Newton, Mississippi climate: Normal weather by month, frost dates and records
Newton's normal year runs from 34°F January nights to 90°F July afternoons, with 58.2 inches of precipitation a year. (NOAA 1991-2020 normals)
In metric: a yearly mean of 17.3°C, January lows of 1°C, July highs of 32°C, 1,479 mm of precipitation a year.
- NOAA stationNewton (5 mi ENE)
- Station IDUSW00063831
- Location32.34°N 89.07°W
- Elevation374 ft (114 m)
- Population3,079
On October 23, the normal high in Newton is 75°F and the normal low 48°F, and the chance of measurable rain or snow is 23%.
Normals describe a typical year at the station, not a forecast. The National Weather Service forecast for Newton.
- Jan 57° 34°
- Feb 61° 38°
- Mar 69° 44°
- Apr 75° 50°
- May 83° 59°
- Jun 88° 66°
- Jul 90° 69°
- Aug 90° 69°
- Sep 86° 62°
- Oct 77° 51°
- Nov 66° 41°
- Dec 59° 36°
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 Newton each month?
July is the warmest month, with normal highs of 90°F; January the coldest, with normal lows of 34°F. The most precipitation falls in April (6.15 in), the least in September (3.23 in).
| Month | High | Low | Mean | Precip. | Wet days | 90°F days | Freezing nights | Daylight |
|---|---|---|---|---|---|---|---|---|
| January | 57°F | 34°F | 45.4°F | 5.49 | 9 | <1 | 16 | 10 h 10 min |
| February | 61°F | 38°F | 49.3°F | 5.53 | 11 | <1 | 11 | 11 h |
| March | 69°F | 44°F | 56.1°F | 5.62 | 10 | <1 | 5 | 12 h |
| April | 75°F | 50°F | 62.5°F | 6.15 | 9 | <1 | <1 | 13 h |
| May | 83°F | 59°F | 70.5°F | 4.11 | 9 | 2 | <1 | 13 h 50 min |
| June | 88°F | 66°F | 77.1°F | 4.65 | 10 | 13 | <1 | 14 h 20 min |
| July | 90°F | 69°F | 79.5°F | 5.18 | 12 | 17 | <1 | 14 h 10 min |
| August | 90°F | 69°F | 79.1°F | 4.62 | 13 | 17 | <1 | 13 h 20 min |
| September | 86°F | 62°F | 74.2°F | 3.23 | 6 | 9 | <1 | 12 h 20 min |
| October | 77°F | 51°F | 64.1°F | 3.83 | 7 | 1 | 1 | 11 h 30 min |
| November | 66°F | 41°F | 53.3°F | 4.38 | 8 | <1 | 8 | 10 h 30 min |
| December | 59°F | 36°F | 47.5°F | 5.43 | 11 | <1 | 14 | 10 h |
| Year (annual) | 75°F | 52°F | 63.2°F | 58.22 | 115 | 60 | 56 |
The same normals in °C and millimetres
| Month | High | Low | Mean | Precip. |
|---|---|---|---|---|
| January | 14°C | 1°C | 7.4°C | 139 mm |
| February | 16°C | 3°C | 9.6°C | 140 mm |
| March | 20°C | 6°C | 13.4°C | 143 mm |
| April | 24°C | 10°C | 16.9°C | 156 mm |
| May | 28°C | 15°C | 21.4°C | 104 mm |
| June | 31°C | 19°C | 25.1°C | 118 mm |
| July | 32°C | 21°C | 26.4°C | 132 mm |
| August | 32°C | 20°C | 26.2°C | 117 mm |
| September | 30°C | 17°C | 23.4°C | 82 mm |
| October | 25°C | 11°C | 17.8°C | 97 mm |
| November | 19°C | 5°C | 11.8°C | 111 mm |
| December | 15°C | 2°C | 8.6°C | 138 mm |
NOAA publishes no 1991-2020 snowfall normal for this station. Newton's own co-op station Newton Experiment Station does: 0 inches of snow in a normal year (see the other stations below).
Source: NOAA NCEI 1991-2020 monthly normals, station USW00063831; 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 Newton?
Normal highs sit between 65°F and 85°F in March, April, May, October and November. Of those, October has the fewest days with rain (7).
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 USW00063831.
When is the last frost in Newton?
In Newton, the last spring frost (32°F) comes after March 24 in half of years and after April 10 in one year in ten; the first autumn frost comes before November 5 in half of years and before October 23 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
- March 241 year in 10 after April 10; 9 in 10 after March 1
- First autumn frost, half of years before
- November 51 year in 10 before October 23; 9 in 10 before November 25
NOAA puts the median frost-free season at 228 days, and the season without a hard freeze (28°F) at 255 days.
A hard freeze (28°F) comes after March 9 in half of springs and before November 18 in half of autumns.
The USDA's 2023 Plant Hardiness Zone Map puts Newton in zone 8b in ZIP code 39345, the nearest ZIP area. By the map's own method, the average of each year's coldest night over 1991-2020, Newton's NOAA station is in zone 8a: the coldest night of a typical year reaches 15°F (16 complete years); the map interpolates between stations and terrain, so the station and the ZIP area can differ by half a zone.
Frost dates for every NOAA station in Mississippi · Frost dates by ZIP code
Source: NOAA NCEI 1991-2020 annual normals (frost probabilities), station USW00063831; 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 Newton?
In a normal year in Newton, 60 days a year reach 90°F, 56 nights fall to 32°F or colder and 115 days bring measurable precipitation.
- Days at 90°F or more
- 60a normal year
- Days at 100°F or more
- fewer than 1a normal year
- Nights at 32°F or colder
- 56a normal year
- Days that stay below freezing
- 1high of 32°F or less
- Days with 0.01 inch of precipitation
- 115a normal year
Source: NOAA NCEI 1991-2020 annual normals, station USW00063831.
How sunny is Newton?
Over a year 77% of the sunlight that would reach the ground under clear skies gets through the clouds in the area around Newton, 4.6 kWh per square metre a day. June is the sunniest month (82%) and February the cloudiest (67%).
| Month | Share of clear-sky sunshine | Sunshine, kWh/m² a day |
|---|---|---|
| January | 71% | 2.7 |
| February | 67% | 3.3 |
| March | 72% | 4.4 |
| April | 77% | 5.5 |
| May | 79% | 6.1 |
| June | 82% | 6.4 |
| July | 80% | 6.1 |
| August | 81% | 5.7 |
| September | 82% | 5.1 |
| October | 80% | 4.1 |
| November | 78% | 3.2 |
| December | 69% | 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 Newton need?
A normal year in Newton brings 2,532 heating degree days, 53% fewer than the median U.S. place (5,373), and 1,910 cooling degree days, 2.1 times the median (908). Four months need 300 or more heating degree days, a monthly mean of about 55°F or colder. For gardens and crops, NOAA counts 5,469 growing degree days a year above 50°F.
| Month | Heating | Cooling |
|---|---|---|
| January | 610 | 2 |
| February | 445 | 7 |
| March | 293 | 19 |
| April | 128 | 54 |
| May | 22 | 194 |
| June | 0 | 361 |
| July | 0 | 449 |
| August | 0 | 437 |
| September | 5 | 280 |
| October | 116 | 88 |
| November | 365 | 12 |
| December | 549 | 6 |
| Year (annual) | 2,532 | 1,910 |
Source: NOAA NCEI 1991-2020 monthly normals, station USW00063831. 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 Newton been warmer than normal lately?
2025 averaged 64.5°F, 1.3°F above the 1991-2020 normal of 63.2°F. 4 of the 4 complete years since 2022 ran warmer than the normal.
| Year | Mean | Against normal | Precip. |
|---|---|---|---|
| 2022 | 63.5°F | +0.3°F | 58.94 |
| 2023 | 65.3°F | +2.1°F | 50.05 |
| 2024 | 65.1°F | +1.9°F | 65.21 |
| 2025 | 64.5°F | +1.3°F | 52.52 |
Source: observed years: ACIS, station USW00063831. A year counts only with all twelve months complete.
How does Newton's climate compare?
Newton is warmer than 29 of the other 80 places with their own NOAA record in Mississippi, and wetter than 31. Across the 7,247 U.S. stations with normals, its annual mean of 63.2°F is warmer than 83%.
In the Köppen classification computed from these normals, Newton is Cfa: temperate, 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 Newton share this climate record?
4 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.
- Decatur, MS1,886 people · 7 mi N
- Hickory, MS405 people · 3 mi SE
- Chunky, MS268 people · 8 mi E
- Montrose, MS100 people · 18 mi SW
Source: Census Bureau 2024 Gazetteer (place centers) and Vintage 2024 population estimates. Distance and direction from the station to each place's center.
What do Newton's other NOAA stations record?
One more NOAA station keeps 1991-2020 normals in or near Newton. This page uses Newton (5 mi ENE); the other differs by site and elevation:
| Station | From this station | Elevation | Year | Jan low | Jul high | Precip. | Snow | Last frost |
|---|---|---|---|---|---|---|---|---|
| Newton Experiment Station USC00226308 | 1 mi W | 349 ft | 64.1°F | 33°F | 93°F | 58.5 | 0 | March 25 |
Source: NOAA NCEI 1991-2020 normals for each station. Last frost: the median last spring date of 32°F.
Questions about Newton's climate
What is the coldest month in Newton?
January, with a normal high of 57°F and a normal low of 34°F. The warmest is July (90°F by day, 69°F at night).
Does it snow in Newton?
Rarely. NOAA publishes no 1991-2020 snowfall normal for Newton's NOAA station; Newton's own co-op station Newton Experiment Station records 0 inches of snow in a normal year.
What is the rainiest month in Newton?
April, with 6.15 in of precipitation in a normal year; the driest is September with 3.23 in.
What plant hardiness zone is Newton in?
The USDA's 2023 map puts Newton in zone 8b in ZIP code 39345, the nearest ZIP area. By the same method at Newton's NOAA station, the coldest night of a typical year reaches 15°F (16 years, 1991-2020): zone 8a.
How late can frost come in Newton?
In half of years the last 32°F night comes after March 24; in one year in ten it comes after April 10. Waiting until April 10 leaves about a one-in-ten chance of a later frost.
Nearby and next
- Mississippi climateThe statewide normals and every place in the state
- Meridian, MS19 miles from this station, 65.9°F a year
- Forest, MS21 miles from this station, 63.3°F a year
- Quitman, MS27 miles from this station, 64.3°F a year
- P Harrison Archusa, MS30 miles from this station, 65.0°F a year
- Compare two placesMonth by month, side by side
Download these normals (CSV) · JSON · How these figures are made