Jeannette, PA climate
Jeannette has chilly winters and pleasant summers. A typical July afternoon reaches 83°, a January night drops to 21°, and about 30 inches of snow falls in a normal winter.
NOAA 1991-2020 climate normals Updated once a decadeWhat a year in Jeannette feels like
Winter
Spring
Summer
Fall
Jeannette 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 | 37° | 21° | 3.3" | 9.0" | 16 | 22° – 38° |
| February | 41° | 22° | 2.8" | 7.5" | 12 | 18° – 40° |
| March | 50° | 29° | 3.5" | 5.6" | 13 | 33° – 51° |
| April | 63° | 39° | 3.7" | 0.3" | 14 | 45° – 55° |
| May | 72° | 48° | 4.2" | 0 | 14 | 53° – 67° |
| June | 79° | 57° | 4.7" | 0 | 12 | 64° – 70° |
| July | 83° | 61° | 4.4" | 0 | 12 | 68° – 76° |
| August | 82° | 60° | 4.0" | 0 | 11 | 67° – 75° |
| September | 75° | 53° | 3.7" | 0 | 11 | 61° – 69° |
| October | 64° | 42° | 3.3" | 0.1" | 10 | 49° – 59° |
| November | 52° | 33° | 3.3" | 0.9" | 12 | 36° – 48° |
| December | 41° | 26° | 3.3" | 6.4" | 14 | 24° – 45° |
| Year | 62° | 41° | 44.3" | 29.8" | 150 |
“Wet days” have at least 0.01" of rain or melted snow. “Snow on ground” counts days with 1" or more. The 30-year range is the coldest and warmest that month’s average temperature got between 1991 and 2020.
Rain and snow in Jeannette
Jeannette gets 44 inches of rain and melted snow a year. June is the wettest month and February the driest. Rain or snow falls on about 150 days a year.
About 164 frost-free days a year
In half of years the last 32° night comes by May 1 and the first one by October 13. That leaves about 164 frost-free days for gardens, shorter than 67% of U.S. towns.
Heating and cooling a home in Jeannette
Engineers use “degree days” to estimate how hard a furnace or air conditioner works. In Jeannette, 91% of that work is heating and 9% is cooling, so the furnace matters far more than the air conditioner.
Degree days measure how far each day’s average temperature falls below or rises above 65°, added up over a year. Source: NOAA station normals.
Jeannette and its neighbors
Jeannette borders 3 towns with climate data. January nights across them vary by 0.2°. Hempfield has the coldest January nights (21°) and Penn the hottest July afternoons (83°). Jeannette’s January low is 21° and its July high 83°.
Temperatures and rain come from NOAA’s 5 km grid, so each town gets its own value.
How Jeannette compares
Compared with every U.S. town and city on TownTapestry, each counted once.
Warmer than it used to be
The last 30 years in Jeannette averaged 0.8° warmer than the 1900s. The biggest change is in December (+2.0°). The shift is smaller than in 84% of U.S. towns.
Change by month1991–2020 average minus 1901–2000 average, at Jeannette’s spot on NOAA’s grid
How much a month can swing
A normal is an average, and real years wander around it. February swings the most: between 1991 and 2020 its average temperature ranged from 18° to 40°. June is the most reliable, staying within 6°.
Common questions about Jeannette’s climate
What is the coldest month in Jeannette?
January, with a typical high of 37° and a low of 21°.
What is the hottest month in Jeannette?
July, with a typical high of 83° and a low of 61°. About 6 days a year reach 90°.
How much snow does Jeannette get?
About 30 inches in a normal winter, most of it in January.
When is the first frost in Jeannette?
In half of years the first 32° night comes by October 13, and the last spring frost by May 1.
What is the rainiest month in Jeannette?
June, with 4.7 inches of rain and melted snow. The year totals 44 inches.
Temperatures and rainfall come from NOAA’s gridded climate normals for Jeannette itself (about a 3-mile square). Snow, frost dates and day counts come from NOAA’s weather station at Mt Pleasant, PA (10 mi) away. Normals are 30-year averages, not a forecast. Source: NOAA NCEI U.S. Climate Normals, 1991–2020 and 1901–2000.