Union, MO Weather & Climate Normals
What a normal year in Union actually looks like
On the 30-year record NOAA keeps for Union, MO, the comfort score comes out to 48/100, strongly seasonal: Comfortable weather is limited to a shorter window; summers, winters, or precipitation swing wide. Only 5 months a year land in the 55–75°F range this site treats as mild.
How much Union's weather actually swings
Average temperatures in Union run from 33°F in Jan up to 79°F in Jul, a 46°F seasonal swing, one of the widest gaps in this dataset.
Union, month by month
| Month | Avg high | Avg low | Precip | Snow |
|---|---|---|---|---|
| Jan | 43°F | 23°F | 2.72in | 4.7in |
| Feb | 48°F | 26°F | 2.45in | 4.1in |
| Mar | 59°F | 35°F | 3.87in | 1.8in |
| Apr | 70°F | 45°F | 4.99in | 0.2in |
| May | 78°F | 55°F | 4.85in | 0in |
| Jun | 86°F | 63°F | 4.24in | 0in |
| Jul | 91°F | 67°F | 4.74in | 0in |
| Aug | 89°F | 66°F | 3.84in | 0in |
| Sep | 82°F | 57°F | 3.63in | 0in |
| Oct | 70°F | 46°F | 3.31in | 0in |
| Nov | 57°F | 35°F | 3.66in | 0.7in |
| Dec | 46°F | 27°F | 2.66in | 2.9in |
If you're timing a visit, Apr, May, Jun, Sep, and Oct are Union's mildest stretch; if you're moving there, you should plan around Jul's heat and Jan's cold instead.
How wet Union actually gets
Over a typical year, Union sees about 44.96in of precipitation a year across roughly 108 days with measurable rain or snow, with 14.4in of snow a year.
Union against the rest of the country
Out of 4876 cities scored here, Union comes in at 2407; within MO alone it ranks 48 of 135. Population is about 13,198.
Checking the actual forecast
These figures come from Union, MO US, the NOAA station 0.6 miles from Union, 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