Mt Morris, NY 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 Mt Morris's primary NOAA station, MT MORRIS 2 W.
The climate verdict for Mt Morris
Mt Morris, New York has a mixed annual climate rather than one dominant extreme. Its NOAA normal shows an annual average of 48°F. Its climate comfort score of 64/100 (good) lands mid-pack nationally, exceeding 49% of station-mapped location scores.
- 48°F
- annual average temperature (NOAA normal)
- 64/100
- comfort score, above 49% of station-mapped location scores
- 33.0"
- annual precipitation
- 170 days
- frost-free days per growing season
Mt Morris: NOAA 1991-2020 normals describe a typical year, not a forecast. Method: /methodology.
Normals record plate
Sheet USC00305597 · Mt Morris, NY 48°F mean · 33.0" precip
TEMP-COOL · RANK-COOL · PHOTO-FINISH · PRCP-MID · SWING-WIDE · COMF-MID · LOAD-HEAT · STN-1 · BOOK-FULL
- TEMP-COOL 48°F
- RANK-COOL #2,058
- PHOTO-FINISH ≈ Niagara Falls
- PRCP-MID 33.0"
- SWING-WIDE 47°F
- COMF-MID 64/100
- LOAD-HEAT 6,778 HDD
- STN-1 USC00305597
- BOOK-FULL 6/6 fields
Nearest mean-temperature peer: Niagara Falls, NY (+ 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 NY station list.
- Mt Morris (this station) 48°F
- Hot Shoup, ID 48°F
- Near Niagara Falls, NY 48°F
- Near Rochester Skyha…, NH 48°F
- Near E Milford, NH 48°F
Climate Living Index · Mt Morris
Mt Morris: 50/100 · grade D
Mt Morris publishes 4 of 6 Living Index dimensions (NOAA annual/seasonal normals · NOAA daily multivariate normals); 2 missing weights rescale to 100.
PlainClimate-derived for Mt Morris, not an official NOAA rating. Rankings still use Comfort Score 64/100 (separate formula). Breakpoints and limits.
| Dimension | Station value | Score |
|---|---|---|
| Precipitation balance | 33.0 in · 2.0 from 35 in | 92/100 · A |
| Normal heat + freeze calendar | 146 calendar days | 49/100 · D |
| Frost-free season | 170 days/year | 42/100 · D |
| Annual temperature balance | 47.7°F · 19.8° from 67.5°F | 30/100 · F |
Mt Morris · 2026-08-04 · NOAA NCEI Climate Normals · method · Comfort Score method.
Mt Morris is a continental Köppen climate: Dfb
Coldest-month mean 23.4°F and warmest-month mean 70.4°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
- 70.4°F
- Coldest month
- 23.4°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 Mt Morris sits across the climate record
Three NOAA fields for Mt Morris's primary station, temperature, precipitation, and seasonal swing, are ranked against every station-mapped normal that carries the same field.
- Annual temperature
- Cooler than 70%
- Among 6,861 stations, Mt Morris sits in the cooler third of annual means.
- Annual precipitation
- 44th percentile wetness
- Neither arid nor torrential versus 6,352 station totals.
- Seasonal temperature swing
- 68th percentile swing
- Typical seasonal amplitude versus 6,861 complete station-years.
How Mt Morris compares across U.S. station-mapped locations
Mt Morris's comfort score vs. all station-mapped locations
PlainClimate composite comfort index (1–100), NOAA 1991–2020 normals
64 49th percentile score exceeds 49% 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
Mt Morris's measured station temperature trend
MethodologyAcross 43 complete annual observations from 1955 to 2025, MT MORRIS 2 W warmed at a fitted rate of 0.23°C per decade. The line shows the fitted change relative to its first year, not raw year-to-year temperatures or a forecast.
- Mt Morris primary station fitted change +0.23 °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 | 31°F (0°C) | 15°F (-9°C) | 23°F (-5°C) | 1.9" | 28.4 | 0.0 |
| February | 34°F (1°C) | 17°F (-8°C) | 26°F (-4°C) | 1.5" | 26.0 | 0.0 |
| March | 42°F (6°C) | 24°F (-4°C) | 33°F (1°C) | 2.1" | 24.7 | 0.0 |
| April | 56°F (13°C) | 35°F (2°C) | 45°F (7°C) | 2.6" | 12.7 | 0.0 |
| May | 69°F (20°C) | 47°F (8°C) | 58°F (14°C) | 3.1" | 0.7 | 0.5 |
| June | 77°F (25°C) | 56°F (13°C) | 66°F (19°C) | 3.8" | 0.0 | 1.6 |
| July | 81°F (27°C) | 60°F (16°C) | 70°F (21°C) | 4.1" | 0.0 | 2.9 |
| August | 79°F (26°C) | 58°F (15°C) | 69°F (20°C) | 3.4" | 0.0 | 1.4 |
| September | 73°F (23°C) | 51°F (11°C) | 62°F (17°C) | 3.0" | 0.1 | 0.6 |
| October | 60°F (16°C) | 41°F (5°C) | 51°F (10°C) | 3.1" | 4.5 | 0.0 |
| November | 48°F (9°C) | 32°F (0°C) | 40°F (5°C) | 2.3" | 17.1 | 0.0 |
| December | 37°F (3°C) | 23°F (-5°C) | 30°F (-1°C) | 2.1" | 26.2 | 0.0 |
The year, day by day
Summer here tops out rather than builds: the warmest normal high is 81°F around July 14, short of 90°F on every date, while 146 dates carry a normal low at or below freezing, the coldest 14°F near January 22.
The freezing stretch
The normal low stays at or below 32°F into April 8, then returns to freezing around November 15, covering 146 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 January 9, when 49% of years recorded at least a hundredth of an inch. The driest is August 28 at 35%. Summed across the calendar, that is about 151 wet dates a year.
The widest day
May 9 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 Mt Morris.
Where Mt Morris Stands Nationally
Days and nights track unusually close together; the widest normal swing, about 23°F, is narrower than most stations record.
Mt Morris 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
16.1 days with precipitation
12.2 days with precipitation
11.8 days with precipitation
12.8 days with precipitation
12.8 days with precipitation
12.2 days with precipitation
11.4 days with precipitation
11.0 days with precipitation
11.2 days with precipitation
14.1 days with precipitation
11.6 days with precipitation
13.3 days with precipitation
Mt Morris spreads its precipitation across the year
Neither half of the year dominates here: June through August take 34% of the annual total and December through February 17%, with neither reaching the 35% that would mark a distinct wet season. Mt Morris has no dry season to plan around, though it does carry a wide 47°F gap between its warmest and coldest month.
The gap between the wettest and driest month still matters: July averages 4.1" and February 1.5". The three wettest months together take 34% 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 Mt Morris's precipitation splits across the calendar
About 151 days a year record measurable precipitation here, carrying 33.1" between them, or roughly 0.22 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 17
50% probability date
Last Spring Freeze
April 30
50% probability date
Growing Season
170 days
Heating & Cooling Degree Days
Annual totals indicate energy demand for heating and cooling
Heating Degree Days
6,778
Higher = more heating needed
Cooling Degree Days
522
Higher = more cooling needed
Warmest Month
July
Coldest Month
January
Nationwide similar cities
Other rankable U.S. places outside NY closest to Mt Morris 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 (48°F here).
- Belchertown, MA 48°F · 0.0°F off
- Briggsdale, CO 48°F · 0.0°F off
- Canby, CA 48°F · 0.0°F off
- Chester, CA 48°F · 0.0°F off
Closest by annual precipitation
Nearest out-of-state peers by annual precipitation (33.0" here), excluding temperature-peer places.
- Cass City, MI 33.0" · 0.0" off
- Sac City, IA 33.0" · 0.0" off
- Austin, TX 33.0" · 0.0" off
- Springfield, NE 33.1" · 0.0" off
Data-derived climate profile
How Mt Morris's climate pattern fits together
heating led · moderate · mid swing
Mt Morris's energy balance leans toward cold weather: 6,778 annual heating degree days against 522 for cooling. Its 47.0°F seasonal range still makes the monthly rows more useful than the annual average alone.
Mt Morris's frost-free season lasts about 170 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 Mt Morris's middle-range seasonal profile. The measured spread is 47.0°F. The annual average is 48°F. Neither the annual mean nor one extreme month represents the full calendar on its own.
Mt Morris's 33.0 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 Mt Morris'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 Mt Morris, not an official NOAA class or a year-ahead forecast.
Questions about Mt Morris's climate
How much rain does Mt Morris get? ▼
How cold does Mt Morris get in winter? ▼
How much energy does heating and cooling require in Mt Morris? ▼
Data Sources
Data source: NOAA U.S. Climate Normals v1.0.1 (1991-2020). All figures on this page are from Mt Morris's primary station: MT MORRIS 2 W (USC00305597). 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 Mt Morris; 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 Mt Morris 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.