Gratz, PA climate
Gratz has chilly winters and pleasant summers. A typical July afternoon reaches 84°, a January night drops to 21°, and about 28 inches of snow falls in a normal winter.
NOAA 1991-2020 climate normals Updated once a decadeWhat a year in Gratz feels like
Winter
Spring
Summer
Fall
Gratz 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 | 35° | 21° | 3.2" | 8.4" | 9 | 12 | 18° – 36° |
| February | 39° | 22° | 2.5" | 8.3" | 8 | 14 | 18° – 37° |
| March | 48° | 29° | 3.7" | 5.1" | 9 | 5 | 32° – 48° |
| April | 61° | 38° | 3.9" | 0.6" | 11 | 0 | 45° – 55° |
| May | 71° | 49° | 4.0" | 0 | 13 | 0 | 55° – 65° |
| June | 79° | 58° | 4.3" | 0 | 11 | 0 | 65° – 72° |
| July | 84° | 63° | 4.5" | 0 | 10 | 0 | 69° – 77° |
| August | 82° | 61° | 4.0" | 0 | 11 | 0 | 67° – 75° |
| September | 75° | 54° | 4.7" | 0 | 9 | 0 | 61° – 68° |
| October | 63° | 42° | 4.0" | 0 | 10 | 0 | 47° – 59° |
| November | 51° | 33° | 3.2" | 0.8" | 8 | 0 | 36° – 46° |
| December | 40° | 26° | 3.5" | 4.4" | 9 | 5 | 24° – 42° |
| Year | 61° | 41° | 45.4" | 27.6" | 117 | 36 |
“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 Gratz
Gratz gets 45 inches of rain and melted snow a year. September is the wettest month and February the driest. Rain or snow falls on about 117 days a year. Snow covers the ground about 36 days of the year.
About 168 frost-free days a year
In half of years the last 32° night comes by May 1 and the first one by October 16. That leaves about 168 frost-free days for gardens, shorter than 63% of U.S. towns.
Heating and cooling a home in Gratz
Engineers use “degree days” to estimate how hard a furnace or air conditioner works. In Gratz, 90% of that work is heating and 10% 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.
How Gratz 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 Gratz averaged 1.4° warmer than the 1900s. The biggest change is in December (+2.9°). The shift is larger than in 65% of U.S. towns.
Change by month1991–2020 average minus 1901–2000 average, at Gratz’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 37°. June is the most reliable, staying within 7°.
Common questions about Gratz’s climate
What is the coldest month in Gratz?
January, with a typical high of 35° and a low of 21°.
What is the hottest month in Gratz?
July, with a typical high of 84° and a low of 63°. About 14 days a year reach 90°.
How much snow does Gratz get?
About 28 inches in a normal winter, most of it in January.
When is the first frost in Gratz?
In half of years the first 32° night comes by October 16, and the last spring frost by May 1.
What is the rainiest month in Gratz?
September, with 4.7 inches of rain and melted snow. The year totals 45 inches.
Temperatures and rainfall come from NOAA’s gridded climate normals for Gratz itself (about a 3-mile square). Snow, frost dates and day counts come from NOAA’s weather station at Dehart Dam, PA (10 mi) away. Normals are 30-year averages, not a forecast. Source: NOAA NCEI U.S. Climate Normals, 1991–2020 and 1901–2000.