Rossiter has chilly, snowy winters and pleasant summers
A typical July afternoon reaches 81°, a January night drops to 17°, and about 35 inches of snow falls in a normal winter.
A year in Rossiter at a glance
Each month’s typical high and low, and what it brings.
What stands out about Rossiter’s climate
Read from where Rossiter sits among Pennsylvania’s towns. The page puts what stands out first.
Living with Rossiter’s climate
What the numbers mean for a garden, a driveway, a furnace and a free afternoon.
155 frost-free days. The last frost comes by May 10 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 12.
About 35" a winter over 12 days with an inch or more, most in January.
Months averaging under 55° run from October through April. Heating is 93% of the year’s heating-and-cooling load.
About 7 days a year reach 90°, and July afternoons average 81°.
The nicest months are May, June, July, August and September.
Parks & trails →Normals are averages. Ice storms, nor’easters, floods and heat waves are on the natural hazards page.
Natural hazards →About 155 frost-free days a year
In half of years the last 32° night comes by May 10 and the first by October 12.
Freezing nights by month
Average nights at or below 32°
90° days by month
Average days at 90° or more
What a year in Rossiter feels like
Typical highs and lows by season and by month, from NOAA’s 30-year normals.
35 inches of snow, 46 of rain and melt
July is the wettest month and February the driest. Rain or snow falls on about 149 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 Rossiter averaged 1.2° warmer than the 1900s. The biggest change is in December (+2.5°).
A smaller shift than in 52% of U.S. towns.
Change by month
How Rossiter compares
Against every U.S. town on TownTapestry, each counted once, with its place in Pennsylvania.
Rossiter 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 | 34° | 17° | 3.4" | 12.4" | 15 | 17° – 35° |
| February | 37° | 18° | 2.7" | 5.1" | 12 | 14° – 36° |
| March | 46° | 25° | 3.6" | 5.9" | 13 | 30° – 47° |
| April | 60° | 35° | 3.9" | 0.3" | 14 | 42° – 53° |
| May | 70° | 45° | 4.1" | 0 | 14 | 51° – 64° |
| June | 78° | 54° | 4.6" | 0 | 13 | 62° – 68° |
| July | 81° | 58° | 4.7" | 0 | 12 | 64° – 73° |
| August | 80° | 56° | 4.1" | 0 | 11 | 64° – 72° |
| September | 73° | 50° | 4.1" | 0 | 10 | 59° – 66° |
| October | 61° | 39° | 3.5" | 0 | 11 | 46° – 56° |
| November | 49° | 30° | 3.5" | 1.7" | 12 | 34° – 45° |
| December | 38° | 23° | 3.5" | 9.1" | 14 | 21° – 41° |
| Year | 59° | 38° | 45.8" | 34.5" | 149 |
Heating and cooling a home in Rossiter
93% 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. February swings the most: from 1991 to 2020 its average ranged from 14° to 36°. June is the most reliable, staying within 7°.
Common questions about Rossiter’s climate
What is the coldest month in Rossiter?
January, with a typical high of 34° and a low of 17°.
What is the hottest month in Rossiter?
July, with a typical high of 81° and a low of 58°. About 7 days a year reach 90°.
How much snow does Rossiter get?
About 35 inches in a normal winter, most of it in January.
When is the first frost in Rossiter?
In half of years the first 32° night comes by October 12, and the last spring frost by May 10.
What is the rainiest month in Rossiter?
July, with 4.7 inches of rain and melted snow. The year totals 46 inches.
Neighbors talk weather
Gardens, snow, and the best days of the year in Rossiter.
Your answer becomes a post in Town Square.
Temperatures and rainfall come from NOAA’s gridded climate normals for Rossiter itself (about a 3-mile square). Snow, frost dates and day counts come from NOAA’s weather station at Putneyville 2 Se Dam, PA (18 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.