S Mtn, PA Climate: Temperature & Rain by Month
Annual temperature and rainfall from NOAA NCEI's 1991–2020 normals →; comfort score computed by PlainClimate
30-year climate normals (1991-2020) from S Mtn's primary NOAA station, S MTN.
The climate verdict for S Mtn
Water is the standout signal in S Mtn, Pennsylvania: 48.6 inches of precipitation in a normal year. Against that wet profile, NOAA records an annual average of 50°F. Its climate comfort score of 59/100 (moderate) lands mid-pack nationally, exceeding 37% of station-mapped location scores.
- 50°F
- yearly average temperature, NOAA normal
- 59/100
- comfort score, above 37% of station-mapped location scores
- 48.6"
- annual precipitation · 33" snow
- 176 days
- frost-free days per growing season
S Mtn: NOAA 1991-2020 normals describe a typical year, not a forecast. Method: /methodology.
Normals record plate
Sheet USC00368308 · S Mtn, PA 50°F mean · 48.6" precip
TEMP-COOL · RANK-MID · PHOTO-FINISH · PRCP-MID · SWING-MID · COMF-MID · LOAD-HEAT · STN-1 · BOOK-FULL
- TEMP-COOL 50°F
- RANK-MID #2,744
- PHOTO-FINISH ≈ Loyalhanna Lake
- PRCP-MID 48.6"
- SWING-MID 43°F
- COMF-MID 59/100
- LOAD-HEAT 5,995 HDD
- STN-1 USC00368308
- BOOK-FULL 6/6 fields
Nearest mean-temperature peer: Loyalhanna Lake, PA (+ 0 °F mean)
Instrument codes from this station's NOAA 1991–2020 normals, mean temperature, corpus warmth rank, photo-finish peer station, precipitation band, seasonal swing, comfort composite, degree-day load, and field book, not a livability rating.
Mean-temperature neighbourhood
Nationwide NOAA normal poles and nearest peers, not a reprint of every PA station list.
- S Mtn (this station) 50°F
- Hot Austin, NV 50°F
- Near Loyalhanna Lake, PA 50°F
- Near Plymouth, MA 50°F
- Near Ellensburg Bowe…, WA 50°F
Climate Living Index · S Mtn
S Mtn: 47/100 · grade D
S Mtn publishes 5 of 6 Living Index dimensions (NOAA annual/seasonal normals · NOAA daily multivariate normals); 1 missing weight rescale to 100.
PlainClimate-derived for S Mtn, not an official NOAA rating. Rankings still use Comfort Score 59/100 (separate formula). Breakpoints and limits.
| Dimension | Station value | Score |
|---|---|---|
| Normal heat + freeze calendar | 133 calendar days | 57/100 · C |
| Precipitation balance | 48.6 in · 13.6 from 35 in | 52/100 · D |
| Frost-free season | 176 days/year | 47/100 · D |
| Annual temperature balance | 50.0°F · 17.5° from 67.5°F | 40/100 · D |
| Snowfall burden | 33.0 inches/year | 35/100 · F |
S Mtn · 2026-08-04 · NOAA NCEI Climate Normals · method · Comfort Score method.
S Mtn is a continental Köppen climate: Dfb
Coldest-month mean 28.1°F and warmest-month mean 71.1°F place this station in continental, no dry season, warm summer climates (Dfb). Class Dfb is the Peel et al. (2007) label for this station's monthly mean temperature and precipitation normals: continental, specifically continental, no dry season, warm summer.
- Köppen code
- Dfb
- Group
- Continental
- Warmest month
- 71.1°F
- Coldest month
- 28.1°F
Source: official public datasets monthly normals (1991–2020) at the city’s primary station. This is a station classification, not a mapped regional consensus.
National standing · heating-led station
Where S Mtn sits across the climate record
Three NOAA fields for S Mtn's primary station, temperature, precipitation, and seasonal swing, are ranked against every station-mapped normal that carries the same field.
- Annual temperature
- 40th percentile warmth
- Mid-pack annual mean versus 6,861 station normals.
- Annual precipitation
- Top 23% wettest
- S Mtn's annual total ranks in the wetter third of 6,352 measured normals.
- Seasonal temperature swing
- 49th percentile swing
- Typical seasonal amplitude versus 6,861 complete station-years.
How S Mtn compares across U.S. station-mapped locations
S Mtn's comfort score vs. all station-mapped locations
PlainClimate composite comfort index (1–100), NOAA 1991–2020 normals
59 37th percentile score exceeds 37% of 6,189 station-mapped location scores
- 0–10: 0 station-mapped locations (0%). Below this entry.
- 10–20: 0 station-mapped locations (0%). Below this entry.
- 20–30: 96 station-mapped locations (2%). Below this entry.
- 30–40: 280 station-mapped locations (5%). Below this entry.
- 40–50: 1,113 station-mapped locations (18%). Below this entry.
- 50–60: 1,329 station-mapped locations (21%). This entry sits in this band.
- 60–70: 1,236 station-mapped locations (20%). Above this entry.
- 70–80: 650 station-mapped locations (11%). Above this entry.
- 80–90: 921 station-mapped locations (15%). Above this entry.
- 90–100: 564 station-mapped locations (9%). Above this entry.
Source NOAA U.S. Climate Normals, PlainClimate comfort index · 1991–2020
Monthly Temperatures
Average daily high and low temperatures by month
| Month | Avg High | Avg Low | Mean | Precip | Snow | Freeze Days | 90°F+ Days |
|---|---|---|---|---|---|---|---|
| January | 36°F (2°C) | 21°F (-6°C) | 28°F (-2°C) | 3.7" | 10.6" | 27.1 | 0.0 |
| February | 39°F (4°C) | 21°F (-6°C) | 30°F (-1°C) | 2.9" | 9.5" | 24.6 | 0.0 |
| March | 47°F (8°C) | 28°F (-2°C) | 37°F (3°C) | 4.4" | 6.5" | 22.4 | 0.0 |
| April | 59°F (15°C) | 38°F (3°C) | 49°F (9°C) | 4.2" | 0.6" | 8.8 | 0.0 |
| May | 69°F (21°C) | 49°F (9°C) | 59°F (15°C) | 4.7" | 0.0" | 0.5 | 0.0 |
| June | 77°F (25°C) | 58°F (14°C) | 67°F (20°C) | 4.6" | 0.0" | 0.0 | 0.3 |
| July | 81°F (27°C) | 62°F (17°C) | 71°F (22°C) | 3.9" | 0.0" | 0.0 | 2.1 |
| August | 79°F (26°C) | 60°F (16°C) | 70°F (21°C) | 3.9" | 0.0" | 0.0 | 0.5 |
| September | 73°F (23°C) | 53°F (12°C) | 63°F (17°C) | 5.1" | 0.0" | 0.0 | 0.1 |
| October | 61°F (16°C) | 43°F (6°C) | 52°F (11°C) | 4.1" | 0.0" | 3.7 | 0.0 |
| November | 50°F (10°C) | 33°F (0°C) | 42°F (5°C) | 3.3" | 0.6" | 16.4 | 0.0 |
| December | 40°F (4°C) | 26°F (-4°C) | 33°F (0°C) | 3.8" | 5.2" | 25.2 | 0.0 |
The year, day by day
Summer here tops out rather than builds: the warmest normal high is 81°F around July 9, short of 90°F on every date, while 133 dates carry a normal low at or below freezing, the coldest 20°F near January 25.
The freezing stretch
The normal low stays at or below 32°F into March 29, then returns to freezing around November 18, covering 133 dates in all.
Derived from the normal daily minimum. This is a different measure from the 50%-probability frost dates shown elsewhere on this page, which come from NOAA’s frost product.
Where the wet dates fall
The likeliest wet date is May 8, when 43% of years recorded at least a hundredth of an inch. The driest is November 6 at 29%. Summed across the calendar, that is about 128 wet dates a year.
The widest day
April 20 carries the biggest normal gap between afternoon and dawn, 22°F between the normal high and the normal low.
Look up any date
Any date's 1991–2020 normal for S Mtn.
Where S Mtn Stands Nationally
Days and nights track unusually close together; the widest normal swing, about 22°F, is narrower than most stations record.
S Mtn earns one nationally notable standing (outer quintile) against 6,860 NOAA 1991–2020 normals stations, middle-of-the-pack metrics stay silent here.
Monthly Precipitation
Average monthly rainfall and snowfall
Snow: 10.6"
10.4 days with precipitation
Snow: 9.5"
9.0 days with precipitation
Snow: 6.5"
11.0 days with precipitation
Snow: 0.6"
12.4 days with precipitation
13.3 days with precipitation
11.5 days with precipitation
11.0 days with precipitation
10.5 days with precipitation
10.1 days with precipitation
9.8 days with precipitation
Snow: 0.6"
8.4 days with precipitation
Snow: 5.2"
9.9 days with precipitation
S Mtn spreads its precipitation across the year
Neither half of the year dominates here: June through August take 26% of the annual total and December through February 21%, with neither reaching the 35% that would mark a distinct wet season. S Mtn has no dry season to plan around, though it does carry a 43°F seasonal spread.
The gap between the wettest and driest month still matters: September averages 5.1" and February 2.9". The three wettest months together take 30% of the year, against the 25% a perfectly flat distribution would give them.
Shares are computed from this station's own 1991-2020 monthly precipitation normals. "Spread across the year" means neither the June-August nor the December-February share reaches 35%; it describes an average year, not the variability of any single one.
When it rains in S Mtn, it arrives in quantity
48.6" of precipitation falls across only about 127 wet days here, averaging 0.38 inches each. Fewer days carry more water: the year's total is delivered in comparatively heavy events rather than persistent damp.
- Days with measurable precipitation
- about 127 a year, 35% of all days
- Average depth per wet day
- 0.38 inches
- Most wet days
- May, about 13
- Fewest wet days
- November, about 8
A wet day is one recording at least 0.01 inches. These are 1991-2020 normals: they describe an average year, and a per-day average is not a forecast of any individual storm.
Winter brings real snow to S Mtn
S Mtn averages 33.0 inches of snowfall a year, with January the snowiest month on the normals, spread across roughly 13 days that record measurable snow. That is depth accumulating on the ground, which is why it can exceed the annual precipitation figure: precipitation counts the liquid the snow melts down to, and fresh snow is mostly air.
- Annual snowfall: 33.0 inches of depth.
- Days recording measurable snow: about 13 a year.
- At a rough ten-to-one melt ratio, snow accounts for on the order of 7% of the year's precipitation.
NOAA 1991-2020 normals. The ten-to-one ratio is a convention, not a measurement: real ratios vary with temperature, so treat the share as an order of magnitude rather than an exact split.
Frost Dates & Growing Season
First Fall Freeze
October 20
50% probability date
Last Spring Freeze
April 27
50% probability date
Growing Season
176 days
Heating & Cooling Degree Days
Annual totals indicate energy demand for heating and cooling
Heating Degree Days
5,995
Higher = more heating needed
Cooling Degree Days
570
Higher = more cooling needed
Warmest Month
July
Coldest Month
January
Nationwide similar cities
Other rankable U.S. places outside PA closest to S Mtn on two NOAA annual-normal axes (mean temperature and annual precipitation). Chip rows use distinct link sets.
Closest by average temperature
Nearest out-of-state peers by annual mean temperature (50°F here).
- Albia, IA 50°F · 0.0°F off
- Aledo, IL 50°F · 0.0°F off
- Centerburg, OH 50°F · 0.0°F off
- Circleville, UT 50°F · 0.0°F off
Closest by annual precipitation
Nearest out-of-state peers by annual precipitation (48.6" here), excluding temperature-peer places.
- Raeford, NC 48.6" · 0.0" off
- Gravette, AR 48.6" · 0.0" off
- Bamberg, SC 48.5" · 0.0" off
- Hawkinsville, GA 48.5" · 0.0" off
Snow and freeze rhythm
When cold and snow define S Mtn
heating led · wet · mid swing
S Mtn's energy balance leans toward cold weather: 5,995 annual heating degree days against 570 for cooling. Its 43.0°F seasonal range still makes the monthly rows more useful than the annual average alone.
S Mtn's frost-free season lasts about 176 days, a middle-length window whose endpoints matter more than the annual average. It describes freeze probability, not year-specific planting conditions.
-
1. S Mtn coldest normal
January
The monthly mean of 28°F (-2°C) sits near freezing, so cold nights and above-freezing afternoons share the same month.
-
2. S Mtn typical freeze period
January through December
The station reports average freezing days from January through December.
-
3. S Mtn snow peak
January
S Mtn averages 33.0 inches of snow a year, with January the snowiest month on the normals.
Questions about S Mtn's climate
How much snow does S Mtn get? ▼
How cold does S Mtn get in winter? ▼
How much energy does heating and cooling require in S Mtn? ▼
Data Sources
Data source: NOAA U.S. Climate Normals v1.0.1 (1991-2020). All figures on this page are from S Mtn's primary station: S MTN (USC00368308). For informational purposes only.
Place identity: U.S. Census Bureau 2024 Gazetteer places. The conservative exact name-and-state crosswalk finds no Census place match, so PlainClimate treats this as a station-mapped location and does not claim it is a municipality. No exact Gazetteer row for S Mtn; facility counts that depend on place identity are therefore an upper bound, not a municipal census.
On this page every temperature, precipitation, and derived score for S Mtn comes from its primary NOAA station record. No figure on this page is typed in by an editor - each value is rendered from NOAA 1991-2020 U.S. Climate Normals. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of 1991–2020 normals.