JT Myers Locks & Dam, IN 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 JT Myers Locks & Dam's primary NOAA station, JT MYERS LOCKS & DAM.
The climate verdict for JT Myers Locks & Dam
Water is the standout signal in JT Myers Locks & Dam, Indiana: 48.2 inches of precipitation in a normal year. Against that wet profile, NOAA records an annual average of 57°F. It scores 78/100 for climate comfort (good), putting it in the top third of station-mapped location scores and exceeding 72% of them.
- 57°F
- average temperature, NOAA 1991-2020 normal
- 78/100
- comfort score, above 72% of station-mapped location scores
- 48.2"
- annual precipitation · 8" snow
- 209 days
- frost-free days per growing season
JT Myers Locks & Dam: NOAA 1991-2020 normals describe a typical year, not a forecast. Method: /methodology.
Normals record plate
Sheet USC00128967 · JT Myers Locks & Dam, IN 57°F mean · 48.2" precip
TEMP-MILD · RANK-UPPER · PHOTO-FINISH · PRCP-MID · SWING-MID · COMF-TOP · LOAD-HEAT · STN-1 · BOOK-FULL
- TEMP-MILD 57°F
- RANK-UPPER #4,528
- PHOTO-FINISH ≈ Wappapello Dam
- PRCP-MID 48.2"
- SWING-MID 44°F
- COMF-TOP 78/100
- LOAD-HEAT 4,374 HDD
- STN-1 USC00128967
- BOOK-FULL 6/6 fields
Nearest mean-temperature peer: Wappapello Dam, MO (+ 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 IN station list.
- JT Myers Locks… (this station) 57°F
- Hot Diamond, MO 57°F
- Near Wappapello Dam, MO 57°F
- Near New York Laguar…, NY 57°F
- Near Dalhart, TX 57°F
Climate Living Index · JT Myers Locks & Dam
JT Myers Locks & Dam: 68/100 · grade C
JT Myers Locks & Dam publishes 5 of 6 Living Index dimensions (NOAA annual/seasonal normals · NOAA daily multivariate normals); 1 missing weight rescale to 100.
PlainClimate-derived for JT Myers Locks & Dam, not an official NOAA rating. Rankings still use Comfort Score 78/100 (separate formula). Breakpoints and limits.
| Dimension | Station value | Score |
|---|---|---|
| Normal heat + freeze calendar | 94 calendar days | 78/100 · B |
| Frost-free season | 209 days/year | 71/100 · B |
| Snowfall burden | 7.5 inches/year | 67/100 · C |
| Annual temperature balance | 56.8°F · 10.7° from 67.5°F | 66/100 · C |
| Precipitation balance | 48.2 in · 13.2 from 35 in | 54/100 · D |
JT Myers Locks & Dam · 2026-08-04 · NOAA NCEI Climate Normals · method · Comfort Score method.
JT Myers Locks & Dam is a temperate Köppen climate: Cfa
Coldest-month mean 33.8°F and warmest-month mean 78.0°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
- 78.0°F
- Coldest month
- 33.8°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 JT Myers Locks & Dam sits across the climate record
Three NOAA fields for JT Myers Locks & Dam's primary station, temperature, precipitation, and seasonal swing, are ranked against every station-mapped normal that carries the same field.
- Annual temperature
- 66th percentile warmth
- Mid-pack annual mean versus 6,861 station normals.
- Annual precipitation
- Top 23% wettest
- JT Myers Locks & Dam's annual total ranks in the wetter third of 6,352 measured normals.
- Seasonal temperature swing
- 54th percentile swing
- Typical seasonal amplitude versus 6,861 complete station-years.
How JT Myers Locks & Dam compares across U.S. station-mapped locations
JT Myers Locks & Dam's comfort score vs. all station-mapped locations
PlainClimate composite comfort index (1–100), NOAA 1991–2020 normals
78 Top 28% score exceeds 72% 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%). Below this entry.
- 70–80: 650 station-mapped locations (11%). This entry sits in this band.
- 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 | 42°F (6°C) | 26°F (-4°C) | 34°F (1°C) | 3.6" | 2.1" | 21.9 | 0.0 |
| February | 47°F (8°C) | 28°F (-2°C) | 37°F (3°C) | 3.5" | 1.7" | 19.5 | 0.0 |
| March | 56°F (14°C) | 37°F (3°C) | 46°F (8°C) | 4.5" | 0.7" | 9.0 | 0.0 |
| April | 68°F (20°C) | 46°F (8°C) | 57°F (14°C) | 5.4" | 0.0" | 1.1 | 0.1 |
| May | 77°F (25°C) | 56°F (13°C) | 66°F (19°C) | 5.0" | 0.0" | 0.1 | 1.5 |
| June | 85°F (30°C) | 64°F (18°C) | 75°F (24°C) | 4.8" | 0.0" | 0.0 | 9.4 |
| July | 88°F (31°C) | 68°F (20°C) | 78°F (26°C) | 3.6" | 0.0" | 0.0 | 15.1 |
| August | 88°F (31°C) | 66°F (19°C) | 77°F (25°C) | 3.1" | 0.0" | 0.0 | 10.8 |
| September | 81°F (27°C) | 59°F (15°C) | 70°F (21°C) | 3.4" | 0.0" | 0.0 | 6.0 |
| October | 70°F (21°C) | 47°F (9°C) | 59°F (15°C) | 3.3" | 0.0" | 0.5 | 0.6 |
| November | 56°F (13°C) | 36°F (2°C) | 46°F (8°C) | 4.1" | 0.0" | 10.0 | 0.0 |
| December | 45°F (7°C) | 29°F (-2°C) | 37°F (3°C) | 4.0" | 3.0" | 18.0 | 0.0 |
The year, day by day
Summer here tops out rather than builds: the warmest normal high is 89°F around July 24, short of 90°F on every date, while 94 dates carry a normal low at or below freezing, the coldest 25°F near January 19.
The freezing stretch
The normal low stays at or below 32°F into March 2, then returns to freezing around November 30, covering 94 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 May 4, when 37% of years recorded at least a hundredth of an inch. The driest is August 29 at 20%. Summed across the calendar, that is about 107 wet dates a year.
The widest day
September 29 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 JT Myers Locks & Dam.
Where JT Myers Locks & Dam Stands Nationally
Days and nights track unusually close together; the widest normal swing, about 23°F, is narrower than most stations record.
JT Myers Locks & Dam 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: 2.1"
9.3 days with precipitation
Snow: 1.7"
8.9 days with precipitation
Snow: 0.7"
10.6 days with precipitation
10.4 days with precipitation
11.0 days with precipitation
9.3 days with precipitation
8.3 days with precipitation
6.4 days with precipitation
6.3 days with precipitation
7.2 days with precipitation
8.7 days with precipitation
Snow: 3.0"
10.2 days with precipitation
JT Myers Locks & Dam 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. JT Myers Locks & Dam has no dry season to plan around, though it does carry a 44.2°F seasonal spread.
The gap between the wettest and driest month still matters: April averages 5.4" and August 3.1". 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 JT Myers Locks & Dam, it arrives in quantity
48.2" of precipitation falls across only about 107 wet days here, averaging 0.45 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 107 a year, 29% of all days
- Average depth per wet day
- 0.45 inches
- Most wet days
- May, about 11
- Fewest wet days
- September, about 6
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.
Snow reaches JT Myers Locks & Dam, but rarely amounts to much
The normals record 7.5 inches of snow a year here, most likely in December. That is a real but marginal amount: enough that snow is part of the local record, not enough to define the winter.
A figure in this range usually reflects a handful of events that melt quickly rather than a season of accumulation; about 3 days a year record any measurable snow at all.
NOAA 1991-2020 normals. An average across thirty years can smooth away a single heavy winter, so a small annual figure does not mean a significant snowfall is impossible.
Frost Dates & Growing Season
First Fall Freeze
October 31
50% probability date
Last Spring Freeze
April 5
50% probability date
Growing Season
209 days
Heating & Cooling Degree Days
Annual totals indicate energy demand for heating and cooling
Heating Degree Days
4,374
Higher = more heating needed
Cooling Degree Days
1,437
Higher = more cooling needed
Warmest Month
July
Coldest Month
January
Nationwide similar cities
Other rankable U.S. places outside IN closest to JT Myers Locks & Dam 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 (57°F here).
- Advance, MO 57°F · 0.0°F off
- Andrews, NC 57°F · 0.0°F off
- Bardstown, KY 57°F · 0.0°F off
- Byrdstown, TN 57°F · 0.0°F off
Closest by annual precipitation
Nearest out-of-state peers by annual precipitation (48.2" here), excluding temperature-peer places.
- Charleston, WV 48.2" · 0.0" off
- Springboro, PA 48.2" · 0.0" off
- Tifton, GA 48.2" · 0.0" off
- Milledgeville, GA 48.2" · 0.0" off
Data-derived climate profile
How JT Myers Locks & Dam's climate pattern fits together
heating led · wet · mid swing
JT Myers Locks & Dam's energy balance leans toward cold weather: 4,374 annual heating degree days against 1,437 for cooling. Its 44.2°F seasonal range still makes the monthly rows more useful than the annual average alone.
JT Myers Locks & Dam's frost-free season lasts about 209 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 JT Myers Locks & Dam's middle-range seasonal profile. The measured spread is 44.2°F. The annual average is 57°F. Neither the annual mean nor one extreme month represents the full calendar on its own.
Alongside its heating load, JT Myers Locks & Dam carries 48.2 inches of precipitation in a normal year, inside PlainClimate's wet range. Annual snowfall totals 7.5 inches. 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 JT Myers Locks & Dam'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 JT Myers Locks & Dam, not an official NOAA class or a year-ahead forecast.
Questions about JT Myers Locks & Dam's climate
How much rain does JT Myers Locks & Dam get? ▼
How many days above 90°F does JT Myers Locks & Dam get? ▼
How much energy does heating and cooling require in JT Myers Locks & Dam? ▼
Data Sources
Data source: NOAA U.S. Climate Normals v1.0.1 (1991-2020). All figures on this page are from JT Myers Locks & Dam's primary station: JT MYERS LOCKS & DAM (USC00128967). 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 JT Myers Locks & Dam; 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 JT Myers Locks & Dam 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.