Stewart has chilly, snowy winters and pleasant summers, with plenty of rain
A typical July afternoon reaches 82°, a January night drops to 20°, and about 61 inches of snow falls in a normal winter.
A year in Stewart at a glance
Each month’s typical high and low, and what it brings.
What stands out about Stewart’s climate
Read from where Stewart sits among Pennsylvania’s towns. The page puts what stands out first.
61 inches of snow, 48 of rain and melt
June is the wettest month and February the driest. Rain or snow falls on about 173 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 Stewart averaged 0.9° warmer than the 1900s. The biggest change is in December (+2.3°).
A smaller shift than in 80% of U.S. towns.
Change by month
What a year in Stewart feels like
Typical highs and lows by season and by month, from NOAA’s 30-year normals.
About 171 frost-free days a year
In half of years the last 32° night comes by April 30 and the first by October 18.
Freezing nights by month
Average nights at or below 32°
90° days by month
Average days at 90° or more
Living with Stewart’s climate
What the numbers mean for a garden, a driveway, a furnace and a free afternoon.
171 frost-free days. The last frost comes by Apr 30 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 18.
About 61" a winter over 24 days with an inch or more, most in January. Snow covers the ground about 62 days a year.
Months averaging under 55° run from October through April. Heating is 90% of the year’s heating-and-cooling load.
About 12 days a year reach 90°, and July afternoons average 82°.
The nicest months are May, June, July, August, September and October. 105 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 →Stewart and its neighbors
Henry Clay has the coldest January nights next door (19°) and Springfield the hottest July afternoons (82°). 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 Stewart compares
Against every U.S. town on TownTapestry, each counted once, with its place in Pennsylvania.
Stewart 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 | Snow on ground | 30-yr range |
|---|---|---|---|---|---|---|---|
| January | 37° | 20° | 3.7" | 18.3" | 18 | 20 | 21° – 38° |
| February | 41° | 21° | 3.3" | 16.9" | 15 | 17 | 19° – 40° |
| March | 50° | 28° | 3.9" | 10.3" | 15 | 10 | 33° – 49° |
| April | 63° | 37° | 4.1" | 0.9" | 15 | 1 | 45° – 56° |
| May | 72° | 47° | 4.7" | 0 | 17 | 0 | 53° – 67° |
| June | 79° | 55° | 5.0" | 0 | 15 | 0 | 63° – 70° |
| July | 82° | 60° | 4.7" | 0 | 14 | 0 | 67° – 75° |
| August | 81° | 58° | 4.2" | 0 | 13 | 0 | 66° – 74° |
| September | 75° | 51° | 3.9" | 0 | 12 | 0 | 60° – 68° |
| October | 64° | 40° | 3.4" | 0.2" | 12 | 0 | 49° – 58° |
| November | 52° | 31° | 3.3" | 3.7" | 13 | 3 | 35° – 47° |
| December | 41° | 25° | 3.8" | 10.9" | 16 | 12 | 22° – 44° |
| Year | 61° | 39° | 48.1" | 61.2" | 173 | 62 |
Heating and cooling a home in Stewart
90% 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 22° to 44°. June is the most reliable, staying within 7°.
Common questions about Stewart’s climate
What is the coldest month in Stewart?
January, with a typical high of 37° and a low of 20°.
What is the hottest month in Stewart?
July, with a typical high of 82° and a low of 60°. About 12 days a year reach 90°.
How much snow does Stewart get?
About 61 inches in a normal winter, most of it in January.
When is the first frost in Stewart?
In half of years the first 32° night comes by October 18, and the last spring frost by April 30.
What is the rainiest month in Stewart?
June, with 5.0 inches of rain and melted snow. The year totals 48 inches.
Neighbors talk weather
Gardens, snow, and the best days of the year in Stewart.
Your answer becomes a post in Town Square.
Temperatures and rainfall come from NOAA’s gridded climate normals for Stewart itself (about a 3-mile square). Snow, frost dates and day counts come from NOAA’s weather station at Confluence 1 Sw Dam, PA (8 mi) away. 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.