Portageville, Missouri climate: Normal weather by month, frost dates and records
Portageville's normal year runs from 28°F January nights to 88°F July afternoons, with 48.8 inches of precipitation and 7 inches of snow a year. (NOAA 1991-2020 normals)
In metric: a yearly mean of 14.8°C, January lows of −2°C, July highs of 31°C, 1,240 mm of precipitation a year.
- NOAA stationPortageville
- Station IDUSC00236804
- Location36.41°N 89.70°W
- Elevation280 ft (85 m)
- Population2,723
On October 23, the normal high in Portageville is 68°F and the normal low 47°F, and the chance of measurable rain or snow is 29%.
Normals describe a typical year at the station, not a forecast. The National Weather Service forecast for Portageville.
- Jan 43° 28°
- Feb 48° 31°
- Mar 57° 40°
- Apr 68° 49°
- May 78° 60°
- Jun 86° 68°
- Jul 88° 71°
- Aug 87° 69°
- Sep 81° 61°
- Oct 71° 50°
- Nov 57° 40°
- Dec 47° 32°
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 Portageville each month?
July is the warmest month, with normal highs of 88°F; January the coldest, with normal lows of 28°F. The most precipitation falls in May (5.51 in), the least in August (2.64 in).
| Month | High | Low | Mean | Precip. | Snow | Wet days | 90°F days | Freezing nights | Daylight |
|---|---|---|---|---|---|---|---|---|---|
| January | 43°F | 28°F | 35.3°F | 3.45 | 2.4 | 10 | <1 | 22 | 10 h |
| February | 48°F | 31°F | 39.5°F | 3.75 | 2.2 | 9 | <1 | 16 | 10 h 50 min |
| March | 57°F | 40°F | 48.3°F | 4.50 | 0.4 | 11 | <1 | 7 | 11 h 50 min |
| April | 68°F | 49°F | 58.6°F | 5.39 | 0.0 | 11 | <1 | 1 | 13 h 10 min |
| May | 78°F | 60°F | 68.7°F | 5.51 | 0.0 | 12 | 2 | <1 | 14 h |
| June | 86°F | 68°F | 77.0°F | 3.73 | 0.0 | 9 | 10 | <1 | 14 h 40 min |
| July | 88°F | 71°F | 79.7°F | 3.71 | 0.0 | 8 | 16 | <1 | 14 h 30 min |
| August | 87°F | 69°F | 77.8°F | 2.64 | 0.0 | 7 | 13 | <1 | 13 h 40 min |
| September | 81°F | 61°F | 71.1°F | 3.43 | 0.0 | 7 | 4 | <1 | 12 h 30 min |
| October | 71°F | 50°F | 60.2°F | 3.96 | 0.1 | 8 | <1 | 1 | 11 h 20 min |
| November | 57°F | 40°F | 48.4°F | 4.29 | 0.2 | 10 | <1 | 6 | 10 h 20 min |
| December | 47°F | 32°F | 39.1°F | 4.45 | 1.3 | 10 | <1 | 18 | 9 h 40 min |
| Year (annual) | 67°F | 50°F | 58.7°F | 48.81 | 6.6 | 110 | 45 | 71 |
The same normals in °C and millimetres
| Month | High | Low | Mean | Precip. | Snow |
|---|---|---|---|---|---|
| January | 6°C | −2°C | 1.8°C | 88 mm | 6 cm |
| February | 9°C | 0°C | 4.2°C | 95 mm | 6 cm |
| March | 14°C | 4°C | 9.1°C | 114 mm | 1 cm |
| April | 20°C | 10°C | 14.8°C | 137 mm | 0 cm |
| May | 25°C | 16°C | 20.4°C | 140 mm | 0 cm |
| June | 30°C | 20°C | 25.0°C | 95 mm | 0 cm |
| July | 31°C | 22°C | 26.5°C | 94 mm | 0 cm |
| August | 30°C | 20°C | 25.4°C | 67 mm | 0 cm |
| September | 27°C | 16°C | 21.7°C | 87 mm | 0 cm |
| October | 22°C | 10°C | 15.7°C | 101 mm | 0 cm |
| November | 14°C | 4°C | 9.1°C | 109 mm | 1 cm |
| December | 8°C | 0°C | 3.9°C | 113 mm | 3 cm |
Source: NOAA NCEI 1991-2020 monthly normals, station USC00236804; 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 Portageville?
Normal highs sit between 65°F and 85°F in April, May, September and October. Of those, September 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 USC00236804.
When is the last frost in Portageville?
In Portageville, the last spring frost (32°F) comes after March 25 in half of years and after April 9 in one year in ten; the first autumn frost comes before November 7 in half of years and before October 24 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 251 year in 10 after April 9; 9 in 10 after March 7
- First autumn frost, half of years before
- November 71 year in 10 before October 24; 9 in 10 before November 27
NOAA puts the median frost-free season at 227 days, and the season without a hard freeze (28°F) at 252 days.
A hard freeze (28°F) comes after March 13 in half of springs and before November 20 in half of autumns.
The USDA's 2023 Plant Hardiness Zone Map puts Portageville in zone 7b in ZIP code 63873, the nearest ZIP area. By the map's own method, the average of each year's coldest night over 1991-2020, Portageville's NOAA station is in zone 7b: the coldest night of a typical year reaches 6°F (17 complete years).
Frost dates for every NOAA station in Missouri · Frost dates by ZIP code
Source: NOAA NCEI 1991-2020 annual normals (frost probabilities), station USC00236804; 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 Portageville?
In a normal year in Portageville, 45 days a year reach 90°F (1 of them 100°F or more), 71 nights fall to 32°F or colder and 110 days bring measurable precipitation.
- Days at 90°F or more
- 45a normal year
- Days at 100°F or more
- 1a normal year
- Nights at 32°F or colder
- 71a normal year
- Days that stay below freezing
- 12high of 32°F or less
- Days with 0.01 inch of precipitation
- 110a normal year
- Days with 1 inch of snow or more
- 3a normal year
The highest temperature in this station's record (since 1965) is 106°F, on July 17, 1980; the lowest is −15°F, on January 17, 1982.
The wettest calendar year on that record is 1973, with 77.44 in; the snowiest season is 1978–79, with 22.1 inches.
Source: NOAA NCEI 1991-2020 annual normals, station USC00236804; records: ACIS (NOAA Regional Climate Centers), station USC00236804. Records use complete months only; a month missing more than three days is left out.
How sunny is Portageville?
Over a year 77% of the sunlight that would reach the ground under clear skies gets through the clouds in the area around Portageville, 4.4 kWh per square metre a day. August is the sunniest month (84%) and February the cloudiest (65%).
| Month | Share of clear-sky sunshine | Sunshine, kWh/m² a day |
|---|---|---|
| January | 68% | 2.3 |
| February | 65% | 2.9 |
| March | 69% | 4.0 |
| April | 75% | 5.3 |
| May | 76% | 5.9 |
| June | 82% | 6.6 |
| July | 84% | 6.4 |
| August | 84% | 5.8 |
| September | 82% | 4.9 |
| October | 77% | 3.7 |
| November | 73% | 2.6 |
| December | 67% | 2.0 |
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 Portageville need?
A normal year in Portageville brings 3,960 heating degree days, 26% fewer than the median U.S. place (5,373), and 1,680 cooling degree days, 85% more than the median (908). Five months need 300 or more heating degree days, a monthly mean of about 55°F or colder. For gardens and crops, NOAA counts 4,677 growing degree days a year above 50°F.
| Month | Heating | Cooling |
|---|---|---|
| January | 922 | 0 |
| February | 714 | 0 |
| March | 521 | 5 |
| April | 225 | 35 |
| May | 48 | 163 |
| June | 2 | 364 |
| July | 0 | 456 |
| August | 1 | 398 |
| September | 26 | 209 |
| October | 196 | 48 |
| November | 501 | 4 |
| December | 805 | 0 |
| Year (annual) | 3,960 | 1,680 |
Source: NOAA NCEI 1991-2020 monthly normals, station USC00236804. 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.
How does Portageville's climate compare?
Portageville is warmer than 128 of the other 133 places with their own NOAA record in Missouri, and wetter than 113. Across the 7,247 U.S. stations with normals, its annual mean of 58.7°F is warmer than 71%.
In the Köppen classification computed from these normals, Portageville 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 Portageville share this climate record?
7 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.
- Tiptonville, TN3,425 people · 13 mi E
- Gideon, MO718 people · 12 mi W
- Wardell, MO282 people · 8 mi SW
- Hayward, MO91 people · 2 mi SE
- Tallapoosa, MO72 people · 9 mi NW
- Homestown, MO69 people · 9 mi SW
- Wynnburg, TN15 people · 14 mi SE
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 Portageville's climate
What is the coldest month in Portageville?
January, with a normal high of 43°F and a normal low of 28°F. The warmest is July (88°F by day, 71°F at night).
Does it snow in Portageville?
Yes: 7 inches in a normal year, falling on 3 days with 0.1 inch or more, the most in January (2.4 inches).
What is the rainiest month in Portageville?
May, with 5.51 in of precipitation in a normal year; the driest is August with 2.64 in.
What plant hardiness zone is Portageville in?
The USDA's 2023 map puts Portageville in zone 7b in ZIP code 63873, the nearest ZIP area. By the same method at Portageville's NOAA station, the coldest night of a typical year reaches 6°F (17 years, 1991-2020): zone 7b.
How late can frost come in Portageville?
In half of years the last 32°F night comes after March 25; in one year in ten it comes after April 9. Waiting until April 9 leaves about a one-in-ten chance of a later frost.
Nearby and next
- Missouri climateThe statewide normals and every place in the state
- New Madrid, MO15 miles from this station, 58.9°F a year
- Caruthersville, MO16 miles from this station, 60.3°F a year
- Malden, MO21 miles from this station, 59.9°F a year
- Samburg, TN22 miles from this station, 57.8°F a year
- Compare two placesMonth by month, side by side
Download these normals (CSV) · JSON · How these figures are made