Altoona Blair County, 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 Altoona Blair County's primary NOAA station, ALTOONA BLAIR CO AP.
The climate verdict for Altoona Blair County
Altoona Blair County, Pennsylvania has a mixed annual climate rather than one dominant extreme. Its NOAA normal shows an annual average of 51°F. Its climate comfort score of 68/100 (good) lands mid-pack nationally, exceeding 56% of station-mapped location scores.
- 51°F
- annual average temperature (NOAA normal)
- 68/100
- comfort score, above 56% of station-mapped location scores
- 36.6"
- yearly precipitation total
- 181 days
- growing season, frost-free days
Altoona Blair County: NOAA 1991-2020 normals describe a typical year, not a forecast. Method: /methodology.
Normals record plate
Sheet USW00014736 · Altoona Blair County, PA 51°F mean · 36.6" precip
TEMP-COOL · RANK-MID · PHOTO-FINISH · PRCP-MID · SWING-MID · COMF-MID · LOAD-HEAT · STN-1 · BOOK-FULL
- TEMP-COOL 51°F
- RANK-MID #3,087
- PHOTO-FINISH ≈ Rye Patch Dam
- PRCP-MID 36.6"
- SWING-MID 44°F
- COMF-MID 68/100
- LOAD-HEAT 5,764 HDD
- STN-1 USW00014736
- BOOK-FULL 6/6 fields
Nearest mean-temperature peer: Rye Patch Dam, NV (+ 0.1 °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.
- Altoona Blair C… (this station) 51°F
- Hot Alpine, UT 51°F
- Near Rye Patch Dam, NV 51°F
- Near Lukachukai, AZ 51°F
- Near Taunton, MA 51°F
Climate Living Index · Altoona Blair County
Altoona Blair County: 61/100 · grade C
Altoona Blair County publishes 5 of 6 Living Index dimensions (NOAA annual/seasonal normals · NOAA daily multivariate normals · NOAA hourly normals); 1 missing weight rescale to 100.
PlainClimate-derived for Altoona Blair County, not an official NOAA rating. Rankings still use Comfort Score 68/100 (separate formula). Breakpoints and limits.
| Dimension | Station value | Score |
|---|---|---|
| Precipitation balance | 36.6 in · 1.6 from 35 in | 92/100 · A |
| Normal heat + freeze calendar | 122 calendar days | 63/100 · C |
| Summer moisture balance | 60.6°F mean dew point | 59/100 · C |
| Frost-free season | 181 days/year | 51/100 · D |
| Annual temperature balance | 51.0°F · 16.5° from 67.5°F | 45/100 · D |
Altoona Blair County · 2026-08-04 · NOAA NCEI Climate Normals · method · Comfort Score method.
Altoona Blair County is a continental Köppen climate: Dfa
Coldest-month mean 28.4°F and warmest-month mean 72.4°F place this station in continental, no dry season, hot summer climates (Dfa). Class Dfa is the Peel et al. (2007) label for this station's monthly mean temperature and precipitation normals: continental, specifically continental, no dry season, hot summer.
- Köppen code
- Dfa
- Group
- Continental
- Warmest month
- 72.4°F
- Coldest month
- 28.4°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 Altoona Blair County sits across the climate record
Three NOAA fields for Altoona Blair County's primary station, temperature, precipitation, and seasonal swing, are ranked against every station-mapped normal that carries the same field.
- Annual temperature
- 45th percentile warmth
- Mid-pack annual mean versus 6,861 station normals.
- Annual precipitation
- 51st percentile wetness
- Neither arid nor torrential versus 6,352 station totals.
- Seasonal temperature swing
- 54th percentile swing
- Typical seasonal amplitude versus 6,861 complete station-years.
How Altoona Blair County compares across U.S. station-mapped locations
Altoona Blair County's comfort score vs. all station-mapped locations
PlainClimate composite comfort index (1–100), NOAA 1991–2020 normals
68 Top 44% score exceeds 56% 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%). This entry sits in this band.
- 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
Altoona Blair County's measured station temperature trend
MethodologyAcross 59 complete annual observations from 1949 to 2025, ALTOONA BLAIR CO AP warmed at a fitted rate of 0.19°C per decade. The line shows the fitted change relative to its first year, not raw year-to-year temperatures or a forecast.
- Altoona Blair County primary station fitted change +0.19 °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 | 36°F (2°C) | 21°F (-6°C) | 28°F (-2°C) | 2.2" | 26.3 | 0.0 |
| February | 39°F (4°C) | 23°F (-5°C) | 31°F (-1°C) | 1.9" | 23.5 | 0.0 |
| March | 48°F (9°C) | 30°F (-1°C) | 39°F (4°C) | 3.0" | 19.4 | 0.0 |
| April | 61°F (16°C) | 40°F (4°C) | 50°F (10°C) | 3.3" | 6.5 | 0.0 |
| May | 71°F (22°C) | 50°F (10°C) | 60°F (16°C) | 3.7" | 0.5 | 0.3 |
| June | 79°F (26°C) | 58°F (15°C) | 69°F (20°C) | 3.4" | 0.0 | 1.1 |
| July | 83°F (28°C) | 62°F (17°C) | 72°F (22°C) | 3.5" | 0.0 | 3.8 |
| August | 81°F (27°C) | 60°F (16°C) | 71°F (21°C) | 3.3" | 0.0 | 2.0 |
| September | 74°F (23°C) | 53°F (12°C) | 64°F (18°C) | 4.0" | 0.1 | 0.8 |
| October | 63°F (17°C) | 43°F (6°C) | 53°F (12°C) | 2.9" | 3.1 | 0.0 |
| November | 51°F (10°C) | 34°F (1°C) | 42°F (6°C) | 2.9" | 13.8 | 0.0 |
| December | 40°F (4°C) | 26°F (-3°C) | 33°F (1°C) | 2.6" | 24.4 | 0.0 |
The year, day by day
Summer here tops out rather than builds: the warmest normal high is 83°F around July 12, short of 90°F on every date, while 122 dates carry a normal low at or below freezing, the coldest 21°F near January 22.
The freezing stretch
The normal low stays at or below 32°F into March 23, then returns to freezing around November 23, covering 122 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 11, when 44% of years recorded at least a hundredth of an inch. The driest is September 3 at 33%. Summed across the calendar, that is about 136 wet dates a year.
The widest day
April 26 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 Altoona Blair County.
Where Altoona Blair County Stands Nationally
Days and nights track unusually close together; the widest normal swing, about 22°F, is narrower than most stations record.
Altoona Blair County 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
11.2 days with precipitation
9.7 days with precipitation
12.0 days with precipitation
12.7 days with precipitation
13.6 days with precipitation
12.3 days with precipitation
12.1 days with precipitation
10.8 days with precipitation
10.3 days with precipitation
10.8 days with precipitation
9.9 days with precipitation
10.3 days with precipitation
Altoona Blair County spreads its precipitation across the year
Neither half of the year dominates here: June through August take 28% of the annual total and December through February 18%, with neither reaching the 35% that would mark a distinct wet season. Altoona Blair County has no dry season to plan around, though it does carry a 44°F seasonal spread.
The gap between the wettest and driest month still matters: September averages 4.0" and February 1.9". 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.
How Altoona Blair County's precipitation splits across the calendar
About 136 days a year record measurable precipitation here, carrying 36.7" between them, or roughly 0.27 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
October 21
50% probability date
Last Spring Freeze
April 23
50% probability date
Growing Season
181 days
Heating & Cooling Degree Days
Annual totals indicate energy demand for heating and cooling
Heating Degree Days
5,764
Higher = more heating needed
Cooling Degree Days
692
Higher = more cooling needed
Warmest Month
July
Coldest Month
January
Humidity & Wind
Monthly averages from hourly observations
| Month | Humidity | Wind (mph) | Clear Sky % | Overcast % |
|---|---|---|---|---|
| January | 67% | 8.9 | 30% | 43% |
| February | 66% | 9.1 | 32% | 43% |
| March | 60% | 8.8 | 37% | 36% |
| April | 61% | 7.6 | 38% | 28% |
| May | 70% | 6.4 | 36% | 25% |
| June | 71% | 5.6 | 41% | 16% |
| July | 74% | 4.8 | 40% | 17% |
| August | 75% | 4.4 | 45% | 19% |
| September | 75% | 5.8 | 43% | 26% |
| October | 67% | 7.5 | 41% | 34% |
| November | 69% | 8.2 | 31% | 42% |
| December | 71% | 8.8 | 30% | 46% |
Nationwide similar cities
Other rankable U.S. places outside PA closest to Altoona Blair County 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 (51°F here).
- Deseret, UT 51°F · 0.0°F off
- Elwood, IN 51°F · 0.0°F off
- Gothenburg, NE 51°F · 0.0°F off
- Hastings, NE 51°F · 0.0°F off
Closest by annual precipitation
Nearest out-of-state peers by annual precipitation (36.6" here), excluding temperature-peer places.
- Clarinda, IA 36.6" · 0.0" off
- Greenville, MI 36.6" · 0.0" off
- Adrian, MI 36.7" · 0.0" off
- Maquoketa, IA 36.7" · 0.0" off
Data-derived climate profile
How Altoona Blair County's climate pattern fits together
heating led · moderate · mid swing
Altoona Blair County's energy balance leans toward cold weather: 5,764 annual heating degree days against 692 for cooling. Its 44.0°F seasonal range still makes the monthly rows more useful than the annual average alone.
Altoona Blair County's frost-free season lasts about 181 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 Altoona Blair County's middle-range seasonal profile. The measured spread is 44.0°F. The annual average is 51°F. Neither the annual mean nor one extreme month represents the full calendar on its own.
Altoona Blair County's 36.6 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 Altoona Blair County'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 Altoona Blair County, not an official NOAA class or a year-ahead forecast.
Questions about Altoona Blair County's climate
How much rain does Altoona Blair County get? ▼
How cold does Altoona Blair County get in winter? ▼
How much energy does heating and cooling require in Altoona Blair County? ▼
Data Sources
Data source: NOAA U.S. Climate Normals v1.0.1 (1991-2020). All figures on this page are from Altoona Blair County's primary station: ALTOONA BLAIR CO AP (USW00014736). 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 Altoona Blair County; 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 Altoona Blair County 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.