Photo: Doug Kerr from Albany, NY, United States · CC BY-SA 2.0Neither notably warm, cold, wet nor dry, Emsworth sits near the middle of U.S. towns
Midsummer highs settle at about 84°. Its yearly precipitation falls short of 60% of U.S. towns. Compared with 1901–2000, the average now sits 1.3° higher. Radiators earn their keep from November to March, the months that average under 50°.
A year in Emsworth at a glance
Each month’s typical high and low, and what it brings.
What stands out about Emsworth’s climate
Compared with towns across the U.S., with Emsworth’s place in Pennsylvania beside it.
What a year in Emsworth feels like
Typical highs and lows by season and by month, from NOAA’s 30-year normals.
About 186 frost-free days a year
In half of years the last 32° night comes by April 24 and the first by October 27. Frost and day counts come from NOAA’s station at Emsworth L/d Ohio Rvr, PA, 0.6 miles from the town’s center, at about the same height.
The 2023 USDA map puts Emsworth’s center in zone 7a: the coldest night of a typical winter, averaged over 1991–2020, reaches about 1°. Plant labels use the zone; frost dates tell you when to plant.
Freezing nights by month
Average nights at or below 32°
90° days by month
Average days at 90° or more
About 44 inches of snow a winter
Snow, measured at Pittsburgh International Airport, falls mostly in January. Precipitation (rain plus melted snow) adds up to 40 inches a year; July is the wettest month and February the driest. Rain or snow falls on about 154 days a year.
Rain + melted snow by month
Inches of water
Snowfall by month
Inches of snow
Heating and cooling a home in Emsworth
86% of the work is heating, so the furnace matters far more than the air conditioner. Months averaging under 55° run from October through April.
Degree days add up how far each day’s average falls below (heating) or rises above (cooling) 65° over a year. NOAA normals at Emsworth L/d Ohio Rvr, PA.
Living with Emsworth’s climate
What the numbers mean for a garden, a free afternoon and a bad-weather day.
186 frost-free days in zone 7a. The last frost comes by Apr 24 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 27.
Months with highs of 62–84° and lows of 40° or more: May, June, August, September and October. 0.4 miles of trails are waiting.
Parks & trails →Of the yearly building losses FEMA expects in Emsworth from natural hazards, river flooding is the largest share (87%); heat waves, cold waves, winter storms and ice storms together are 10%. Normals are averages; the hazards page covers the extremes.
Natural hazards →Emsworth and its neighbors
Every town next door is within a degree of Emsworth in January and July, closer than the 5 km grid can tell apart. Tap a town to see its climate.
Climates most like Emsworth’s, farther away
TownRatings’ own comparison of NOAA 1991–2020 normals, not a NOAA product: places of 5,000+ at least 150 miles away, one per state, closest on January low, July high, precipitation and snow.
| Town | Jan. low | July high | Precip. | Snow |
|---|---|---|---|---|
| Emsworth, PA | 22° | 84° | 40" | 44" |
| East Chicago, IN | 19° | 83° | 38" | 39" |
| Chicago, IL | 18° | 84° | 38" | 39" |
| Bellevue, OH | 19° | 84° | 38" | 33" |
| Three Rivers, MI | 17° | 83° | 38" | 41" |
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 Emsworth averaged 1.3° warmer than the 1900s. The biggest change is in December (+2.5°).
A smaller shift than in 56% of U.S. towns.
Change by month
The two periods overlap (1991–2000 is in both), which makes the gap a little smaller than it would be between separate periods.
How Emsworth compares
Against 12,954 U.S. towns of 2,500 or more (one per 5 km climate cell), with Emsworth’s place among Pennsylvania’s.
Emsworth weather by month
Highs, lows and precipitation from NOAA’s grid at Emsworth’s center; snow, wet days and snow on the ground from Pittsburgh International Airport. 1991–2020 normals.
| Month | High | Low | Rain + melt | Snow | Wet days | Snow on ground | 30-yr range |
|---|---|---|---|---|---|---|---|
| January | 37° | 22° | 2.9" | 13.3" | 17 | 14 | 21° – 39° |
| February | 41° | 24° | 2.4" | 11.7" | 14 | 11 | 19° – 41° |
| March | 50° | 30° | 3.2" | 7.6" | 14 | 5 | 34° – 51° |
| April | 63° | 40° | 3.4" | 1.0" | 14 | 0 | 46° – 57° |
| May | 73° | 50° | 3.9" | 0.0" | 14 | 0 | 54° – 68° |
| June | 81° | 58° | 4.1" | 0.0" | 12 | 0 | 65° – 72° |
| July | 84° | 62° | 4.3" | 0.0" | 11 | 0 | 69° – 77° |
| August | 83° | 61° | 3.6" | 0.0" | 11 | 0 | 68° – 77° |
| September | 76° | 54° | 3.5" | 0.0" | 10 | 0 | 62° – 70° |
| October | 65° | 43° | 3.0" | 0.4" | 11 | 0 | 50° – 60° |
| November | 52° | 34° | 2.8" | 2.4" | 12 | 1 | 37° – 49° |
| December | 42° | 27° | 3.0" | 7.7" | 15 | 8 | 24° – 45° |
| Year | 62° | 42° | 40.1" | 44.1" | 154 | 40 |
How much a month can swing
A normal is an average. February swings the most: from 1991 to 2020 its average ranged from 19° to 41°. June is the most reliable, staying within 7°.
Where Emsworth’s numbers come from
Normals are 30-year averages, not a forecast. How TownRatings reads climate data →
- Temperatures and precipitation: NOAA’s gridded 1991–2020 normals for the 5 km cell at Emsworth’s center.
- Snow: Pittsburgh International Airport.
- Frost, freezing nights, 90° and 100° days, heating and cooling: Emsworth L/d Ohio Rvr, PA, 0.6 miles from the town’s center, at about the same height; the nearest station that passes our checks for distance, height and agreement with the grid.
- Growing zone: USDA Plant Hardiness Zone Map, 2023. USDA Agricultural Research Service and PRISM Group, Oregon State University, prism.oregonstate.edu/phzm, accessed 8 Oct 2026.
- Then and now: NOAA’s gridded normals for 1901–2000 at the same cell.
- Storms and extremes: FEMA National Risk Index (expected annual losses to buildings).
Common questions about Emsworth’s climate
What is the weather like in Emsworth?
A typical July afternoon reaches 84°, a January night drops to 22°, and about 44 inches of snow falls in a normal winter. Colder January nights than 52% of U.S. towns; cooler July afternoons than 58% of U.S. towns.
How cold does it get in Emsworth in winter?
January nights average 22°. About 107 nights a year reach 32° or below and 2 reach 0° or below. In the coldest January of the last 30 years the month averaged 21°.
How much snow does Emsworth get?
About 44 inches in a normal winter at Pittsburgh International Airport, most of it in January, with snow on the ground about 40 days a year.
How hot does it get in Emsworth?
July, with a typical high of 84° and a low of 62°. About 20 days a year reach 90° (Emsworth L/d Ohio Rvr, PA).
When is the first and last frost in Emsworth?
In half of years the last spring frost (32°) comes by April 24 and the first fall frost by October 27, about 186 frost-free days, at Emsworth L/d Ohio Rvr, PA.
What growing zone is Emsworth in?
Zone 7a on the 2023 USDA Plant Hardiness Zone Map: the coldest night of a typical winter reaches about 1°.
What is the best time of year to visit Emsworth?
By one simple rule (highs of 62–84° and lows of 40° or more), May, June, August, September and October. The rule is ours, not NOAA’s; the month table has the numbers to judge by.
Is Emsworth getting warmer?
Yes: 1991–2020 averaged 1.3° warmer than 1901–2000 on NOAA’s grid. A smaller shift than 56% of U.S. towns.
Neighbors talk weather
Gardens, snow, and the best days of the year in Emsworth.
Source: NOAA NCEI U.S. Climate Normals, 1991–2020 and 1901–2000; USDA/PRISM 2023 hardiness zones; FEMA National Risk Index. Today’s forecast: National Weather Service.