Leetsdale has chilly winters and warm summers
A typical July afternoon reaches 84°, a January night drops to 21°, and about 20 inches of snow falls in a normal winter.
A year in Leetsdale at a glance
Each month’s typical high and low, and what it brings.
What stands out about Leetsdale’s climate
Read from where Leetsdale sits among Pennsylvania’s towns. The page puts what stands out first.
20 inches of snow, 39 of rain and melt
July is the wettest month and February the driest. Rain or snow falls on about 138 days a year.
Rain + melted snow by month
Inches of water
Snowfall by month
Inches of snow
Living with Leetsdale’s climate
What the numbers mean for a garden, a driveway, a furnace and a free afternoon.
212 frost-free days. The last frost comes by Apr 8 in half of years, so many gardeners wait a week or two past that to set out tomatoes. The first fall frost comes by Nov 8.
About 20" a winter over 8 days with an inch or more, most in January. Snow covers the ground about 17 days a year.
Months averaging under 55° run from October through April. Heating is 87% of the year’s heating-and-cooling load.
About 26 days a year reach 90°, and July afternoons average 84°.
The nicest months are May, June, August, September and October. 0.1 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 →What a year in Leetsdale feels like
Typical highs and lows by season and by month, from NOAA’s 30-year normals.
About 212 frost-free days a year
In half of years the last 32° night comes by April 8 and the first by November 8.
Freezing nights by month
Average nights at or below 32°
90° days by month
Average days at 90° or more
Leetsdale and its neighbors
Ambridge has the coldest January nights next door (21°) and Ambridge the hottest July afternoons (85°). 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.
Warmer than it used to be
The last 30 years in Leetsdale averaged 1.3° warmer than the 1900s. The biggest change is in December (+2.5°).
A bigger shift than in 53% of U.S. towns.
Change by month
How Leetsdale compares
Against every U.S. town on TownTapestry, each counted once, with its place in Pennsylvania.
Leetsdale 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° | 21° | 2.8" | 9.1" | 15 | 7 | 21° – 39° |
| February | 41° | 23° | 2.4" | 5.2" | 13 | 5 | 18° – 40° |
| March | 50° | 30° | 3.1" | 2.6" | 13 | 2 | 34° – 51° |
| April | 63° | 40° | 3.4" | 0 | 12 | 0 | 46° – 56° |
| May | 73° | 49° | 3.8" | 0 | 12 | 0 | 55° – 68° |
| June | 81° | 58° | 4.1" | 0 | 11 | 0 | 65° – 72° |
| July | 84° | 62° | 4.1" | 0 | 9 | 0 | 69° – 77° |
| August | 83° | 61° | 3.5" | 0 | 9 | 0 | 67° – 76° |
| September | 77° | 54° | 3.5" | 0 | 9 | 0 | 62° – 70° |
| October | 65° | 43° | 2.9" | 0.1" | 10 | 0 | 50° – 60° |
| November | 52° | 34° | 2.7" | 0.3" | 11 | 0 | 37° – 49° |
| December | 42° | 27° | 2.9" | 2.5" | 13 | 3 | 24° – 45° |
| Year | 62° | 42° | 39.1" | 19.8" | 138 | 17 |
Heating and cooling a home in Leetsdale
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. February swings the most: from 1991 to 2020 its average ranged from 18° to 40°. June is the most reliable, staying within 7°.
Common questions about Leetsdale’s climate
What is the coldest month in Leetsdale?
January, with a typical high of 37° and a low of 21°.
What is the hottest month in Leetsdale?
July, with a typical high of 84° and a low of 62°. About 26 days a year reach 90°.
How much snow does Leetsdale get?
About 20 inches in a normal winter, most of it in January.
When is the first frost in Leetsdale?
In half of years the first 32° night comes by November 8, and the last spring frost by April 8.
What is the rainiest month in Leetsdale?
July, with 4.1 inches of rain and melted snow. The year totals 39 inches.
Neighbors talk weather
Gardens, snow, and the best days of the year in Leetsdale.
Your answer becomes a post in Town Square.
Temperatures and rainfall come from NOAA’s gridded climate normals for Leetsdale itself (about a 3-mile square). Snow, frost dates and day counts come from NOAA’s weather station at Glenwillard Dashields L&d, PA (1 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.