Harrisburg Cptl CY, PA Climate: Temperature & Rain by Month
Temperature and precipitation from NOAA NCEI 1991–2020 normals →, plus PlainClimate's derived comfort score
30-year climate normals (1991-2020) from Harrisburg Cptl CY's primary NOAA station, HARRISBURG CPTL CY AP.
The climate verdict for Harrisburg Cptl CY
Harrisburg Cptl CY, Pennsylvania has a mixed annual climate rather than one dominant extreme. Its NOAA normal shows an annual average of 55°F. It scores 80/100 for climate comfort (excellent), putting it in the top third of station-mapped location scores and exceeding 76% of them.
- 55°F
- yearly average temperature, NOAA normal
- 80/100
- comfort score, above 76% of station-mapped location scores
- 41.0"
- yearly precipitation total
- 206 days
- frost-free days per growing season
Harrisburg Cptl CY: NOAA 1991-2020 normals describe a typical year, not a forecast. Method: /methodology.
Normals record plate
Sheet USW00014751 · Harrisburg Cptl CY, PA 55°F mean · 41.0" precip
TEMP-MILD · RANK-UPPER · PHOTO-FINISH · PRCP-MID · SWING-MID · COMF-TOP · LOAD-HEAT · STN-1 · BOOK-FULL
- TEMP-MILD 55°F
- RANK-UPPER #4,185
- PHOTO-FINISH ≈ Crestwood
- PRCP-MID 41.0"
- SWING-MID 45°F
- COMF-TOP 80/100
- LOAD-HEAT 4,756 HDD
- STN-1 USW00014751
- BOOK-FULL 6/6 fields
Nearest mean-temperature peer: Crestwood, KY (+ 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.
- Harrisburg Cptl… (this station) 55°F
- Hot Stendal, IN 55°F
- Near Crestwood, KY 55°F
- Near Mtn Grove, MO 55°F
- Near Grovespring, MO 55°F
Climate Living Index · Harrisburg Cptl CY
Harrisburg Cptl CY: 71/100 · grade B
Harrisburg Cptl CY publishes 4 of 6 Living Index dimensions (NOAA annual/seasonal normals · NOAA daily multivariate normals); 2 missing weights rescale to 100.
PlainClimate-derived for Harrisburg Cptl CY, not an official NOAA rating. Rankings still use Comfort Score 80/100 (separate formula). Breakpoints and limits.
| Dimension | Station value | Score |
|---|---|---|
| Precipitation balance | 41.0 in · 6.0 from 35 in | 79/100 · B |
| Normal heat + freeze calendar | 97 calendar days | 77/100 · B |
| Frost-free season | 206 days/year | 69/100 · C |
| Annual temperature balance | 55.2°F · 12.3° from 67.5°F | 60/100 · C |
Harrisburg Cptl CY · 2026-08-04 · NOAA NCEI Climate Normals · method · Comfort Score method.
Harrisburg Cptl CY is a temperate Köppen climate: Cfa
Coldest-month mean 32.6°F and warmest-month mean 77.5°F place this station in temperate, no dry season, hot summer climates (Cfa). Class Cfa is the Peel et al. (2007) label for this station's monthly mean temperature and precipitation normals: temperate, specifically temperate, no dry season, hot summer.
- Köppen code
- Cfa
- Group
- Temperate
- Warmest month
- 77.5°F
- Coldest month
- 32.6°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 Harrisburg Cptl CY sits across the climate record
Three NOAA fields for Harrisburg Cptl CY's primary station, temperature, precipitation, and seasonal swing, are ranked against every station-mapped normal that carries the same field.
- Annual temperature
- 61st percentile warmth
- Mid-pack annual mean versus 6,861 station normals.
- Annual precipitation
- 60th percentile wetness
- Neither arid nor torrential versus 6,352 station totals.
- Seasonal temperature swing
- 58th percentile swing
- Typical seasonal amplitude versus 6,861 complete station-years.
How Harrisburg Cptl CY compares across U.S. station-mapped locations
Harrisburg Cptl CY's comfort score vs. all station-mapped locations
PlainClimate composite comfort index (1–100), NOAA 1991–2020 normals
80 Top 24% score exceeds 76% 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%). Below this entry.
- 60–70: 1,236 station-mapped locations (20%). Below this entry.
- 70–80: 650 station-mapped locations (11%). Below this entry.
- 80–90: 921 station-mapped locations (15%). This entry sits in this band.
- 90–100: 564 station-mapped locations (9%). Above this entry.
Source NOAA U.S. Climate Normals, PlainClimate comfort index · 1991–2020
Harrisburg Cptl CY's measured station temperature trend
MethodologyAcross 147 complete annual observations from 1841 to 2025, HARRISBURG CPTL CY AP warmed at a fitted rate of 0.03°C per decade. The line shows the fitted change relative to its first year, not raw year-to-year temperatures or a forecast.
- Harrisburg Cptl CY primary station fitted change +0.03 °C/decade
Monthly Temperatures
Average daily high and low temperatures by month
| Month | Avg High | Avg Low | Mean | Precip | Freeze Days | 90°F+ Days |
|---|---|---|---|---|---|---|
| January | 40°F (5°C) | 25°F (-4°C) | 33°F (0°C) | 2.6" | 25.5 | 0.0 |
| February | 43°F (6°C) | 26°F (-3°C) | 35°F (2°C) | 2.4" | 23.4 | 0.0 |
| March | 53°F (11°C) | 34°F (1°C) | 43°F (6°C) | 3.4" | 16.2 | 0.0 |
| April | 65°F (18°C) | 43°F (6°C) | 54°F (12°C) | 3.7" | 3.1 | 0.1 |
| May | 75°F (24°C) | 53°F (12°C) | 64°F (18°C) | 3.5" | 0.0 | 1.5 |
| June | 83°F (28°C) | 63°F (17°C) | 73°F (23°C) | 3.7" | 0.0 | 4.5 |
| July | 88°F (31°C) | 67°F (20°C) | 78°F (25°C) | 4.3" | 0.0 | 10.4 |
| August | 85°F (30°C) | 66°F (19°C) | 75°F (24°C) | 3.7" | 0.0 | 6.6 |
| September | 79°F (26°C) | 58°F (15°C) | 69°F (20°C) | 4.1" | 0.0 | 2.3 |
| October | 67°F (19°C) | 47°F (8°C) | 57°F (14°C) | 3.7" | 1.2 | 0.1 |
| November | 55°F (13°C) | 37°F (3°C) | 46°F (8°C) | 2.8" | 9.9 | 0.0 |
| December | 44°F (7°C) | 30°F (-1°C) | 37°F (3°C) | 3.1" | 22.3 | 0.0 |
The year, day by day
Summer here tops out rather than builds: the warmest normal high is 88°F around July 14, short of 90°F on every date, while 97 dates carry a normal low at or below freezing, the coldest 24°F near January 22.
The freezing stretch
The normal low stays at or below 32°F into March 10, then returns to freezing around December 5, covering 97 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 15, when 45% of years recorded at least a hundredth of an inch. The driest is November 6 at 30%. Summed across the calendar, that is about 130 wet dates a year.
The widest day
April 27 carries the biggest normal gap between afternoon and dawn, 23°F between the normal high and the normal low.
Look up any date
Any date's 1991–2020 normal for Harrisburg Cptl CY.
Where Harrisburg Cptl CY Stands Nationally
Days and nights track unusually close together; the widest normal swing, about 23°F, is narrower than most stations record.
Harrisburg Cptl CY 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
9.4 days with precipitation
9.3 days with precipitation
10.7 days with precipitation
12.1 days with precipitation
13.7 days with precipitation
11.9 days with precipitation
11.8 days with precipitation
11.1 days with precipitation
9.5 days with precipitation
11.0 days with precipitation
8.8 days with precipitation
10.1 days with precipitation
Harrisburg Cptl CY spreads its precipitation across the year
Neither half of the year dominates here: June through August take 29% of the annual total and December through February 20%, with neither reaching the 35% that would mark a distinct wet season. Harrisburg Cptl CY has no dry season to plan around, though it does carry a 44.9°F seasonal spread.
The gap between the wettest and driest month still matters: July averages 4.3" and February 2.4". 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.
How Harrisburg Cptl CY's precipitation splits across the calendar
About 129 days a year record measurable precipitation here, carrying 41.0" between them, or roughly 0.32 inches on a typical wet day. That sits in the middle band: neither the many-light-days pattern of the Pacific Northwest and the Great Lakes, nor the few-heavy-events pattern of the Gulf and the desert Southwest.
A wet day is one recording at least 0.01 inches. These are 1991-2020 normals: they describe an average year and say nothing about the heaviest single storm on record.
Frost Dates & Growing Season
First Fall Freeze
November 1
50% probability date
Last Spring Freeze
April 9
50% probability date
Growing Season
206 days
Heating & Cooling Degree Days
Annual totals indicate energy demand for heating and cooling
Heating Degree Days
4,756
Higher = more heating needed
Cooling Degree Days
1,230
Higher = more cooling needed
Warmest Month
July
Coldest Month
January
Nationwide similar cities
Other rankable U.S. places outside PA closest to Harrisburg Cptl CY 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 (55°F here).
- Augusta, KY 55°F · 0.0°F off
- Ava, MO 55°F · 0.0°F off
- Brandenburg, KY 55°F · 0.0°F off
- Brevard, NC 55°F · 0.0°F off
Closest by annual precipitation
Nearest out-of-state peers by annual precipitation (41.0" here), excluding temperature-peer places.
- Bethlehem, NH 41.0" · 0.0" off
- Chalmers, IN 41.0" · 0.0" off
- Plainfield, VT 41.0" · 0.0" off
- Tulsa, OK 41.0" · 0.0" off
Data-derived climate profile
How Harrisburg Cptl CY's climate pattern fits together
heating led · moderate · mid swing
Harrisburg Cptl CY's energy balance leans toward cold weather: 4,756 annual heating degree days against 1,230 for cooling. Its 44.9°F seasonal range still makes the monthly rows more useful than the annual average alone.
Harrisburg Cptl CY's frost-free season lasts about 206 days, a middle-length window whose endpoints matter more than the annual average. It describes freeze probability, not year-specific planting conditions.
July and January mark the typical warm and cold ends of the calendar in Harrisburg Cptl CY's middle-range seasonal profile. The measured spread is 44.9°F. The annual average is 55°F. Neither the annual mean nor one extreme month represents the full calendar on its own.
Harrisburg Cptl CY's 41.0 inches of annual precipitation falls in PlainClimate's middle band, so “wet” or “dry” is not the leading description. Snowfall is not added to the interpretation because its annual value is missing. Temperature balance and the calendar distribution carry more information than the annual moisture label alone.
These labels group NOAA 1991-2020 normals from Harrisburg Cptl CY's primary station, so the winter figures are a thirty-year average and not a floor: a single hard season can run well below them. Treat each band as a descriptive range for Harrisburg Cptl CY, not an official NOAA class or a year-ahead forecast.
Questions about Harrisburg Cptl CY's climate
How much rain does Harrisburg Cptl CY get? ▼
How cold does Harrisburg Cptl CY get in winter? ▼
How much energy does heating and cooling require in Harrisburg Cptl CY? ▼
Data Sources
Data source: NOAA U.S. Climate Normals v1.0.1 (1991-2020). All figures on this page are from Harrisburg Cptl CY's primary station: HARRISBURG CPTL CY AP (USW00014751). 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 Harrisburg Cptl CY; 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 Harrisburg Cptl CY 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.