Kosciusko, Mississippi climate: Normal weather by month, frost dates and records
Kosciusko's normal year runs from 33°F January nights to 90°F July afternoons, with 62.5 inches of precipitation and 1 inch of snow a year. (NOAA 1991-2020 normals)
In metric: a yearly mean of 17.1°C, January lows of 1°C, July highs of 32°C, 1,588 mm of precipitation a year.
- NOAA stationKosciusko
- Station IDUSC00224776
- Location33.06°N 89.58°W
- Elevation410 ft (125 m)
- Population6,774
On October 22, the normal high in Kosciusko is 72°F and the normal low 49°F, and the chance of measurable rain or snow is 20%.
Normals describe a typical year at the station, not a forecast. The National Weather Service forecast for Kosciusko.
- Jan 54° 33°
- Feb 59° 36°
- Mar 67° 43°
- Apr 74° 51°
- May 81° 60°
- Jun 88° 68°
- Jul 90° 71°
- Aug 90° 70°
- Sep 85° 64°
- Oct 75° 52°
- Nov 64° 41°
- Dec 56° 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 Kosciusko each month?
July is the warmest month, with normal highs of 90°F; January the coldest, with normal lows of 33°F. The most precipitation falls in April (6.75 in), the least in August (3.74 in).
| Month | High | Low | Mean | Precip. | Snow | Wet days | 90°F days | Freezing nights | Daylight |
|---|---|---|---|---|---|---|---|---|---|
| January | 54°F | 33°F | 43.7°F | 5.79 | 0.6 | 9 | <1 | 16 | 10 h 10 min |
| February | 59°F | 36°F | 47.3°F | 5.97 | 0.2 | 9 | <1 | 13 | 11 h |
| March | 67°F | 43°F | 54.8°F | 5.88 | 0.0 | 9 | <1 | 6 | 12 h |
| April | 74°F | 51°F | 62.6°F | 6.75 | 0.0 | 7 | <1 | 1 | 13 h |
| May | 81°F | 60°F | 70.7°F | 4.83 | 0.0 | 9 | 2 | <1 | 13 h 50 min |
| June | 88°F | 68°F | 77.7°F | 4.17 | 0.0 | 9 | 13 | <1 | 14 h 20 min |
| July | 90°F | 71°F | 80.5°F | 5.85 | 0.0 | 10 | 20 | <1 | 14 h 10 min |
| August | 90°F | 70°F | 80.0°F | 3.74 | 0.0 | 8 | 18 | <1 | 13 h 20 min |
| September | 85°F | 64°F | 74.4°F | 4.45 | 0.0 | 6 | 9 | <1 | 12 h 30 min |
| October | 75°F | 52°F | 63.2°F | 4.49 | 0.0 | 6 | <1 | 1 | 11 h 20 min |
| November | 64°F | 41°F | 52.5°F | 4.76 | 0.0 | 7 | <1 | 8 | 10 h 30 min |
| December | 56°F | 36°F | 46.0°F | 5.84 | 0.5 | 9 | <1 | 15 | 10 h |
| Year (annual) | 74°F | 52°F | 62.8°F | 62.52 | 1.3 | 96 | 62 | 59 |
The same normals in °C and millimetres
| Month | High | Low | Mean | Precip. | Snow |
|---|---|---|---|---|---|
| January | 12°C | 1°C | 6.5°C | 147 mm | 2 cm |
| February | 15°C | 2°C | 8.5°C | 152 mm | 1 cm |
| March | 19°C | 6°C | 12.7°C | 149 mm | 0 cm |
| April | 24°C | 11°C | 17.0°C | 171 mm | 0 cm |
| May | 27°C | 16°C | 21.5°C | 123 mm | 0 cm |
| June | 31°C | 20°C | 25.4°C | 106 mm | 0 cm |
| July | 32°C | 22°C | 26.9°C | 149 mm | 0 cm |
| August | 32°C | 21°C | 26.7°C | 95 mm | 0 cm |
| September | 30°C | 18°C | 23.6°C | 113 mm | 0 cm |
| October | 24°C | 11°C | 17.3°C | 114 mm | 0 cm |
| November | 18°C | 5°C | 11.4°C | 121 mm | 0 cm |
| December | 13°C | 2°C | 7.8°C | 148 mm | 1 cm |
Source: NOAA NCEI 1991-2020 monthly normals, station USC00224776; 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 Kosciusko?
Normal highs sit between 65°F and 85°F in March, April, May and October. Of those, October has the fewest days with rain (6).
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 USC00224776.
When is the last frost in Kosciusko?
In Kosciusko, the last spring frost (32°F) comes after March 18 in half of years and after April 5 in one year in ten; the first autumn frost comes before November 11 in half of years and before October 29 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 181 year in 10 after April 5; 9 in 10 after February 28
- First autumn frost, half of years before
- November 111 year in 10 before October 29; 9 in 10 before December 1
NOAA puts the median frost-free season at 239 days, and the season without a hard freeze (28°F) at 264 days.
A hard freeze (28°F) comes after March 5 in half of springs and before November 24 in half of autumns.
The USDA's 2023 Plant Hardiness Zone Map puts Kosciusko in zone 8a in ZIP code 39090, the nearest ZIP area. By the map's own method, the average of each year's coldest night over 1991-2020, Kosciusko's NOAA station is in zone 8a: the coldest night of a typical year reaches 15°F (23 complete years).
Frost dates for every NOAA station in Mississippi · Frost dates by ZIP code
Source: NOAA NCEI 1991-2020 annual normals (frost probabilities), station USC00224776; 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 Kosciusko?
In a normal year in Kosciusko, 62 days a year reach 90°F (2 of them 100°F or more), 59 nights fall to 32°F or colder and 96 days bring measurable precipitation.
- Days at 90°F or more
- 62a normal year
- Days at 100°F or more
- 2a normal year
- Nights at 32°F or colder
- 59a normal year
- Days that stay below freezing
- 1high of 32°F or less
- Days with 0.01 inch of precipitation
- 96a normal year
- Days with 1 inch of snow or more
- fewer than 1a normal year
The highest temperature in this station's record (since 1893) is 109°F, on June 22, 1899; the lowest is −14°F, on January 27, 1940.
The wettest calendar year on that record is 2019, with 89.26 in; the snowiest season is 1997–98, with 12.2 inches.
Source: NOAA NCEI 1991-2020 annual normals, station USC00224776; records: ACIS (NOAA Regional Climate Centers), station USC00224776. Records use complete months only; a month missing more than three days is left out.
How sunny is Kosciusko?
Over a year 77% of the sunlight that would reach the ground under clear skies gets through the clouds in the area around Kosciusko, 4.5 kWh per square metre a day. June is the sunniest month (82%) and February the cloudiest (66%).
| Month | Share of clear-sky sunshine | Sunshine, kWh/m² a day |
|---|---|---|
| January | 70% | 2.6 |
| February | 66% | 3.1 |
| March | 71% | 4.3 |
| April | 76% | 5.5 |
| May | 79% | 6.1 |
| June | 82% | 6.5 |
| July | 81% | 6.2 |
| August | 82% | 5.7 |
| September | 82% | 5.0 |
| October | 79% | 4.0 |
| November | 77% | 3.0 |
| December | 69% | 2.3 |
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 Kosciusko need?
A normal year in Kosciusko brings 2,777 heating degree days, 48% fewer than the median U.S. place (5,373), and 1,989 cooling degree days, 2.2 times 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 5,451 growing degree days a year above 50°F.
| Month | Heating | Cooling |
|---|---|---|
| January | 663 | 1 |
| February | 497 | 3 |
| March | 332 | 16 |
| April | 135 | 63 |
| May | 24 | 199 |
| June | 0 | 380 |
| July | 0 | 479 |
| August | 0 | 463 |
| September | 8 | 292 |
| October | 136 | 79 |
| November | 386 | 10 |
| December | 595 | 4 |
| Year (annual) | 2,777 | 1,989 |
Source: NOAA NCEI 1991-2020 monthly normals, station USC00224776. 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 Kosciusko been warmer than normal lately?
Over 69 complete years from 1890 to 2017, the station's annual mean temperature rose at a fitted -0.3°F per century (−0.02°C per decade). A fitted rate summarizes the whole record; single years swing well above and below it.
Source: trend: NOAA GHCN-Monthly v4. A year counts only with all twelve months complete.
How does Kosciusko's climate compare?
Kosciusko is warmer than 27 of the other 80 places with their own NOAA record in Mississippi, and wetter than 64. Across the 7,247 U.S. stations with normals, its annual mean of 62.8°F is warmer than 82%.
In the Köppen classification computed from these normals, Kosciusko 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 Kosciusko share this climate record?
3 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.
- Ethel, MS328 people · 8 mi NE
- West, MS134 people · 15 mi NW
- Sallis, MS129 people · 11 mi W
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 Kosciusko's climate
What is the coldest month in Kosciusko?
January, with a normal high of 54°F and a normal low of 33°F. The warmest is July (90°F by day, 71°F at night).
Does it snow in Kosciusko?
Yes: 1 inch in a normal year, falling on 1 days with 0.1 inch or more, the most in January (0.6 inches).
What is the rainiest month in Kosciusko?
April, with 6.75 in of precipitation in a normal year; the driest is August with 3.74 in.
What plant hardiness zone is Kosciusko in?
The USDA's 2023 map puts Kosciusko in zone 8a in ZIP code 39090, the nearest ZIP area. By the same method at Kosciusko's NOAA station, the coldest night of a typical year reaches 15°F (23 years, 1991-2020): zone 8a.
How late can frost come in Kosciusko?
In half of years the last 32°F night comes after March 18; in one year in ten it comes after April 5. Waiting until April 5 leaves about a one-in-ten chance of a later frost.
Nearby and next
- Mississippi climateThe statewide normals and every place in the state
- Carthage, MS21 miles from this station, 63.8°F a year
- Pickens, MS26 miles from this station, 63.5°F a year
- Lexington, MS28 miles from this station, 61.7°F a year
- Winona, MS30 miles from this station, 60.3°F a year
- Compare two placesMonth by month, side by side
Download these normals (CSV) · JSON · How these figures are made