St
Michael has chilly, snowy winters and pleasant summers. A typical July afternoon reaches 80°, a January night drops to 18°, and about 74 inches of snow falls in a normal winter.
A year in St. Michael at a glance
Each month’s typical high and low, and what it brings.
What stands out about St. Michael’s climate
Read from where St. Michael sits among Pennsylvania’s towns. The page puts what stands out first.
74 inches of snow, 44 of rain and melt
June is the wettest month and February the driest. Rain or snow falls on about 147 days a year.
Rain + melted snow by month
Inches of water
Snowfall by month
Inches of snow
What a year in St. Michael feels like
Typical highs and lows by season and by month, from NOAA’s 30-year normals.
Warmer than it used to be
The last 30 years in St. Michael averaged 1.0° warmer than the 1900s. The biggest change is in February (+2.0°).
A smaller shift than in 74% of U.S. towns.
Change by month
About 176 frost-free days a year
In half of years the last 32° night comes by April 29 and the first by October 21.
Freezing nights by month
Average nights at or below 32°
Living with St. Michael’s climate
What the numbers mean for a garden, a driveway, a furnace and a free afternoon.
176 frost-free days. The last frost comes by Apr 29 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 21.
About 74" a winter over 28 days with an inch or more, most in January. Snow covers the ground about 79 days a year.
Months averaging under 55° run from October through April. Heating is 93% of the year’s heating-and-cooling load.
90° days are rare: July afternoons average 80°.
The nicest months are May, June, July, August and September. 1.0 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 →St. Michael and its neighbors
Adams has the coldest January nights next door (16°) and Croyle the hottest July afternoons (82°). 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.
How St. Michael compares
Against every U.S. town on TownTapestry, each counted once, with its place in Pennsylvania.
St. Michael 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 | 34° | 18° | 3.2" | 23.6" | 17 | 23 | 17° – 35° |
| February | 37° | 19° | 2.9" | 17.5" | 13 | 21 | 16° – 37° |
| March | 46° | 26° | 3.7" | 9.6" | 13 | 12 | 30° – 48° |
| April | 59° | 36° | 3.8" | 2.6" | 12 | 2 | 42° – 53° |
| May | 69° | 46° | 4.2" | 0 | 13 | 0 | 52° – 65° |
| June | 76° | 55° | 4.3" | 0 | 13 | 0 | 61° – 68° |
| July | 80° | 59° | 4.2" | 0 | 11 | 0 | 65° – 74° |
| August | 79° | 57° | 3.8" | 0 | 10 | 0 | 64° – 72° |
| September | 72° | 50° | 4.0" | 0 | 10 | 0 | 58° – 66° |
| October | 61° | 40° | 3.4" | 1.2" | 11 | 1 | 47° – 56° |
| November | 49° | 31° | 3.2" | 4.8" | 10 | 4 | 34° – 46° |
| December | 38° | 23° | 3.4" | 14.8" | 14 | 16 | 20° – 41° |
| Year | 58° | 38° | 43.9" | 74.1" | 147 | 79 |
Heating and cooling a home in St. Michael
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. December swings the most: from 1991 to 2020 its average ranged from 20° to 41°. June is the most reliable, staying within 7°.
Common questions about St. Michael’s climate
What is the coldest month in St. Michael?
January, with a typical high of 34° and a low of 18°.
What is the hottest month in St. Michael?
July, with a typical high of 80° and a low of 59°.
How much snow does St. Michael get?
About 74 inches in a normal winter, most of it in January.
When is the first frost in St. Michael?
In half of years the first 32° night comes by October 21, and the last spring frost by April 29.
What is the rainiest month in St. Michael?
June, with 4.3 inches of rain and melted snow. The year totals 44 inches.
Neighbors talk weather
Gardens, snow, and the best days of the year in St. Michael.
Your answer becomes a post in Town Square.
Temperatures and rainfall come from NOAA’s gridded climate normals for St. Michael itself (about a 3-mile square). Snow, frost dates and day counts come from NOAA’s weather station at Dunlo, PA (3 mi, snow) and Johnstown Cambria Co Airport, PA (4 mi, frost, heat and degree days). 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.