Kennebunkport, 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 Kennebunkport's primary NOAA station, KENNEBUNKPORT.
The climate verdict for Kennebunkport
Water is the standout signal in Kennebunkport, Maine: 52.0 inches of precipitation in a normal year. Against that wet profile, NOAA records an annual average of 45°F. At 49/100 (moderate) the climate comfort score falls in the bottom third of the station-mapped U.S. score corpus, exceeding only 18% of scores.
- 45°F
- average temperature, NOAA 1991-2020 normal
- 49/100
- comfort score, above 18% of station-mapped location scores
- 52.0"
- annual precipitation · 49" snow
- 147 days
- frost-free growing season
Kennebunkport: NOAA 1991-2020 normals describe a typical year, not a forecast. Method: /methodology.
Normals record plate
Sheet USC00174193 · Kennebunkport, ME 45°F mean · 52.0" precip
TEMP-COOL · RANK-COOL · PHOTO-FINISH · PRCP-WET · SWING-MID · COMF-LOW · LOAD-HEAT · STN-1 · BOOK-FULL
- TEMP-COOL 45°F
- RANK-COOL #1,372
- PHOTO-FINISH ≈ Augusta
- PRCP-WET 52.0"
- SWING-MID 44°F
- COMF-LOW 49/100
- LOAD-HEAT 7,380 HDD
- STN-1 USC00174193
- BOOK-FULL 6/6 fields
Nearest mean-temperature peer: Augusta, MT (+ 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.
- Hot Wellsboro, PA 46°F
- Kennebunkport (this station) 45°F
- Near Augusta, MT 45°F
- Near Lamoille Yost, NV 45°F
- Near Livingston Miss…, MT 45°F
Kennebunkport 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 · Kennebunkport
Kennebunkport: 30/100 · grade F
Kennebunkport publishes 5 of 6 Living Index dimensions (NOAA annual/seasonal normals · NOAA daily multivariate normals); 1 missing weight rescale to 100.
PlainClimate-derived for Kennebunkport, not an official NOAA rating. Rankings still use Comfort Score 49/100 (separate formula). Breakpoints and limits.
| Dimension | Station value | Score |
|---|---|---|
| Precipitation balance | 52.0 in · 17.0 from 35 in | 40/100 · D |
| Normal heat + freeze calendar | 162 calendar days | 38/100 · F |
| Frost-free season | 147 days/year | 23/100 · F |
| Snowfall burden | 48.9 inches/year | 22/100 · F |
| Annual temperature balance | 45.3°F · 22.2° from 67.5°F | 21/100 · F |
Kennebunkport · 2026-08-04 · NOAA NCEI Climate Normals · method · Comfort Score method.
Kennebunkport is a continental Köppen climate: Dfb
Coldest-month mean 22.9°F and warmest-month mean 67.3°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
- 67.3°F
- Coldest month
- 22.9°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 Kennebunkport sits across the climate record
Three NOAA fields for Kennebunkport's primary station, temperature, precipitation, and seasonal swing, are ranked against every station-mapped normal that carries the same field.
- Annual temperature
- Cooler than 80%
- Among 6,861 stations, Kennebunkport sits in the cooler third of annual means.
- Annual precipitation
- Top 15% wettest
- Kennebunkport's annual total ranks in the wetter third of 6,352 measured normals.
- Seasonal temperature swing
- 55th percentile swing
- Typical seasonal amplitude versus 6,861 complete station-years.
How Kennebunkport compares across U.S. station-mapped locations
Kennebunkport's comfort score vs. all station-mapped locations
PlainClimate composite comfort index (1–100), NOAA 1991–2020 normals
49 18th percentile score exceeds 18% 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 | 33°F (0°C) | 13°F (-10°C) | 23°F (-5°C) | 3.6" | 13.3" | 29.4 | 0.0 |
| February | 35°F (2°C) | 14°F (-10°C) | 25°F (-4°C) | 3.7" | 13.3" | 26.7 | 0.0 |
| March | 41°F (5°C) | 23°F (-5°C) | 32°F (0°C) | 4.7" | 9.8" | 26.2 | 0.0 |
| April | 52°F (11°C) | 32°F (0°C) | 42°F (6°C) | 4.7" | 1.3" | 16.2 | 0.1 |
| May | 62°F (16°C) | 43°F (6°C) | 52°F (11°C) | 4.2" | 0.0" | 2.6 | 0.3 |
| June | 71°F (22°C) | 52°F (11°C) | 62°F (16°C) | 4.7" | 0.0" | 0.0 | 0.8 |
| July | 77°F (25°C) | 58°F (14°C) | 67°F (20°C) | 3.9" | 0.0" | 0.0 | 1.5 |
| August | 76°F (24°C) | 57°F (14°C) | 66°F (19°C) | 3.9" | 0.0" | 0.1 | 0.6 |
| September | 69°F (21°C) | 49°F (9°C) | 59°F (15°C) | 3.9" | 0.0" | 0.9 | 0.3 |
| October | 59°F (15°C) | 38°F (3°C) | 48°F (9°C) | 5.6" | 0.1" | 10.1 | 0.0 |
| November | 48°F (9°C) | 29°F (-2°C) | 39°F (4°C) | 4.2" | 0.7" | 20.1 | 0.0 |
| December | 39°F (4°C) | 20°F (-7°C) | 29°F (-1°C) | 4.8" | 10.4" | 27.5 | 0.0 |
The year, day by day
Summer here tops out rather than builds: the warmest normal high is 77°F around July 20, short of 90°F on every date, while 162 dates carry a normal low at or below freezing, the coldest 12°F near January 24.
The freezing stretch
The normal low stays at or below 32°F into April 14, then returns to freezing around November 5, covering 162 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 2, when 42% of years recorded at least a hundredth of an inch. The driest is August 31 at 30%. Summed across the calendar, that is about 134 wet dates a year.
The widest day
October 8 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 Kennebunkport.
Where Kennebunkport Stands Nationally
The normal water year runs well above the national norm at roughly 52 inches.
Days and nights track unusually close together; the widest normal swing, about 22°F, is narrower than most stations record.
Kennebunkport earns 2 nationally notable standings (outer quintiles) against 6,860 NOAA 1991–2020 normals stations; only those extremes render.
Monthly Precipitation
Average monthly rainfall and snowfall
Snow: 13.3"
10.7 days with precipitation
Snow: 13.3"
9.0 days with precipitation
Snow: 9.8"
10.6 days with precipitation
Snow: 1.3"
11.9 days with precipitation
12.8 days with precipitation
12.7 days with precipitation
11.0 days with precipitation
10.1 days with precipitation
9.9 days with precipitation
Snow: 0.1"
12.1 days with precipitation
Snow: 0.7"
11.1 days with precipitation
Snow: 10.4"
12.2 days with precipitation
Kennebunkport 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. Kennebunkport has no dry season to plan around, though it does carry a 44.4°F seasonal spread.
The gap between the wettest and driest month still matters: October averages 5.6" and January 3.6". The three wettest months together take 29% 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.
When it rains in Kennebunkport, it arrives in quantity
52.0" of precipitation falls across only about 134 wet days here, averaging 0.39 inches each. Fewer days carry more water: the year's total is delivered in comparatively heavy events rather than persistent damp.
- Days with measurable precipitation
- about 134 a year, 37% of all days
- Average depth per wet day
- 0.39 inches
- Most wet days
- May, about 13
- Fewest wet days
- February, about 9
A wet day is one recording at least 0.01 inches. These are 1991-2020 normals: they describe an average year, and a per-day average is not a forecast of any individual storm.
Winter brings real snow to Kennebunkport
Kennebunkport averages 48.9 inches of snowfall a year, with January the snowiest month on the normals, spread across roughly 19 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: 48.9 inches of depth.
- Days recording measurable snow: about 19 a year.
- At a rough ten-to-one melt ratio, snow accounts for on the order of 9% 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 3
50% probability date
Last Spring Freeze
May 9
50% probability date
Growing Season
147 days
Heating & Cooling Degree Days
Annual totals indicate energy demand for heating and cooling
Heating Degree Days
7,380
Higher = more heating needed
Cooling Degree Days
251
Higher = more cooling needed
Warmest Month
July
Coldest Month
January
Nationwide similar cities
Other rankable U.S. places outside ME closest to Kennebunkport 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 (45°F here).
- Cherry Valley, NY 45°F · 0.0°F off
- Delhi, NY 45°F · 0.0°F off
- Ekalaka, MT 45°F · 0.0°F off
- Liberty, NY 45°F · 0.0°F off
Closest by annual precipitation
Nearest out-of-state peers by annual precipitation (52.0" here), excluding temperature-peer places.
- Wauchula, FL 52.0" · 0.0" off
- Bent Creek, NC 52.0" · 0.0" off
- Jonesboro, AR 52.0" · 0.0" off
- Pelion, SC 52.0" · 0.0" off
Snow and freeze rhythm
When cold and snow define Kennebunkport
heating led · wet · mid swing
Kennebunkport's energy balance leans toward cold weather: 7,380 annual heating degree days against 251 for cooling. Its 44.4°F seasonal range still makes the monthly rows more useful than the annual average alone.
Only about 147 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. Kennebunkport coldest normal
January
Averaging 23°F (-5°C), this month sits below freezing for the month as a whole, not merely overnight.
-
2. Kennebunkport typical freeze period
January through December
The station reports average freezing days from January through December.
-
3. Kennebunkport snow peak
January
Kennebunkport averages 48.9 inches of snow a year, with January the snowiest month on the normals.
Questions about Kennebunkport's climate
How much snow does Kennebunkport get? ▼
How cold does Kennebunkport get in winter? ▼
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Data Sources
Data source: NOAA U.S. Climate Normals v1.0.1 (1991-2020). All figures on this page are from Kennebunkport's primary station: KENNEBUNKPORT (USC00174193). 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 2336710), not an incorporated municipality. Match rule for Kennebunkport: 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 Kennebunkport 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.