Climate averages 1991–2020
Centennial weather
in June.
A warm, moderately wet month: the 3rd warmest and the 10th driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
June is a warm month in Centennial: daytime highs average 25.8°C and nights cool to about 10.5°C. By daytime temperature it is the 3rd warmest of the 12 months.
Expect about 57 mm of rain on roughly 10 days, which makes June a moderately wet month (the 10th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 14 h 55 min on an average June day.
The nearest other city in this atlas is Highlands Ranch (8 km away). In June its highs average 25.7°C, about as warm as Centennial, with 57 mm of rain.
Among the 498 cities listed in the United States, Centennial ranks joint 333rd of 498 for the warmest June highs and joint 176th of 498 for the driest June (rainfall, lowest first). The mean June high of those 498 cities is 27.9°C; Centennial is 2.1°C cooler than that mean.
From June to July, average highs rise by 3.1°C to 28.9°C, and monthly rainfall falls from 57 mm to 56 mm.
The annual picture
June in context
Monthly rainfall
Average total · mmAverages from hourly ERA5 reanalysis data. Actual weather varies from year to year. How these numbers are calculated
Every month, side by side
Centennial climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 4.3°C-10.1°C | -10.1°C | 22 | 5.3 | 9.710 h |
| February | 5.6°C-9.2°C | -9.2°C | 24 | 5.7 | 10.711 h |
| March | 10.2°C-5.2°C | -5.2°C | 51 | 7.8 | 11.912 h |
| April | 13.7°C-1.2°C | -1.2°C | 75 | 10.0 | 13.213 h |
| May | 19.2°C4.8°C | 4.8°C | 88 | 12.5 | 14.314 h |
| June, selected | 25.8°C10.5°C | 10.5°C | 57 | 9.6 | 14.915 h |
| July | 28.9°C14.1°C | 14.1°C | 56 | 9.7 | 14.715 h |
| August | 27.7°C13.4°C | 13.4°C | 47 | 9.3 | 13.714 h |
| September | 23.8°C9.1°C | 9.1°C | 39 | 6.3 | 12.512 h |
| October | 16.5°C1.8°C | 1.8°C | 42 | 6.3 | 11.211 h |
| November | 9.2°C-5.4°C | -5.4°C | 31 | 5.9 | 10.010 h |
| December | 3.9°C-10.3°C | -10.3°C | 22 | 4.9 | 9.49 h |
Rainfall is the average of the 30 separate monthly totals. A rain day is a local calendar day with at least 1 mm of precipitation. Daylight is the calculated sunrise-to-sunset length, not measured sunshine.
Compare places
June in nearby cities
- Highlands Ranch in JuneUnited States · 8 kmHigh 25.7°C · Low 10.3°C · 57 mm rain
- Aurora (Colorado), United States in JuneUnited States · 17 kmHigh 27.3°C · Low 12.4°C · 40 mm rain
- Denver in JuneUnited States · 20 kmHigh 26.2°C · Low 10.9°C · 52 mm rain
- Lakewood in JuneUnited States · 22 kmHigh 26.0°C · Low 10.7°C · 52 mm rain
- Arvada in JuneUnited States · 31 kmHigh 25.9°C · Low 10.7°C · 52 mm rain
- Westminster (Colorado), United States in JuneUnited States · 32 kmHigh 26.1°C · Low 10.8°C · 52 mm rain
- Thornton in JuneUnited States · 33 kmHigh 25.9°C · Low 10.8°C · 52 mm rain
- Boulder in JuneUnited States · 59 kmHigh 25.6°C · Low 10.8°C · 77 mm rain
Read the numbers correctly
Climate, not a promise.
These patterns help compare months. They cannot tell you the weather on a specific day of your trip.
Sources, method and limitsHow these numbers are made (what the highs, lows and rain days mean, the sources and the model cell used for Centennial) is explained once on the Centennial year overview and on the Sources, method and limits page.
Highlands Ranch lies in the same rainfall cell, so its rainfall figures are identical to these; temperatures differ because they come from smaller 0.1° cells.