Jackson, Missouri climate: Normal weather by month, frost dates and records
Jackson's normal year runs from 24°F January nights to 90°F July afternoons, with 50.5 inches of precipitation and 8 inches of snow a year. (NOAA 1991-2020 normals)
In metric: a yearly mean of 13.8°C, January lows of −5°C, July highs of 32°C, 1,282 mm of precipitation a year.
- NOAA stationJackson
- Station IDUSC00234226
- Location37.38°N 89.67°W
- Elevation440 ft (134 m)
- Population15,929
On October 23, the normal high in Jackson is 67°F and the normal low 44°F, and the chance of measurable rain or snow is 27%.
Normals describe a typical year at the station, not a forecast. The National Weather Service forecast for Jackson.
- Jan 41° 24°
- Feb 46° 27°
- Mar 57° 35°
- Apr 69° 46°
- May 78° 56°
- Jun 87° 65°
- Jul 90° 69°
- Aug 89° 67°
- Sep 82° 59°
- Oct 70° 47°
- Nov 55° 35°
- Dec 45° 28°
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 Jackson each month?
July is the warmest month, with normal highs of 90°F; January the coldest, with normal lows of 24°F. The most precipitation falls in May (5.53 in), the least in January (3.34 in).
| Month | High | Low | Mean | Precip. | Snow | Wet days | 90°F days | Freezing nights | Daylight |
|---|---|---|---|---|---|---|---|---|---|
| January | 41°F | 24°F | 32.4°F | 3.34 | 2.2 | 10 | <1 | 24 | 9 h 50 min |
| February | 46°F | 27°F | 36.4°F | 3.68 | 1.2 | 8 | <1 | 19 | 10 h 50 min |
| March | 57°F | 35°F | 46.0°F | 5.01 | 1.5 | 11 | <1 | 12 | 11 h 50 min |
| April | 69°F | 46°F | 57.2°F | 5.51 | 0.0 | 11 | <1 | 2 | 13 h 10 min |
| May | 78°F | 56°F | 67.3°F | 5.53 | 0.0 | 12 | 3 | <1 | 14 h 10 min |
| June | 87°F | 65°F | 76.1°F | 4.20 | 0.0 | 9 | 14 | <1 | 14 h 40 min |
| July | 90°F | 69°F | 79.6°F | 4.29 | 0.0 | 9 | 19 | <1 | 14 h 30 min |
| August | 89°F | 67°F | 78.0°F | 3.61 | 0.0 | 8 | 15 | <1 | 13 h 40 min |
| September | 82°F | 59°F | 70.2°F | 3.40 | 0.0 | 7 | 6 | <1 | 12 h 30 min |
| October | 70°F | 47°F | 58.3°F | 3.65 | 0.1 | 8 | <1 | 2 | 11 h 20 min |
| November | 55°F | 35°F | 45.3°F | 4.57 | 0.1 | 9 | <1 | 12 | 10 h 10 min |
| December | 45°F | 28°F | 36.2°F | 3.70 | 2.4 | 9 | <1 | 21 | 9 h 40 min |
| Year (annual) | 67°F | 46°F | 56.9°F | 50.49 | 7.5 | 111 | 57 | 91 |
The same normals in °C and millimetres
| Month | High | Low | Mean | Precip. | Snow |
|---|---|---|---|---|---|
| January | 5°C | −5°C | 0.2°C | 85 mm | 6 cm |
| February | 8°C | −3°C | 2.4°C | 93 mm | 3 cm |
| March | 14°C | 2°C | 7.8°C | 127 mm | 4 cm |
| April | 20°C | 8°C | 14.0°C | 140 mm | 0 cm |
| May | 26°C | 14°C | 19.6°C | 140 mm | 0 cm |
| June | 31°C | 19°C | 24.5°C | 107 mm | 0 cm |
| July | 32°C | 21°C | 26.4°C | 109 mm | 0 cm |
| August | 32°C | 19°C | 25.6°C | 92 mm | 0 cm |
| September | 28°C | 15°C | 21.2°C | 86 mm | 0 cm |
| October | 21°C | 8°C | 14.6°C | 93 mm | 0 cm |
| November | 13°C | 2°C | 7.4°C | 116 mm | 0 cm |
| December | 7°C | −2°C | 2.3°C | 94 mm | 6 cm |
Source: NOAA NCEI 1991-2020 monthly normals, station USC00234226; 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 Jackson?
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 USC00234226.
When is the last frost in Jackson?
In Jackson, the last spring frost (32°F) comes after April 7 in half of years and after April 22 in one year in ten; the first autumn frost comes before October 29 in half of years and before October 16 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 71 year in 10 after April 22; 9 in 10 after March 24
- First autumn frost, half of years before
- October 291 year in 10 before October 16; 9 in 10 before November 9
NOAA puts the median frost-free season at 202 days, and the season without a hard freeze (28°F) at 222 days.
A hard freeze (28°F) comes after March 29 in half of springs and before November 5 in half of autumns.
The USDA's 2023 Plant Hardiness Zone Map puts Jackson in zone 7a in ZIP code 63755, the nearest ZIP area. By the map's own method, the average of each year's coldest night over 1991-2020, Jackson's NOAA station is in zone 7a: the coldest night of a typical year reaches 3°F (27 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 USC00234226; 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 Jackson?
In a normal year in Jackson, 57 days a year reach 90°F (2 of them 100°F or more), 91 nights fall to 32°F or colder and 111 days bring measurable precipitation.
- Days at 90°F or more
- 57a normal year
- Days at 100°F or more
- 2a normal year
- Nights at 32°F or colder
- 91a normal year
- Days that stay below freezing
- 15high of 32°F or less
- Days with 0.01 inch of precipitation
- 111a normal year
- Days with 1 inch of snow or more
- 2a normal year
The highest temperature in this station's record (since 1893) is 112°F, on July 24, 1934; the lowest is −26°F, on January 18, 1930.
The wettest calendar year on that record is 1945, with 79.15 in; the snowiest season is 1978–79, with 50.2 inches.
Source: NOAA NCEI 1991-2020 annual normals, station USC00234226; records: ACIS (NOAA Regional Climate Centers), station USC00234226. Records use complete months only; a month missing more than three days is left out.
How sunny is Jackson?
Over a year 75% of the sunlight that would reach the ground under clear skies gets through the clouds in the area around Jackson, 4.3 kWh per square metre a day. July is the sunniest month (82%) and December the cloudiest (64%).
| Month | Share of clear-sky sunshine | Sunshine, kWh/m² a day |
|---|---|---|
| January | 66% | 2.2 |
| February | 65% | 2.8 |
| March | 67% | 3.8 |
| April | 73% | 5.1 |
| May | 75% | 5.7 |
| June | 82% | 6.5 |
| July | 82% | 6.3 |
| August | 82% | 5.7 |
| September | 81% | 4.8 |
| October | 76% | 3.5 |
| November | 72% | 2.5 |
| December | 64% | 1.9 |
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 Jackson need?
A normal year in Jackson brings 4,499 heating degree days, 16% fewer than the median U.S. place (5,373), and 1,592 cooling degree days, 75% 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 4,418 growing degree days a year above 50°F.
| Month | Heating | Cooling |
|---|---|---|
| January | 1,009 | 0 |
| February | 801 | 0 |
| March | 592 | 3 |
| April | 262 | 27 |
| May | 70 | 141 |
| June | 3 | 337 |
| July | 0 | 451 |
| August | 0 | 403 |
| September | 34 | 192 |
| October | 244 | 37 |
| November | 593 | 2 |
| December | 891 | 0 |
| Year (annual) | 4,499 | 1,592 |
Source: NOAA NCEI 1991-2020 monthly normals, station USC00234226. 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 Jackson been warmer than normal lately?
Over 100 complete years from 1902 to 2020, the station's annual mean temperature rose at a fitted 0.9°F per century (+0.05°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 Jackson's climate compare?
Jackson is warmer than 108 of the other 133 places with their own NOAA record in Missouri, and wetter than 118. Across the 7,247 U.S. stations with normals, its annual mean of 56.9°F is warmer than 66%.
In the Köppen classification computed from these normals, Jackson 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 Jackson share this climate record?
8 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.
- Gordonville, MO629 people · 5 mi S
- Grand Tower, IL475 people · 20 mi NE
- Millersville, MO305 people · 8 mi NW
- Oak Ridge, MO238 people · 9 mi N
- Burfordville, MO185 people · 8 mi W
- Shawneetown, MO165 people · 12 mi N
- Pocahontas, MO97 people · 9 mi N
- New Wells, MO0 people · 12 mi N
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 Jackson's climate
What is the coldest month in Jackson?
January, with a normal high of 41°F and a normal low of 24°F. The warmest is July (90°F by day, 69°F at night).
Does it snow in Jackson?
Yes: 8 inches in a normal year, falling on 3 days with 0.1 inch or more, the most in December (2.4 inches).
What is the rainiest month in Jackson?
May, with 5.53 in of precipitation in a normal year; the driest is January with 3.34 in.
What plant hardiness zone is Jackson in?
The USDA's 2023 map puts Jackson in zone 7a in ZIP code 63755, the nearest ZIP area. By the same method at Jackson's NOAA station, the coldest night of a typical year reaches 3°F (27 years, 1991-2020): zone 7a.
How late can frost come in Jackson?
In half of years the last 32°F night comes after April 7; in one year in ten it comes after April 22. Waiting until April 22 leaves about a one-in-ten chance of a later frost.
Nearby and next
- Missouri climateThe statewide normals and every place in the state
- Cape Girardeau, MO12 miles from this station, 57.7°F a year
- Marble Hill, MO17 miles from this station, 58.1°F a year
- Advance, MO24 miles from this station, 56.8°F a year
- Anna, IL25 miles from this station, 58.5°F a year
- Compare two placesMonth by month, side by side
Download these normals (CSV) · JSON · How these figures are made