Caldwell, ID Weather & Climate Normals
What a normal year in Caldwell actually looks like
On the 30-year record NOAA keeps for Caldwell, ID, 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 Caldwell's weather actually swings
Average temperatures in Caldwell run from 31°F in Jan up to 75°F in Jul, a 44°F seasonal swing, a middling gap by national standards.
Caldwell, month by month
| Month | Avg high | Avg low | Precip | Snow |
|---|---|---|---|---|
| Jan | 40°F | 23°F | 1.37in | 3.4in |
| Feb | 47°F | 26°F | 1.04in | 1.4in |
| Mar | 57°F | 32°F | 1.26in | 0.2in |
| Apr | 65°F | 36°F | 1.06in | 0in |
| May | 74°F | 44°F | 1.37in | 0in |
| Jun | 83°F | 51°F | 0.73in | 0in |
| Jul | 93°F | 57°F | 0.26in | 0in |
| Aug | 92°F | 56°F | 0.2in | 0in |
| Sep | 81°F | 47°F | 0.36in | 0in |
| Oct | 67°F | 37°F | 0.8in | 0in |
| Nov | 51°F | 28°F | 1.17in | 0.5in |
| Dec | 40°F | 23°F | 1.39in | 4.2in |
If you're timing a visit, May, Jun, Aug, and Sep are Caldwell's mildest stretch; if you're moving there, you should plan around Jul's heat and Jan's cold instead.
How wet Caldwell actually gets
Over a typical year, Caldwell sees about 11.01in of precipitation a year across roughly 82 days with measurable rain or snow, with 9.7in of snow a year.
Caldwell against the rest of the country
Out of 4876 cities scored here, Caldwell comes in at 4164; within ID alone it ranks 20 of 36. Population is about 73,088.
Checking the actual forecast
These figures come from Nampa Sugar Factory, ID US, the NOAA station 5.1 miles from Caldwell, 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