Parks

Browsing the monthly climate normals of other protected areas provides a broader geographic perspective after studying the seasonal cycle of Glacier Bay National Park and Preserve. Comparing standardized temperature, precipitation, humidity, wind, and daylight metrics across different latitudes and elevations highlights the unique atmospheric contrasts of each landscape.