Geistown (PA) Temperature by Month

The average annual maximum temperature in Geistown, Pennsylvania, United States of America is 15°C (59°F), with daytime highs ranging from 1°C (34°F) in January to 27°C (81°F) in July. This page covers monthly averages, day-night differences, and how Geistown compares to cities worldwide.

The weather in Geistown experiences significant differences between warm and cold seasons, with big shifts in temperature. At night, minimum temperatures range from 16°C (61°F) in July to -8°C (18°F) in January.

The chart below illustrates the average maximum day and minimum night temperatures in Geistown by month:

Low temperatures are most often recorded between 4 AM and 6 AM, while highs typically occur around 3 PM. July, the city's warmest month, sees 255 hours of sunshine.

The chart below shows the average temperature throughout the year:

Geistown's average annual maximum temperature is 15°C (59°F). To put that in context, here's how it compares to a few well-known destinations:

Seville, Spain averages 23°C (73°F) a year, one of the warmer cities in Western Europe, with long hot summers.

Queenstown, New Zealand averages 10°C (50°F) annually, remember seasons are flipped, so its coldest months fall in June and July.

San Francisco, USA averages 19°C (66°F) annually, but with little seasonal variation, summers are often cool and foggy, winters mild.

Adelaide, Australia averages 21°C (70°F) a year, with warm summers, mild winters, and relatively low rainfall year-round.

Climate temperature data is typically calculated as a 30-year average. This smooths out year-to-year variability and gives a more reliable picture of what a place is actually like, rather than what happened in any single unusual year.

The readings come from a range of sources, land-based weather stations, ocean buoys, ships, and satellites. That data is collected by weather services around the world, then pooled, quality-checked, and averaged to produce the climate records you see here.

For cities and regions with significant elevation, altitude is one of the biggest factors shaping local temperatures. As a rule of thumb, temperatures fall by around 6°C for every 1,000 metres gained, so a city at 2,000 metres will typically be around 12°C cooler than a city at sea level in the same region. Higher ground also tends to see more dramatic day-to-night temperature swings, since thinner air loses heat faster after sunset.

For more on Geistown's weather, including monthly rainfall, sunshine hours, and humidity, visit our Geistown climate page.