New Harmony, Utah climate: Normal weather by month, frost dates and records
New Harmony's normal year runs from 21°F December nights to 90°F July afternoons, with 17.6 inches of precipitation and 38 inches of snow a year. (NOAA 1991-2020 normals)
In metric: a yearly mean of 10.9°C, December lows of −6°C, July highs of 32°C, 446 mm of precipitation a year.
- NOAA stationNew Harmony
- Station IDUSC00426181
- Location37.46°N 113.29°W
- Elevation5,167 ft (1,575 m)
- Population248
On October 23, the normal high in New Harmony is 65°F and the normal low 35°F, and the chance of measurable rain or snow is 14%.
Normals describe a typical year at the station, not a forecast. The National Weather Service forecast for New Harmony.
- Jan 45° 21°
- Feb 48° 24°
- Mar 56° 29°
- Apr 63° 34°
- May 73° 42°
- Jun 84° 50°
- Jul 90° 58°
- Aug 88° 56°
- Sep 81° 48°
- Oct 68° 37°
- Nov 55° 27°
- Dec 44° 21°
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 New Harmony each month?
July is the warmest month, with normal highs of 90°F; December the coldest, with normal lows of 21°F. The most precipitation falls in February (2.54 in), the least in June (0.43 in).
| Month | High | Low | Mean | Precip. | Snow | Wet days | 90°F days | Freezing nights | Daylight |
|---|---|---|---|---|---|---|---|---|---|
| January | 45°F | 21°F | 32.9°F | 2.01 | 10.9 | 6 | <1 | 29 | 9 h 50 min |
| February | 48°F | 24°F | 35.9°F | 2.54 | 11.7 | 7 | <1 | 25 | 10 h 50 min |
| March | 56°F | 29°F | 42.5°F | 1.86 | 3.8 | 6 | <1 | 20 | 11 h 50 min |
| April | 63°F | 34°F | 48.2°F | 1.03 | 2.1 | 5 | <1 | 12 | 13 h 10 min |
| May | 73°F | 42°F | 57.2°F | 0.94 | 0.0 | 5 | 1 | 3 | 14 h 10 min |
| June | 84°F | 50°F | 66.8°F | 0.43 | 0.0 | 2 | 7 | <1 | 14 h 40 min |
| July | 90°F | 58°F | 73.7°F | 1.00 | 0.0 | 5 | 16 | <1 | 14 h 30 min |
| August | 88°F | 56°F | 71.9°F | 1.79 | 0.0 | 6 | 11 | <1 | 13 h 40 min |
| September | 81°F | 48°F | 64.2°F | 1.23 | 0.0 | 5 | 2 | <1 | 12 h 30 min |
| October | 68°F | 37°F | 52.6°F | 1.84 | 0.3 | 4 | <1 | 8 | 11 h 20 min |
| November | 55°F | 27°F | 41.0°F | 1.28 | 3.5 | 4 | <1 | 22 | 10 h 10 min |
| December | 44°F | 21°F | 32.2°F | 1.60 | 5.8 | 5 | <1 | 29 | 9 h 40 min |
| Year (annual) | 66°F | 37°F | 51.6°F | 17.55 | 38.1 | 60 | 36 | 148 |
The same normals in °C and millimetres
| Month | High | Low | Mean | Precip. | Snow |
|---|---|---|---|---|---|
| January | 7°C | −6°C | 0.5°C | 51 mm | 28 cm |
| February | 9°C | −5°C | 2.2°C | 65 mm | 30 cm |
| March | 13°C | −1°C | 5.8°C | 47 mm | 10 cm |
| April | 17°C | 1°C | 9.0°C | 26 mm | 5 cm |
| May | 23°C | 5°C | 14.0°C | 24 mm | 0 cm |
| June | 29°C | 10°C | 19.3°C | 11 mm | 0 cm |
| July | 32°C | 14°C | 23.2°C | 25 mm | 0 cm |
| August | 31°C | 13°C | 22.2°C | 45 mm | 0 cm |
| September | 27°C | 9°C | 17.9°C | 31 mm | 0 cm |
| October | 20°C | 3°C | 11.4°C | 47 mm | 1 cm |
| November | 13°C | −3°C | 5.0°C | 33 mm | 9 cm |
| December | 7°C | −6°C | 0.1°C | 41 mm | 15 cm |
Source: NOAA NCEI 1991-2020 monthly normals, station USC00426181; 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 New Harmony?
Normal highs sit between 65°F and 85°F in May, June, September and October. Of those, June has the fewest days with rain (2).
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 USC00426181.
When is the last frost in New Harmony?
In New Harmony, the last spring frost (32°F) comes after May 9 in half of years and after May 29 in one year in ten; the first autumn frost comes before October 11 in half of years and before September 27 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
- May 91 year in 10 after May 29; 9 in 10 after April 23
- First autumn frost, half of years before
- October 111 year in 10 before September 27; 9 in 10 before October 25
NOAA puts the median frost-free season at 155 days, and the season without a hard freeze (28°F) at 181 days.
A hard freeze (28°F) comes after April 24 in half of springs and before October 22 in half of autumns.
The USDA's 2023 Plant Hardiness Zone Map puts New Harmony in zone 7a in ZIP code 84757, the nearest ZIP area. By the map's own method, the average of each year's coldest night over 1991-2020, New Harmony's NOAA station is in zone 7a: the coldest night of a typical year reaches 4°F (15 complete years).
Frost dates for every NOAA station in Utah · Frost dates by ZIP code
Source: NOAA NCEI 1991-2020 annual normals (frost probabilities), station USC00426181; 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 New Harmony?
In a normal year in New Harmony, 36 days a year reach 90°F (1 of them 100°F or more), 148 nights fall to 32°F or colder and 60 days bring measurable precipitation.
- Days at 90°F or more
- 36a normal year
- Days at 100°F or more
- 1a normal year
- Nights at 32°F or colder
- 148a normal year
- Days that stay below freezing
- 9high of 32°F or less
- Days with 0.01 inch of precipitation
- 60a normal year
- Days with 1 inch of snow or more
- 11a normal year
The highest temperature in this station's record (since 1952) is 104°F, on July 5, 1985; the lowest is −20°F, on February 7, 1989.
The wettest calendar year on that record is 1978, with 36.66 in; the snowiest season is 1948–49, with 124.3 inches.
Source: NOAA NCEI 1991-2020 annual normals, station USC00426181; records: ACIS (NOAA Regional Climate Centers), station USC00426181. Records use complete months only; a month missing more than three days is left out.
How sunny is New Harmony?
Over a year 87% of the sunlight that would reach the ground under clear skies gets through the clouds in the area around New Harmony, 5.4 kWh per square metre a day. June is the sunniest month (93%) and December the cloudiest (76%).
| Month | Share of clear-sky sunshine | Sunshine, kWh/m² a day |
|---|---|---|
| January | 79% | 2.8 |
| February | 78% | 3.7 |
| March | 82% | 5.2 |
| April | 85% | 6.5 |
| May | 88% | 7.6 |
| June | 93% | 8.4 |
| July | 88% | 7.5 |
| August | 90% | 7.0 |
| September | 91% | 6.0 |
| October | 88% | 4.5 |
| November | 84% | 3.2 |
| December | 76% | 2.4 |
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 New Harmony need?
A normal year in New Harmony brings 5,536 heating degree days, 3% more than the median U.S. place (5,373), and 683 cooling degree days, 25% 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 2,837 growing degree days a year above 50°F.
| Month | Heating | Cooling |
|---|---|---|
| January | 994 | 0 |
| February | 816 | 0 |
| March | 696 | 0 |
| April | 504 | 0 |
| May | 257 | 17 |
| June | 59 | 115 |
| July | 2 | 273 |
| August | 4 | 217 |
| September | 84 | 61 |
| October | 387 | 2 |
| November | 719 | 0 |
| December | 1,017 | 0 |
| Year (annual) | 5,536 | 683 |
Source: NOAA NCEI 1991-2020 monthly normals, station USC00426181. 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 New Harmony been warmer than normal lately?
2025 averaged 54.2°F, 2.6°F above the 1991-2020 normal of 51.6°F. 3 of the 4 complete years since 2022 ran warmer than the normal.
| Year | Mean | Against normal | Precip. | Snow |
|---|---|---|---|---|
| 2022 | 52.5°F | +0.9°F | 11.12 | 11.2 |
| 2023 | 51.0°F | −0.6°F | 24.30 | 43.2 |
| 2024 | 53.9°F | +2.3°F | 10.05 | – |
| 2025 | 54.2°F | +2.6°F | 17.97 | 8.8 |
Over 49 complete years from 1956 to 2025, the station's annual mean temperature rose at a fitted 5.3°F per century (+0.29°C per decade). A fitted rate summarizes the whole record; single years swing well above and below it.
Source: observed years: ACIS, station USC00426181; trend: NOAA GHCN-Monthly v4. A year counts only with all twelve months complete.
How does New Harmony's climate compare?
New Harmony is warmer than 68 of the other 96 places with their own NOAA record in Utah, and wetter than 76. Across the 7,247 U.S. stations with normals, its annual mean of 51.6°F is warmer than 48%.
In the Köppen classification computed from these normals, New Harmony is Csa: temperate, dry-summer, 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 New Harmony share this climate record?
Kanarraville has no NOAA station with 1991-2020 normals of its 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.
- Kanarraville, UT495 people · 8 mi NE
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 New Harmony's climate
What is the coldest month in New Harmony?
December, with a normal high of 44°F and a normal low of 21°F. The warmest is July (90°F by day, 58°F at night).
Does it snow in New Harmony?
Yes: 38 inches in a normal year, falling on 14 days with 0.1 inch or more, the most in February (11.7 inches).
What is the rainiest month in New Harmony?
February, with 2.54 in of precipitation in a normal year; the driest is June with 0.43 in.
What plant hardiness zone is New Harmony in?
The USDA's 2023 map puts New Harmony in zone 7a in ZIP code 84757, the nearest ZIP area. By the same method at New Harmony's NOAA station, the coldest night of a typical year reaches 4°F (15 years, 1991-2020): zone 7a.
How late can frost come in New Harmony?
In half of years the last 32°F night comes after May 9; in one year in ten it comes after May 29. Waiting until May 29 leaves about a one-in-ten chance of a later frost.
Nearby and next
- Utah climateThe statewide normals and every place in the state
- La Verkin, UT18 miles from this station, 60.8°F a year
- Cedar City, UT20 miles from this station, 50.3°F a year
- Veyo, UT22 miles from this station, 56.6°F a year
- Zion National Park, UT24 miles from this station, 62.0°F a year
- Compare two placesMonth by month, side by side
Download these normals (CSV) · JSON · How these figures are made