St. Joseph, MO Weather & Climate Normals
What a normal year in St. Joseph actually looks like
On the 30-year record NOAA keeps for St. Joseph, MO, the comfort score comes out to 43/100, strongly seasonal: Comfortable weather is limited to a shorter window; summers, winters, or precipitation swing wide. Only 4 months a year land in the 55–75°F range this site treats as mild.
How much St. Joseph's weather actually swings
Average temperatures in St. Joseph run from 27°F in Jan up to 78°F in Jul, a 50.4°F seasonal swing, one of the widest gaps in this dataset.
St. Joseph, month by month
| Month | Avg high | Avg low | Precip |
|---|---|---|---|
| Jan | 37°F | 17°F | 0.71in |
| Feb | 43°F | 21°F | 0.95in |
| Mar | 55°F | 32°F | 2.06in |
| Apr | 66°F | 42°F | 3.71in |
| May | 76°F | 54°F | 4.87in |
| Jun | 85°F | 64°F | 4.75in |
| Jul | 88°F | 67°F | 4.73in |
| Aug | 86°F | 65°F | 3.84in |
| Sep | 80°F | 54°F | 3.18in |
| Oct | 68°F | 43°F | 2.84in |
| Nov | 53°F | 31°F | 1.87in |
| Dec | 41°F | 21°F | 1.25in |
If you're timing a visit, May, Jun, Sep, and Oct are St. Joseph's mildest stretch; if you're moving there, you should plan around Jul's heat and Jan's cold instead.
How wet St. Joseph actually gets
St. Joseph averages 34.76in of precipitation a year across roughly 99 days with measurable rain or snow; the nearest NOAA station does not record snowfall, so no snow figure is shown rather than guessed.
St. Joseph against the rest of the country
Out of 4876 cities scored here, St. Joseph comes in at 3956; within MO alone it ranks 97 of 135. Population is about 71,098.
Checking the actual forecast
These figures come from St Joseph Rosecrans Ap, MO US, the NOAA station 5.5 miles from St. Joseph, averaged over 30 years, not tomorrow's forecast.
More on how this is worked out
Why some cities show no snow or rain figure · What a 30-year climate normal actually is