Fredericktown, Missouri climate: Normal weather by month, frost dates and records
Fredericktown's normal year runs from 21°F January nights to 88°F July afternoons, with 46.3 inches of precipitation and 9 inches of snow a year. (NOAA 1991-2020 normals)
In metric: a yearly mean of 12.5°C, January lows of −6°C, July highs of 31°C, 1,176 mm of precipitation a year.
- NOAA stationFredericktown
- Station IDUSC00233038
- Location37.57°N 90.31°W
- Elevation760 ft (232 m)
- From the centerunder 1 mile
- Population4,581
On October 23, the normal high in Fredericktown is 66°F and the normal low 39°F, and the chance of measurable rain or snow is 26%.
Normals describe a typical year at the station, not a forecast. The National Weather Service forecast for Fredericktown.
- Jan 42° 21°
- Feb 47° 24°
- Mar 57° 32°
- Apr 68° 42°
- May 76° 52°
- Jun 84° 61°
- Jul 88° 65°
- Aug 87° 62°
- Sep 80° 54°
- Oct 69° 42°
- Nov 56° 32°
- Dec 45° 24°
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 Fredericktown each month?
July is the warmest month, with normal highs of 88°F; January the coldest, with normal lows of 21°F. The most precipitation falls in May (5.32 in), the least in February (2.78 in).
| Month | High | Low | Mean | Precip. | Snow | Wet days | 90°F days | Freezing nights | Daylight |
|---|---|---|---|---|---|---|---|---|---|
| January | 42°F | 21°F | 31.2°F | 2.96 | 2.8 | 8 | <1 | 26 | 9 h 50 min |
| February | 47°F | 24°F | 35.3°F | 2.78 | 3.2 | 8 | <1 | 22 | 10 h 50 min |
| March | 57°F | 32°F | 44.4°F | 3.82 | 1.0 | 10 | <1 | 16 | 11 h 50 min |
| April | 68°F | 42°F | 54.8°F | 5.27 | 0.0 | 10 | <1 | 5 | 13 h 10 min |
| May | 76°F | 52°F | 64.0°F | 5.32 | 0.0 | 11 | 1 | 1 | 14 h 10 min |
| June | 84°F | 61°F | 72.3°F | 3.56 | 0.0 | 8 | 6 | <1 | 14 h 40 min |
| July | 88°F | 65°F | 76.2°F | 4.01 | 0.0 | 9 | 13 | <1 | 14 h 30 min |
| August | 87°F | 62°F | 74.6°F | 3.90 | 0.0 | 8 | 11 | <1 | 13 h 40 min |
| September | 80°F | 54°F | 66.9°F | 3.47 | 0.0 | 7 | 4 | <1 | 12 h 30 min |
| October | 69°F | 42°F | 55.3°F | 3.29 | 0.1 | 8 | <1 | 5 | 11 h 20 min |
| November | 56°F | 32°F | 44.2°F | 4.60 | 0.3 | 8 | <1 | 16 | 10 h 10 min |
| December | 45°F | 24°F | 34.7°F | 3.32 | 1.9 | 9 | <1 | 24 | 9 h 40 min |
| Year (annual) | 67°F | 42°F | 54.5°F | 46.30 | 9.3 | 103 | 35 | 115 |
The same normals in °C and millimetres
| Month | High | Low | Mean | Precip. | Snow |
|---|---|---|---|---|---|
| January | 5°C | −6°C | −0.4°C | 75 mm | 7 cm |
| February | 8°C | −5°C | 1.8°C | 71 mm | 8 cm |
| March | 14°C | 0°C | 6.9°C | 97 mm | 3 cm |
| April | 20°C | 5°C | 12.7°C | 134 mm | 0 cm |
| May | 24°C | 11°C | 17.8°C | 135 mm | 0 cm |
| June | 29°C | 16°C | 22.4°C | 90 mm | 0 cm |
| July | 31°C | 18°C | 24.6°C | 102 mm | 0 cm |
| August | 31°C | 17°C | 23.7°C | 99 mm | 0 cm |
| September | 27°C | 12°C | 19.4°C | 88 mm | 0 cm |
| October | 21°C | 5°C | 12.9°C | 84 mm | 0 cm |
| November | 13°C | 0°C | 6.8°C | 117 mm | 1 cm |
| December | 7°C | −4°C | 1.5°C | 84 mm | 5 cm |
Source: NOAA NCEI 1991-2020 monthly normals, station USC00233038; 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 Fredericktown?
Normal highs sit between 65°F and 85°F in April, May, June, 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 USC00233038.
When is the last frost in Fredericktown?
In Fredericktown, the last spring frost (32°F) comes after April 21 in half of years and after May 8 in one year in ten; the first autumn frost comes before October 16 in half of years and before October 1 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 211 year in 10 after May 8; 9 in 10 after April 8
- First autumn frost, half of years before
- October 161 year in 10 before October 1; 9 in 10 before October 28
NOAA puts the median frost-free season at 174 days, and the season without a hard freeze (28°F) at 197 days.
A hard freeze (28°F) comes after April 10 in half of springs and before October 26 in half of autumns.
The USDA's 2023 Plant Hardiness Zone Map puts Fredericktown in zone 6b in ZIP code 63645, the nearest ZIP area. By the map's own method, the average of each year's coldest night over 1991-2020, Fredericktown's NOAA station is in zone 6b: the coldest night of a typical year reaches −3°F (26 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 USC00233038; 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 Fredericktown?
In a normal year in Fredericktown, 35 days a year reach 90°F (1 of them 100°F or more), 115 nights fall to 32°F or colder and 103 days bring measurable precipitation.
- Days at 90°F or more
- 35a normal year
- Days at 100°F or more
- 1a normal year
- Nights at 32°F or colder
- 115a normal year
- Days that stay below freezing
- 17high of 32°F or less
- Days with 0.01 inch of precipitation
- 103a normal year
- Days with 1 inch of snow or more
- 3a normal year
The highest temperature in this station's record (since 1962) is 109°F, on July 16, 1980; the lowest is −24°F, on January 11, 1977.
The wettest calendar year on that record is 1973, with 62.10 in; the snowiest season is 1978–79, with 38.0 inches.
Source: NOAA NCEI 1991-2020 annual normals, station USC00233038; records: ACIS (NOAA Regional Climate Centers), station USC00233038. Records use complete months only; a month missing more than three days is left out.
How sunny is Fredericktown?
Over a year 75% of the sunlight that would reach the ground under clear skies gets through the clouds in the area around Fredericktown, 4.3 kWh per square metre a day. June is the sunniest month (82%) and December the cloudiest (66%).
| Month | Share of clear-sky sunshine | Sunshine, kWh/m² a day |
|---|---|---|
| January | 68% | 2.2 |
| February | 66% | 2.9 |
| March | 68% | 3.9 |
| April | 72% | 5.1 |
| May | 74% | 5.7 |
| June | 82% | 6.5 |
| July | 82% | 6.3 |
| August | 81% | 5.6 |
| September | 81% | 4.8 |
| October | 76% | 3.5 |
| November | 73% | 2.5 |
| December | 66% | 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 Fredericktown need?
A normal year in Fredericktown brings 4,931 heating degree days, 8% fewer than the median U.S. place (5,373), and 1,138 cooling degree days, 25% more 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 3,766 growing degree days a year above 50°F.
| Month | Heating | Cooling |
|---|---|---|
| January | 1,048 | 0 |
| February | 832 | 0 |
| March | 643 | 3 |
| April | 322 | 18 |
| May | 116 | 85 |
| June | 13 | 232 |
| July | 1 | 350 |
| August | 4 | 302 |
| September | 69 | 127 |
| October | 321 | 20 |
| November | 625 | 1 |
| December | 938 | 0 |
| Year (annual) | 4,931 | 1,138 |
Source: NOAA NCEI 1991-2020 monthly normals, station USC00233038. 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 Fredericktown been warmer than normal lately?
Over 38 complete years from 1963 to 2020, the station's annual mean temperature rose at a fitted 2.8°F per century (+0.16°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 Fredericktown's climate compare?
Fredericktown is warmer than 49 of the other 133 places with their own NOAA record in Missouri, and wetter than 89. Across the 7,247 U.S. stations with normals, its annual mean of 54.5°F is warmer than 59%.
In the Köppen classification computed from these normals, Fredericktown is Dfa: continental, 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 Fredericktown 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.
- Ironton, MO1,443 people · 18 mi W
- Arcadia, MO607 people · 18 mi W
- Junction City, MO286 people · 1 mi E
- Cobalt, MO263 people · 2 mi SE
- Marquand, MO190 people · 13 mi SE
- Mine La Motte, MO154 people · 3 mi N
- Cherokee Pass, MO130 people · 6 mi S
- Knob Lick, MO79 people · 8 mi NW
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 Fredericktown's climate
What is the coldest month in Fredericktown?
January, with a normal high of 42°F and a normal low of 21°F. The warmest is July (88°F by day, 65°F at night).
Does it snow in Fredericktown?
Yes: 9 inches in a normal year, falling on 5 days with 0.1 inch or more, the most in February (3.2 inches).
What is the rainiest month in Fredericktown?
May, with 5.32 in of precipitation in a normal year; the driest is February with 2.78 in.
What plant hardiness zone is Fredericktown in?
The USDA's 2023 map puts Fredericktown in zone 6b in ZIP code 63645, the nearest ZIP area. By the same method at Fredericktown's NOAA station, the coldest night of a typical year reaches −3°F (26 years, 1991-2020): zone 6b.
How late can frost come in Fredericktown?
In half of years the last 32°F night comes after April 21; in one year in ten it comes after May 8. Waiting until May 8 leaves about a one-in-ten chance of a later frost.
Nearby and next
- Missouri climateThe statewide normals and every place in the state
- Farmington, MO16 miles from this station, 56.1°F a year
- Perryville, MO24 miles from this station, 55.0°F a year
- Marble Hill, MO27 miles from this station, 58.1°F a year
- Kaskaskia, IL34 miles from this station, 56.4°F a year
- Compare two placesMonth by month, side by side
Download these normals (CSV) · JSON · How these figures are made