Derby, KS Weather & Climate Normals
Derby's real weather, in one number
Derby, KS scores 43/100 on this site's reading of NOAA's own 30-year normals: strongly seasonal. Comfortable weather is limited to a shorter window; summers, winters, or precipitation swing wide. 4 of the year's 12 months average between 55 and 75°F, the range this site counts as mild.
Derby's hottest and coldest months
Derby's hottest month is Jul, averaging 80°F; its coldest is Jan, averaging 32°F, a 48°F swing across the year, one of the widest gaps in this dataset.
Derby's weather across the year
| Month | Avg high | Avg low | Precip | Snow |
|---|---|---|---|---|
| Jan | 44°F | 21°F | 0.88in | 2.1in |
| Feb | 48°F | 25°F | 1.46in | 2.3in |
| Mar | 59°F | 34°F | 2.52in | 0.5in |
| Apr | 68°F | 44°F | 3.26in | 0in |
| May | 77°F | 55°F | 6.03in | 0in |
| Jun | 87°F | 65°F | 6.26in | 0in |
| Jul | 92°F | 69°F | 4.37in | 0in |
| Aug | 90°F | 67°F | 4.28in | 0in |
| Sep | 83°F | 58°F | 2.95in | 0in |
| Oct | 72°F | 45°F | 3.12in | 0in |
| Nov | 57°F | 33°F | 1.79in | 0.2in |
| Dec | 46°F | 24°F | 1.34in | 3in |
Apr, May, Sep, and Oct are the best time to see Derby at its mildest; the rest of the year, plan around Jul's heat and Jan's cold.
Rain and snow in Derby
Derby averages 38.26in of precipitation a year across roughly 78 days with measurable rain or snow, and 8.1in of snow a year.
Where Derby ranks
Derby ranks 3993 of 4876 US cities in this dataset for comfort score, and 23 of 63 within KS. About 26,604 people live there.
If you need tomorrow's forecast, not the 30-year average
Everything above is a 30-year average from Haysville 3se, KS US, 4.2 miles from Derby, not a prediction for any specific day.
More on how this is worked out
How the comfort score is calculated · Why some cities show no snow or rain figure