Florissant, MO Weather & Climate Normals
What a normal year in Florissant actually looks like
On the 30-year record NOAA keeps for Florissant, MO, the comfort score comes out to 42/100, 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 Florissant's weather actually swings
Average temperatures in Florissant run from 32°F in Jan up to 80°F in Jul, a 48.3°F seasonal swing, one of the widest gaps in this dataset.
Florissant, month by month
| Month | Avg high | Avg low | Precip | Snow |
|---|---|---|---|---|
| Jan | 40°F | 24°F | 2.59in | 5.7in |
| Feb | 46°F | 28°F | 2.23in | 4.3in |
| Mar | 57°F | 37°F | 3.5in | 2.3in |
| Apr | 68°F | 47°F | 4.73in | 0.2in |
| May | 77°F | 58°F | 4.82in | 0in |
| Jun | 86°F | 67°F | 4.49in | 0in |
| Jul | 90°F | 71°F | 3.93in | 0in |
| Aug | 88°F | 69°F | 3.38in | 0in |
| Sep | 81°F | 61°F | 2.96in | 0in |
| Oct | 69°F | 49°F | 3.15in | 0in |
| Nov | 56°F | 37°F | 3.42in | 0.9in |
| Dec | 45°F | 29°F | 2.5in | 3.2in |
If you're timing a visit, Apr, May, Sep, and Oct are Florissant's mildest stretch; if you're moving there, you should plan around Jul's heat and Jan's cold instead.
How wet Florissant actually gets
Over a typical year, Florissant sees about 41.7in of precipitation a year across roughly 114 days with measurable rain or snow, with 16.6in of snow a year.
Florissant against the rest of the country
Out of 4876 cities scored here, Florissant comes in at 4175; within MO alone it ranks 107 of 135. Population is about 51,290.
Checking the actual forecast
These figures come from St Louis Lambert Intl Ap, MO US, the NOAA station 4.1 miles from Florissant, averaged over 30 years, not tomorrow's forecast.
More on how this is worked out
Why this uses the nearest NOAA station · How the comfort score is calculated