Hartford City, Indiana climate: Normal weather by month, frost dates and records
Hartford City's normal year runs from 19°F January nights to 83°F July afternoons, with 41.7 inches of precipitation and 32 inches of snow a year. (NOAA 1991-2020 normals)
In metric: a yearly mean of 10.7°C, January lows of −7°C, July highs of 28°C, 1,060 mm of precipitation a year.
- NOAA stationHartford City (4 mi ESE)
- Station IDUSC00123777
- Location40.44°N 85.29°W
- Elevation924 ft (282 m)
- Population5,927
On October 23, the normal high in Hartford City is 61°F and the normal low 42°F, and the chance of measurable rain or snow is 31%.
Normals describe a typical year at the station, not a forecast. The National Weather Service forecast for Hartford City.
- Jan 33° 19°
- Feb 37° 21°
- Mar 48° 30°
- Apr 61° 41°
- May 72° 52°
- Jun 80° 61°
- Jul 83° 64°
- Aug 82° 62°
- Sep 76° 55°
- Oct 64° 44°
- Nov 50° 34°
- Dec 38° 25°
Each month: normal high (large) and low, °F. Fill: the month's normal mean, colder blue to hotter red.
What is the weather like in Hartford City each month?
July is the warmest month, with normal highs of 83°F; January the coldest, with normal lows of 19°F. The most precipitation falls in June (4.43 in), the least in February (2.35 in).
| Month | High | Low | Mean | Precip. | Snow | Wet days | 90°F days | Freezing nights | Daylight |
|---|---|---|---|---|---|---|---|---|---|
| January | 33°F | 19°F | 26.0°F | 2.67 | 9.0 | 13 | <1 | 26 | 9 h 30 min |
| February | 37°F | 21°F | 29.2°F | 2.35 | 8.2 | 11 | <1 | 24 | 10 h 40 min |
| March | 48°F | 30°F | 39.0°F | 3.31 | 5.0 | 12 | <1 | 19 | 11 h 50 min |
| April | 61°F | 41°F | 51.0°F | 3.89 | 0.6 | 12 | <1 | 6 | 13 h 10 min |
| May | 72°F | 52°F | 61.9°F | 4.24 | 0.0 | 13 | 1 | <1 | 14 h 20 min |
| June | 80°F | 61°F | 70.9°F | 4.43 | 0.0 | 12 | 3 | <1 | 15 h |
| July | 83°F | 64°F | 73.6°F | 4.20 | 0.0 | 10 | 5 | <1 | 14 h 50 min |
| August | 82°F | 62°F | 71.7°F | 4.33 | 0.0 | 9 | 3 | <1 | 13 h 50 min |
| September | 76°F | 55°F | 65.5°F | 3.48 | 0.0 | 8 | 2 | <1 | 12 h 30 min |
| October | 64°F | 44°F | 54.2°F | 2.89 | 0.2 | 9 | <1 | 3 | 11 h 10 min |
| November | 50°F | 34°F | 41.8°F | 3.28 | 2.0 | 11 | <1 | 15 | 10 h |
| December | 38°F | 25°F | 31.3°F | 2.67 | 7.2 | 12 | <1 | 24 | 9 h 20 min |
| Year (annual) | 60°F | 42°F | 51.3°F | 41.74 | 32.2 | 130 | 13 | 117 |
The same normals in °C and millimetres
| Month | High | Low | Mean | Precip. | Snow |
|---|---|---|---|---|---|
| January | 1°C | −7°C | −3.3°C | 68 mm | 23 cm |
| February | 3°C | −6°C | −1.6°C | 60 mm | 21 cm |
| March | 9°C | −1°C | 3.9°C | 84 mm | 13 cm |
| April | 16°C | 5°C | 10.6°C | 99 mm | 2 cm |
| May | 22°C | 11°C | 16.6°C | 108 mm | 0 cm |
| June | 27°C | 16°C | 21.6°C | 113 mm | 0 cm |
| July | 28°C | 18°C | 23.1°C | 107 mm | 0 cm |
| August | 28°C | 17°C | 22.1°C | 110 mm | 0 cm |
| September | 25°C | 13°C | 18.6°C | 88 mm | 0 cm |
| October | 18°C | 7°C | 12.3°C | 73 mm | 1 cm |
| November | 10°C | 1°C | 5.4°C | 83 mm | 5 cm |
| December | 3°C | −4°C | −0.4°C | 68 mm | 18 cm |
Source: NOAA NCEI 1991-2020 monthly normals, station USC00123777; annual normals. Wet days: 0.01 inch or more; 90°F days and freezing nights: NOAA's day counts. Daylight: sunrise to sunset on the 15th, computed from the latitude.
When is the best weather to visit Hartford City?
Normal highs sit between 65°F and 85°F in May, June, July, August and September. Of those, September has the fewest days with rain (8).
That is a measurement, not a recommendation: it counts the months whose normal afternoon high sits between 65°F and 85°F, where a light layer is enough by day.
Source: NOAA NCEI 1991-2020 monthly normals, station USC00123777.
When is the last frost in Hartford City?
In Hartford City, the last spring frost (32°F) comes after April 22 in half of years and after May 7 in one year in ten; the first autumn frost comes before October 22 in half of years and before October 7 in one year in ten.
Frost-free in half of yearsFrost in 1 to 9 years out of 10Frost most years
- Last spring frost, half of years after
- April 221 year in 10 after May 7; 9 in 10 after April 6
- First autumn frost, half of years before
- October 221 year in 10 before October 7; 9 in 10 before November 3
NOAA puts the median frost-free season at 181 days, and the season without a hard freeze (28°F) at 205 days.
A hard freeze (28°F) comes after April 10 in half of springs and before November 1 in half of autumns.
The USDA's 2023 Plant Hardiness Zone Map puts Hartford City in zone 6a in ZIP code 47348, the nearest ZIP area. By the map's own method, the average of each year's coldest night over 1991-2020, Hartford City's NOAA station is in zone 6a: the coldest night of a typical year reaches −8°F (23 complete years).
Frost dates for every NOAA station in Indiana · Frost dates by ZIP code
Source: NOAA NCEI 1991-2020 annual normals (frost probabilities), station USC00123777; USDA 2023 Plant Hardiness Zone Map, ZIP listings: PRISM Group, Oregon State University, https://prism.oregonstate.edu, accessed October 8, 2026; the station zone: ACIS daily lows, 1991-2020. A 10% date means one year in ten has a frost after it in spring or before it in autumn.
How hot and how cold does it get in Hartford City?
In a normal year in Hartford City, 13 days a year reach 90°F, 117 nights fall to 32°F or colder and 130 days bring measurable precipitation.
- Days at 90°F or more
- 13a normal year
- Days at 100°F or more
- fewer than 1a normal year
- Nights at 32°F or colder
- 117a normal year
- Days that stay below freezing
- 39high of 32°F or less
- Days with 0.01 inch of precipitation
- 130a normal year
- Days with 1 inch of snow or more
- 10a normal year
The highest temperature in this station's record (since 1959) is 104°F, on June 29, 2012; the lowest is −26°F, on January 19, 1994.
The wettest calendar year on that record is 2011, with 48.61 in; the snowiest season is 2002–03, with 61.8 inches.
Source: NOAA NCEI 1991-2020 annual normals, station USC00123777; records: ACIS (NOAA Regional Climate Centers), station USC00123777. Records use complete months only; a month missing more than three days is left out.
How sunny is Hartford City?
Over a year 72% of the sunlight that would reach the ground under clear skies gets through the clouds in the area around Hartford City, 3.9 kWh per square metre a day. August is the sunniest month (81%) and December the cloudiest (57%).
| Month | Share of clear-sky sunshine | Sunshine, kWh/m² a day |
|---|---|---|
| January | 59% | 1.7 |
| February | 64% | 2.6 |
| March | 66% | 3.6 |
| April | 69% | 4.8 |
| May | 71% | 5.5 |
| June | 77% | 6.2 |
| July | 81% | 6.2 |
| August | 81% | 5.5 |
| September | 79% | 4.5 |
| October | 71% | 3.1 |
| November | 67% | 2.1 |
| December | 57% | 1.4 |
Source: NASA POWER solar climatology, 2001-2020 (CERES SYN1deg). Satellite-based, for the 1-degree cell (about 100 km across) around the station, so it describes the area rather than the airport.
How much heating and cooling does Hartford City need?
A normal year in Hartford City brings 5,828 heating degree days, 8% more than the median U.S. place (5,373), and 887 cooling degree days, 2% fewer than the median (908). Seven months need 300 or more heating degree days, a monthly mean of about 55°F or colder. For gardens and crops, NOAA counts 3,290 growing degree days a year above 50°F.
| Month | Heating | Cooling |
|---|---|---|
| January | 1,209 | 0 |
| February | 1,002 | 0 |
| March | 806 | 2 |
| April | 429 | 10 |
| May | 166 | 70 |
| June | 21 | 198 |
| July | 4 | 270 |
| August | 9 | 217 |
| September | 86 | 101 |
| October | 354 | 18 |
| November | 697 | 1 |
| December | 1,045 | 0 |
| Year (annual) | 5,828 | 887 |
Source: NOAA NCEI 1991-2020 monthly normals, station USC00123777. A degree day is one degree of a day's mean temperature below 65°F (heating) or above it (cooling); utilities use them to estimate energy use.
Has Hartford City been warmer than normal lately?
2025 averaged 50.8°F, 0.5°F below the 1991-2020 normal of 51.3°F. 3 of the 5 complete years since 2021 ran warmer than the normal.
| Year | Mean | Against normal | Precip. | Snow |
|---|---|---|---|---|
| 2021 | 52.4°F | +1.1°F | 37.13 | 28.2 |
| 2022 | 50.9°F | −0.4°F | 31.95 | 26.3 |
| 2023 | 52.9°F | +1.6°F | 32.52 | 10.3 |
| 2024 | 53.6°F | +2.3°F | 34.95 | 19.1 |
| 2025 | 50.8°F | −0.5°F | 30.34 | 27.4 |
Over 52 complete years from 1960 to 2025, the station's annual mean temperature rose at a fitted 5.5°F per century (+0.30°C per decade). A fitted rate summarizes the whole record; single years swing well above and below it.
Source: observed years: ACIS, station USC00123777; trend: NOAA GHCN-Monthly v4. A year counts only with all twelve months complete.
How does Hartford City's climate compare?
Hartford City is warmer than 44 of the other 98 places with their own NOAA record in Indiana, and wetter than 37. Across the 7,247 U.S. stations with normals, its annual mean of 51.3°F is warmer than 46%.
In the Köppen classification computed from these normals, Hartford City is Dfa: continental, no dry season, hot summer. What the classes mean.
Places with the most similar year elsewhere
Measured month by month on the normal high, low and precipitation, among places of 20,000 or more people in other states:
Source: NOAA NCEI 1991-2020 normals for every station PlainClimate covers. Similarity: the root-mean-square difference of the 36 monthly figures, precipitation weighted so an inch counts like 6°F.
Which places near Hartford City share this climate record?
9 places have no NOAA station with 1991-2020 normals of their own, and this station is the nearest full record. A place's own climate can differ from these figures, by several degrees where it sits much higher or lower than the station, nearer the coast, or inside a large city's heat; for the larger places the next nearest records are named with their yearly mean, so the spread around them is visible, and places of 50,000 or more have their own page with NOAA's gridded normals.
- Upland, IN3,819 people · 11 mi W
- Dunkirk, IN2,106 people · 6 mi SE
- Montpelier, IN1,502 people · 8 mi N
- Pennville, IN616 people · 8 mi NE
- Matthews, IN485 people · 11 mi W
- Shamrock Lakes, IN216 people · 7 mi W
- Roll, IN164 people · 10 mi NW
- Keystone, IN92 people · 11 mi N
- Millgrove, IN27 people · 2 mi S
Source: Census Bureau 2024 Gazetteer (place centers) and Vintage 2024 population estimates. Distance and direction from the station to each place's center.
Questions about Hartford City's climate
What is the coldest month in Hartford City?
January, with a normal high of 33°F and a normal low of 19°F. The warmest is July (83°F by day, 64°F at night).
Does it snow in Hartford City?
Yes: 32 inches in a normal year, falling on 31 days with 0.1 inch or more, the most in January (9.0 inches).
What is the rainiest month in Hartford City?
June, with 4.43 in of precipitation in a normal year; the driest is February with 2.35 in.
What plant hardiness zone is Hartford City in?
The USDA's 2023 map puts Hartford City in zone 6a in ZIP code 47348, the nearest ZIP area. By the same method at Hartford City's NOAA station, the coldest night of a typical year reaches −8°F (23 years, 1991-2020): zone 6a.
How late can frost come in Hartford City?
In half of years the last 32°F night comes after April 22; in one year in ten it comes after May 7. Waiting until May 7 leaves about a one-in-ten chance of a later frost.
Nearby and next
- Indiana climateThe statewide normals and every place in the state
- Farmland, IN14 miles from this station, 51.2°F a year
- Muncie, IN15 miles from this station, 53.7°F a year
- Portland, IN16 miles from this station, 50.3°F a year
- Marion, IN22 miles from this station, 50.4°F a year
- Compare two placesMonth by month, side by side
Download these normals (CSV) · JSON · How these figures are made