Sanatoga has chilly winters and warm summers
A typical July afternoon reaches 87°, a January night drops to 22°, and about 4 inches of snow falls in a normal winter.
A year in Sanatoga at a glance
Each month’s typical high and low, and what it brings.
What stands out about Sanatoga’s climate
Read from where Sanatoga sits among Pennsylvania’s towns. The page puts what stands out first.
About 186 frost-free days a year
In half of years the last 32° night comes by April 20 and the first by October 23.
Freezing nights by month
Average nights at or below 32°
90° days by month
Average days at 90° or more
4 inches of snow, 47 of rain and melt
July is the wettest month and February the driest. Rain or snow falls on about 94 days a year.
Rain + melted snow by month
Inches of water
Snowfall by month
Inches of snow
Warmer than it used to be
The last 30 years in Sanatoga averaged 1.9° warmer than the 1900s. The biggest change is in December (+3.5°).
A bigger shift than in 91% of U.S. towns.
Change by month
What a year in Sanatoga feels like
Typical highs and lows by season and by month, from NOAA’s 30-year normals.
Living with Sanatoga’s climate
What the numbers mean for a garden, a driveway, a furnace and a free afternoon.
186 frost-free days. The last frost comes by Apr 20 in half of years, so many gardeners wait a week or two past that to set out tomatoes. The first fall frost comes by Oct 23.
About 4" in a normal winter.
Months averaging under 55° run from October through April. Heating is 87% of the year’s heating-and-cooling load.
About 17 days a year reach 90°, and July afternoons average 87°.
The nicest months are April, May, June, September and October. 0.5 miles of trails are waiting.
Parks & trails →Normals are averages. Ice storms, nor’easters, floods and heat waves are on the natural hazards page.
Natural hazards →Sanatoga and its neighbors
Pottsgrove has the coldest January nights next door (22°) and Pottsgrove the hottest July afternoons (87°). Tap a town to see its climate.
Temperatures and rain come from NOAA’s 5 km grid, so each town gets its own value. Snow and frost-free days come from the nearest weather station, so neighbors often share them.
How Sanatoga compares
Against every U.S. town on TownTapestry, each counted once, with its place in Pennsylvania.
Sanatoga weather by month
Average highs, lows, rain and snow for every month, from NOAA’s 1991–2020 normals.
| Month | High | Low | Rain + melt | Snow | Wet days | 30-yr range |
|---|---|---|---|---|---|---|
| January | 39° | 22° | 3.2" | 1.4" | 8 | 22° – 38° |
| February | 43° | 24° | 2.7" | 1.9" | 5 | 22° – 40° |
| March | 51° | 31° | 3.9" | 0.6" | 9 | 35° – 50° |
| April | 64° | 40° | 3.8" | 0 | 9 | 47° – 57° |
| May | 74° | 50° | 3.8" | 0 | 9 | 57° – 68° |
| June | 82° | 60° | 4.4" | 0 | 8 | 68° – 75° |
| July | 87° | 65° | 4.9" | 0 | 8 | 72° – 80° |
| August | 85° | 63° | 4.3" | 0 | 8 | 70° – 78° |
| September | 78° | 56° | 4.8" | 0 | 7 | 64° – 71° |
| October | 66° | 44° | 4.1" | 0.1" | 7 | 50° – 62° |
| November | 54° | 34° | 3.2" | 0 | 7 | 39° – 49° |
| December | 45° | 27° | 4.0" | 0.2" | 8 | 28° – 47° |
| Year | 64° | 43° | 46.9" | 4.2" | 94 |
Heating and cooling a home in Sanatoga
87% of the work is heating, so the furnace matters far more than the air conditioner.
Degree days add up how far each day’s average falls below (heating) or rises above (cooling) 65° over a year. Source: NOAA station normals.
How much a month can swing
A normal is an average. December swings the most: from 1991 to 2020 its average ranged from 28° to 47°. September is the most reliable, staying within 7°.
Common questions about Sanatoga’s climate
What is the coldest month in Sanatoga?
January, with a typical high of 39° and a low of 22°.
What is the hottest month in Sanatoga?
July, with a typical high of 87° and a low of 65°. About 17 days a year reach 90°.
How much snow does Sanatoga get?
About 4 inches in a normal winter, most of it in February.
When is the first frost in Sanatoga?
In half of years the first 32° night comes by October 23, and the last spring frost by April 20.
What is the rainiest month in Sanatoga?
July, with 4.9 inches of rain and melted snow. The year totals 47 inches.
Neighbors talk weather
Gardens, snow, and the best days of the year in Sanatoga.
Your answer becomes a post in Town Square.
Temperatures and rainfall come from NOAA’s gridded climate normals for Sanatoga itself (about a 3-mile square). Snow, frost dates and day counts come from NOAA’s weather station at Bechtelsville 1ene, PA (9 mi, snow) and Pottstown Limerick Airport, PA (2 mi, frost, heat and degree days). Normals are 30-year averages, not a forecast. Source: NOAA NCEI U.S. Climate Normals, 1991–2020 and 1901–2000. Today’s forecast: National Weather Service.