Wiscasset, ME Climate: Temperature & Rain by Month
Average temperature and precipitation from NOAA NCEI 1991–2020 normals →, with a derived climate comfort score
30-year climate normals (1991-2020) from Wiscasset's primary NOAA station, WISCASSET AP.
The climate verdict for Wiscasset
Water is the standout signal in Wiscasset, Maine: 46.7 inches of precipitation in a normal year. Against that wet profile, NOAA records an annual average of 46°F. Its climate comfort score of 64/100 (good) lands mid-pack nationally, exceeding 49% of station-mapped location scores.
- 46°F
- yearly average temperature, NOAA normal
- 64/100
- comfort score, above 49% of station-mapped location scores
- 46.7"
- yearly precipitation total
- 152 days
- frost-free days per growing season
Wiscasset: NOAA 1991-2020 normals describe a typical year, not a forecast. Method: /methodology.
Normals record plate
Sheet USW00094623 · Wiscasset, ME 46°F mean · 46.7" precip
TEMP-COOL · RANK-COOL · PHOTO-FINISH · PRCP-MID · SWING-WIDE · COMF-MID · LOAD-HEAT · STN-1 · BOOK-FULL
- TEMP-COOL 46°F
- RANK-COOL #1,509
- PHOTO-FINISH ≈ Rock Hill
- PRCP-MID 46.7"
- SWING-WIDE 47°F
- COMF-MID 64/100
- LOAD-HEAT 7,232 HDD
- STN-1 USW00094623
- BOOK-FULL 6/6 fields
Nearest mean-temperature peer: Rock Hill, NY (+ 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 ME station list.
- Wiscasset (this station) 46°F
- Hot Burns, OR 46°F
- Near Rock Hill, NY 46°F
- Near Pittsfield, MA 46°F
- Near Allegany State…, NY 46°F
Wiscasset 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 · Wiscasset
Wiscasset: 36/100 · grade F
Wiscasset publishes 4 of 6 Living Index dimensions (NOAA annual/seasonal normals · NOAA daily multivariate normals); 2 missing weights rescale to 100.
PlainClimate-derived for Wiscasset, not an official NOAA rating. Rankings still use Comfort Score 64/100 (separate formula). Breakpoints and limits.
| Dimension | Station value | Score |
|---|---|---|
| Precipitation balance | 46.7 in · 11.7 from 35 in | 59/100 · C |
| Normal heat + freeze calendar | 159 calendar days | 40/100 · D |
| Frost-free season | 152 days/year | 27/100 · F |
| Annual temperature balance | 45.9°F · 21.6° from 67.5°F | 23/100 · F |
Wiscasset · 2026-08-04 · NOAA NCEI Climate Normals · method · Comfort Score method.
Wiscasset is a continental Köppen climate: Dfb
Coldest-month mean 22.1°F and warmest-month mean 68.7°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
- 68.7°F
- Coldest month
- 22.1°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 Wiscasset sits across the climate record
Three NOAA fields for Wiscasset's primary station, temperature, precipitation, and seasonal swing, are ranked against every station-mapped normal that carries the same field.
- Annual temperature
- Cooler than 78%
- Among 6,861 stations, Wiscasset sits in the cooler third of annual means.
- Annual precipitation
- Top 28% wettest
- Wiscasset's annual total ranks in the wetter third of 6,352 measured normals.
- Seasonal temperature swing
- 67th percentile swing
- Typical seasonal amplitude versus 6,861 complete station-years.
How Wiscasset compares across U.S. station-mapped locations
Wiscasset'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
Monthly Temperatures
Average daily high and low temperatures by month
| Month | Avg High | Avg Low | Mean | Precip | Freeze Days | 90°F+ Days |
|---|---|---|---|---|---|---|
| January | 32°F (0°C) | 12°F (-11°C) | 22°F (-5°C) | 3.5" | 30.0 | 0.0 |
| February | 35°F (2°C) | 14°F (-10°C) | 24°F (-4°C) | 3.1" | 26.8 | 0.0 |
| March | 43°F (6°C) | 23°F (-5°C) | 33°F (0°C) | 3.8" | 26.6 | 0.0 |
| April | 54°F (12°C) | 33°F (0°C) | 43°F (6°C) | 3.9" | 16.5 | 0.0 |
| May | 65°F (18°C) | 42°F (6°C) | 54°F (12°C) | 3.5" | 2.8 | 0.2 |
| June | 74°F (23°C) | 52°F (11°C) | 63°F (17°C) | 4.5" | 0.0 | 0.6 |
| July | 79°F (26°C) | 58°F (14°C) | 69°F (20°C) | 3.4" | 0.0 | 1.2 |
| August | 79°F (26°C) | 57°F (14°C) | 68°F (20°C) | 3.1" | 0.0 | 0.8 |
| September | 71°F (22°C) | 49°F (10°C) | 60°F (16°C) | 4.2" | 0.4 | 0.3 |
| October | 59°F (15°C) | 38°F (4°C) | 49°F (9°C) | 5.1" | 8.8 | 0.0 |
| November | 48°F (9°C) | 29°F (-1°C) | 39°F (4°C) | 4.5" | 19.8 | 0.0 |
| December | 38°F (3°C) | 20°F (-7°C) | 29°F (-2°C) | 4.2" | 28.0 | 0.0 |
The year, day by day
Summer here tops out rather than builds: the warmest normal high is 80°F around July 20, short of 90°F on every date, while 159 dates carry a normal low at or below freezing, the coldest 11°F near January 24.
The freezing stretch
The normal low stays at or below 32°F into April 13, then returns to freezing around November 7, covering 159 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 22, when 45% of years recorded at least a hundredth of an inch. The driest is February 2 at 36%. Summed across the calendar, that is about 147 wet dates a year.
The widest day
May 7 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 Wiscasset.
Where Wiscasset Stands Nationally
Days and nights track unusually close together; the widest normal swing, about 23°F, is narrower than most stations record.
Wiscasset 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
11.6 days with precipitation
10.5 days with precipitation
11.2 days with precipitation
11.7 days with precipitation
13.3 days with precipitation
14.2 days with precipitation
12.7 days with precipitation
12.7 days with precipitation
11.8 days with precipitation
13.2 days with precipitation
11.9 days with precipitation
12.3 days with precipitation
Wiscasset spreads its precipitation across the year
Neither half of the year dominates here: June through August take 24% of the annual total and December through February 23%, with neither reaching the 35% that would mark a distinct wet season. Wiscasset has no dry season to plan around, though it does carry a wide 46.6°F gap between its warmest and coldest month.
The gap between the wettest and driest month still matters: October averages 5.1" and August 3.1". 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 Wiscasset's precipitation splits across the calendar
About 147 days a year record measurable precipitation here, carrying 46.7" 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
October 7
50% probability date
Last Spring Freeze
May 8
50% probability date
Growing Season
152 days
Heating & Cooling Degree Days
Annual totals indicate energy demand for heating and cooling
Heating Degree Days
7,232
Higher = more heating needed
Cooling Degree Days
321
Higher = more cooling needed
Warmest Month
July
Coldest Month
January
Nationwide similar cities
Other rankable U.S. places outside ME closest to Wiscasset 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 (46°F here).
- Bradford, PA 46°F · 0.0°F off
- Elkader, IA 46°F · 0.0°F off
- Milan, MN 46°F · 0.0°F off
- New Ulm, MN 46°F · 0.0°F off
Closest by annual precipitation
Nearest out-of-state peers by annual precipitation (46.7" here), excluding temperature-peer places.
- Durham, NC 46.7" · 0.0" off
- Monticello, GA 46.7" · 0.0" off
- Laurens, SC 46.7" · 0.0" off
- Montrose, PA 46.7" · 0.0" off
Data-derived climate profile
How Wiscasset's climate pattern fits together
heating led · wet · mid swing
Wiscasset's energy balance leans toward cold weather: 7,232 annual heating degree days against 321 for cooling. Its 46.6°F seasonal range still makes the monthly rows more useful than the annual average alone.
Wiscasset's frost-free season lasts about 152 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 Wiscasset's middle-range seasonal profile. The measured spread is 46.6°F. The annual average is 46°F. Neither the annual mean nor one extreme month represents the full calendar on its own.
Alongside its heating load, Wiscasset carries 46.7 inches of precipitation in a normal year, inside PlainClimate's wet range. Snowfall is not added to the interpretation because its annual value is missing. That distinction matters because a wet annual total can arrive as rain, snow, or a mixture at different times.
These labels group NOAA 1991-2020 normals from Wiscasset'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 Wiscasset, not an official NOAA class or a year-ahead forecast.
Questions about Wiscasset's climate
How much rain does Wiscasset get? ▼
How cold does Wiscasset get in winter? ▼
How much energy does heating and cooling require in Wiscasset? ▼
Data Sources
Data source: NOAA U.S. Climate Normals v1.0.1 (1991-2020). All figures on this page are from Wiscasset's primary station: WISCASSET AP (USW00094623). For informational purposes only.
Place identity: U.S. Census Bureau 2024 Gazetteer places. The 2024 Census Gazetteer identifies the exact name-and-state match as a census-designated place (GEOID 2387040), not an incorporated municipality. Match rule for Wiscasset: exact normalized name + state only, no fuzzy expansion, so nearby differently spelled facilities stay unmatched.
On this page every temperature, precipitation, and derived score for Wiscasset 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.