Jonesboro, ME Climate: Temperature & Rain by Month
Pulled from NOAA NCEI 1991–2020 normals →: climate measurements used in PlainClimate's documented score
30-year climate normals (1991-2020) from Jonesboro's primary NOAA station, JONESBORO.
The climate verdict for Jonesboro
Water is the standout signal in Jonesboro, Maine: 50.8 inches of precipitation in a normal year. Against that wet profile, NOAA records an annual average of 44°F. At 40/100 (moderate) the climate comfort score falls in the bottom third of the station-mapped U.S. score corpus, exceeding only 6% of scores.
- 44°F
- annual average temperature (NOAA normal)
- 40/100
- comfort score, above 6% of station-mapped location scores
- 50.8"
- precipitation, annual total
- 159 days
- frost-free days per growing season
Jonesboro: NOAA 1991-2020 normals describe a typical year, not a forecast. Method: /methodology.
Normals record plate
Sheet USC00174183 · Jonesboro, ME 44°F mean · 50.8" precip
TEMP-COOL · RANK-COOL · PHOTO-FINISH · PRCP-WET · SWING-WIDE · COMF-LOW · LOAD-HEAT · STN-1 · BOOK-FULL
- TEMP-COOL 44°F
- RANK-COOL #1,029
- PHOTO-FINISH ≈ Belfast
- PRCP-WET 50.8"
- SWING-WIDE 47°F
- COMF-LOW 40/100
- LOAD-HEAT 7,788 HDD
- STN-1 USC00174183
- BOOK-FULL 6/6 fields
Nearest mean-temperature peer: Belfast, ME (+ 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.
- Jonesboro (this station) 44°F
- Hot Joseph, OR 44°F
- Near Belfast, ME 44°F
- Near Oswayo, PA 44°F
- Near Clermont, PA 44°F
Jonesboro 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 · Jonesboro
Jonesboro: 32/100 · grade F
Jonesboro publishes 4 of 6 Living Index dimensions (NOAA annual/seasonal normals · NOAA daily multivariate normals); 2 missing weights rescale to 100.
PlainClimate-derived for Jonesboro, not an official NOAA rating. Rankings still use Comfort Score 40/100 (separate formula). Breakpoints and limits.
| Dimension | Station value | Score |
|---|---|---|
| Precipitation balance | 50.8 in · 15.8 from 35 in | 44/100 · D |
| Normal heat + freeze calendar | 159 calendar days | 40/100 · D |
| Frost-free season | 159 days/year | 33/100 · F |
| Annual temperature balance | 44.0°F · 23.5° from 67.5°F | 16/100 · F |
Jonesboro · 2026-08-04 · NOAA NCEI Climate Normals · method · Comfort Score method.
Jonesboro is a continental Köppen climate: Dfb
Coldest-month mean 19.1°F and warmest-month mean 66.0°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
- 66.0°F
- Coldest month
- 19.1°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 Jonesboro sits across the climate record
Three NOAA fields for Jonesboro's primary station, temperature, precipitation, and seasonal swing, are ranked against every station-mapped normal that carries the same field.
- Annual temperature
- Cooler than 85%
- Among 6,861 stations, Jonesboro sits in the cooler third of annual means.
- Annual precipitation
- Top 18% wettest
- Jonesboro's annual total ranks in the wetter third of 6,352 measured normals.
- Seasonal temperature swing
- 68th percentile swing
- Typical seasonal amplitude versus 6,861 complete station-years.
How Jonesboro compares across U.S. station-mapped locations
Jonesboro's comfort score vs. all station-mapped locations
PlainClimate composite comfort index (1–100), NOAA 1991–2020 normals
40 6th percentile score exceeds 6% 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 | Freeze Days | 90°F+ Days |
|---|---|---|---|---|---|---|
| January | 29°F (-2°C) | 9°F (-13°C) | 19°F (-7°C) | 4.3" | 29.9 | 0.0 |
| February | 32°F (0°C) | 12°F (-11°C) | 22°F (-6°C) | 3.8" | 26.4 | 0.0 |
| March | 39°F (4°C) | 22°F (-6°C) | 31°F (-1°C) | 4.6" | 27.3 | 0.0 |
| April | 51°F (11°C) | 32°F (0°C) | 42°F (5°C) | 4.3" | 17.8 | 0.0 |
| May | 61°F (16°C) | 42°F (6°C) | 52°F (11°C) | 3.9" | 1.9 | 0.1 |
| June | 70°F (21°C) | 51°F (10°C) | 60°F (16°C) | 3.5" | 0.0 | 0.8 |
| July | 76°F (25°C) | 56°F (13°C) | 66°F (19°C) | 3.4" | 0.0 | 0.4 |
| August | 76°F (25°C) | 55°F (13°C) | 66°F (19°C) | 3.6" | 0.0 | 0.8 |
| September | 69°F (21°C) | 49°F (9°C) | 59°F (15°C) | 3.5" | 0.4 | 0.3 |
| October | 57°F (14°C) | 39°F (4°C) | 48°F (9°C) | 5.0" | 9.4 | 0.0 |
| November | 46°F (8°C) | 30°F (-1°C) | 38°F (3°C) | 5.1" | 20.1 | 0.0 |
| December | 35°F (2°C) | 19°F (-7°C) | 27°F (-3°C) | 5.9" | 28.5 | 0.0 |
The year, day by day
Summer here tops out rather than builds: the warmest normal high is 78°F around July 28, short of 90°F on every date, while 159 dates carry a normal low at or below freezing, the coldest 8°F near January 25.
The freezing stretch
The normal low stays at or below 32°F into April 15, then returns to freezing around November 9, 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 March 8, when 38% of years recorded at least a hundredth of an inch. The driest is August 25 at 26%. Summed across the calendar, that is about 120 wet dates a year.
The widest day
February 5 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 Jonesboro.
Where Jonesboro Stands Nationally
The normal water year runs well above the national norm at roughly 51 inches.
Days and nights track unusually close together; the widest normal swing, about 22°F, is narrower than most stations record.
Jonesboro earns 2 nationally notable standings (outer quintiles) against 6,860 NOAA 1991–2020 normals stations; only those extremes render.
Monthly Precipitation
Average monthly rainfall
10.5 days with precipitation
9.2 days with precipitation
10.8 days with precipitation
10.3 days with precipitation
11.4 days with precipitation
10.6 days with precipitation
10.2 days with precipitation
8.1 days with precipitation
8.5 days with precipitation
9.2 days with precipitation
9.1 days with precipitation
10.4 days with precipitation
Jonesboro spreads its precipitation across the year
Neither half of the year dominates here: June through August take 21% of the annual total and December through February 27%, with neither reaching the 35% that would mark a distinct wet season. Jonesboro has no dry season to plan around, though it does carry a wide 46.9°F gap between its warmest and coldest month.
The gap between the wettest and driest month still matters: December averages 5.9" and July 3.4". The three wettest months together take 31% 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 Jonesboro, it arrives in quantity
50.8" of precipitation falls across only about 118 wet days here, averaging 0.43 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 118 a year, 32% of all days
- Average depth per wet day
- 0.43 inches
- Most wet days
- May, about 11
- Fewest wet days
- August, about 8
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.
Frost Dates & Growing Season
First Fall Freeze
October 9
50% probability date
Last Spring Freeze
May 3
50% probability date
Growing Season
159 days
Heating & Cooling Degree Days
Annual totals indicate energy demand for heating and cooling
Heating Degree Days
7,788
Higher = more heating needed
Cooling Degree Days
184
Higher = more cooling needed
Warmest Month
July
Coldest Month
January
Nationwide similar cities
Other rankable U.S. places outside ME closest to Jonesboro 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 (44°F here).
- Blair, WI 44°F · 0.0°F off
- Brockway, MT 44°F · 0.0°F off
- Dassel, MN 44°F · 0.0°F off
- De Smet, SD 44°F · 0.0°F off
Closest by annual precipitation
Nearest out-of-state peers by annual precipitation (50.8" here), excluding temperature-peer places.
- Mooringsport, LA 50.8" · 0.0" off
- Lumberton, NC 50.8" · 0.0" off
- Hazlehurst, GA 50.9" · 0.0" off
- Glenmoore, PA 50.8" · 0.0" off
Data-derived climate profile
How Jonesboro's climate pattern fits together
heating led · wet · mid swing
Jonesboro's energy balance leans toward cold weather: 7,788 annual heating degree days against 184 for cooling. Its 46.9°F seasonal range still makes the monthly rows more useful than the annual average alone.
Jonesboro's frost-free season lasts about 159 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 Jonesboro's middle-range seasonal profile. The measured spread is 46.9°F. The annual average is 44°F. Neither the annual mean nor one extreme month represents the full calendar on its own.
Alongside its heating load, Jonesboro carries 50.8 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 Jonesboro'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 Jonesboro, not an official NOAA class or a year-ahead forecast.
Questions about Jonesboro's climate
How much rain does Jonesboro get? ▼
How cold does Jonesboro get in winter? ▼
How much energy does heating and cooling require in Jonesboro? ▼
Data Sources
Data source: NOAA U.S. Climate Normals v1.0.1 (1991-2020). All figures on this page are from Jonesboro's primary station: JONESBORO (USC00174183). 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 Jonesboro; 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 Jonesboro 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.