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Short answer: Using NOAA’s 1991-2020 normals, July is the hottest month at every station below (normal highs from the upper 80s to about 90 degrees) and January the coldest; precipitation peaks in the spring and early summer. Normals are 30-year averages, not a forecast.
- Hottest monthJulynormal high 90°F at Springfield, 90°F at St. Louis
- Coldest monthJanuarynormal low 20°F at Kansas City
- Stations6airport and city stations
- Period1991-2020NOAA climate normals
How we checked: NOAA’s National Centers for Environmental Information 1991-2020 monthly climate normals for six Missouri stations (data service, dataset normals-monthly-1991-2020), and National Weather Service safety pages. All read on November 3, 2026. Hours, prices, rules, closures and road status change, so check the named agency or business before you rely on them. Anything we could not check is marked Not Confirmed where it appears. Weather and safety wording on this page is the National Weather Service’s own, quoted or closely paraphrased with the page named. General guidance on this page is labelled as general guidance. This is not safety, medical or legal advice; where a safety or legal rule appears, the quoted words are the official source’s own.
Highs and Lows by Month
Normal daily high / low in degrees Fahrenheit, from NOAA’s 1991-2020 normals.
| Month | Kansas City | St. Louis | Springfield | Columbia | Cape Girardeau | Joplin |
|---|---|---|---|---|---|---|
| January | 38 / 20 | 40 / 24 | 44 / 24 | 40 / 22 | 43 / 26 | 45 / 25 |
| February | 44 / 24 | 46 / 28 | 50 / 28 | 45 / 26 | 48 / 30 | 50 / 29 |
| March | 55 / 34 | 57 / 37 | 59 / 36 | 56 / 36 | 58 / 37 | 60 / 37 |
| April | 66 / 44 | 68 / 47 | 68 / 46 | 67 / 46 | 69 / 47 | 69 / 47 |
| May | 75 / 54 | 77 / 58 | 76 / 56 | 76 / 56 | 78 / 58 | 77 / 56 |
| June | 84 / 64 | 86 / 67 | 85 / 65 | 84 / 65 | 87 / 66 | 86 / 65 |
| July | 88 / 68 | 90 / 71 | 90 / 69 | 88 / 68 | 89 / 69 | 90 / 70 |
| August | 87 / 66 | 88 / 69 | 89 / 67 | 88 / 67 | 88 / 66 | 90 / 68 |
| September | 79 / 58 | 81 / 61 | 81 / 59 | 80 / 58 | 82 / 58 | 82 / 59 |
| October | 67 / 46 | 69 / 49 | 70 / 47 | 68 / 47 | 71 / 46 | 71 / 48 |
| November | 54 / 34 | 56 / 37 | 57 / 36 | 55 / 36 | 57 / 37 | 58 / 37 |
| December | 42 / 24 | 44 / 28 | 47 / 28 | 44 / 27 | 46 / 30 | 48 / 28 |
Precipitation by Month
Normal monthly precipitation in inches (rain plus melted snow).
| Month | Kansas City | St. Louis | Springfield | Columbia | Cape Girardeau | Joplin |
|---|---|---|---|---|---|---|
| January | 1.16 | 2.59 | 2.54 | 2.12 | 3.51 | 1.92 |
| February | 1.48 | 2.23 | 2.40 | 2.12 | 3.31 | 1.98 |
| March | 2.36 | 3.50 | 3.51 | 2.97 | 4.69 | 3.29 |
| April | 4.05 | 4.73 | 4.71 | 4.88 | 5.18 | 4.99 |
| May | 5.32 | 4.82 | 5.56 | 4.77 | 5.27 | 6.56 |
| June | 5.25 | 4.49 | 4.47 | 4.23 | 3.80 | 5.60 |
| July | 4.58 | 3.93 | 3.85 | 4.13 | 3.87 | 3.97 |
| August | 4.24 | 3.38 | 3.59 | 4.14 | 3.23 | 3.36 |
| September | 4.04 | 2.96 | 4.31 | 3.83 | 3.61 | 4.18 |
| October | 3.25 | 3.15 | 3.60 | 3.47 | 3.57 | 3.80 |
| November | 2.00 | 3.42 | 3.56 | 2.68 | 4.25 | 3.33 |
| December | 1.57 | 2.50 | 2.61 | 2.09 | 3.62 | 2.60 |
Snow by Month
Normal monthly snowfall in inches. NOAA’s file has no snow normals for Cape Girardeau or Joplin, so those columns say n/a.
| Month | Kansas City | St. Louis | Springfield | Columbia | Cape Girardeau | Joplin |
|---|---|---|---|---|---|---|
| January | 4.9 | 5.7 | 4.4 | 6.0 | n/a | n/a |
| February | 5.9 | 4.3 | 3.3 | 4.6 | n/a | n/a |
| March | 1.7 | 2.3 | 2.0 | 1.5 | n/a | n/a |
| April | 0.3 | 0.2 | 0.1 | 0.2 | n/a | n/a |
| May | 0.0 | 0.0 | 0.0 | 0.0 | n/a | n/a |
| June | 0.0 | 0.0 | 0.0 | 0.0 | n/a | n/a |
| July | 0.0 | 0.0 | 0.0 | 0.0 | n/a | n/a |
| August | 0.0 | 0.0 | 0.0 | 0.0 | n/a | n/a |
| September | 0.0 | 0.0 | 0.0 | 0.0 | n/a | n/a |
| October | 0.3 | 0.0 | 0.0 | 0.0 | n/a | n/a |
| November | 1.1 | 0.9 | 0.6 | 0.8 | n/a | n/a |
| December | 4.0 | 3.2 | 3.3 | 3.4 | n/a | n/a |
Days at or Above 90°F
Normal number of days in the month with a high of 90°F or more.
| Month | Kansas City | St. Louis | Springfield | Columbia | Cape Girardeau | Joplin |
|---|---|---|---|---|---|---|
| May | 0.8 | 1.9 | 0.4 | 0.6 | 1.5 | 0.9 |
| June | 7.1 | 10.6 | 6.1 | 6.4 | 10.9 | 9.6 |
| July | 13.1 | 15.9 | 15.1 | 12.9 | 16.6 | 18.4 |
| August | 11.6 | 13.0 | 13.7 | 11.3 | 13.0 | 17.4 |
| September | 3.3 | 5.0 | 4.1 | 3.3 | 4.7 | 6.0 |
Severe Weather and Safety
What The National Weather Service Says
- TornadoesThe NWS tornado safety page says tornadoes can occur at any time of day or night and at any time of the year, and that although they are most common in the Central Plains and the southeastern United States they have been reported in all 50 states. It does not give a Missouri month window, so we give none.
- HeatThe NWS heat safety page says it is never safe to leave a child, disabled person or pet locked in a car, even in winter.
- WinterThe NWS winter page says winter storms bring snow, sleet and freezing rain, and that blizzards can make roads impassable.
- FloodingThe NWS flood page says flooding is a threat to some part of the United States nearly every day of the year, and teaches what to do before, during and after a flood.
- Local officesNWS forecast offices for Missouri: St. Louis, Springfield and Kansas City / Pleasant Hill. Our conditions page links current alerts.
What to Pack
General guidance, ours and not NOAA’s: where the normal high is below about 45°F (December to February in most of the state) plan for a warm coat; between about 45 and 70°F, layers; above about 85°F (June to August), light clothes, sun protection and water. Check a current forecast before you go.
Keep Planning
Frequently Asked Questions
What is the hottest month in Missouri?
In NOAA’s 1991-2020 normals, July at all six stations here.
How much snow does Missouri get?
NOAA’s normals show about 4 to 6 inches in January at Kansas City, St. Louis, Springfield and Columbia; see the snow table.
When is tornado season in Missouri?
The National Weather Service says tornadoes can occur at any time of the year; it does not give a Missouri month window on the page we read.
Sources
- NOAA NCEI, 1991-2020 monthly US climate normals, read November 3, 2026 (data pulled from the NCEI data service, dataset normals-monthly-1991-2020; stations Kansas City Intl AP, USW00003947; St. Louis Lambert Intl AP, USW00013994; Springfield, USW00013995; Columbia Rgnl AP, USW00003945; Cape Girardeau Muni AP, USW00003935; Joplin Regional Airport, USW00013987)
- National Weather Service, tornado safety, read November 3, 2026
- National Weather Service, heat safety, read November 3, 2026
- National Weather Service, winter safety, read November 3, 2026
- National Weather Service, flood safety, read November 3, 2026
- NWS St. Louis, read November 3, 2026
- NWS Springfield, read November 3, 2026
- NWS Kansas City / Pleasant Hill, read November 3, 2026
Read on November 3, 2026. How we check: editorial standards; spot a mistake? Tell us.
Cite this page: It's Missouri, “Missouri Weather by Month: NOAA 1991-2020 Normals”, itsmissouri.com/data/missouri-weather-by-month/ (updated ). By the It's Missouri editorial team. Free to quote with attribution and a link to this page; data and tables are licensed CC BY 4.0.