Indian Mills, NJ 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 Indian Mills's primary NOAA station, INDIAN MILLS 2 W.
The climate verdict for Indian Mills
Water is the standout signal in Indian Mills, New Jersey: 50.4 inches of precipitation in a normal year. Against that wet profile, NOAA records an annual average of 54°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.
- 54°F
- yearly average temperature, NOAA normal
- 49/100
- comfort score, above 18% of station-mapped location scores
- 50.4"
- annual precipitation · 24" snow
- 170 days
- growing season, frost-free days
Indian Mills: NOAA 1991-2020 normals describe a typical year, not a forecast. Method: /methodology.
Normals record plate
Sheet USC00284229 · Indian Mills, NJ 54°F mean · 50.4" precip
TEMP-COOL · RANK-MID · PHOTO-FINISH · PRCP-WET · SWING-MID · COMF-LOW · LOAD-HEAT · STN-1 · BOOK-FULL
- TEMP-COOL 54°F
- RANK-MID #3,911
- PHOTO-FINISH ≈ Martinsburg E W…
- PRCP-WET 50.4"
- SWING-MID 43°F
- COMF-LOW 49/100
- LOAD-HEAT 4,940 HDD
- STN-1 USC00284229
- BOOK-FULL 6/6 fields
Nearest mean-temperature peer: Martinsburg E WV Rgnl, WV (+ 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 NJ station list.
- Indian Mills (this station) 54°F
- Cold Grayson, KY 54°F
- Hot Martinsburg E W…, WV 54°F
- Near Vienna, VA 54°F
- Near Gassaway, WV 54°F
Climate Living Index · Indian Mills
Indian Mills: 54/100 · grade D
Indian Mills publishes 5 of 6 Living Index dimensions (NOAA annual/seasonal normals · NOAA daily multivariate normals); 1 missing weight rescale to 100.
PlainClimate-derived for Indian Mills, not an official NOAA rating. Rankings still use Comfort Score 49/100 (separate formula). Breakpoints and limits.
| Dimension | Station value | Score |
|---|---|---|
| Normal heat + freeze calendar | 117 calendar days | 66/100 · C |
| Annual temperature balance | 54.1°F · 13.4° from 67.5°F | 56/100 · C |
| Precipitation balance | 50.4 in · 15.4 from 35 in | 46/100 · D |
| Snowfall burden | 23.5 inches/year | 45/100 · D |
| Frost-free season | 170 days/year | 42/100 · D |
Indian Mills · 2026-08-04 · NOAA NCEI Climate Normals · method · Comfort Score method.
Indian Mills is a temperate Köppen climate: Cfa
Coldest-month mean 32.7°F and warmest-month mean 75.5°F place this station in temperate, no dry season, hot summer climates (Cfa). Class Cfa is the Peel et al. (2007) label for this station's monthly mean temperature and precipitation normals: temperate, specifically temperate, no dry season, hot summer.
- Köppen code
- Cfa
- Group
- Temperate
- Warmest month
- 75.5°F
- Coldest month
- 32.7°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 Indian Mills sits across the climate record
Three NOAA fields for Indian Mills's primary station, temperature, precipitation, and seasonal swing, are ranked against every station-mapped normal that carries the same field.
- Annual temperature
- 57th percentile warmth
- Mid-pack annual mean versus 6,861 station normals.
- Annual precipitation
- Top 19% wettest
- Indian Mills's annual total ranks in the wetter third of 6,352 measured normals.
- Seasonal temperature swing
- 48th percentile swing
- Typical seasonal amplitude versus 6,861 complete station-years.
How Indian Mills compares across U.S. station-mapped locations
Indian Mills'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
Indian Mills's measured station temperature trend
MethodologyAcross 96 complete annual observations from 1903 to 2021, INDIAN MILLS 2 W warmed at a fitted rate of 0.05°C per decade. The line shows the fitted change relative to its first year, not raw year-to-year temperatures or a forecast.
- Indian Mills primary station fitted change +0.05 °C/decade
Monthly Temperatures
Average daily high and low temperatures by month
| Month | Avg High | Avg Low | Mean | Precip | Snow | Freeze Days | 90°F+ Days |
|---|---|---|---|---|---|---|---|
| January | 42°F (6°C) | 24°F (-5°C) | 33°F (0°C) | 3.7" | 6.0" | 24.6 | 0.0 |
| February | 45°F (7°C) | 24°F (-4°C) | 35°F (2°C) | 3.0" | 8.9" | 22.2 | 0.0 |
| March | 53°F (12°C) | 31°F (-1°C) | 42°F (5°C) | 4.5" | 3.9" | 18.0 | 0.0 |
| April | 65°F (18°C) | 40°F (5°C) | 53°F (12°C) | 3.7" | 0.5" | 6.7 | 0.3 |
| May | 74°F (24°C) | 50°F (10°C) | 62°F (17°C) | 3.8" | 0.0" | 0.8 | 1.9 |
| June | 82°F (28°C) | 59°F (15°C) | 70°F (21°C) | 4.3" | 0.0" | 0.0 | 5.8 |
| July | 87°F (30°C) | 64°F (18°C) | 76°F (24°C) | 5.2" | 0.0" | 0.0 | 11.2 |
| August | 85°F (29°C) | 62°F (17°C) | 74°F (23°C) | 5.3" | 0.0" | 0.0 | 6.8 |
| September | 78°F (26°C) | 55°F (13°C) | 67°F (19°C) | 4.4" | 0.0" | 0.0 | 1.8 |
| October | 67°F (20°C) | 44°F (7°C) | 56°F (13°C) | 4.3" | 0.0" | 3.8 | 0.1 |
| November | 56°F (13°C) | 34°F (1°C) | 45°F (7°C) | 3.5" | 0.3" | 14.3 | 0.0 |
| December | 47°F (8°C) | 28°F (-2°C) | 37°F (3°C) | 4.6" | 3.9" | 21.6 | 0.0 |
The year, day by day
Summer here tops out rather than builds: the warmest normal high is 87°F around July 11, short of 90°F on every date, while 117 dates carry a normal low at or below freezing, the coldest 23°F near January 25.
The freezing stretch
The normal low stays at or below 32°F into March 20, then returns to freezing around November 25, covering 117 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 December 15, when 29% of years recorded at least a hundredth of an inch. The driest is September 4 at 22%. Summed across the calendar, that is about 97 wet dates a year.
The widest day
April 23 carries the biggest normal gap between afternoon and dawn, 26°F between the normal high and the normal low.
Look up any date
Any date's 1991–2020 normal for Indian Mills.
Where Indian Mills Stands Nationally
The normal water year runs well above the national norm at roughly 50 inches.
Indian Mills 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: 6.0"
8.2 days with precipitation
Snow: 8.9"
7.8 days with precipitation
Snow: 3.9"
8.4 days with precipitation
Snow: 0.5"
8.2 days with precipitation
8.8 days with precipitation
8.2 days with precipitation
8.9 days with precipitation
7.8 days with precipitation
7.0 days with precipitation
7.3 days with precipitation
Snow: 0.3"
7.2 days with precipitation
Snow: 3.9"
9.3 days with precipitation
Indian Mills spreads its precipitation across the year
Neither half of the year dominates here: June through August take 30% of the annual total and December through February 22%, with neither reaching the 35% that would mark a distinct wet season. Indian Mills has no dry season to plan around, though it does carry a 42.8°F seasonal spread.
The gap between the wettest and driest month still matters: August averages 5.3" and February 3.0". 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.
When it rains in Indian Mills, it arrives in quantity
50.3" of precipitation falls across only about 97 wet days here, averaging 0.52 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 97 a year, 27% of all days
- Average depth per wet day
- 0.52 inches
- Most wet days
- December, about 9
- Fewest wet days
- September, about 7
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 Indian Mills
Indian Mills averages 23.5 inches of snowfall a year, with February the snowiest month on the normals, spread across roughly 7 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: 23.5 inches of depth.
- Days recording measurable snow: about 7 a year.
- At a rough ten-to-one melt ratio, snow accounts for on the order of 5% 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 15
50% probability date
Last Spring Freeze
April 28
50% probability date
Growing Season
170 days
Heating & Cooling Degree Days
Annual totals indicate energy demand for heating and cooling
Heating Degree Days
4,940
Higher = more heating needed
Cooling Degree Days
989
Higher = more cooling needed
Warmest Month
July
Coldest Month
January
Nationwide similar cities
Other rankable U.S. places outside NJ closest to Indian Mills 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 (54°F here).
- Brunswick, MO 54°F · 0.0°F off
- Casey, IL 54°F · 0.0°F off
- Cole Camp, MO 54°F · 0.0°F off
- Columbus, IN 54°F · 0.0°F off
Closest by annual precipitation
Nearest out-of-state peers by annual precipitation (50.4" here), excluding temperature-peer places.
- Carmel, NY 50.4" · 0.0" off
- Paducah, KY 50.3" · 0.0" off
- Shelby, NC 50.4" · 0.0" off
- Okeechobee, FL 50.3" · 0.1" off
Snow and freeze rhythm
When cold and snow define Indian Mills
heating led · wet · mid swing
Indian Mills's energy balance leans toward cold weather: 4,940 annual heating degree days against 989 for cooling. Its 42.8°F seasonal range still makes the monthly rows more useful than the annual average alone.
Indian Mills'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.
-
1. Indian Mills coldest normal
January
The monthly mean of 33°F (0°C) sits near freezing, so cold nights and above-freezing afternoons share the same month.
-
2. Indian Mills typical freeze period
January through December
The station reports average freezing days from January through December.
-
3. Indian Mills snow peak
February
Indian Mills averages 23.5 inches of snow a year, with February the snowiest month on the normals.
Questions about Indian Mills's climate
How much snow does Indian Mills get? ▼
How cold does Indian Mills get in winter? ▼
How much energy does heating and cooling require in Indian Mills? ▼
Data Sources
Data source: NOAA U.S. Climate Normals v1.0.1 (1991-2020). All figures on this page are from Indian Mills's primary station: INDIAN MILLS 2 W (USC00284229). 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 Indian Mills; 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 Indian Mills 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.