Harmony, ME Climate: Temperature & Rain by Month
Explore NOAA NCEI's 1991–2020 climate normals → and a clearly labeled PlainClimate comfort calculation
30-year climate normals (1991-2020) from Harmony's primary NOAA station, HARMONY.
The climate verdict for Harmony
Harmony, Maine has a mixed annual climate rather than one dominant extreme. Its NOAA normal shows an annual average of 43°F. At 44/100 (moderate) the climate comfort score falls in the bottom third of the station-mapped U.S. score corpus, exceeding only 10% of scores.
- 43°F
- annual average temperature (NOAA normal)
- 44/100
- comfort score, above 10% of station-mapped location scores
- 44.6"
- annual precipitation · 79" snow
- 143 days
- frost-free growing season
Harmony: NOAA 1991-2020 normals describe a typical year, not a forecast. Method: /methodology.
Normals record plate
Sheet USC00173567 · Harmony, ME 43°F mean · 44.6" precip
TEMP-COOL · RANK-COOL · PHOTO-FINISH · PRCP-MID · SWING-WIDE · COMF-LOW · LOAD-HEAT · STN-1 · BOOK-FULL
- TEMP-COOL 43°F
- RANK-COOL #892
- PHOTO-FINISH ≈ Ellenburg Depot
- PRCP-MID 44.6"
- SWING-WIDE 52°F
- COMF-LOW 44/100
- LOAD-HEAT 8,160 HDD
- STN-1 USC00173567
- BOOK-FULL 6/6 fields
Nearest mean-temperature peer: Ellenburg Depot, 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 ME station list.
- Hot Alpena, MI 44°F
- Near Gouverneur, NY 44°F
- Harmony (this station) 43°F
- Cold E Sangerville, ME 43°F
- Near Ellenburg Depot, NY 43°F
Harmony sits in Maine, the #4 coldest U.S. state at 43.1°F statewide annual average - see all 50 coldest states ranked by NOAA normals
Climate Living Index · Harmony
Harmony: 26/100 · grade F
Harmony publishes 5 of 6 Living Index dimensions (NOAA annual/seasonal normals · NOAA daily multivariate normals); 1 missing weight rescale to 100.
PlainClimate-derived for Harmony, not an official NOAA rating. Rankings still use Comfort Score 44/100 (separate formula). Breakpoints and limits.
| Dimension | Station value | Score |
|---|---|---|
| Precipitation balance | 44.6 in · 9.6 from 35 in | 66/100 · C |
| Normal heat + freeze calendar | 182 calendar days | 24/100 · F |
| Frost-free season | 143 days/year | 20/100 · F |
| Annual temperature balance | 43.4°F · 24.1° from 67.5°F | 14/100 · F |
| Snowfall burden | 78.8 inches/year | 7/100 · F |
Harmony · 2026-08-04 · NOAA NCEI Climate Normals · method · Comfort Score method.
Harmony is a continental Köppen climate: Dfb
Coldest-month mean 16.3°F and warmest-month mean 68.5°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
- 68.5°F
- Coldest month
- 16.3°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 Harmony sits across the climate record
Three NOAA fields for Harmony's primary station, temperature, precipitation, and seasonal swing, are ranked against every station-mapped normal that carries the same field.
- Annual temperature
- Cooler than 87%
- Among 6,861 stations, Harmony sits in the cooler third of annual means.
- Annual precipitation
- 68th percentile wetness
- Neither arid nor torrential versus 6,352 station totals.
- Seasonal temperature swing
- Wider than 86%
- Warmest-to-coldest month gap for Harmony is large versus 6,861 complete station-years.
How Harmony compares across U.S. station-mapped locations
Harmony's comfort score vs. all station-mapped locations
PlainClimate composite comfort index (1–100), NOAA 1991–2020 normals
44 10th percentile score exceeds 10% 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%). This entry sits in this band.
- 50–60: 1,329 station-mapped locations (21%). Above this entry.
- 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 | 30°F (-1°C) | 3°F (-16°C) | 16°F (-9°C) | 3.2" | 17.1" | 30.3 | 0.0 |
| February | 32°F (0°C) | 3°F (-16°C) | 18°F (-8°C) | 2.6" | 20.3" | 27.6 | 0.0 |
| March | 41°F (5°C) | 14°F (-10°C) | 28°F (-2°C) | 3.4" | 16.0" | 29.1 | 0.0 |
| April | 54°F (12°C) | 28°F (-2°C) | 41°F (5°C) | 3.8" | 4.4" | 21.2 | 0.0 |
| May | 67°F (20°C) | 41°F (5°C) | 54°F (12°C) | 3.5" | 0.0" | 3.8 | 0.3 |
| June | 76°F (24°C) | 50°F (10°C) | 63°F (17°C) | 4.4" | 0.0" | 0.2 | 1.4 |
| July | 81°F (27°C) | 56°F (13°C) | 69°F (20°C) | 3.7" | 0.0" | 0.0 | 3.9 |
| August | 80°F (27°C) | 54°F (12°C) | 67°F (19°C) | 3.7" | 0.0" | 0.0 | 1.6 |
| September | 73°F (23°C) | 45°F (7°C) | 59°F (15°C) | 3.6" | 0.0" | 1.8 | 0.4 |
| October | 59°F (15°C) | 35°F (1°C) | 47°F (8°C) | 4.9" | 0.4" | 10.7 | 0.0 |
| November | 46°F (8°C) | 25°F (-4°C) | 36°F (2°C) | 4.0" | 4.5" | 24.4 | 0.0 |
| December | 35°F (2°C) | 13°F (-11°C) | 24°F (-5°C) | 3.9" | 16.1" | 29.1 | 0.0 |
The year, day by day
Summer here tops out rather than builds: the warmest normal high is 82°F around July 20, short of 90°F on every date, while 182 dates carry a normal low at or below freezing, the coldest 1°F near January 31.
The freezing stretch
The normal low stays at or below 32°F into April 23, then returns to freezing around October 25, covering 182 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 June 4, when 46% of years recorded at least a hundredth of an inch. The driest is February 4 at 34%. Summed across the calendar, that is about 143 wet dates a year.
The widest day
February 15 carries the biggest normal gap between afternoon and dawn, 29°F between the normal high and the normal low.
Look up any date
Any date's 1991–2020 normal for Harmony.
Where Harmony Stands Nationally
Freezing is routine here by normals standards — the normal low reaches 32°F or colder on about 182 nights a year, more than most ranked stations.
Harmony 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: 17.1"
11.0 days with precipitation
Snow: 20.3"
9.6 days with precipitation
Snow: 16.0"
10.8 days with precipitation
Snow: 4.4"
11.2 days with precipitation
13.5 days with precipitation
14.1 days with precipitation
13.5 days with precipitation
11.5 days with precipitation
10.4 days with precipitation
Snow: 0.4"
12.5 days with precipitation
Snow: 4.5"
11.4 days with precipitation
Snow: 16.1"
12.9 days with precipitation
Harmony 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 22%, with neither reaching the 35% that would mark a distinct wet season. Harmony has no dry season to plan around, though it does carry a wide 52.2°F gap between its warmest and coldest month.
The gap between the wettest and driest month still matters: October averages 4.9" and February 2.6". 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 Harmony's precipitation splits across the calendar
About 142 days a year record measurable precipitation here, carrying 44.6" between them, or roughly 0.31 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.
Winter brings real snow to Harmony
Harmony averages 78.8 inches of snowfall a year, with February the snowiest month on the normals, spread across roughly 29 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: 78.8 inches of depth.
- Days recording measurable snow: about 29 a year.
- At a rough ten-to-one melt ratio, snow accounts for on the order of 18% 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 1
50% probability date
Last Spring Freeze
May 11
50% probability date
Growing Season
143 days
Heating & Cooling Degree Days
Annual totals indicate energy demand for heating and cooling
Heating Degree Days
8,160
Higher = more heating needed
Cooling Degree Days
316
Higher = more cooling needed
Warmest Month
July
Coldest Month
January
Nationwide similar cities
Other rankable U.S. places outside ME closest to Harmony 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 (43°F here).
- Ashton, ID 43°F · 0.0°F off
- Atlanta, MI 43°F · 0.0°F off
- Buffalo, WY 43°F · 0.0°F off
- Minot, ND 43°F · 0.0°F off
Closest by annual precipitation
Nearest out-of-state peers by annual precipitation (44.6" here), excluding temperature-peer places.
- Chanute, KS 44.6" · 0.0" off
- Wills Point, TX 44.6" · 0.0" off
- Independence, MO 44.7" · 0.0" off
- Iuka, IL 44.7" · 0.0" off
Snow and freeze rhythm
When cold and snow define Harmony
heating led · moderate · mid swing
Harmony's energy balance leans toward cold weather: 8,160 annual heating degree days against 316 for cooling. Its 52.2°F seasonal range still makes the monthly rows more useful than the annual average alone.
Only about 143 days are frost-free in a normal year. That short interval is consistent with the cold-season signal, but the measure does not predict the exact first or last freeze in any one year.
-
1. Harmony coldest normal
January
Averaging 16°F (-9°C), this month sits below freezing for the month as a whole, not merely overnight.
-
2. Harmony typical freeze period
January through December
The station reports average freezing days from January through December.
-
3. Harmony snow peak
February
Harmony averages 78.8 inches of snow a year, with February the snowiest month on the normals.
Questions about Harmony's climate
How much snow does Harmony get? ▼
How cold does Harmony get in winter? ▼
How much energy does heating and cooling require in Harmony? ▼
Data Sources
Data source: NOAA U.S. Climate Normals v1.0.1 (1991-2020). All figures on this page are from Harmony's primary station: HARMONY (USC00173567). 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 Harmony; 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 Harmony 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.